JP2001157176A - Video-reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a video-reproducing device, with which the position of video being reproduced in the full length of a video stream can be comprehended exactly. SOLUTION: A storage device 12 stores the video stream and the managing information of the video stream. An image-processing part 11 reads image data out of the storage device 12 and plural reduced images, which contain reproduced images, are generated by a reduced image generating part 103. A superimposing imaged, with which a slider showing the full length and a marker located at the position of the reproduced image on the slider are superimposed on these reduced images, is generated by a superimposing screen generating part 104. The superimposing image and the reproduced image are composited by an image compositing part 105. The image-processing part 11 and the storage device 12 are managed by a control part 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video reproducing apparatus, and more particularly to a video reproducing apparatus for displaying a plurality of images before and after an image being reproduced on a same screen so as to easily find a target image. Related to the device.

[0002]

2. Description of the Related Art Video tape recorders (VTRs) and CDs
In a video playback device that reads an image stored in a video storage medium such as a ROM, displays the image on a display, and plays the image, if the target scene to be played is located in the middle of the storage area, conventionally, fast forward playback or fast reverse playback is performed. Then, since the image moves fast, it is difficult to predict the scene at the next moment unless the scene transition is stored. For this reason, when it is desired to search for a target scene, it is necessary to perform fast forward and fast rewind at short intervals many times.

[0003] Therefore, an image display method capable of easily grasping the entire flow of a moving image and performing search and editing has been proposed.
It is proposed in Japanese Patent Application Laid-Open No. Hei 6-110943. Still images based on reduced image data obtained by sampling moving image data at equal intervals and a plurality of frames are filed into one video group, and a video index is provided at the beginning of each video group as a two-dimensional image. Are simultaneously displayed on one screen so that an arbitrary frame can be designated by a cursor.

Further, in the video providing system disclosed in Japanese Patent Application Laid-Open No. H11-127420, a band-like operation area called a slider is set for an image before and after an image being reproduced, and a “knob” in the area is moved with a mouse cursor. Thus, the reproduced image can be updated according to the movement amount. Through the processing described above, a target image can be easily searched for from the images.

[0005]

However, according to the conventional video reproducing apparatus, Japanese Unexamined Patent Publication No. Hei 6-110943 discloses that a plurality of still images are obtained based on reduced image data obtained by sampling moving image data at equal intervals. Since the image is displayed in several stages, it is not possible to accurately know the position of the video stream indicated by the cursor on the monitor along the entire length of the video stream. Can not figure out. Further, in Japanese Patent Application Laid-Open No. H11-127420, an image to be displayed is determined at a position of a knob that moves on a slider, and the image is displayed at a resolution corresponding to a still time of the knob at that position. However, there is an inconvenience that the number of searches until the start of the video is searched increases.

Accordingly, it is an object of the present invention to provide a video reproducing apparatus capable of accurately grasping the position of a reproduced video at the entire length of a video stream.

Another object of the present invention is to provide a video reproducing apparatus capable of easily grasping the entire story flow of a video stream.

It is another object of the present invention to provide a video reproducing apparatus capable of locating a target video with a small number of searches.

[0009]

In order to achieve the above object, the present invention provides a storage means for storing a video stream,
A video signal for displaying a predetermined video in the video stream read from the storage unit as a reproduced image, and displaying a plurality of videos in the video stream on a display screen as a plurality of reduced images arranged in a line. An image processing unit for generating, a slider corresponding to the entire length of the video stream in parallel with the plurality of reduced images arranged in a line, and controlling the image processing unit to generate the video signal; and the slider And causing the image processing unit to generate a video signal for specifying a predetermined position, selecting a reduced image corresponding to the position from the plurality of reduced images, and displaying a marker to be displayed as the reproduced image on the display screen. There is provided a video playback device comprising control means.

According to this configuration, a predetermined video in the video stream read from the storage means and displayed on the display device and a plurality of videos in the video stream including the scene are arranged in a line. The reduced image is simultaneously synthesized and displayed on the same display screen as a display image.
On this display image, a slider provided with a marker indicating the position of the main screen is displayed in parallel with the plurality of reduced images. Therefore, the flow of the video stream can be easily grasped, and the target scene can be moved to the reproduction position of the target scene quickly and displayed according to the movement of the marker, so that cueing and the like can be performed accurately and quickly. .

[0011]

Embodiments of the present invention will be described below with reference to the drawings. [First Embodiment] FIG. 1 shows a video reproducing apparatus according to the present invention. The video reproducing apparatus 10 includes a video processing unit 11, a storage device 12 and a control unit 13 connected to the video processing unit 11, and a remote control light receiving unit 14 connected to the control unit 13. The image processing unit 11 is connected to a receiver 16 such as a CRT or a liquid crystal display, and displays an image. The remote control light receiving unit 14 is irradiated with a remote control signal by infrared rays from a remote controller (hereinafter, referred to as a remote controller) 17. The control unit 13 controls each unit of the video reproduction device 10 based on the signal received by the remote control light receiving unit 14.

The video processing unit 11 decodes a digital video stream read from the storage device 12 and converts it into a video signal 101, a reduced image generation unit 103 for generating a reduced image, a reproduced image signal serving as a reproduced video 107
Screen for superimposition (such as a reduced image described later,
(Hereinafter referred to as a superimposed screen)
4. an image synthesizing unit 105 for synthesizing a reproduced image signal 107 from the decoder unit 101 (a video based on this signal is referred to as a reproduced video) and a superimposed screen from the superimposed screen generation unit 104;
A playback information detection unit configured to acquire playback information such as a total length and a playback position of the video stream from management information of the video stream recorded in the storage device and time information in the video stream being played back; I have.

FIG. 2 shows the image content of the video output from the image processing section 11 displayed on the receiver 16. In the figure, 20 is a display screen, 21 is a reproduced video (main screen) displayed so as to occupy most of the display screen 20, and 22a to 22j are a plurality of horizontally long and continuously displayed below the reproduced video 21. 23, a bar-shaped slider displayed below the reduced images 22a to 22j as a display showing the entire length of the video stream, and 24 represents the position of the main screen of the video stream being reproduced. Marker.

FIG. 3 shows details of the remote controller 17. The remote controller 17 includes a power button 31 for turning on / off the power of the video playback apparatus 10, a stop button 32 for stopping playback, a pause button 33 for temporarily stopping playback of an image, a playback button 34 for starting playback, Return button 35, fast forward button 36, reduced images 22a to 22j, and slider 23
, A function button 37 for turning on / off the display, a rear jump button 38 for moving the marker 24 on the slider 23 to the rear, and a front jump button 39 for moving the marker 24 to the front.

FIG. 4 shows processing in the video reproducing apparatus of FIG. In the figure, A1 to A16 represent steps. Hereinafter, the operation of the present invention will be described with reference to FIG. 4 and FIGS. First, when the function button 37 in FIG. 3 is pressed, infrared light from the remote controller 17 is received by the remote controller light receiving unit 14, and a signal subjected to photoelectric conversion is output. The control unit 13
A predetermined instruction corresponding to a signal from the remote control light receiving unit 14 is output to the image processing unit 11. In the image processing unit 11, the reproduction information detection unit 106 detects the total length T of the video stream based on the management information of the video stream from the decoder unit 101 (step A1). Next, the total length T of the video stream is divided into N equal parts (N
Are natural numbers, here N = 10), and the reduced images 22a to
The interval (T / N) of the frame 22j is determined (step A2). Next, T /
The head frame of each section equally divided at N intervals is read from the storage device 12 (step A3). The image decoded by the decoder unit 102 is output to a reduced image generation unit 103
(Step A4). Next, the superimposed screen generation unit 104 creates N (here, 10) reduced images as a superimposed screen so as to be the reduced images 22a to 22j in FIG. 2 (step A5). Then, the reduced image 22
Until the writing of a to 22j on the playback screen is completed, the processing of steps A3 to A5 is repeatedly executed (step A6).

The reduced image 22 is generated by the superimposed screen generation unit 104.
When the process of putting a to 22j into the superimposed screen is completed, the superimposed screen generation unit 104 further arranges the slider 23 and the marker 24 below the reduced images 22a to 22j (step A7). The marker 24 is arranged at a position corresponding to the current reproduction position in the reduced images 22a to 22j based on time information (detected by the reproduction information detection unit 106) in the video stream being reproduced (step A).
7). Next, the image synthesizing unit 105 controls the decoder unit 10.
The reproduced video 21 from 1 and the superimposed screen from the superimposed screen generator 104 are synthesized, and the synthesized image is output to the receiver 16 through the video output terminal 15 (step A8). Next, the stop button 32 or the function button 37
Is pressed and the display of the composite screen is not finished (step A9), and the backward jump button 38
Neither the forward jump button 39 is pressed (step A1).
0), if the reproduction is continued (step A1)
1) The position of the marker 24 is updated to the reproduction position (steps A7 and A8).

When the backward jump button 38 is pressed, the marker 24 moves to a position before the time corresponding to the current position and corresponding to the time at which the closest reduced image is being created. When the forward jump button 39 is pressed, the marker 24 moves to a position corresponding to the time at which the closest reduced image is being created after the time corresponding to the current position (step A12). Next, the reproduction screen 21 and the reduced images 22a to 22j are combined (step A13). Until the jump button is released
The processing of step A12 and step A13 is repeated (step A15). When the pressing of the jump button is released, the reproduction position of the video stream moves to the frame at the position of the reduced image indicated by the marker 24, and the reproduction is continued (return to step A7). Then, when the image combination (superimposed display) is completed, the display of the composite image is completed (step A16).

According to the first embodiment, the entire video stream being reproduced in the reproduced video is divided at equal intervals, and a reduced image of the first frame of each section is displayed. You will be able to grasp changes in the scene. In addition, the current playback position in a program or work can be accurately and easily grasped by the slider and the marker.
Further, this advantage makes it possible to accurately and easily locate a target scene while reproducing.

[Second Embodiment] Next, a video playback apparatus according to a second embodiment of the present invention will be described. FIG.
Shows a second embodiment of the video reproducing apparatus of the present invention.
FIG. 6 shows the contents of a display screen according to the second embodiment. Note that the remote controller 17 also has the configuration shown in FIG. 3 in the present embodiment. The configuration of the video playback device 50 according to the second embodiment is different from that of the first embodiment in FIG. 1 in that a superimposed screen of a video stream different from the superimposed screen generator 104 instead of the superimposed screen generator 104 is used. Is provided, and a temporary storage device 502 connected to the superimposed screen generation unit 501 is provided. The other configuration is as shown in FIG.

In the first embodiment, the reduced images 22a to 22j are displayed by dividing the total length T of the video stream being reproduced by the number N of reduced images, and the slider 23
Corresponded. On the other hand, in the second embodiment, the total length T of the video stream to be reproduced is divided at a constant time interval t, and the reduced image of the first frame of each section is divided into T /
t are created, and N (N is a natural number, T / t
.Gtoreq.N) are arranged and displayed in a band as shown in FIG. The superimposition screen generation unit 501 temporarily stores the created reduced image 61 in the temporary storage device 502 every time it creates one.

In FIG. 6, the same components as those shown in FIG. 2 are denoted by the same reference numerals, and the duplicate description will be omitted. Here, the slider 64 is N × t (N ×
t ≦ T), and the whole of the reduced images 61a to 61j is shifted to the right (at the time of reproduction and fast forward) as the reproduction time elapses.
Or scroll to the left (when rewinding). Therefore, to indicate that there is a video stream before or after the displayed reduced images 61a to 61j, a triangular marker 6
2 is provided before the reduced image 61a, and a triangular marker 63 is also provided after the reduced image 61j. When the markers 62 and 63 are not displayed, it can be understood that the reproduction has ended with the currently displayed reduced image 61a or 61j.

FIG. 7 shows the processing of the second embodiment. In the figure, B1 to B23 represent steps. The operation of the second embodiment will be described with reference to FIG. 3 and FIGS. First, when the function button 37 of the remote controller 17 is pressed, the control unit 13 outputs an image synthesis instruction to the image processing unit 51 according to the signal received by the remote control light receiving unit 14. The reproduction information detection unit 106 detects the total length T of the video stream based on the management information of the video stream (Step B1). Next, the total length T of the video stream is divided at regular time intervals t, and the reduced images 61a to 61
The number [T / t] (T / t ≧ N) for generating j is determined (step B2). Next, the first frame of the section divided by the interval t is read from the storage device 12 and decoded by the decoder unit 102 (step B).
3). The decoded image is reduced by the reduced image generation unit 103 (Step B4). This reduced image is
The superimposed screen generation unit 501 stores the data in the temporary storage device 502 (step B5). Until the creation of T / t reduced images is completed, the processing of steps B3 to B5 is repeatedly executed (step B6).

When the creation of all reduced images is completed by the superimposed screen generator 501, the reduced images 61a to 61j existing in the area including the current playback position are stored in the temporary storage device 50.
7 and a superimposed screen is created (step B).
7). Then, the reduced images 61a to 61 arranged in a belt shape
If there is a video stream connected before or after j, markers 62 and 63 indicating the presence are displayed (step B8). Next, the slider 64 and the marker 24 are arranged on the superimposed screen (step B9). Marker 24
Is located at a position corresponding to the current playback position. Next, the superimposed screen is superimposed on the reproduced video 21 by the image synthesizing unit 105, and the synthesized image is output to the receiver 16 through the video output terminal 15 (step B10).

Next, before the stop button 32 or the function button 37 of the remote controller 17 is pressed and the superimposed display ends (step B11), the backward jump button 38 or the forward jump button 39 is not pressed (step B12).
When the reproduction is continued (step B13), if there is no stream data in the direction of the elapsed time of the reproduction (step B14), the marker 24 on the slider 64 is updated (moved in the direction of the elapsed time) (step B15). ).
When the stream data exists, the reduced images 61a to 61j scroll right or left by the elapsed time, and the data of the reduced image of the corresponding frame is read from the temporary storage device 502 to the newly displayed area, and is superimposed. It is written on the screen (step B16). Next, the reduced images 61a-
If there is a video stream before or after the reduced images 61a to 61j due to the scrolling of 61j, the display state of the markers 65 and 66 is updated according to the presence or absence (Step B17). After the processing in step B15 or B17 ends, the processing returns to step B10, and the subsequent processing is repeatedly executed.

In step B12, when the backward jump button 38 is pressed, the marker 24 moves to a position corresponding to the time at which the reduced image closest to the current position is being created before the time corresponding to the current position of the marker 24. I do.
When the forward jump button 39 is pressed, the marker 24 moves to the position corresponding to the time at which the reduced image closest to the current position is created after the time corresponding to the current position (step B18). . Next, scrolling of the reduced images 61a to 61j arranged in a band (Step B19) and updating of the display state of the markers 65 and 66 (Step B20) are performed, and the reproduction screen and the superimposed screen are combined (Step B21). . Then, the processing of steps B18 to B21 is repeated until the pressed jump button is released (step B22). When the jump button is released, the reproduction position of the video stream is moved to the frame at the position of the reduced image indicated by the marker, and the reproduction is continued. Thereafter, the process returns to step B10. Then, when it is determined in step B11 that the condition for terminating the superimposed display is satisfied, the screen combining process ends (step B24).

As described above, in the second embodiment, since the reduced images are displayed at shorter intervals, the cue of the target frame can be more accurately found than in the first embodiment. Will be possible.

[Third Embodiment] FIG. 8 shows a display screen in a third embodiment. FIG. 9 shows a process according to the third embodiment. In FIG. 9, C1 to C27 represent steps. This embodiment is characterized in that a time bar 81 and a mark 82 are added to the screen of the second embodiment shown in FIG. The time bar 81 indicates the total length of the video stream, and the mark 82 indicates the time range of the reduced images 61a to 61j arranged in a band.

The operation of the third embodiment will be described with reference to FIGS. 3, 5, 8, and 9. First, when the function button 37 of the remote controller 17 is pressed, the transmitted information is received by the remote controller light receiving unit 54. The control unit 13 outputs an instruction for reproduction to the image processing unit 51 according to a signal from the remote control light receiving unit 14. The reproduction information detection unit 106 detects the total length T of the video stream being reproduced from the management information of the video stream (step C1). Next, the video stream T is divided at a fixed time interval t, and the number T / t for creating reduced images is determined. (Step C2). Next, the head frame of the section divided at the t interval is read from the storage device 12 and decoded by the decoder unit 102 (step C3). The decoded image is reduced by the reduced image generation unit 103 (Step C4). The reduced image is stored in the temporary storage device 502 by the superimposed screen generation unit 501 (Step C5). Until the creation of T / t reduced images is completed, the processing of steps C3 to C5 is repeatedly executed (step C6).

When the creation of all reduced images is completed, the superimposed screen generation unit 501 converts the reduced images stored in the temporary storage device 502 into the superimposed screen so that the reduced images 61a to 61j include the current playback position. (Step C7). When a video stream exists before or after the reduced images 61a to 61j, the marker 62 or 63 is displayed (Step C8). Next, the slider 64 is arranged on the superimposed screen (step C9), and the marker 24, the time bar 81 (representing the entire length of the video stream), and the mark 82 (reduced images 61a to 61c) are provided at positions corresponding to the current playback position. 61j) is arranged on the superimposed screen (step C10). Next, the decoder unit 10
1 is combined with the superimposed screen from the superimposed screen generation unit 501 by the image synthesizing unit 105, and is output to the receiver 16 through the video output 15 (step C1).
1).

Next, before the stop button 32 or the function button 37 of the remote controller 17 is pressed and the superimposed display ends (step C12), the backward jump button 38 or the forward jump button 39 is not pressed (step C13), and the reproduction is performed. When the position has moved (step C14) and there is no video stream in the direction of the elapsed time (step C15)
, The position of the marker 24 on the slider 64 is updated (step C16). When a video stream exists, the reduced images 61a to 61j are scrolled right or left by the elapsed time, and data of the reduced image of the corresponding frame is temporarily stored in the newly displayed area.
02 and written on the superimposed screen (step C17). Next, since the reduced image is scrolled, the marker 62 or 63 is adjusted according to the presence or absence of the video stream before the left end or after the right end of the reduced images 61a to 61j.
Is updated (step C18), and the time bar 8
1 is updated (step C1).
9).

When the processing in step C16 or C19 is completed, the processing returns to step C11. When it is determined in step C13 that the jump button (38 or 39) has been pressed, the marker 24 moves to the position of the frame closest to the current display frame (step C20). Further, scrolling of the reduced images 61a to 61j (Step C21), updating of the display state of the markers 62 and 63 (Step C22), and updating of the mark 82 on the time bar 81 are performed (Step C23), and are superimposed on the reproduced image. The screens are combined (step C24). Steps C20 to C20 until the pressed jump button (38 or 39) is released.
The process of C24 is repeated (Step C25). When the jump button (38 or 39) is released, the reproduction position of the video stream moves to the frame at the position of the reduced image indicated by the marker 24 and the reproduction is continued, and the process returns to step C11. When the superimposed display end condition in step C12 is satisfied, the screen composition ends (step C12).
27). As described above, according to the third embodiment, as compared with the second embodiment, which position in the entire video stream the position where the image is reproduced or the position of the frame to which the image jumps is located. Can be easily grasped.

[Fourth Embodiment] FIG. 10 shows a fourth embodiment. Image processing unit 1 according to fourth embodiment
001 includes a decoder unit 1002, a reduced image reading unit 1003, an encoder unit 1004, and a reduced image generation unit 1005, in addition to the superimposed screen generation unit 104 and the image synthesis unit 105 shown in FIG. The decoder unit 1002 is provided between the storage device 12 and the image synthesis unit 105, provided between the reproduction information detection unit 106 and the storage device 12, and provided between the storage device 12 and the superimposed screen generation unit 104, 1004 is a video input terminal 100
Storage device 1 by encoding the video signal 1007 from
Stored in 2.

In the first embodiment, when the reduced images 22a to 22j shown in FIG. 2 are created, they are created by the decoder unit 102 and the reduced image generation unit 103 of the video reproducing apparatus in FIG. On the other hand, in the present embodiment, when recording (= recording) of a video stream in the storage device 12 is completed, a reduced image is created and recorded in the storage device 12. Then, when creating the reduced images 22a to 22j, the reduced images are read from the reduced image reading unit 1003.

FIG. 11 shows a process at the time of recording in the fourth embodiment. In the figure, D1 to D9 represent steps. FIG. 12 shows a remote controller used in the fourth embodiment. The remote controller 1200 shown in FIG. 12 is different from the remote controller 17 shown in FIG.
A recording button 1201 is added on the right side of. When the recording button 1201 is pressed, a recording operation starts. Hereinafter, the recording operation will be described in detail with reference to FIGS.

When not in the recording state, the remote controller 1200
Is pressed, the remote control light-receiving unit 1
A signal is transmitted toward 4. The remote control light receiving unit 14 that has received the signal from the remote control 1200 sends the signal to the control unit 13. The control unit 13 outputs a recording mode instruction to the image processing unit 1001 based on a signal from the remote control light receiving unit 14.

A video signal 1007 input from a video input terminal 1006 for recording is input to an encoder unit 1004.
Is encoded into a video stream by the storage device 1
2 is recorded (recorded) (step D1). This recording operation is continued until the stop button 32 of the remote controller 1200 is pressed (step D2). The recording operation is stopped by pressing the stop button 32 (step D).
3). If it is determined that the recording is stopped, the video stream is read from the storage device 12 by the decoder 1002, and the total length T is detected by the reproduction information detection unit 106 (step D).
4). Next, the total length T of the video stream is divided into N equal parts (N is a natural number) by the superimposed screen generation unit 104, and the interval between frames forming reduced images is determined (step D5). Next, the first frame of the video stream in the section equally divided at T / N intervals from the storage device 12 is stored in the decoder unit 1002.
, And decoded by the decoder unit 1002 (step D6). The decoded image is reduced by the reduced image generation unit 1005 (step D7), and the reduced image is stored in the storage device 12 (step D).
8). Until the saving of the reduced images of N frames is completed, the processing of steps D6 to D8 is repeatedly executed (step D9).

FIG. 13 shows a process at the time of reproduction according to the fourth embodiment. In the figure, E2 to E15 represent steps.
The processing in FIG. 13 differs from the processing in FIG. 4 in that the reduced screen is created and stored in steps D7 and D8 in FIG. As a result, the process of “creating a reduced screen” performed in step A4 in FIG. 4 becomes unnecessary, and only the reading from the storage device 12 is required. The reproduction process will be described with reference to FIGS. 2, 10, and 12, in addition to FIG.

Referring to FIG. 13, when the function button 37 of the remote controller 1200 is pressed while the reproducing function is operating, the control unit 13 instructs the image processing unit 1001 to perform image synthesis according to the signal received by the remote control light receiving unit 14. Output instructions. The reproduction information detection unit 106 detects the total length T of the video stream based on the management information of the video stream (Step E1). Next, the total length T of the video stream is divided into N equal parts (N is a natural number), and the frame interval for displaying the reduced image is determined (step E2). Next, the reduced image reading unit 1003 reads the reduced image of the first frame of the video stream in the section equally divided at T / N intervals from the storage device 12 (step E3). Superimposed screen generator 1
In step 04, the reduced image is written on the superimposed screen so as to be reduced images 22a to 22j (step E4). Until the writing of the reduced images of N frames on the superimposed screen is completed, the processing of steps E3 and E4 is repeatedly executed (step E5). When the writing of the reduced images 22a to 22j is completed, the superimposed screen generation unit 104
And the marker 24 are arranged in the superimposed screen (step E
6). Next, the reproduced image and the superimposed screen are synthesized by the image synthesizing unit 105, and the video signal is output to the receiver 16 through the video output terminal 15 (step E7). Next, by the time the stop button 32 or the function button 37 is pressed and the display of the composite screen ends (step E8), the reproduction is performed without the rearward jump button 1308 or the forward jump button 1309 being pressed (step E9). When continuing (step E10), the position of the marker 24 is updated to the reproduction position (steps E6 and E7).

When the backward jump button 38 is pressed, the marker 24 moves to a position corresponding to the time at which the reduced image closest to the current position is created before the time corresponding to the current position. When the forward jump button 39 is pressed, the marker 24 moves to a position corresponding to the time at which the reduced image closest to the current position is created after the time corresponding to the current position (step E11). Next, the playback screen and the superimposed screen are combined by the image combining unit 105 (step E12). Then, the processing of steps E11 and E12 is repeated until the pressed jump button is released (step E13). When it is determined that the jump button is off, the reproduction position of the video stream moves to the frame at the position of the reduced image indicated by the marker, and then returns to step E6 to continue reproduction. Finally, when the superimposed display (display of the composite screen) ends, the screen synthesis ends (step E15). According to the fourth embodiment, compared to the first embodiment, by using the reduced image prepared at the recording stage before reproducing the video stream, a reduced image can be created at the time of reproduction, There is no need to prepare a decoder for creating a reduced image.

[Fifth Embodiment] FIG. 14 shows a process at the time of recording according to a fifth embodiment. In the figure, F1 to F9 represent steps. The difference of this recording process from the fourth embodiment is that a reduced screen is created with the equally dividing interval being [T / t]. 14, 10, and 12
The processing at the time of recording according to the fifth embodiment will be described below with reference to FIG. When the recording function is not operating, the remote control 12
When the recording button 1201 of “00” is pressed, the control unit 13 outputs a recording mode instruction to the image processing unit 1001 according to the signal received by the remote control light receiving unit 14. The video signal 1007 input from the video input terminal 1006 is encoded into a video stream by the encoder unit 1004 and stored in the storage device 12 (step F).
1). Recording is continued until the stop button 32 of the remote control is pressed (step F2), and when the stop button 32 is pressed, the recording is stopped (step F3).

Next, the recorded video stream is read from the storage device 12 by the decoder 1002. The total length T of the read video stream is determined by the reproduction information detection unit 10.
It is detected at 15 (step F4). Next, the video stream is divided at a fixed time interval t, and the number [T / t] for creating a reduced image is determined. (Step F5). Next, the decoder unit 1002 reads from the storage device 12 the head frame of the section divided at intervals of t, and decodes it (step F6). The decoded image is reduced by the reduced image generation unit 1016 (step F7) and stored in the storage device 1002 (step F8). [T /
Until the creation of t] reduced images is completed, the processing of steps F6 to F8 is repeatedly executed (step F9).

FIG. 15 shows a process at the time of reproduction according to the fifth embodiment. In the figure, G1 to G18 represent steps.
The processing at the time of reproduction according to the fifth embodiment will be described below with reference to FIGS. 15, 6, 10, and 12. First, when the function button 37 of the remote controller is pressed while the reproduction function of the present apparatus is operating, the control unit 13 outputs an instruction to the image processing unit 1001 according to the signal received by the remote control light receiving unit 14. . The reproduction information detection unit 106 detects the total length T of the video stream based on the management information from the decoder unit 1002 (Step G1). Next, the superimposed screen generation unit 104 reads the reduced images stored in the storage device 12 so as to include the current playback position of the reduced images 61a to 61j, and creates a superimposed screen (Step G).
2). If a video stream exists before or after the reduced images 61a to 61j, the marker 62 or 63 is arranged in the superimposed screen (step G3). Next, the placement of the slider 64 and the placement of the marker 24 at a position corresponding to the current playback position are performed on the superimposed screen (step G4). Next, the image synthesizing unit 105 synthesizes the reproduced image from the decoder unit 1002 with the superimposed screen from the superimposed screen generation unit 104, and outputs the image signal resulting from the synthesis to the receiver 16 through the video output terminal 15. (Step G5).

Next, the stop button 32 or the function button 37
Is pressed, and before the superimposed display (display of the composite screen) ends (step G6), no jump button is pressed (step G7) and the reproduction is continued (step G7).
8) If there is no video stream data in the elapsed time direction (step G9), the marker 24 on the slider 64 is updated (step G10). On the other hand, if stream data exists, the reduced images 61a to 61
j is scrolled right or left, and the data of the reduced image of the corresponding frame is stored in the newly displayed area in the storage device 1.
2 is written to the superimposed screen (step G11). Next, by scrolling the reduced images 61a to 61j, the display state of the marker 62 or 63 is updated according to the presence or absence of the video stream before the left end or after the right end (step G12). Then, step G1
0 or after the end of step G12, the process proceeds to step G5.
And the subsequent processing is executed again.

When the backward jump button 38 is pressed (step G7), the marker 24 moves to a position corresponding to the time at which the reduced image closest to the current position is created before the time corresponding to the current position. When the forward jump button 39 is pressed (step G7), the marker 2
No. 4 moves to a position corresponding to the time at which the reduced image closest to the current position is created after the time corresponding to the current position (step G13). Also, the reduced images 61a to 61j
(Step G14), and the marker 62
Are updated (step G15), and the reproduced image and the superimposed screen are combined (step G16).
The processing of steps G13 to G16 is repeatedly executed until the pressed jump button is released (step G1).
7). When the press of the jump button is released, the reproduction position of the video stream moves to the frame at the position of the reduced image indicated by the marker 24, and the reproduction is continued (step G).
18). Thereafter, the process returns to step G5, and if the condition for ending the superimposed display is satisfied in step G6, the screen composition is ended (step G19). As mentioned above,
The fourth embodiment differs from the second embodiment in that a reduced image prepared during a recording process is used before reproducing a video stream, so that a reduced image is created during reproduction. Also, there is an advantage that it is not necessary to prepare a decoder for creating a reduced image.

[Sixth Embodiment] FIG. 16 shows a process at the time of recording according to the sixth embodiment. In the figure, H1 to H6 represent steps. The processing at the time of reproduction is the same as that of the sixth embodiment in FIG. 16, FIG. 10,
The reproduction processing according to the sixth embodiment will be described below with reference to FIGS. When the recording button 1201 of the remote control 1200 is pressed when the recording function is not operating, the control unit 13 outputs a recording mode instruction to the image processing unit 1001 according to the signal received by the remote control light receiving unit 14. The video signal 1007 input from the video input terminal 1006 is encoded into a video stream by the encoder unit 1004, and this is stored in the storage device 12 (Step H1). Next, a video stream is read at intervals of t, and is decoded by the decoder 1002 (step H2). The decoded image is reduced by the reduced image generation unit 1016 (Step H3) and stored in the storage device 12 (Step H4). Remote control 120
Steps H2 to H until the 0 stop button 32 is pressed.
4 is repeatedly executed (step H5). Then, when the stop button 32 is pressed, the recording operation is stopped (step H6). According to the sixth embodiment, since a reduced image is created during recording of a video stream as compared with the fifth embodiment, the time required to create a reduced image after recording is eliminated. There is an advantage that can be.

In FIGS. 1 and 5, a video signal can be fetched from outside similarly to FIG. The remote controllers 17 and 1200 are of the infrared type, but may be of the wired type or the radio type.

[0047]

As described above, according to the video reproducing apparatus of the present invention, the total length of the video stream read from the storage means is divided into a plurality of pieces, and a plurality of reduced images obtained by reducing the respective leading images are formed into a strip. Are combined with the playback image being played back and displayed on the same screen, and a slider indicating the total length of the video stream is displayed side by side with a plurality of reduced images, and the position of the playback image is displayed on this slider. Is arranged so that it is possible to accurately know where the video being played is located along the entire length of the video stream, and to easily understand the flow of the entire story of the video stream. Will be able to In addition, a small number of searches makes it possible to accurately and quickly locate a target video.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a first embodiment of a video playback device according to the present invention.

FIG. 2 is a screen view showing image contents of a video output from the image processing unit of FIG. 1 displayed on a receiver.

FIG. 3 is a plan view showing a detailed configuration of the remote controller of FIG. 1;

FIG. 4 is a flowchart showing a process in the video reproduction device of FIG. 1;

FIG. 5 is a block diagram showing a second embodiment of the video reproducing apparatus of the present invention.

FIG. 6 is a screen diagram showing display screen contents according to the second embodiment.

FIG. 7 is a flowchart illustrating a process according to the second embodiment.

FIG. 8 is a screen diagram showing a display screen according to the third embodiment.

FIG. 9 is a flowchart illustrating a process according to the third embodiment.

FIG. 10 is a block diagram showing a fourth embodiment of the video playback device of the present invention.

FIG. 11 is a flowchart illustrating processing during recording according to the fourth embodiment.

FIG. 12 is a plan view showing a configuration of a remote controller used in the fourth embodiment.

FIG. 13 is a flowchart showing processing during reproduction according to the fourth embodiment.

FIG. 14 is a flowchart illustrating processing during video recording according to the fifth embodiment.

FIG. 15 is a flowchart illustrating processing during reproduction according to the sixth embodiment.

FIG. 16 is a flowchart illustrating processing during video recording according to the sixth embodiment.

[Explanation of symbols]

 10, 50 video reproducing device 11, 51 video processing unit 12 storage device 13 control unit 14 remote control light receiving unit 16 receiver 17, 1200 remote control 20 display screen 21 reproduced video 22a to 22j, 61a to 61j reduced image 23, 64 slider 24, 62, 63 marker 32 stop button 34 play button 37 function button 38 backward jump button 39 forward jump button 101, 102, 1002 decoder section 103, 1005 reduced image generation section 104, 501 superimposed screen generation section 105 image synthesis section 106 reproduction information detection Unit 502 Temporary storage device 1003 Reduced image reading unit 1004 Encoder unit 1201 Record button

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5C052 AA01 AC08 CC20 5C053 FA14 FA21 FA23 FA30 HA29 HA33 HA40 JA30 KA04 KA08 KA24

Claims (11)

[Claims] 1. A storage unit for storing a video stream, a predetermined video in the video stream read from the storage unit as a reproduced image, and a plurality of videos in the video stream arranged in a line. An image processing unit that generates a video signal to be displayed on a display screen as a plurality of reduced images, and controls the image processing unit to generate the video signal, and is parallel to the plurality of reduced images arranged in a line. A slider corresponding to the entire length of the video stream, and a marker that specifies a predetermined position of the slider, selects a reduced image corresponding to the position from the plurality of reduced images, and displays the selected reduced image as the reproduced video, A video reproducing apparatus comprising: a control unit that causes the image processing unit to generate a video signal to be displayed on a display screen. 2. The method according to claim 1, wherein the plurality of reduced images are scrolled in accordance with the passage of time or the movement of the marker, and the display position of the marker is updated in accordance with the scrolling of the plurality of reduced images. The video playback device according to claim 1, wherein 3. The plurality of reduced images are obtained by dividing the total length T of the video stream into N pieces (N is a natural number) and generating each reduced image of the first frame of each section by the division. The video playback device according to claim 1, wherein 4. The plurality of reduced images are obtained by dividing the total length T of the video stream at a fixed time interval t and generating T / t reduced images. The video playback device according to claim 1, wherein 5. The plurality of reduced images, wherein a marker indicating that an image stream is present before or after the plurality of reduced images is provided on both sides of the plurality of reduced images. 5. The video reproducing device according to 4. 6. The apparatus according to claim 1, wherein the slider is provided with a bar indicating a length of the image stream and a mark indicating a range of a plurality of reduced image times arranged in a band. Video playback device. 7. The video reproducing apparatus according to claim 1, wherein said control means is connected to a receiving means for receiving a signal from a remote controller. 8. The image processing unit divides the total length T of the video stream read from the storage unit into N pieces (N is a natural number), and reduces the T / N predetermined sections to reduce the plurality of reduced sections. A reduced image generating means for generating an image; a reproduction information detecting means for detecting a total length of the video stream based on management information of the video stream; and a reproduction information detecting means for the plurality of reduced images by the reduced image generating means. A superimposed screen generating means for generating a superimposed screen in which the slider and the marker are superimposed on a predetermined position based on the detection information; and generating the synthesized image by synthesizing the superimposed screen by the superimposed screen generating means with the reproduced image. The video reproducing apparatus according to claim 1, further comprising: an image synthesizing unit. 9. The image processing unit divides the total length T of the video stream read from the storage unit at a fixed time interval t, and reduces the T / t predetermined sections to reduce the plurality of reduced images. Reduced image generation means for generating; reproduction information detection means for detecting the total length T of the video stream based on video stream management information; detection of the plurality of reduced images by the reduction image generation means by the reproduction information detection means A superimposed screen generating unit that generates a superimposed screen in which the slider and the marker are superimposed on a predetermined position based on information; and the plurality of reduced images generated by the superimposed screen generating unit are stored. A temporary storage unit from which the plurality of reduced images are read out, and a superimposed screen generated by the superimposed screen generation unit is combined with the reproduced image to generate a combined image. Video reproducing apparatus according to claim 1, wherein the image combining means, in that it comprises the. 10. An image processing unit comprising: a reproduction information detecting unit configured to detect a total length T of the video stream based on management information of the video stream; and a video stream read from the storage unit during recording or when recording is stopped. The total length T of the video stream is divided into N equal parts (N is a natural number) to generate the plurality of reduced images, store them in the storage unit, and read out the plurality of reduced images from the storage unit during reproduction. Generating means, and a superimposed screen generating means for generating a superimposed screen in which the slider and the marker are superimposed on a predetermined position on the plurality of reduced images by the reduced image generating means based on detection information by the reproduction information detecting means, Image combining means for combining the superimposed screen with the reproduced image by the superimposed screen generating means to generate a combined image, The video playback device according to claim 1. 11. An image processing unit comprising: a reproduction information detecting unit configured to detect a total length T of the video stream based on management information of the video stream; and a video stream read from the storage unit during recording or when recording is stopped. The total length T of the video stream is divided at a fixed time interval t, and the plurality of reduced images obtained by reducing the T / t predetermined sections are created and stored in the storage means. A reduced image generation unit that reads the plurality of reduced images from the storage unit; and the slider and the marker positioned at predetermined positions on the plurality of reduced images by the reduced image generation unit based on detection information by the reproduction information detection unit. A superimposed screen generating unit that generates a superimposed superimposed screen; and a superimposed screen generated by the superimposed screen generating unit is synthesized with the reproduced image to generate a synthesized image. The video reproducing apparatus according to claim 1, further comprising: an image synthesizing unit.