JP2012227842A - Video supply device and video supply method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display a superposed image with a juxtaposition system video without damaging visibility.SOLUTION: When a video to be supplied to a display unit is constituted by a juxtaposition system video in which respective display frames constituting the video to be output from the display device are compressed to a certain direction and multiple frames are juxtaposed, a video supply device includes: a superposition image generation unit 43 for generating a superposed image to the video; an image compression unit 44 for compressing the generated superposition image to the identical direction to the display frames with the identical compression ratio; and a superposition unit 45 for superposing the compressed superposition image at a relatively identical position to the video superposition position at least in one compressed display frame included in the frames.

Description

  The present invention relates to a method for displaying a video transmitted by a juxtaposition method, and more particularly to a video supply device and a video supply method for displaying another image superimposed on the video.

  When displaying a video, the display device can output a video to a monitor by continuously drawing a plurality of still images (hereinafter referred to as frames) constituting the video in a frame memory for each frame. . Here, one frame one frame output from the display device to the monitor is referred to as a display frame.

  Conventionally, there is a video compression method in which a plurality of display frames are compressed and arranged in one normal frame of such digital video. For example, two display frames are compressed in half in the horizontal direction (thinning out pixels, etc.) and arranged side by side in one frame, or two display frames are compressed in half in the vertical direction In addition, a top-and-bottom method in which the frames are arranged side by side in one frame can be used. In addition, a method of compressing in both the horizontal direction and the vertical direction and arranging more display frames in one frame is conceivable.

  As described above, if a juxtaposition method in which a plurality of display frames are juxtaposed with normal frames constituting video data is adopted, a video with the same number of display frames is configured with a small number of frames and transmitted or stored. be able to. Therefore, it is possible to improve the transmission efficiency of video data or to reduce the data capacity.

  When a video using a juxtaposed system (hereinafter referred to as a juxtaposed video) is supplied, the display device decodes the juxtaposed video and draws a display frame in one frame and one frame memory. Restore the original video. Specifically, the display frames juxtaposed in one frame are expanded to the original size, rearranged in a predetermined order, and sequentially output.

  The juxtaposition method is employed, for example, for stereoscopic video images that are configured to alternately output parallax left-eye images and right-eye images.

  For example, in Patent Documents 1 and 2, a video signal type discriminating device (or a stereoscopic image processing device) that discriminates whether or not the video is a stereoscopic video (or a juxtaposed video) from the video signal. Is disclosed.

  Patent Documents 3 and 4 disclose a telop display device (or a stereoscopic information output device) that superimposes and displays another image such as a telop or planar display information on a stereoscopic video.

JP 11-069384 A (published March 9, 1999) JP 2003-111101 A (published April 11, 2003) Japanese Patent Laid-Open No. 10-327430 (published December 8, 1998) JP 2010-130495 A (released on June 10, 2010)

  However, the techniques of the conventional patent documents 1 to 4 have a problem that the following inconveniences cannot be solved.

  2-4 is a figure explaining the subject in a prior art.

  Conventionally, when a juxtaposed video is supplied from an external video supply device to a display device, if there is another image generated by the video supply device itself, the video supply device displays the other image as It was superimposed on each frame of juxtaposed video.

  As shown in FIG. 2, as a result of processing the juxtaposed video by the video supply device, an image (superimposed image P) generated by the video supply device is superimposed on each frame (frame F1) in the juxtaposed video. For example, in the case of the side-by-side method, each frame includes a first display frame (display frame L1) and a second display frame (display frame R1) arranged side by side. In the example shown in FIG. 2, the display frame L1 and the display frame R1 are each compressed by half in the horizontal direction.

  It is assumed that a juxtaposed video including such a frame is supplied to the display device. The display device expands each of the display frame L1 and the display frame R1 shown in FIG. 2 twice in the horizontal direction. As a result of the display device decoding the juxtaposed video (for example, frame F1) shown in FIG. 2, the display frame L1 expanded to the original size shown in FIG. 3 and the original size shown in FIG. 4 are expanded. Display frame R1 is obtained. Then, all the expanded display frames including the display frame L1 and the display frame R1 are sequentially output in a predetermined order.

  As shown in FIGS. 3 and 4, the juxtaposed video is restored as it was, but the superimposed image P generated by the video supply device has a disadvantage that the original state is not reproduced. Specifically, the superimposed image P is unnecessarily divided based on the arrangement of the display frames at the time of compression, and is subjected to unnecessary expansion processing, and in the example shown in FIG. Thereby, when the superimposed image P is displayed on the display device, it is not visually recognized in its original state (the state of the superimposed image P in FIG. 2).

  For example, when the juxtaposition video shown in FIG. 2 is a stereoscopic video, and the left-eye display frame and the right-eye display frame are arranged in one frame, the left-eye display frame, The display frame for the right eye is alternately output at a high speed after restoration. Therefore, the piece P1 of the superimposed image P shown in FIG. 3 and the piece P2 shown in FIG. 4 are horizontally expanded twice and displayed in an overlapping manner. For this reason, there is a problem that not only the superimposed image P cannot be provided so that the user can appropriately visually recognize, but also the visibility of the video on which the superimposed image P is superimposed is significantly reduced.

  As the video supply device in which such a problem occurs, for example, a playback device that supplies a juxtaposed video to a display device, or a recording / playback device that further has a function of recording video is assumed. Not.

  Further, the above problem is not a problem that occurs only when a stereoscopic video is handled. This similarly occurs when a juxtaposed video in which a plurality of display frames are juxtaposed in one frame in every layout is handled.

  As a juxtaposed video that does not handle stereoscopic video, for example, two different unrelated videos are compressed in half in the horizontal direction, and the first display frame (display frame L1) and second video are displayed. A juxtaposed video image in which the video image of the display frame (display frame R1) is juxtaposed to the left and right is considered.

  In this juxtaposition-type video, when viewing by a plurality of people, it is possible to select which of the display frame L1 and the display frame R1 is to be viewed for each viewer, so that different videos can be simultaneously viewed by a plurality of people. It becomes possible to watch.

  Even in the juxtaposed video that does not handle stereoscopic video as described above, the same problem as in the case of handling the stereoscopic video.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a video supply apparatus capable of displaying a superimposed image together with a juxtaposed video without impairing visibility, and video supply To realize the method.

  In order to solve the above problems, the video supply device of the present invention is a video supply device that supplies video to a display device, and the video to be supplied to the display device is in each of the frames constituting the video. A superimposed image generating means for generating a superimposed image to be superimposed on the video when the display frame output by the display device is a video configured in a juxtaposed manner compressed in a predetermined direction and juxtaposed; Compression means for compressing the superimposed image generated by the superimposed image generation means in the same direction and the same compression ratio as the display frame, and at least one compression included in the frame for the superimposed image compressed by the compression means And a superimposing unit that superimposes the display frame on the display frame relatively at the same position as the superimposition position on the video.

  According to the above configuration, the video supply device is configured such that the video to be supplied to the display device is compressed in a predetermined direction and arranged in parallel in each of the frames constituting the video. In the case of an image configured in a juxtaposed system, the operation is as follows. First, the superimposed image generation unit generates a superimposed image to be superimposed on the video. Next, the compression means compresses the superimposed image in the same direction and the same compression rate as the display frame. Subsequently, the superimposing unit superimposes the compressed superimposed image on the at least one compressed display frame included in the frame at the same position as the superimposed position on the video.

  Accordingly, the video supply device can output a video in which a superimposed image compressed with the same direction and the same compression rate as the display frame is superimposed on the display frame. When the video output in this way is supplied to the display device, even if the display device performs a process of expanding the display frame, only the superimposed image is not unnaturally expanded. As a result, it is possible to display the superimposed image together with the juxtaposed image without impairing the visibility.

  In the video supply device, the video is a video in which two display frames output from the display device are compressed in half in a predetermined direction and juxtaposed in each frame constituting the video. Then, the compression means can compress the superimposed image in half in the predetermined direction.

  According to the above configuration, it is possible to output a video in which a superimposed image compressed with the same direction and the same compression ratio (1/2) as the display frame is superimposed on the display frame. When the video output in this manner is supplied to the display device, only the superimposed image is unnaturally expanded twice, even if the display device performs processing to expand the display frame. Disappears. As a result, it is possible to display the superimposed image together with the juxtaposed image without impairing the visibility.

  Further, in the video supply device, the video is a video in which two display frames output from the display device are compressed in half in the horizontal direction and juxtaposed in each of the frames constituting the video. And the said compression means can compress the said superimposition image to 1/2 in a horizontal direction.

  According to the configuration described above, it is possible to output a video in which a superimposed image compressed in the horizontal direction and at the same compression ratio (1/2) is superimposed on the display frame in the same manner as the display frame. When the video output in this way is supplied to the display device, only the superimposed image is unnaturally extended in the horizontal direction even if the display device performs processing to expand the display frame. Thus, it is possible to avoid the superimposed image from being displayed in a state where it is stretched horizontally by two times. As a result, it is possible to display the superimposed image together with the juxtaposed image without impairing the visibility.

  Alternatively, in the video supply device, the video is a video in which two display frames output from the display device are compressed in half in the vertical direction and juxtaposed in each of the frames constituting the video. And the said compression means can compress the said superimposition image to 1/2 in a perpendicular direction.

  According to the above configuration, it is possible to output a video in which a superimposed image compressed in the vertical direction and at the same compression ratio (1/2) is superimposed on the display frame in the same manner as the display frame. When the video output in this way is supplied to the display device, only the superimposed image is unnaturally extended in the vertical direction even if the display device performs processing to expand the display frame. Thus, it is possible to avoid displaying the superimposed image in a state where the superimposed image is stretched vertically twice. As a result, it is possible to display the superimposed image together with the juxtaposed image without impairing the visibility.

  Alternatively, in the video supply device, the superimposing unit may superimpose the superimposed image compressed by the compressing unit on all display frames included in the frame.

  According to the above configuration, on the display device side that has acquired the video from the video supply device, the superimposed image is superimposed and displayed together with all the display frames without being thinned, so the superimposed image flickers unnaturally. Or thinly displayed. Even when two different unrelated videos are combined into a juxtaposed video, superimposed images can be displayed on both videos. As a result, it becomes possible to further improve the visibility of the superimposed image and the video on which it is superimposed.

  In order to solve the above problems, the video supply device of the present invention is a video supply device that supplies video to a display device, and the video to be supplied to the display device is in each of the frames constituting the video. When the display frame output from the display device is a video composed of a juxtaposition method in which a plurality of juxtaposed images are compressed in a predetermined direction, a superimposed image generating unit that generates a superimposed image to be superimposed on the video, and compression Decompressing each display frame and restoring the video by connecting the decompressed display frames, and the same position as the superimposed position on the video on the display frame decompressed by the restoring means And a superimposing unit that superimposes the superimposed image generated by the superimposed image generating unit.

  According to the above configuration, the video supply device is configured such that the video to be supplied to the display device is compressed in a predetermined direction and arranged in parallel in each of the frames constituting the video. In the case of an image configured in a juxtaposed system, the operation is as follows. First, the superimposed image generation unit generates a superimposed image to be superimposed on the video. On the other hand, the restoration means decompresses each compressed display frame and restores the video by connecting the decompressed display frames. Finally, the superimposing unit superimposes the generated superimposed image at the same position as the superimposing position on the video on the expanded display frame.

  Thus, the video supply device can output a video in which a normal size superimposed image is superimposed on a display frame expanded to the original size. When the video output in this way is supplied to the display device, decompression or compression processing is not required on the display device side, and each expanded display frame is sequentially output to display the video. Therefore, only the superimposed image is not unnaturally expanded. As a result, it is possible to display the superimposed image together with the juxtaposed image without impairing the visibility.

  In the video supply device, the video is a video in which two display frames output from the display device are compressed in half in a predetermined direction and juxtaposed in each of the frames constituting the video. The video according to claim 6, wherein the superimposing unit superimposes the superimposed image on the same position as the superimposing position on the display frame expanded twice in the predetermined direction by the restoring unit. Feeding device.

  According to the above configuration, it is possible to output a video in which a superimposed image compressed with the same direction and the same compression ratio (1/2) as the display frame is superimposed on the display frame. When the video output in this manner is supplied to the display device, only the superimposed image is unnaturally expanded twice, even if the display device performs processing to expand the display frame. Disappears. As a result, it is possible to display the superimposed image together with the juxtaposed image without impairing the visibility.

  In the video supply device, the video may be a stereoscopic video, and the two display frames juxtaposed on the video may be a right-eye display frame and a left-eye display frame.

  According to the above configuration, when the display frame for the right eye and the display frame for the left eye are alternately output on the display device side, the following inconvenience can be avoided. For example, in a state where only the superimposed image is unnaturally expanded, there is no display with flickering (light display when the frame rate is sufficiently high). As a result, it is possible to display the superimposed image together with the juxtaposed image without impairing the visibility.

  In order to solve the above problems, the video supply device of the present invention is a video supply device that supplies video to a display device, and the video to be supplied to the display device is in each of the frames constituting the video. A superimposed image generating means for generating a superimposed image to be superimposed on the video when the display frame output by the display device is a video configured in a juxtaposed manner compressed in a predetermined direction and juxtaposed; The image processing apparatus includes: a transmission unit configured to transmit a video configured in a juxtaposed manner to the display device and to transmit the superimposed image to the display device.

  According to the above configuration, the video supply device is configured such that the video to be supplied to the display device is compressed in a predetermined direction and arranged in parallel in each of the frames constituting the video. In the case of an image configured in a juxtaposed system, the operation is as follows. First, the superimposed image generation unit generates a superimposed image to be superimposed on the video. Subsequently, the transmission means transmits the video configured by the juxtaposition method to the display device, and transmits the generated superimposed image to the display device without being superimposed on the video.

  Thereby, the display device can receive the video and the superimposed image in a state where they are not superimposed on each other. Since the display devices are not superimposed on each other, different display processes can be executed for the video and the superimposed image. Specifically, the display device performs processing for expanding the display frame to the original size for the video, and for the superimposed image of the normal size as it is without performing the processing for expansion. It can be superimposed on the display frame after expansion. Therefore, only the superimposed image is not unnaturally expanded. As a result, it is possible to display the superimposed image together with the juxtaposed image without impairing the visibility.

  In the video supply device, for example, the superimposed image represents a process execution state when the video supply device executes a process in response to a user instruction input, and the superimposed image generation unit includes the video supply unit. When the apparatus receives an instruction input from the user, a superimposed image corresponding to the instruction content may be generated.

  In the video supply device, for example, the superimposed image represents information related to a video on which the video supply device is executing a reproduction process for reproducing the video, and the superimposed image generation unit includes the video supply device. A superimposed image corresponding to the video for which the reproduction process is being performed may be generated.

  In the video supply device, for example, the superimposed image may represent a process execution state when the video supply device executes a recording process for recording a video in response to a user instruction input.

  In the video supply device, for example, the superimposed image represents information related to a video on which the video supply device performs a recording process for recording a video, and the superimposed image generation unit is configured by the video supply device. A superimposed image corresponding to the video for which the recording process is being performed may be generated.

  In the video supply device, for example, the superimposed image represents information related to a video on which the video supply device selects and receives a video and performs an image receiving process. A superimposed image corresponding to the video on which the video supply device is executing the image receiving process may be generated.

  In the video supply device, for example, the video configured by the juxtaposition method may be a video read from a recording medium readable by the video supply device.

  In the video supply device, for example, the video configured by the juxtaposition method is a video read from a recording medium readable by the video supply device or a video recorded in the video supply device. Also good.

  In the video supply device, for example, the video configured by the juxtaposition method may be a video received via a broadcast wave by the video supply device.

  For example, the video supply device may be a playback device that plays back video.

  For example, the video supply device may be a recording / playback device that records or plays back video.

  For example, the video supply device may be an image receiving device that selects and receives video.

  In order to solve the above problem, the video supply method of the present invention is a video supply method for supplying video to a display device, wherein the video to be supplied to the display device is in each of the frames constituting the video. A superimposed image generating step for generating a superimposed image to be superimposed on the video when the display frame output by the display device is a video configured in a juxtaposed manner compressed in a predetermined direction and juxtaposed; A compression step of compressing the superimposed image generated in the superimposed image generation step in the same direction and the same compression ratio as the display frame, and at least one of the superimposed images compressed in the compression step included in the frame And a superimposing step of superimposing the image on one of the compressed display frames at the same position as the superimposition position on the video.

  In order to solve the above problem, the video supply method of the present invention is a video supply method for supplying video to a display device, wherein the video to be supplied to the display device is in each of the frames constituting the video. A superimposed image generating step for generating a superimposed image to be superimposed on the video when the display frame output from the display device is a video configured in a juxtaposed manner compressed in a predetermined direction and juxtaposed; The decompression step of decompressing each display frame and restoring the video by connecting the decompressed display frames, and the same superposition position on the video on the display frame decompressed in the restoration step And a superimposition step of superimposing the superimposed image generated in the superimposed image generation step on the position.

  In order to solve the above problem, the video supply method of the present invention is a video supply method for supplying video to a display device, wherein the video to be supplied to the display device is in each of the frames constituting the video. A superimposed image generating step for generating a superimposed image to be superimposed on the video when the display frame output by the display device is a video configured in a juxtaposed manner compressed in a predetermined direction and juxtaposed; A transmission step of transmitting an image configured in a juxtaposed manner to the display device and transmitting the superimposed image to the display device.

  The video supply device may be realized by a computer. In this case, a video supply device control program for causing the video supply device to be realized by a computer by causing the computer to operate as the above-described means, and A computer-readable recording medium on which is recorded also falls within the scope of the present invention.

  In order to solve the above problems, the video supply device of the present invention is a video supply device that supplies video to a display device, and the video to be supplied to the display device is in each of the frames constituting the video. A superimposed image generating means for generating a superimposed image to be superimposed on the video when the display frame output by the display device is a video configured in a juxtaposed manner compressed in a predetermined direction and juxtaposed; Compression means for compressing the superimposed image generated by the superimposed image generation means in the same direction and the same compression ratio as the display frame, and at least one compression included in the frame for the superimposed image compressed by the compression means And a superimposing unit that superimposes the display frame on the display frame relatively at the same position as the superimposition position on the video.

  In order to solve the above problems, the video supply device of the present invention is a video supply device that supplies video to a display device, and the video to be supplied to the display device is in each of the frames constituting the video. When the display frame output from the display device is a video composed of a juxtaposition method in which a plurality of juxtaposed images are compressed in a predetermined direction, a superimposed image generating unit that generates a superimposed image to be superimposed on the video, Decompressing each display frame and restoring the video by connecting the decompressed display frames, and the same position as the superimposed position on the video on the display frame decompressed by the restoring means And a superimposing unit that superimposes the superimposed image generated by the superimposed image generating unit.

  In order to solve the above problems, the video supply device of the present invention is a video supply device that supplies video to a display device, and the video to be supplied to the display device is in each of the frames constituting the video. A superimposed image generating means for generating a superimposed image to be superimposed on the video when the display frame output by the display device is a video configured in a juxtaposed manner compressed in a predetermined direction and juxtaposed; The image processing apparatus includes: a transmission unit configured to transmit a video configured in a juxtaposed manner to the display device and to transmit the superimposed image to the display device.

  In order to solve the above problem, the video supply method of the present invention is a video supply method for supplying video to a display device, wherein the video to be supplied to the display device is in each of the frames constituting the video. A superimposed image generating step for generating a superimposed image to be superimposed on the video when the display frame output by the display device is a video configured in a juxtaposed manner compressed in a predetermined direction and juxtaposed; A compression step of compressing the superimposed image generated in the superimposed image generation step in the same direction and the same compression ratio as the display frame, and at least one of the superimposed images compressed in the compression step included in the frame And a superimposing step of superimposing the image on one of the compressed display frames at the same position as the superimposition position on the video.

  In order to solve the above problem, the video supply method of the present invention is a video supply method for supplying video to a display device, wherein the video to be supplied to the display device is in each of the frames constituting the video. A superimposed image generating step for generating a superimposed image to be superimposed on the video when the display frame output from the display device is a video configured in a juxtaposed manner compressed in a predetermined direction and juxtaposed; The decompression step of decompressing each display frame and restoring the video by connecting the decompressed display frames, and the same superposition position on the video on the display frame decompressed in the restoration step And a superimposition step of superimposing the superimposed image generated in the superimposed image generation step on the position.

  In order to solve the above problem, the video supply method of the present invention is a video supply method for supplying video to a display device, wherein the video to be supplied to the display device is in each of the frames constituting the video. A superimposed image generating step for generating a superimposed image to be superimposed on the video when the display frame output by the display device is a video configured in a juxtaposed manner compressed in a predetermined direction and juxtaposed; A transmission step of transmitting an image configured in a juxtaposed manner to the display device and transmitting the superimposed image to the display device.

  As a result, it is possible to display the superimposed image together with the juxtaposed image without impairing the visibility.

1, showing an embodiment of the present invention, is a functional block diagram showing a main configuration of a recording / reproducing apparatus. FIG. It shows a prior art and is a figure explaining the subject in a prior art. It shows a prior art and is a figure explaining the subject in a prior art. It shows a prior art and is a figure explaining the subject in a prior art. It is a block diagram which shows the hardware constitutions of the recording / reproducing apparatus of this invention. It is a block diagram which shows the hardware constitutions of the digital television of this invention. It is a figure which shows the specific example of a certain 1 frame in the 3D image | video acquired by the video | video acquisition part of the recording / reproducing apparatus. It is a figure which shows an example of the superimposed image which the superimposed image generation part of the recording / reproducing apparatus produced | generated. It is a figure which shows an example of the superimposed image after compression which the image compression part of the recording / reproducing apparatus produced | generated. It is a figure which shows the specific example of a certain frame in the image | video after the superimposition part of a recording / reproducing apparatus superimposes the superimposed image after compression. It is a figure explaining an example of the operation | movement which a video decompression | restoration part decompress | restores 3D video. It is a figure explaining an example of the operation | movement which a video decompression | restoration part decompress | restores 3D video. It is a figure which shows an example of a screen when a digital television restore | restores the image | video supplied from the recording / reproducing apparatus, and it output to the display. It is a flowchart which shows the flow of a process of the video display system in embodiment of this invention. FIG. 32, showing another embodiment of the present invention, is a functional block diagram illustrating a main configuration of a recording / reproducing device. It is a figure which shows the specific example of the image | video after decompression | restoration obtained when the video decompression | restoration part of a recording / reproducing apparatus decompress | restores each display frame of the original image | video from the frame of a juxtaposition system image | video. It is a figure which shows the specific example of the image | video obtained when the superimposition part of a recording / reproducing apparatus superimposes a superimposition image on the image | video after decompression | restoration. It is a flowchart which shows the flow of a process of the video display system in other embodiment of this invention. FIG. 24 is a functional block diagram illustrating still another embodiment of the present invention and showing a main configuration of a recording / reproducing apparatus and a main configuration of a digital television. It is a flowchart which shows the flow of a process of the video display system in further another embodiment of this invention.

  In the following embodiments, the video display system of the present invention will be described. The video supply device of the present invention and the display device of the present invention construct a video display system for reproducing and displaying a video.

  The video supply device of the present invention is a device that supplies video to a display device. Here, the video supply device of the present invention “supplies video to the display device” means that video can be directly supplied to and communicated with a display device that is communicably connected to the video supply device. Both indirectly via other devices (such as devices that process the video) connected to the.

  In the present embodiment, as an example, the video supply device in the video display system of the present invention is capable of transmitting and receiving information to and from the display device via appropriate connection means. The video supply device can supply the video reproduced by the device itself to the display device via the connection means. The display device can decode and output the video supplied from the video supply device to a monitor for display.

  The video supply apparatus of the present invention is not limited to this, but is a DVD (Digital Versatile Disc) recorder / player, HDD (Hard Disc drive) recorder / player, BD (Blu-ray Disc) recorder / player, digital video. The present invention can be applied to various playback devices or recording / playback devices that have a function of processing and playing at least a digital video signal and supplying it to the outside, such as a camera, a digital camera, and a personal computer (PC). In each of the following embodiments, a recording / reproducing apparatus such as a BD recorder is employed as an example of a video supply apparatus.

  Further, when a video processing device having a function of processing video supplies a processed video to a display device having a video display function, this video processing device is included in the video supply device of the present invention.

  Further, when an image receiving device having a function of selecting and receiving an image (for example, a tuner) supplies the received image to a display device having an image display function, the image receiving device is connected to the image supply device of the present invention. included.

  Furthermore, when an imaging device having a function of capturing a video (for example, a CCD camera) supplies the captured video to a display device having a video display function, this imaging device is included in the video supply device of the present invention. .

  In addition, the display device of the present invention is not limited to this, but can be applied to a digital television, a personal computer (PC), or the like that can process and display a digital video signal supplied from the outside. is there. Digital TV includes LCD TV, plasma TV, organic EL TV, cathode ray tube TV, HDD (Hard disk drive) recorder built-in TV, HDD player built-in TV, DVD (Digital Versatile Disc) recorder built-in TV, DVD player built-in TV, BD ( Blu-ray Disc) TV with built-in recorder, TV with built-in BD player, and the like. In the following embodiments, a 3D liquid crystal television (hereinafter referred to as a digital television) is employed as an example of a display device.

Embodiment 1
The embodiment of the present invention is described below with reference to FIGS.

[Hardware configuration of recording / reproducing apparatus]
FIG. 5 is a block diagram showing a hardware configuration of the recording / reproducing apparatus 100 according to the embodiment of the present invention. As shown in FIG. 5, the recording / reproducing apparatus 100 includes a tuner 1, a communication interface 2, an infrared light receiving unit 3, an external device interface 4, a signal processing circuit group 5, a control unit 10, a recording / reproducing circuit group 11, and a storage unit 6. HD drive 60, ROM 61, RAM 62, and BD drive 63 are provided.

  The control unit 10 performs overall control of the above units according to a control signal input to the recording / reproducing apparatus 100. As a control signal input to the recording / reproducing apparatus 100, a control signal input by an operation button (not shown) provided in the main body of the recording / reproducing apparatus 100, a control transmitted from a remote controller (not shown) and received by the infrared light receiving unit 3 Signals, control signals transmitted from external devices via the external device interface 4, control signals transmitted from network devices via the communication interface 2, and the like. Note that a functional configuration for realizing the functions of the present invention in the control unit 10 will be described in detail later.

  The tuner 1 is a terrestrial digital broadcast tuner for receiving a broadcast program (broadcast video) broadcast by terrestrial digital broadcast. The tuner 1 includes, for example, an RF unit that converts a received signal into an analog baseband signal, an ADC unit that converts an analog baseband signal into a digital baseband signal, a demodulation unit that demodulates an MPEG stream, for example, from the digital baseband signal, and It can be configured by a decoding unit that decodes a video signal and an audio signal from an MPEG stream or the like.

  When recording a broadcast program, the MPEG stream demodulated by the tuner 1 is supplied to the recording / reproducing circuit group 11 via the bus under the control of the control unit 10. When the acquired broadcast program is supplied to the digital television 200, the video signal and the audio signal decoded by the tuner 1 are supplied to a video selector and an audio selector (not shown), respectively, and then the signal processing circuit group 5 To be supplied. Note that the controller 10 controls which channel the tuner 1 selects as a demodulation target.

  The tuner 1 may be a double tuner that can simultaneously demodulate two MPEG streams broadcast via different channels. The tuner 1 is not limited to a double tuner, and may be, for example, a single tuner or a plurality of tuners including three or more tuners.

  The tuner 1 may be a satellite broadcast tuner for receiving a broadcast program broadcast by satellite broadcast.

  The communication interface 2 is an interface for connecting the recording / reproducing apparatus 100 to a network and various network devices. An example of the communication interface 2 is a LAN interface.

  The infrared light receiver 3 receives an infrared control signal transmitted from a remote controller (not shown) for remotely operating the recording / reproducing apparatus 100.

  The external device interface 4 is an interface for connecting an external device to the recording / reproducing device 100. Examples of the external device interface 4 include HDMI (High Definition Multimedia Interface), iLink, and the like.

  The signal processing circuit group 5 includes a circuit group for processing the video signal and the audio signal decoded by the tuner 1. The signal processing circuit group 5 includes, for example, a video processing circuit 15, a superimposed image generation circuit 16, a superimposition processing circuit 22, an audio processing circuit 17, and the like, similar to the signal processing circuit group 5 of the digital television 200 illustrated in FIG. 6. Contains.

  The video processing circuit 15 processes the video signal supplied from the video selector as required under the control of the control unit 10. Specifically, for example, the video processing circuit 15 executes image quality adjustment processing for adjusting the luminance, sharpness, contrast, and the like of the video represented by the video signal. Alternatively, the video processing circuit 15 may execute a scaling process that similarly enlarges or reduces the size of the video represented by the video signal. Furthermore, the video processing circuit 15 expands the display frame from each frame of the juxtaposed video and rearranges the expanded display frames in a predetermined order according to an instruction from the control unit 10 as necessary. May be executed.

  The superimposed image generation circuit 16 generates (renders) a superimposed image based on the superimposed data supplied from the control unit 10 under the control of the control unit 10. The superimposed image generated by the superimposed image generation circuit 16 includes information on the operation (recording, playback, pause, fast forward) of the recording / playback apparatus 100, such as the superimposed image P shown in FIG. Is assumed. Furthermore, an electronic program guide, a menu screen, an operation screen, etc. may be generated as a superimposed image. For the superimposed data, for example, SVG (Scalable Vector Graphics) can be used. The superimposed image generated by the superimposed image generation circuit 16 is superimposed on the video signal supplied from the video processing circuit 15 by the superimposition processing circuit 22.

  The superimposition processing circuit 22 superimposes the superimposed image generated by the superimposed image generation circuit 16 on the video signal supplied from the video processing circuit 15 under the control of the control unit 10. The video signal on which the superimposed image is superimposed is supplied to the digital television 200 via the external device interface 4.

  The sound processing circuit 17 performs a volume adjustment process or a sound quality adjustment process on the sound signal supplied from the sound selector as necessary under the control of the control unit 10. Here, the volume adjustment processing refers to changing the volume of the voice represented by the voice signal by processing the voice signal. The sound quality adjustment processing refers to changing the frequency characteristics of the sound represented by the sound signal by processing the sound signal (for example, low frequency emphasis or high frequency emphasis). The audio signal processed by the audio processing circuit 17 is supplied to the digital television 200 through the external device interface 4 together with the video signal.

  The storage unit 6 stores various data read by the control unit 10 in order for the recording / reproducing apparatus 100 to operate. In the present embodiment, the storage unit 6 of the recording / reproducing apparatus 100 includes, for example, an HD drive 60, a ROM 61, a RAM 62, and a BD drive 63.

  The HD drive 60 realizes recording or reproduction of information with respect to an HD (Hard Disc). Similar to the BD drive 63 shown in FIG. 5, the HD drive 60 includes the optical disc 7 (in this case, the optical disc is HD) and the optical pickup 9.

  The ROM 61 is a readable and non-writable memory in which fixed data such as a program executed by the control unit 10 is stored.

  On the other hand, the RAM 62 is a readable and writable memory in which variable data such as data referred to by the control unit 10 for calculation or data generated by the control unit 10 is stored.

  For example, the ROM 61 stores (1) a control program executed by the control unit 10, (2) an OS program, and (3) an application program for the control unit 10 to execute various functions. The RAM 62 stores (4) various data read when the application program is executed.

  The BD drive 63 realizes recording or reproduction of information with respect to a BD (Blu-ray Disc) as an optical disc. The BD drive 63 includes an optical disc 7 and an optical pickup 9. The optical pickup 9 includes an optical head 8 and records and reproduces data on the optical disc 7. The optical head 8 is movable in the optical axis direction and the radial direction that is the radial direction of the optical disc 7. During recording, the optical head 8 writes information by irradiating a predetermined recording position of the optical disc 7 with a light beam (laser beam) for recording information. The optical head 8 detects a reflected light obtained from the optical disc 7 by irradiating a predetermined reading position of the optical disc 7 with a light beam for reproduction at the time of reproduction, and the recording / reproducing circuit group 11 ( Output to the reproducing circuit 14).

  The recording / reproducing circuit group 11 includes a circuit group for recording and reproducing information with respect to the optical disc 7 under the control of the control unit 10. The recording / reproducing circuit group 11 includes, for example, a pickup driving circuit 12, a laser driving circuit 13, a reproducing circuit 14, and the like.

  The pickup driving circuit 12 drives the optical pickup 9 in accordance with a control signal from the control unit 10. The pickup driving circuit 12 drives the optical pickup 9 to move the optical pickup 9 with respect to a track (not shown) of the optical disc 7, that is, in the radial direction and the optical axis direction.

  The laser drive circuit 13 controls the output of the recording light beam or the reproduction light beam emitted from the optical head 8.

  The reproduction circuit 14 converts the reflected light detected by the optical head 8 into a reproduction signal and outputs it to the control unit 10.

[Hardware configuration of digital TV]
FIG. 6 is a block diagram showing a hardware configuration of the digital television 200 in the embodiment of the present invention. As shown in FIG. 6, the digital television 200 includes a tuner 1, a communication interface 2, an infrared light receiving unit 3, an external device interface 4, a signal processing circuit group 5, an LCD 19, an LCD controller 18, a speaker 21, a control unit 20, and a storage. A ROM 61 and a RAM 62 are provided as the unit 6.

  6 correspond to the reference numerals assigned to the respective constituent elements in FIG. 5, and the same reference numerals indicate the same constituent elements. Each component shown in FIG. 6 operates under the control of the control unit 20 so as to be compatible with the digital television 200, and the same reference numerals of the recording / reproducing apparatus 100 shown in FIG. Same as component. Therefore, the description which overlaps with the description about the component mentioned above is abbreviate | omitted here.

  The control unit 20 performs overall control of the above units according to a control signal input to the digital television 200. The functional configuration for realizing the functions of the present invention in the control unit 20 will be described in detail later.

  The signal processing circuit group 5 is a circuit group for processing the video signal and audio signal decoded by the tuner 1 or the video signal and audio signal supplied from the recording / reproducing apparatus 100 via the external device interface 4. Become. The signal processing circuit group 5 is, for example, the video processing circuit 15, the superimposed image generation circuit 16, the superimposition processing circuit 22, and the audio processing circuit 17 in the same manner as the signal processing circuit group 5 of the recording / reproducing apparatus 100 shown in FIG. Is included.

  In the present embodiment, the video processing circuit 15 expands the display frame from each frame of the juxtaposed video according to the instruction of the control unit 20 and arranges the expanded display frames in a predetermined order as necessary. The restoration process to be replaced is executed. When the video signal supplied from the recording / reproducing apparatus 100 already includes a superimposed image of the recording / reproducing apparatus 100, the video processing circuit 15 restores them together.

  The superimposed image generation circuit 16 renders the superimposed image generated by the own device (digital television 200) under the control of the control unit 20.

  The superimposed image generated by the superimposed image generation circuit 16 is superimposed on the video signal supplied from the video processing circuit 15 by the superimposition processing circuit 22. The video signal on which the superimposed image is superimposed is supplied from the superimposition processing circuit 22 to the LCD controller 18. The audio signal processed by the audio processing circuit 17 is supplied to the LCD controller 18 together with the video signal.

  Based on the video signal supplied from the video processing circuit 15, the LCD controller 18 drives the LCD 19 to display the video represented by the video signal. When the superimposed image is supplied from the superimposed image generation circuit 16, the LCD controller 18 displays the video represented by the video signal based on the video signal with the superimposed image supplied from the superimposition processing circuit 22. The LCD 19 is driven to display. In the present embodiment, a 3D liquid crystal television is adopted as an example of the digital television 200. For this purpose, the digital television 200 employs the LCD 19 as a display and the LCD controller 18 as a display controller. Therefore, when a television other than the 3D liquid crystal television is adopted as the digital television 200, a display and a display controller corresponding to the television are adopted.

  The speaker 21 outputs the sound represented by the sound signal based on the sound signal supplied from the sound processing circuit 17. The speaker 21 is driven to output sound by an amplifier (not shown).

[Functions of recording / playback device]
Next, the functional configuration of the recording / reproducing apparatus 100 will be described. FIG. 1 is a functional block diagram showing a main configuration of the recording / reproducing apparatus 100.

  As shown in FIG. 1, the control unit 10 of the recording / playback apparatus 100 includes, as functional blocks, a playback control unit 31, a recording control unit 32, a video acquisition unit 41, a display mode control unit 42, a superimposed image generation unit 43, and an image compression unit. 44 and a superimposing unit 45.

  Among these, the reproduction control unit 31 and the recording control unit 32 function as the recording / reproduction control unit 30. The recording / reproducing control unit 30 realizes a recording / reproducing function. The recording / reproducing function controls the recording / reproducing circuit group 11 and the BD drive 63 or the HD drive 60 to record and reproduce information on the optical disc. Refers to the function to be performed.

  The reproduction control unit 31 performs reproduction control on the loaded optical disc 7. That is, the pickup driving circuit 12, the laser driving circuit 13, and the reproducing circuit 14 are controlled to read data stored in the optical disc 7.

  The recording control unit 32 performs recording control on the loaded optical disk 7. That is, the pickup driving circuit 12 and the laser driving circuit 13 are controlled to write data at the storage position of the optical disc 7.

  Among the functional blocks described above, the video acquisition unit 41, the display mode control unit 42, the superimposed image generation unit 43, the image compression unit 44, and the superposition unit 45 function as the video processing control unit 40. The video processing control unit 40 realizes a video processing function. The video processing function controls the signal processing circuit group 5 and supplies it to the digital television 200 (or video signal and audio). Signal).

  The video acquisition unit 41 acquires a video signal from each unit controlled by the control unit 10. Specifically, the video acquisition unit 41 is a video signal acquired via the tuner 1, the communication interface 2, or the external device interface 4, a video signal reproduced by the recording / reproducing circuit group 11, or a storage unit. The video signal stored in 6 is acquired. The video acquisition unit 41 supplies the acquired video signal to the display mode control unit 42 and the superimposition unit 45.

  Based on the acquired video signal, the display mode control unit 42 determines whether to handle the video represented by the video signal as a frame sequential video or a juxtaposed video. The frame sequential method differs from the juxtaposed method described above in that each frame constituting the video has a one-to-one correspondence with the display frame, and the frames are arranged one by one in the order in which the display frames are displayed. This method In the present embodiment, as an example, hereinafter, a frame sequential video that is not intended for stereoscopic vision is referred to as a 2D video, and a juxtaposed video (stereoscopic video) that is intended for stereoscopic vision is referred to as a 3D video.

  The display mode control unit 42 performs an appropriate process on the video signal to determine whether the video signal is 2D video or 3D video. The layout of the display frame is determined, such as whether it is an and bottom system or another specific juxtaposition system.

  The display mode control unit 42 can determine the method of the input video based on the technique disclosed in Patent Document 1 or 2, for example. Alternatively, the input video method may be determined based on a method designated in advance by the user. In the configuration in which the video system is specified by the user, the display mode control unit 42 controls the video processing so that the video is recognized by the specified system, for example, according to the control signal received via the infrared light receiving unit 3. The display mode of each part of the part 40 is switched. Alternatively, if the input video is a broadcast program, the display mode control unit 42 represents the program information (for example, a 3D video, indicating that it is a 3D video) received by the tuner 1. The method may be determined based on whether the information is included.

  The method determined by the display mode control unit 42 is transmitted to the image compression unit 44 and the superimposition unit 45 of the video processing control unit 40.

  The superimposed image generation unit 43 controls the superimposed image generation circuit 16 to generate a superimposed image to be superimposed on the input video. For example, the superimposed image generation unit 43 generates a superimposed image to be superimposed on the video at a necessary timing according to the control signal received via the infrared light receiving unit 3. For example, the superimposed image is generated by SVG to be displayed at a predetermined position of the frame.

  The image compression unit 44 controls the superimposed image generation circuit 16 to compress the superimposed image generated by the superimposed image generation unit 43. In the present embodiment, the image compression unit 44 is generated at the same compression rate and the same compression direction as the display frame in accordance with the video format (display frame layout in each frame) recognized by the display mode control unit 42. Compress the superimposed image.

  For example, in each frame of the input video, when the display frame is compressed in half in the horizontal direction and two frames are arranged on the left and right, the image compression unit 44 displays the generated superimposed image. , Compressed in half in the horizontal direction.

  The superimposed image compressed by the image compression unit 44 is supplied to the superposition unit 45.

  The superimposing unit 45 controls the video processing circuit 15, the superimposed image generating circuit 16, and the superimposing processing circuit 22 to display the superimposed image generated by the superimposed image generating unit 43 on the video acquired by the video acquiring unit 41. Superimpose. The superimposing unit 45 controls the superimposition position and the superimposition timing so that the superimposed image with the predetermined display position is displayed at the predetermined position of each frame of the video. The video signal processed by the superimposing unit 45 is output to the external device interface 4 in a state where the superimposed image is superimposed. Then, it is supplied to the digital television 200 via the external device interface 4.

  Note that each unit shown as the functional block includes a RAM (random access memory) 62 that stores a program stored in a storage device such as a ROM (read only memory) 61 by a control unit 10 realized by a CPU (central processing unit). It can be realized by reading and executing the above.

  That is, for example, each unit of the video processing control unit 40 as a functional block shown in FIG. 1 realizes the above-described functions by controlling the signal processing circuit group 5 shown in FIG. To do.

  Next, with reference to FIGS. 7 to 13, the operation of each unit of the video processing control unit 40 for the recording / reproducing apparatus 100 to realize the video processing function will be described based on a specific example. The specific example illustrated below is an example for explaining the operation of each part of the present invention, and is not intended to limit the present invention.

  For example, the tuner 1 has already acquired a broadcast program that is a juxtaposed video, stored in the optical disc 7 of the BD drive 63, and an instruction to reproduce the broadcast program is received via the infrared light receiver 3. Then, the case where the data is input to the recording / reproducing apparatus 100 will be considered.

  First, the video acquisition unit 41 acquires the 3D video (video signal) of the broadcast program read from the optical disc 7 by the reproduction control unit 31. FIG. 7 is a diagram illustrating an example of one frame in the 3D video acquired by the video acquisition unit 41. In the example shown in FIG. 7, in the 3D video, the left-eye display frame 70 and the right-eye display frame 71 are horizontally compressed and arranged on the left and right for each frame. That is, the side-by-side method is adopted in the 3D video.

  Next, the display mode control unit 42 recognizes the input video format. Here, the display mode control unit 42 determines that the method for handling the 3D video is a side-by-side method of vertical × horizontal = 1 × 2.

  On the other hand, the superimposed image generation unit 43 generates a superimposed image corresponding to the event using a predetermined event as a trigger. The predetermined event is not particularly limited, for example, when an input of a control signal is received from a remote controller operated by the user, or when the recording / reproducing apparatus 100 starts a new operation. For example, while the recording / playback apparatus 100 is playing a broadcast program, a superimposed image may be generated so that a mark indicating “playing” is displayed, and a pause instruction is input from the remote control. When this is done, the superimposed image may be generated so that a mark indicating “temporarily stopped” is displayed. FIG. 8 is a diagram illustrating an example of a superimposed image generated by the superimposed image generation unit 43. In the example shown in FIG. 8, the superimposed image 72 is an image including the title of the broadcast program being reproduced and a mark indicating that the program is being reproduced.

  Next, the image compression unit 44 compresses the superimposed image generated by the superimposed image generation unit 43 in accordance with the method (or display frame layout) determined by the display mode control unit 42. Here, the display mode control unit 42 has determined that each display frame is a side-by-side format of vertical × horizontal = 1 × 2 in which the display frames are compressed in half in the horizontal direction. Accordingly, the image compression unit 44 similarly performs a process of compressing the superimposed image 72 shown in FIG. FIG. 9 is a diagram illustrating an example of the compressed superimposed image generated by the image compression unit 44. As shown in FIG. 9, the image compression unit 44 compresses the superimposed image 72 to generate a compressed superimposed image 73.

  Subsequently, when the compressed superimposed image 73 is supplied from the image compression unit 44, the superimposing unit 45 superimposes the compressed superimposed image 73 on the video supplied from the video acquisition unit 41. FIG. 10 is a diagram illustrating a specific example of one frame in the video after the superimposing unit 45 superimposes the compressed superimposed image. Based on the method determined by the display mode control unit 42, the superimposing unit 45 recognizes that the supplied video employs a side-by-side method in which the layout of the display frame is vertical × horizontal = 1 × 2. . Therefore, as shown in FIG. 10, the superimposing unit 45 superimposes the compressed superimposed image 73 compressed by the image compressing unit 44 on the predetermined positions of the left-eye display frame 70 and the right-eye display frame 71, respectively.

  Here, in the present embodiment, it is assumed that the display position and the display size of the superimposed image are determined in advance according to the content. For example, the superimposed image 72 shown in FIG. 8 is predetermined with (Xo, Yo) as the starting point when the upper left end of the frame is the origin (0, 0) and the lower right end of the frame is (Xmax, Ymax). It is determined to be displayed in size.

Therefore, the superimposing unit 45 superimposes the compressed superimposed image 73 at the same position as the display position on the frame of the original superimposed image 72 when superimposing the compressed superimposed image 73 on each display frame. . Specifically, as shown in FIG. 8, in the original frame, when the original superimposed image 72 is displayed starting from (Xo, Yo), the superimposing unit 45 is arranged on the left of the frame. The display position of the compressed superimposed image 73 to be superimposed on the left-eye display frame 70, that is, the start point (X _L , Y _L ) is obtained as follows.
X _L = 0 + 1/2 * Xo
Y _L = Yo
Further, the superimposing unit 45 obtains the display position of the compressed superimposed image 73 to be superimposed on the right-eye display frame 71 arranged on the right side of the frame, that is, the start point (X _R , Y _R ) as follows.
X _R = 1/2 * Xmax + 1/2 * Xo
Y _R = Yo
The above formula can be applied to the case where the display frame is compressed in half in the horizontal direction (X direction).

On the other hand, in the case of the top-and-bottom method in which the display frame is compressed to ½ in the vertical direction (Y direction) and the layout of the display frame is vertical × horizontal = 2 × 1, the superimposing unit 45 has the start point ( _XL , Y _L ) and the starting point (X _R , Y _R ) are determined as follows. In this case, it is assumed that the left-eye display frame 70 is disposed above and the right-eye display frame 71 is disposed below.
X _L = Xo
Y _L = 0 + 1/2 * Yo
X _R = Xo
Y _R = 1/2 * Ymax + 1/2 * Yo
In the present embodiment, the configuration has been described in which the superimposing unit 45 superimposes the compressed superimposed image 73 on both the left-eye display frame 70 and the right-eye display frame 71. However, the recording / reproducing apparatus 100 of the present invention is not limited thereto. The configuration is not limited to the above.

  The superimposing unit 45 may superimpose the compressed superimposed image 73 on at least one of the left-eye display frame 70 and the right-eye display frame 71 that are divided into two. Since the left-eye display frame 70 and the right-eye display frame 71 are alternately displayed at high speed, if the post-compression superimposed image 73 is arranged on either the left-eye display frame 70 or the right-eye display frame 71, The user can visually recognize the superimposed image without any problem. However, in order to display both eyes without a sense of incongruity, it is desirable that the superimposing unit 45 arranges the compressed superimposed image 73 on both the left-eye display frame 70 and the right-eye display frame 71 as described above.

  The superimposing unit 45 may specify a starting point at the same position as the original on each display frame, and may further add parallax to the superimposed image. The superimposing unit 45 adds the superimposed position of the compressed superimposed image 73 superimposed on the left-eye display frame 70 and the superimposed position of the compressed superimposed image 73 superimposed on the right-eye display frame 71 in order to add parallax to the superimposed image. You may fine-tune based on the specified starting point. As a method of adding parallax to the compressed superimposed image 73, for example, techniques disclosed in Patent Documents 3 and 4 can be employed.

  As described above, the video signal to which the superimposed image is added is supplied to the digital television 200 via the external device interface 4.

  In the digital television 200, the display mode control unit of the control unit 20 (not shown) recognizes that the video based on the video signal is a side-by-side format of vertical × horizontal = 1 × 2. Then, a video restoration unit (not shown) expands the left-eye display frame and the right-eye display frame of each frame twice in the horizontal direction. Further, the video restoration unit restores the video by outputting the expanded display frames in a predetermined order (here, alternately for the left eye and for the right eye).

  11 and 12 are diagrams illustrating an example of an operation in which the video restoration unit of the digital television 200 restores 3D video.

  For example, when the side-by-side 3D video 74 shown in FIG. 11 is supplied, the video restoration unit expands the display frames L1, R1, L2, R2, L3, R3. The decompressed display frames are arranged in the same order to restore the video. A post-restoration video 75 in the figure shows a frame sequential video restored by the video restoration unit. When the top-and-bottom 3D video 76 is supplied, the video restoration unit expands the display frames L1, R1, L2, R2, L3, R3. The display frames are arranged in the same order to restore the video, and the restored video 75 is generated.

  Further, the video restoration unit of the digital television 200 may be able to restore a video that employs a juxtaposition system of vertical × horizontal = 2 × 2. As shown in FIG. 12, when a 3D video 77 of a juxtaposition system of vertical × horizontal = 2 × 2 is supplied, the video restoration unit performs display frames L1, R1, L2, R2, L3, R3, L4, R4, and L5. , R5, L6, R6... Are expanded twice in the horizontal direction and the vertical direction, respectively, and the expanded display frames are arranged in the same order to restore the video, and the restored video 75 shown in FIG. May be.

  In this case, the superimposing unit 45 of the recording / reproducing apparatus 100 converts the compressed superimposed image 73 compressed by 1/2 in the vertical and horizontal directions into all four display frames or one of the left-eye display frame and the right-eye display frame (2 On the sheet).

  Thus, according to the recording / reproducing apparatus 100 in the present embodiment of the present invention, the superimposed image 72 generated by the recording / reproducing apparatus 100 is compressed at the same compression rate in the same compression direction as the display frame in the juxtaposed video. In this state (superimposed image 73 after compression), it can be superimposed at the same relative position. Therefore, when such 3D video is restored on the digital television 200 side, the superimposed image 72 is displayed on the LCD 19 of the digital television 200 in the same state as the original superimposed image 72 without unnecessary division and expansion. Is done.

  FIG. 13 is a diagram illustrating an example of the screen of the LCD 19 when the video supplied from the recording / reproducing apparatus 100 is restored by the digital television 200 and output to the LCD 19. As shown in FIG. 13, when the video restoration unit of the digital television 200 restores the 3D video (3D video shown in FIG. 10) supplied from the recording / playback device 100, the superimposed image 72 is subjected to unnecessary segmentation and expansion. Without being restored.

  Thus, according to the recording / reproducing apparatus 100 of the present invention, it is possible to realize a video display system capable of displaying a superimposed image together with a juxtaposed video without impairing visibility.

[Processing flow of video display system]
FIG. 14 is a flowchart showing the flow of processing in the video display system in the present embodiment.

  For example, when the infrared light receiving unit 3 of the recording / reproducing apparatus 100 receives a control signal for reproducing a recorded video (YES in S101), the reproduction control unit 31 starts a video reproduction process, and the video is displayed as a video. This is supplied to the video acquisition unit 41 of the processing control unit 40. The video acquisition unit 41 acquires the video signal of the video to be played (for example, FIG. 7) supplied from the playback control unit 31 (S102).

  Subsequently, when an event that triggers generation of a superimposed image does not occur in the recording / reproducing apparatus 100 (NO in S103), the video acquired by the video acquisition unit 41 is not processed in the superimposition unit 45 (that is, no processing is performed). The image is supplied to the digital television 200 via the external device interface 4 (with no superimposed image attached) (S110).

  On the other hand, when an event that triggers generation of a superimposed image occurs (YES in S103), the superimposed image generation unit 43 generates a superimposed image (for example, FIG. 8) corresponding to the generated event (S104).

  Note that in the configuration in which the video reproduction instruction itself in S101 is always a trigger for generating a superimposed image, the step of determining whether or not a trigger for generating a superimposed image has occurred: S103 is unnecessary. Therefore, in such a case, the recording / reproducing apparatus 100 may be configured to transit to S104: a step of generating a superimposed image according to all video reproduction instructions without branching to S110 after S102.

  The display mode control unit 42 determines the method of the video acquired in S102 at any time from the completion time of S102 to the start time of S106 or S107. When the display mode control unit 42 determines that the video system is not the juxtaposed system, that is, when it is determined that the video system is the frame sequential system (NO in S105), the superimposing unit 45 is acquired by the video acquisition unit 41. The superimposed image generated in S104 is superimposed on the video (S106), and the video is output. The video output by the superimposing unit 45 is supplied to the digital television 200 via the external device interface 4 (S110).

  On the other hand, when the display mode control unit 42 determines that the video system is the juxtaposed system (YES in S105), the display mode control unit 42 further specifies the layout of the display frame in the video (S107). . Here, as shown in FIG. 7, it is assumed that the side-by-side method of length × width = 1 × 2 is specified.

  Subsequently, the image compression unit 44 compresses the superimposed image generated in S104 according to the specified layout of the display frame (S108). For example, here, as with the specified display frame, the image compression unit 44 generates a compressed superimposed image (for example, FIG. 9) compressed in half in the horizontal direction.

  Finally, the superimposing unit 45 superimposes the compressed superimposed image generated in S108 on the video acquired in S102 (S109). The video after the superimposed image is added (for example, FIG. 10) is output to the external device interface 4 and supplied to the digital television 200 via the external device interface 4 (S110).

  Here, in the recording / reproducing apparatus 100, for example, unless an input of a video end instruction is received from a remote controller operated by the user (NO in S111), the recording / reproducing apparatus 100 performs the above-described processing (ie, video reproduction). Continue. That is, the process returns to step S102. On the other hand, when the input of the video end instruction is accepted (YES in S111), the video playback ends.

  On the other hand, in the digital television 200, when the external device interface 4 acquires the video supplied from the recording / reproducing apparatus 100 (YES in S201), the display mode control unit of the control unit 20 of the digital television 200 is acquired. The video system is determined (S202). Here, when the display mode control unit determines that the video system is not the juxtaposed system (NO in S202), the signal processing circuit group 5 of the digital television 200 sequentially sequentially displays each frame of the frame sequential system. The image is output and displayed on the LCD 19 (S205).

  On the other hand, when the display mode control unit determines that the video method is the juxtaposition method (YES in S202), the display mode control unit specifies the layout of the display frame in the video (S203). Here, as shown in FIG. 7, it is assumed that the side-by-side method of length × width = 1 × 2 is specified.

  Subsequently, the video restoration unit restores the video acquired in S201 according to the layout of the display frame specified in S203. Specifically, the display frames arranged in each frame of the video are each doubled in the horizontal direction (S204). Then, the expanded display frames are arranged in a predetermined order. Here, as shown in FIG. 11, the video restoration unit obtains a restored video 75 from the 3D video 74.

  Finally, the restored video 75 generated by the signal processing circuit group 5 under the control of the video restoration unit is displayed on the LCD 19 with each display frame being sequentially output (S205).

  According to the above method, the superimposed image generated by the recording / reproducing apparatus 100 is relatively compressed in the same compression direction as the display frame in the juxtaposed video at the same compression rate (compressed superimposed image 73). It can be superimposed at the same position. Therefore, when such 3D video is restored on the digital television 200 side, the superimposed image 72 is displayed on the LCD 19 of the digital television 200 in the same state as the original superimposed image 72 without unnecessary division and expansion. Is done.

  As a result, it is possible to realize a video display system that can display a superimposed image together with a juxtaposed video without impairing visibility.

  In addition, according to the above configuration, the digital television 200 only restores the juxtaposed video supplied from the recording / reproducing apparatus 100 as in the past. That is, in order for the superimposed image of the recording / reproducing apparatus 100 to be properly displayed on the digital television 200, the recording / reproducing apparatus 100 of the present invention is sufficient, and it is not necessary to improve the configuration on the digital television 200 side. In consideration of the fact that the digital television 200 is usually more expensive than the recording / reproducing apparatus 100 and is more widely distributed / spread, it is easier and cheaper to introduce the recording / reproducing apparatus 100. In addition, since the video display system of the present invention can be realized, there are great advantages for both the manufacturer and the user.

<< Embodiment 2 >>
In the first embodiment described above, the recording / reproducing apparatus 100 is configured to supply the video to the digital television 200 in a juxtaposed manner, and the recording / reproducing apparatus 100 also compresses the superimposed image in accordance with the compressed display frame. explained. The present invention is not limited to the above configuration.

  The recording / reproducing apparatus 100 of the present invention may be configured to restore a juxtaposed video and supply it to the digital television 200 in a frame sequential manner, and to add a superimposed image prior to the supply. . An embodiment of the present invention with respect to this configuration will be described below with reference to FIGS.

  Note that the hardware configurations of the recording / reproducing apparatus 100 and the digital television 200 in the present embodiment are the same as those described in the first embodiment, and will be omitted.

[Functions of recording / playback device]
Next, a functional configuration of the recording / reproducing apparatus 100 in the present embodiment will be described. FIG. 15 is a functional block diagram showing the main configuration of the recording / reproducing apparatus 100. For convenience of explanation, members having the same functions as those in the drawings described in the first embodiment are given the same reference numerals, and duplicate descriptions are omitted as appropriate.

  As shown in FIG. 15, the control unit 10 of the recording / reproducing apparatus 100 in the present embodiment includes, as functional blocks, a reproduction control unit 31, a recording control unit 32, a video acquisition unit 41, a display mode control unit 42, and a superimposed image generation unit 43. , A video restoring unit 46 and a superimposing unit 45 are provided. That is, as compared with the recording / reproducing apparatus 100 shown in FIG. 1, a video restoration unit 46 is provided instead of the image compression unit 44.

  The video restoration unit 46 controls the video processing circuit 15 to restore the juxtaposed video to the frame sequential video. When the display mode control unit 42 determines that the input video is the juxtaposition method, the video restoration unit 46 restores the video according to the layout of the display frame specified by the display mode control unit 42.

  For example, for the video acquired by the video acquisition unit 41, the display mode control unit 42 is a side-by-side method in which display frames compressed in the horizontal direction are arranged on the left and right in a layout of vertical × horizontal = 1 × 2. Is assumed. In this case, the video restoration unit 46 expands each display frame included in each frame of the video twice in the horizontal direction. Then, the display frames expanded as they are are arranged in a predetermined order and output to the superimposing unit 45. For example, the video restoration unit 46 obtains a restored video 75 from the 3D video 74 as shown in FIG. More specifically, when the 3D video shown in FIG. 7 is obtained, the video restoration unit 46 sets the left-eye display frame 70 and the right-eye display frame 71 in the horizontal direction, as shown in FIG. A stretched left-eye display frame 70 ′ and a stretched right-eye display frame 71 ′ that are doubled are generated.

  When the superimposed image is output from the superimposed image generating unit 43, the superimposing unit 45 adds the superimposed image to the frame sequential video output from the video restoring unit 46 and outputs the video to the external device interface 4. To do. For example, when the superimposed image 72 shown in FIG. 8 is output, the superimposing unit 45 superimposes it on the default display position of each display frame as shown in FIG.

  Thus, the video (FIG. 17) to which the superimposed image generated by the recording / reproducing apparatus 100 is added is supplied to the digital television 200 via the external device interface 4 as a frame sequential video.

[Processing flow of video display system]
FIG. 18 is a flowchart showing the flow of processing in the video display system in the present embodiment.

  For example, when the infrared light receiving unit 3 of the recording / reproducing apparatus 100 receives a control signal for reproducing the recorded video (YES in S301), the reproduction control unit 31 starts the video reproduction process, and the video is This is supplied to the video acquisition unit 41 of the processing control unit 40. The video acquisition unit 41 acquires the video signal of the video to be played (for example, FIG. 7) supplied from the playback control unit 31 (S302).

  Subsequently, the display mode control unit 42 determines the method of the video acquired in S302 (S303). When the display mode control unit 42 determines that the video method is not the juxtaposition method, that is, when the display mode control unit 42 determines that the video method is a frame sequential method (NO in S303), the video is subjected to processing by the video restoration unit 46. Without being supplied to the superimposing unit 45.

  On the other hand, when the display mode control unit 42 determines that the video system is the juxtaposition system (YES in S303), the display mode control unit 42 further specifies the layout of the display frame in the video (S304). . Here, as shown in FIG. 7, it is assumed that the side-by-side method of length × width = 1 × 2 is specified.

  Then, the video restoration unit 46 restores the juxtaposed video according to the determination of the display mode control unit 42 (S305). For example, as illustrated in FIG. 16, the video restoration unit 46 generates a stretched left-eye display frame 70 ′ and a stretched right-eye display frame 71 ′. The restored video is supplied to the superimposing unit 45.

  Subsequently, when an event that triggers generation of a superimposed image does not occur in the recording / reproducing apparatus 100 (NO in S306), the video acquired by the video acquisition unit 41 is not processed in the superimposition unit 45 (that is, no processing is performed). The image is supplied to the digital television 200 via the external device interface 4 (with no superimposed image attached) (S309).

  On the other hand, when an event that triggers generation of a superimposed image occurs (YES in S306), the superimposed image generation unit 43 generates a superimposed image (for example, FIG. 8) corresponding to the generated event (S307). The generated superimposed image 72 is supplied to the superimposing unit 45. Then, the superimposing unit 45 superimposes the superimposed image generated in S307 on the video acquired by the video acquiring unit 41 (S308), and outputs the video (for example, FIG. 17). The video output by the superimposing unit 45 is supplied to the digital television 200 via the external device interface 4 (S309).

  Here, in the recording / reproducing apparatus 100, for example, unless an input of a video end instruction is received from a remote controller operated by the user (NO in S310), the recording / reproducing apparatus 100 performs the above-described processing (ie, video reproduction). Continue. That is, the process returns to step S302. On the other hand, when input of a video end instruction is accepted (YES in S310), video playback ends.

  Note that, in the configuration in which the input of the video reproduction instruction itself in S301 is necessarily a trigger for generating a superimposed image, the step of determining whether or not a trigger for generating a superimposed image has occurred: S306 is unnecessary. Therefore, in such a case, the recording / reproducing apparatus 100 may be configured to execute step S307 of generating a superimposed image for all restored videos without branching to S309 after S305. .

  In response to the operation of S309 of the recording / reproducing device 100, in the digital television 200, when the external device interface 4 acquires the video supplied from the recording / reproducing device 100 (YES in S401), the signal processing circuit group 5 of the digital television 200 Then, each frame sequential display frame is sequentially output to display an image on the LCD 19 (S402).

  According to the configuration and method described above, the superimposed image generated by the superimposed image generation unit 43 is superimposed after the juxtaposed video is restored by the video restoration unit 46, and the superimposed image remains as it is before restoration. There is no overlap.

  Therefore, it is avoided that the superimposed image is subjected to unnecessary division or unnecessary expansion processing, and a video signal obtained by synthesizing the 3D video and the superimposed image generated by the recording / reproducing apparatus 100 is used as a conventional frame sequential video. It becomes possible to supply to the digital television 200 in the same manner as.

  The digital television 200 may process the received video in the same manner as a conventional frame sequential video and display it on the LCD 19.

  As a result, it is possible to realize a video display system that can display a superimposed image together with a juxtaposed video without impairing visibility.

  In addition, according to the above configuration, the digital television 200 does not even need a function of restoring juxtaposed video. That is, in order for the superimposed image of the recording / reproducing apparatus 100 to be properly displayed on the digital television 200, the recording / reproducing apparatus 100 of the present invention is sufficient, and it is not necessary to improve the configuration on the digital television 200 side. Further, the digital television 200 is not required to have a function for restoring juxtaposed video. In consideration of the fact that the digital television 200 is usually more expensive than the recording / reproducing apparatus 100 and is more widely distributed / spread, it is easier and cheaper to introduce the recording / reproducing apparatus 100. In addition, since the video display system of the present invention can be realized, there are great advantages for both the manufacturer and the user.

<< Embodiment 3 >>
In the first and second embodiments described above, when the superimposed image of the recording / reproducing apparatus 100 is added to the video, the superimposed image is added in the recording / reproducing apparatus 100. The present invention is not limited to the above configuration.

  The recording / reproducing apparatus 100 of the present invention is configured to separately supply the superimposed image generated by the own apparatus and the video to be displayed to the digital television 200 without synthesizing, and the digital television 200 of the present invention includes: The own apparatus may be configured to display the received superimposed image superimposed on the received video. An embodiment of the present invention with respect to this configuration will be described below with reference to FIGS. 7, 8, 16, 17, 19, and 20.

  Note that the hardware configurations of the recording / reproducing apparatus 100 and the digital television 200 in the present embodiment are the same as those described in the first embodiment, and will be omitted.

[Recording / playback device functions and digital TV functions]
Next, functional configurations of the recording / reproducing apparatus 100 and the digital television 200 in the present embodiment will be described. FIG. 19 is a functional block diagram showing a main part configuration of the recording / reproducing apparatus 100 and a main part configuration of the digital television 200. For convenience of explanation, members having the same functions as those in the drawings described in the first and second embodiments are given the same reference numerals, and redundant descriptions are omitted as appropriate.

  As shown in FIG. 19, the control unit 10 of the recording / reproducing apparatus 100 in the present embodiment includes a reproduction control unit 31, a recording control unit 32, a video acquisition unit 41, a superimposed image generation unit 43, and a transmission control unit as functional blocks. 47 is provided.

  The transmission control unit 47 supplies the video output from the video acquisition unit 41 to the digital television 200 via the external device interface 4, while the superimposed image output from the superimposed image generation unit 43 is transmitted to the external device interface 4 or It is supplied to the digital television 200 using other communication means. The transmission control unit 47 transmits the video and the superimposed image to the digital television 200 as separate data without combining them. However, the transmission control unit 47 supplies the superimposed image to the digital television 200 in association with the video so that the superimposed image is definitely combined with the video.

  On the other hand, the control unit 20 of the digital television 200 in the present embodiment includes a video acquisition unit 41, a display mode control unit 42, a superimposition unit 45, a video restoration unit 46, and a superimposed image acquisition unit 48 as functional blocks. . Each of the above-described units of the control unit 20 functions as the video processing control unit 40. The video processing control unit 40 of the digital television 200 realizes a video processing function. The video processing function controls the signal processing circuit group 5 and supplies it to the LCD 19 (or video signal). And an audio signal).

  In addition, each part of the control part 20 shown as the said functional block is a program (RAM (random only)) which the control part 20 implement | achieved by CPU (central processing unit) memorize | stored in memory | storage devices, such as ROM (read only memory) 61. access memory) 62 etc., and can be realized.

  That is, for example, each unit of the video processing control unit 40 of the control unit 20 as a functional block shown in FIG. 19 controls the signal processing circuit group 5 shown in FIG. The following functions are realized.

  The video acquisition unit 41 acquires the video supplied from the transmission control unit 47 of the recording / playback apparatus 100 via the external device interface 4.

  The superimposed image acquisition unit 48 acquires a superimposed image of the recording / reproducing apparatus 100 associated with the video supplied from the transmission control unit 47. The superimposed image acquisition unit 48 outputs the acquired superimposed image to the superimposition unit 45.

  When the method determined by the display mode control unit 42 is the juxtaposition method, the video restoration unit 46 decompresses and restores the display frames arranged in each frame of the video. If the method determined by the display mode control unit 42 is the frame sequential method, the video acquired by the video acquisition unit 41 is output to the superimposing unit 45 without performing processing such as decompression.

  When the superimposed image is output from the superimposed image acquisition unit 48, the superimposing unit 45 superimposes the superimposed image on the frame sequential video supplied from the video restoration unit 46.

  The video output by the superimposing unit 45 is output to the LCD 19 via the LCD controller 18.

  Note that the transmission control unit 47 of the recording / reproducing apparatus 100 displays the video and the superimposed image at an appropriate timing while separately supplying the video and the superimposed image. You may go.

  When an event that causes the superimposed image generation unit 43 to generate a superimposed image occurs and the superimposed image is generated, the transmission control unit 47 displays time information at the time when the superimposed image is generated, that is, the time at which the event occurs. The superimposed image is stored in association with the first frame, and the superimposed image is supplied to the digital television 200.

  On the other hand, on the digital television 200 side that has received the video and the superimposed image, when the video is output, the display frame time associated with each display frame of the video and the first frame of the superimposed image are associated. Check the current time information. In this way, the digital television 200 can synthesize and output the superimposed image from the display frame time that coincides with the time information. Therefore, the video and the superimposed image are supplied separately, and the appropriate timing can be obtained. Thus, it is possible to realize the digital television 200 that can superimpose the superimposed image on the video.

[Processing flow of video display system]
FIG. 20 is a flowchart showing the flow of processing in the video display system according to this embodiment.

  For example, when the infrared light receiving unit 3 of the recording / reproducing apparatus 100 receives a control signal for reproducing a recorded video (YES in S501), the reproduction control unit 31 starts a video reproduction process, and the video is displayed as a video. This is supplied to the video acquisition unit 41 of the processing control unit 40. The video acquisition unit 41 acquires the video signal of the video to be played (for example, FIG. 7) supplied from the playback control unit 31 (S502).

  Subsequently, when the event that triggers the generation of the superimposed image does not occur in the recording / reproducing apparatus 100 (NO in S503), the transmission control unit 47 displays only the video acquired by the video acquisition unit 41 (that is, what superimposition does not occur). The image is also supplied to the digital television 200 via the external device interface 4 (S504).

  On the other hand, when an event that triggers generation of a superimposed image occurs (YES in S503), the superimposed image generation unit 43 generates a superimposed image (for example, FIG. 8) corresponding to the generated event (S505). The generated superimposed image is supplied to the transmission control unit 47. Then, the transmission control unit 47 outputs the superimposed image together with the video as data separate from the video acquired by the video acquisition unit 41 (S506). The video and the superimposed image output from the transmission control unit 47 are supplied to the digital television 200 via the external device interface 4.

  Here, in the recording / reproducing apparatus 100, for example, unless an input of a video end instruction is received from a remote controller operated by the user (NO in S507), the recording / reproducing apparatus 100 performs the above-described processing (that is, video reproduction). Continue. That is, the process returns to step S502. On the other hand, when the input of the video end instruction is accepted (YES in S507), the video playback ends.

  Note that, in the configuration in which the input of the video reproduction instruction itself in S501 always serves as a trigger for generating a superimposed image, the step of determining whether or not a trigger for generating a superimposed image has occurred: S503 is unnecessary. Therefore, in such a case, the recording / reproducing apparatus 100 may be configured to transit to S505 in which a superimposed image is generated in response to all video reproduction instructions without branching to S504 after S502.

  In response to the operation of S504 or S506 of the recording / reproducing apparatus 100, in the digital television 200, when the external device interface 4 receives the video (or video and superimposed image) supplied from the recording / reproducing apparatus 100 (YES in S601). The video acquisition unit 41 acquires a video (when a superimposed image is associated, the superimposed image acquisition unit 48 acquires this).

  Subsequently, the display mode control unit 42 determines the format of the video received in S601 (S602). When the display mode control unit 42 determines that the video method is not the juxtaposition method, that is, when it is determined that the video method is a frame sequential method (NO in S602), the video is subjected to processing by the video restoration unit 46. Without being supplied to the superimposing unit 45.

  On the other hand, when the display mode control unit 42 determines that the video system is the juxtaposition system (YES in S602), the display mode control unit 42 further specifies the layout of the display frame in the video (S603). . Here, as shown in FIG. 7, it is assumed that the side-by-side method of length × width = 1 × 2 is specified.

  Then, the video restoration unit 46 restores the juxtaposed video according to the determination of the display mode control unit 42 (S604). For example, as illustrated in FIG. 16, the video restoration unit 46 generates a stretched left-eye display frame 70 ′ and a stretched right-eye display frame 71 ′. The restored video is supplied to the superimposing unit 45.

  Next, when the superimposed image is received by the superimposed image acquisition unit 48 in S601 (YES in S605), the superimposition unit 45 acquires the superimposed image in the video restored in S604. The superimposed image (for example, FIG. 8) is superimposed (S606). The video (for example, FIG. 17) on which the superimposed image is superimposed is output from the signal processing circuit group 5 to the LCD controller 18 and the LCD 19 under the control of the superimposing unit 45. On the other hand, if the superimposed image has not been acquired (NO in S605), the video restored by the video restoration unit 46 is output to the LCD controller 18 and the LCD 19 without being subjected to processing by the superposition unit 45. The LCD controller 18 outputs the video output from the signal processing circuit group 5 or the video on which the superimposed image is superimposed to the LCD 19. That is, each frame sequential display frame is sequentially output to display an image on the LCD 19 (S607).

  According to the above configuration and method, the video restoration unit 46 restores the video to the frame sequential method before the video is input to the superimposing unit 45, and the display frame is always expanded in the superimposing unit 45. It is input in the state of. Further, since the superimposed image of the recording / reproducing apparatus 100 is acquired by the superimposed image acquisition unit 48 as data separate from the video, it is not input to the video restoration unit 46 together with the video. In other words, the video is decompressed by the video restoration unit 46 before the superimposition unit 45 is output, if necessary, while no processing is performed on the superimposed image. The data is output to the superimposing unit 45 as it is.

  As a result, the superimposing unit 45 can add the superimposed image in the original state to the frame-sequential video, and as a result, the superimposed image of the recording / reproducing apparatus 100 can be displayed even in the juxtaposed video. And can be displayed without impairing visibility.

  Note that the control unit 10 may further include a configuration of the display mode control unit 42 and the superimposing unit 45. Then, only when the display mode control unit 42 determines that the input video is the juxtaposition method, the transmission control unit 47 supplies the video and the superimposed image as separate data without combining them. Thus, the transmission control unit 47 may be configured. When the display mode control unit 42 determines that the input video is a frame sequential method, transmission is performed so that the superimposing unit 45 supplies the video and the superimposed image that are combined and output. The control unit 47 may be configured.

  According to the above configuration, when the video is a frame sequential method, the composition processing on the digital television 200 side becomes unnecessary, and the processing load on the digital television 200 can be reduced.

  In the description of each embodiment described above, the operation of the video display system when the broadcast program recorded by the recording / reproducing apparatus 100 is supplied to the digital television 200 has been described. However, the video handled by the video display system of the present invention is not limited to broadcast content. For example, the technique of the present invention is also adopted when the recording / reproducing apparatus 100 reads a juxtaposed video recorded on an optical disk such as a CD-ROM / DVD / CD-R / BD and supplies it to the digital television 200. can do.

≪Modification≫
In each of the above-described embodiments, the video supply device of the present invention is the recording / playback device 100, the display device of the present invention is the digital television 200, and the recording / playback device 100 and the digital television 200 are the video of the present invention. An example of constructing a display system has been described.

  However, the present invention is not limited to the above configuration, and it is possible to construct the video display system of the present invention by adopting a device other than the above device.

  For example, a digital video camera is employed as the video supply device of the present invention, a digital television 200 or a personal computer (hereinafter referred to as a PC) is employed as the display device of the present invention, and the digital video camera and the digital television 200 (or PC) can be used to construct a video display system.

  In this case, the digital video camera as the video supply device of the present invention includes a hardware configuration for executing functions as a digital video camera and a control unit for controlling the hardware configuration. The control unit of the digital video camera functions the video processing control unit 40 of the control unit 10 shown in FIG. 1, FIG. 15, or FIG. 19 in order to realize the software function as the video supply device of the present invention. It is provided as a block. Although not shown, the control unit of the digital video camera may further include a function block for realizing the software function of the digital video camera, instead of the recording / playback control unit 30. For example, a shooting control unit for shooting a moving image and acquiring moving image data may be provided.

  According to the above configuration, the following video display system can be realized. The following video display system means that the digital video camera supplies the moving image data acquired by the shooting control unit and the superimposed image generated by the digital video camera to the digital television 200 (or PC), The digital television 200 (or PC) performs reproduction of the moving image data and superimposition of the superimposed image. At that time, the superimposed image superimposed on the moving image data is unnatural in the digital television 200 (or PC). This is a video display system that outputs moving image data and a superimposed image so as not to be expanded.

<< Modification 2 >>
Alternatively, an image receiving device constituted by a tuner is employed as the video supply device of the present invention, and a digital television 200 or a personal computer (hereinafter referred to as a PC) is employed as the display device of the present invention. A video display system can be constructed with 200 (or PC).

  In this case, the image receiving device as the video supply device of the present invention includes a hardware configuration (at least a tuner) for executing functions as the image receiving device, and a control unit that controls the hardware configuration. Then, the control unit of the image receiving device uses the functional block of the video processing control unit 40 of the control unit 10 shown in FIG. 1, FIG. 15, or FIG. 19 in order to realize the software function as the video supply device of the present invention. As prepared. Although not shown, the control unit of the image receiving apparatus may further include a functional block for realizing the software function of the image receiving apparatus instead of the recording / reproducing control unit 30. For example, an image receiving control unit for controlling a tuner so as to perform image receiving processing for selecting and receiving a video image may be provided.

  According to the above configuration, the following video display system can be realized. The following video display system means that the image receiving device supplies the image acquired by the image receiving control unit and the superimposed image generated by the image receiving device to the digital television 200 (or PC). (Or PC) executes reproduction of the video and superimposition of the superimposed image. At that time, the digital television 200 (or PC) outputs the superimposed image superimposed on the video without being unnaturally expanded. It is a video display system.

  Furthermore, the superimposed image generated in the image receiving device may represent information related to a video on which a tuner of the image receiving device selects a video and receives the received image. In this case, the superimposed image generation unit 43 included in the video processing control unit 40 of the image receiving device generates a superimposed image corresponding to the video on which the image receiving device is executing the image receiving process.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  Finally, each block of the recording / reproducing apparatus 100 or the digital television 200, in particular, each unit of the video processing control unit 40 and the video processing control unit 40 may be configured by hardware logic, and uses a CPU as follows. It may be realized by software.

  That is, the recording / reproducing apparatus 100 (or the digital television 200) develops a central processing unit (CPU) that executes instructions of a control program that implements each function, a read only memory (ROM) that stores the program, and the program. A RAM (random access memory), a storage device (recording medium) such as a memory for storing the program and various data, and the like are provided. The object of the present invention is to enable the computer to read the program code (execution format program, intermediate code program, source program) of the control program of the recording / reproducing apparatus 100 (or digital television 200), which is software that realizes the above-described functions. This can also be achieved by supplying the recording medium recorded on the recording / reproducing apparatus 100 (or digital television 200) to the computer (or CPU or MPU) reading out and executing the program code recorded on the recording medium. It is.

  Examples of the recording medium include a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R / BD. A disk system including an IC card (including a memory card) / optical card or a semiconductor memory system such as a mask ROM / EPROM / EEPROM / flash ROM can be used.

  The recording / reproducing apparatus 100 (or the digital television 200) may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication. A net or the like is available. Also, the transmission medium constituting the communication network is not particularly limited. For example, even in the case of wired such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL line, etc., infrared rays such as IrDA and remote control, Bluetooth ( (Registered trademark), 802.11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, and the like can also be used. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  The technology of the present invention is suitably used for a video supply device that supplies a juxtaposed video and a superimposed image generated by the device itself to an external device (such as a display device) for display. Examples of the video supply device include, but are not limited to, a DVD (Digital Versatile Disc) recorder / player, an HDD (Hard Disc drive) recorder / player, a BD (Blu-ray Disc) recorder / player, a digital video camera, a digital Various reproducing devices or recording / reproducing devices such as a camera and a personal computer (PC), an image receiving device, an imaging device, a video processing device, and the like are included.

DESCRIPTION OF SYMBOLS 1 Tuner 2 Communication interface 3 Infrared light-receiving part 4 External apparatus interface 5 Signal processing circuit group 6 Memory | storage part 7 Optical disk (readable recording medium)
8 optical head 9 optical pickup 10 control unit 11 recording / reproducing circuit group 12 pickup driving circuit 13 laser driving circuit 14 reproducing circuit 15 video processing circuit 16 superimposed image generation circuit 17 audio processing circuit 18 LCD controller 19 LCD
20 control unit 21 speaker 22 superposition processing circuit 30 recording / playback control unit 31 playback control unit 32 recording control unit 40 video processing control unit 41 video acquisition unit 42 display mode control unit 43 superimposed image generation unit (superimposed image generation unit)
44 Image compression unit (compression means)
45 Superimposing part (superimposing means)
46 Video restoration part (restoration means)
47 Transmission control unit 48 Superimposed image acquisition unit 60 HD drive 61 ROM
62 RAM
63 BD drive 70 Left-eye display frame 70 ′ Expanded left-eye display frame 71 Right-eye display frame 71 ′ Expanded right-eye display frame 72 Superimposed image 73 Compressed superimposed image 74 3D video 75 Restored video 76 3D video 77 3D video 100 Recording / playback device (video supply device)
200 Digital TV (display device)

In the video supply device, the video is a video in which two display frames output from the display device are compressed in half in a predetermined direction and juxtaposed in each of the frames constituting the video. , the superimposition means is characterized by superimposing on the display frame is stretched to twice the predetermined direction, the superimposed image at the same position as the superimposed position by said restoring means.

Claims (23)

A video supply device for supplying video to a display device,
The video to be supplied to the display device is a video composed of a juxtaposition method in which a plurality of display frames output from the display device are compressed in a predetermined direction and juxtaposed in each of the frames constituting the video. In case,
Superimposed image generating means for generating a superimposed image to be superimposed on the video;
Compression means for compressing the superimposed image generated by the superimposed image generation means in the same direction and the same compression ratio as the display frame;
Superimposing means for superimposing the superimposed image compressed by the compression means on at least one compressed display frame included in the frame at the same position as the superimposed position on the video. A video supply device characterized by the above. The video is a video in which two display frames output from the display device are compressed in half in a predetermined direction and juxtaposed in each of the frames constituting the video,
2. The video supply apparatus according to claim 1, wherein the compression unit compresses the superimposed image in half in the predetermined direction. The video is a video in which two display frames output from the display device are compressed in half in the horizontal direction and juxtaposed in each of the frames constituting the video,
3. The video supply apparatus according to claim 2, wherein the compression unit compresses the superimposed image by a half in a horizontal direction. The video is a video in which two display frames output from the display device are compressed in half in the vertical direction and juxtaposed in each of the frames constituting the video,
3. The video supply apparatus according to claim 2, wherein the compression unit compresses the superimposed image by half in the vertical direction.   The video supply according to any one of claims 1 to 4, wherein the superimposing unit superimposes the superimposed image compressed by the compression unit on all display frames included in the frame. apparatus. A video supply device for supplying video to a display device,
The video to be supplied to the display device is a video composed of a juxtaposition method in which a plurality of display frames output from the display device are compressed in a predetermined direction and juxtaposed in each of the frames constituting the video. In case,
Superimposed image generating means for generating a superimposed image to be superimposed on the video;
Decompression means that decompresses each compressed display frame and restores the video by connecting the decompressed display frames; and
A video comprising: a superimposing unit that superimposes the superimposed image generated by the superimposed image generating unit on the same position as the superimposed position on the video on the display frame expanded by the restoring unit. Feeding device. The video is a video in which two display frames output from the display device are compressed in half in a predetermined direction and juxtaposed in each of the frames constituting the video,
The video supply according to claim 6, wherein the superimposing unit superimposes the superimposed image on the same position as the superimposing position on the display frame that has been doubled in the predetermined direction by the restoring unit. apparatus.   The video is a stereoscopic video, and the two display frames juxtaposed on the video are a display frame for the right eye and a display frame for the left eye. 8. The video supply device according to claim 1. A video supply device for supplying video to a display device,
The video to be supplied to the display device is a video composed of a juxtaposition method in which a plurality of display frames output from the display device are compressed in a predetermined direction and juxtaposed in each of the frames constituting the video. In case,
Superimposed image generating means for generating a superimposed image to be superimposed on the video;
A video supply apparatus comprising: a transmission unit configured to transmit the video configured by the juxtaposition method to the display device and to transmit the superimposed image to the display device. The superimposed image represents a process execution state when the video supply apparatus executes a process according to a user instruction input,
10. The superimposed image generation unit according to claim 1, wherein when the video supply device accepts a user instruction input, the superimposed image generation unit generates a superimposed image corresponding to the instruction content. Picture supply device. The superimposed image represents information related to a video for which the video supply device is executing a playback process for playing back the video,
11. The video supply device according to claim 1, wherein the superimposed image generation unit generates a superimposed image corresponding to a video for which the video supply device is executing a reproduction process. .   The video supply device according to claim 10, wherein the superimposed image represents a process execution state when the video supply device executes a recording process for recording a video in response to an instruction input by a user. . The superimposed image represents information related to a video for which the video supply device is performing a recording process for recording the video,
13. The video supply according to claim 1, wherein the superimposed image generation unit generates a superimposed image corresponding to a video for which the video supply device is executing a recording process. apparatus. The superimposed image represents information related to a video in which the video supply device executes an image receiving process for selecting and receiving the video,
The video supply device according to any one of claims 1 to 10, wherein the superimposed image generation unit generates a superimposed image corresponding to a video on which the video supply device is executing an image receiving process. . The video composed by the above juxtaposition method
The video supply device according to any one of claims 1 to 11, wherein the video supply device is a video read from a recording medium readable by the video supply device. The video composed by the above juxtaposition method
14. The video according to claim 1, wherein the video is read from a recording medium readable by the video supply device or recorded in the video supply device. The video supply device described in 1. The video composed by the above juxtaposition method
The video supply device according to any one of claims 1 to 10 and 14, wherein the video supply device is a video received via a broadcast wave.   16. The video supply apparatus according to claim 1, wherein the video supply apparatus is a reproduction apparatus that reproduces an image.   The video supply device according to any one of claims 1 to 10, 12, 13, and 16, wherein the video supply device is a recording / reproducing device that records or reproduces a video.   18. The video supply apparatus according to claim 1, wherein the video supply apparatus is an image receiving apparatus that selects and receives an image. A video supply method for supplying video to a display device,
The video to be supplied to the display device is a video composed of a juxtaposition method in which a plurality of display frames output from the display device are compressed in a predetermined direction and juxtaposed in each of the frames constituting the video. In case,
A superimposed image generating step for generating a superimposed image to be superimposed on the video;
A compression step of compressing the superimposed image generated in the superimposed image generation step in the same direction and the same compression ratio as the display frame;
Including a superimposition step of superimposing the superimposed image compressed in the compression step on the at least one compressed display frame included in the frame at the same position as the superposition position on the video. A featured video supply method. A video supply method for supplying video to a display device,
The video to be supplied to the display device is a video composed of a juxtaposition method in which a plurality of display frames output from the display device are compressed in a predetermined direction and juxtaposed in each of the frames constituting the video. In case,
A superimposed image generating step for generating a superimposed image to be superimposed on the video;
A decompression step of decompressing each compressed display frame and restoring the video by connecting the decompressed display frames;
And a superimposition step of superimposing the superimposed image generated in the superimposed image generation step on the same position as the superimposed position on the video on the display frame expanded in the restoration step. Supply method. A video supply method for supplying video to a display device,
The video to be supplied to the display device is a video composed of a juxtaposition method in which a plurality of display frames output from the display device are compressed in a predetermined direction and juxtaposed in each of the frames constituting the video. In case,
A superimposed image generating step for generating a superimposed image to be superimposed on the video;
A video supply method comprising: transmitting a video constituted by the juxtaposition method to the display device, and transmitting the superimposed image to the display device.

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