JPH09247596A - Image reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily recognize the contents of moving images recorded in a recording medium. SOLUTION: This device is composed of a reproducing means 3 for reading image data recorded in the recording medium 2, an instruction means 4 for instructing an interval for generating plural still images to be multi-screen displayed or the like, a control means 5 for controlling the entire device, an insertion detection means 6 for detecting the insertion of the recording medium 2 and a display working means 8 for generating and working images to be displayed at a display means 7 connected to the device. Then, when the insertion detection part 6 detects that the recording medium 2 is inserted into the image reproducing device 1, the image data recorded in the recording medium 2 are read by the reproducing means 3 and the still images for respective prescribed time intervals instructed by the instruction means 4 are generated in the display working means 8. The generated still images are multi-screen displayed at the display means 7. When an operator selects one of the multi-screen displayed still images by the instruction means 4, the image reproducing device 1 starts the reproduction of the moving images from the position of the still image.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reproducing apparatus for reproducing a moving image recorded on a recording medium and outputting it to a display means such as a monitor, and more particularly, to a moving image recorded on the recording medium. The present invention relates to an image reproducing apparatus that can easily find a desired image scene.

[0002]

2. Description of the Related Art As a conventional system for reproducing a moving image recorded on a recording medium, Japanese Patent Application No. 7-2
There is a technique disclosed in No. 30580. Japanese Patent Application No. 7-2305
In the technology disclosed in No. 80, in order to easily search for a desired moving image scene from a random access disc in which a still image and a moving image are mixedly recorded, one representative screen of this moving image is dummyed at the time of shooting the moving image. , And the dummy index data that associates this still image with the above moving image is forcibly recorded. When playing back a moving image, the index data added to the moving image is searched and the still image is played back. By doing so, it is possible to easily access a desired moving image scene and quickly reproduce it.

[0003]

However, the above-mentioned conventional technique has the following problems. That is, since one representative screen is displayed as a still image for one moving image scene, if one recorded moving image scene is for a long time, its contents can be sufficiently grasped. Therefore, the search function cannot be exerted. Also, it is not easy to reproduce a moving image from the middle of a long moving image scene. Furthermore, in the case of a moving image scene in which the shooting content changes drastically, it is difficult to understand the content from only one representative screen.

Therefore, the present invention has been made in view of the above points, and a first object of the present invention is to provide an image reproducing apparatus in which the content of a moving image can be easily grasped. Also,
A second object of the present invention is to provide an image reproducing device capable of grasping the content of a moving image based on the operator's intention. Further, a third object of the present invention is to provide an image reproducing device which can easily start reproducing a moving image even from a scene in the middle of a long moving image.

[0005]

A first image reproducing device of the present invention is an image reproducing device for reproducing a moving image recorded on a recording medium, and a still image is reproduced from the moving image at predetermined intervals. It is characterized by having a still image generating means for generating. Further, the second image reproducing apparatus of the present invention is characterized by including a still image position indicating means for indicating a position where the still image is generated from the moving image.

Further, in a third image reproducing apparatus of the present invention, in the first and second image reproducing apparatuses, the still image position selected from the generated still images based on an instruction from the operator. The reproduction of the moving image is started from.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic functional block diagram of an image reproducing apparatus according to this embodiment. FIG. 2 is a detailed functional block diagram of the image reproducing apparatus in this embodiment. FIG. 3 is an image diagram showing an arrangement of image data recorded on a recording medium. FIG. 4 is an output image diagram of the display means displaying a multi-screen. FIG. 5 is an image diagram showing an arrangement of image data recorded on a recording medium in a modified example of this embodiment.

First, the schematic structure of the image reproducing apparatus in this embodiment will be described with reference to FIG. The image reproducing device 1 of the present embodiment includes a reproducing device 3 for reading image data recorded on the recording medium 2, an instructing device 4 for instructing intervals for generating a plurality of still images to be displayed on a multi-screen, and the entire device. It mainly comprises a control means 5 for controlling, an insertion detecting means 6 for detecting insertion of the recording medium 2, and a display processing means 8 for generating and processing an image to be displayed on a display means 7 connected to this apparatus.

When the insertion detecting section 6 detects that the recording medium 2 has been inserted into the image reproducing apparatus 1, the reproducing means 3 reads out the image data recorded on the recording medium 2, and the display processing means 8 causes the instructing means. 4, still images are generated at predetermined time intervals. The plurality of generated still images are displayed on one screen of the display means 7 as a multi-screen. When the operator selects one of the still images displayed on the multi-screen by the instruction means 4, the image reproducing apparatus 1 starts reproducing the moving image from the position of the still image.

Next, the detailed configuration of the image reproducing apparatus 1 in this embodiment will be described with reference to FIG. In FIG. 2, the disk 10 corresponds to the recording medium 2 in FIG.
A disc-shaped disc capable of optically recording and reproducing moving images, such as a randomly accessible DVD (Digital Vi
deo Disc) and video CD. The moving image is recorded as digital image data on the surface of the disk.

The optical pickup 11, the signal amplification circuit 12,
The demodulation / error correction circuit 13, the system decoder 14, and the image data decoder 15 are the reproduction means 3 in FIG.
The digital image data recorded on the disc 10 is read out and the read image data is decoded into an image signal. The optical pickup 11 is a signal reading unit that optically reads image data recorded on the surface of the disk 10. The signal amplification circuit 12 amplifies the image data read by the optical pickup 11, separates a signal corresponding to a focus / tracking error of the optical pickup 11, and sends it to a servo controller described later. The demodulation / error correction circuit 13 performs demodulation / error correction processing on the image signal amplified by the signal amplification circuit 12. System decoder 14
Separates data relating to audio information and character information recorded together with the image data on the disc 10 and sends only the image data to the image data decoder 15. The image data decoder 15 performs decompression processing on the compressed image data in a predetermined format.

First selection switch (hereinafter referred to as SW) 1
6, the second selection SW17 and the third selection SW18 are shown in FIG.
These correspond to the instructing means 4 in FIG. 1 and are means for inputting an operator's instruction to the image reproducing apparatus 1. The first selection SW 16 is a multi-screen division number selection means for selecting and instructing the number of screens of a still image to be displayed on the monitor described later.
The second selection SW 17, when generating a still image from the image data relating to the moving image recorded on the disc 10,
It is a display time interval instruction means for selecting and instructing the time interval. The third selection SW 18 is a multi-screen selection unit that selects one of a plurality of still images that form a multi-screen displayed based on the operator's instruction from the first selection SW 16 and the second selection SW 17, and is, for example, It consists of input devices such as a mouse, keyboard, and joystick. These SWs are connected to the system control circuit 19.

The system control circuit 19 corresponds to the control means 5 in FIG. 1, and includes a servo controller 20, and a disc motor 22 for rotating the feed motor 21 of the optical pickup 11 and the disc 10 based on the output signal of the servo controller 20. The drive operation of the disk 10 is controlled via the driver 23 that drives the disk. It also controls image signal processing circuits such as the system decoder 14 and the image data decoder 15. Furthermore, the first to third selection SW16
The circuit related to the display processing means 8 is controlled in response to the input signals from .about.18, which will be described later in detail. By the way,
The servo controller 20 corrects the drive of the optical pickup 11 based on the focus / tracking error signal output from the signal amplification circuit 12.

A sampling circuit 24, an image memory 25,
Digital / analog converter circuit (denoted as D / AC in the figure)
26 and the video encoder 27 correspond to the display processing means 8 in FIG. 1, and these are the image data decoder 1
The image signal output from the device 5 is converted into a signal that can be displayed on the monitor 28 as the display means 7. When the system control circuit 19 instructs the sampling circuit 24 to display a still image on the monitor 28 in multi-screens, the sampling circuit 24 thins out the image signals output from the image data decoder 15 to a resolution optimum for multi-screen display. To do. Of course, such thinning processing is not performed when an instruction is given to display the moving image on the monitor 28 as it is.
The image memory 25 is a storage unit that stores the image signals thinned out by the sampling circuit 24. The digital / analog conversion circuit 26 uses the image signal of the moving image output from the sampling circuit 24 or the image memory 25.
The image signal of the still image for multi-screen display stored in is converted into an analog signal. Video encoder 27
Converts the analog signal output from the digital / analog conversion circuit 26 into a signal that can be displayed on the monitor 28, and outputs the signal to the monitor 28.

The monitor 28, which corresponds to the display means 7 in FIG. 1, is connected to the image reproducing apparatus 1 and displays a still image or a moving image according to the image signal sent from the image reproducing apparatus 1. The photo reflector 29 corresponds to the insertion detecting means 6 in FIG.
Detecting that 0 is inserted, the signal is sent to the system control circuit 19.

Next, the operation of the image reproducing apparatus 1 will be described. Prior to the reproduction of the moving image, the operator designates the number (n) of still images to be displayed on one screen of the monitor 28 by the first selection SW 16, that is, the number of multi-screen divisions on the monitor 28. Here, n is an integer. Also, the second
Time (m) for how many minutes to extract the still image from the image data of the moving image by the operation SW17
Is specified. Of course, the n and m can be entered by the operator as desired.

When the photo reflector 29 detects that the disc 10 has been inserted into the image reproducing apparatus 1, the system control circuit 19 drives the disc motor 22 via the servo controller 20 and the driver 23 to drive the disc 1.
While rotating 0, the feed motor 21 is controlled to read the image data recorded on the disk 10 by the optical pickup 11. The image data read by the optical pickup 11 is decoded by the signal amplification circuit 12, the demodulation / error correction circuit 13, the system decoder 14 and the image data decoder 15.

At this time, the system control circuit 19 reproduces a still image which is an index image prior to the reproduction of the moving image in accordance with the number of sheets and the time interval designated by the first selection SW16 and the second selection SW17. For example, when n = 6 and m = 5 are designated, the image reproducing apparatus 1 is controlled so as to read the image data of the points of the plurality of display images shown in FIG.

As a method of retrieving the designated point from the image data, for example, only the designated portion may be read while scanning the disc 10 with the optical pickup 11 or recorded in the disc 10. It is also possible to first read the recorded time information, extract the position at which the still image is reproduced from the time information, and read the image data at the position corresponding thereto.

Next, the system control circuit 19 thins out the decoded image signal in the sampling circuit 24 so that the resolution becomes a multi-screen display on the monitor 28. The image signal subjected to the thinning-out process is temporarily stored in the image memory 25 in a state capable of multi-screen display. The image signal stored in the image memory 25 is sent to the monitor 28 via the digital / analog conversion circuit 26 and the video encoder 27, and multi-screen display of a still image as shown in FIG. 4 is performed. As described above, in the image reproducing apparatus 1 according to the present embodiment, when the disc 10 in which the moving image scene is recorded is inserted into the image reproducing apparatus 1, the plurality of still images are forcibly displayed on the monitor 28.

With such a configuration, the operator can grasp the contents of the moving image scene recorded on the recording medium by confirming the multi-screen display. as a result,
For example, even if one moving image scene is long, the contents of one moving image scene can be easily grasped by the plurality of still images generated from the moving image data. Also, from the moving image data recorded on the recording medium, still images are generated at equal time intervals as desired by the operator or at a desired number in the recording medium, and the generated still images are displayed in a split multi-screen display. Because it is possible, you can search the moving image recorded on the recording medium in detail,
The recorded contents can be confirmed. That is, the first selection S
Since the number of still images that can be displayed on the multi-screen can be increased by operating W16 again to increase the number of divisions of the multi-screen, the details of the moving image scene can be grasped more finely. On the contrary, by reducing the number of divisions, one still image can be displayed in a large size, so that it is possible to observe details.
Furthermore, by shortening the time interval designated by the second selection SW 17, the contents can be easily grasped even in a moving image scene in which the shooting contents change drastically. On the contrary, by lengthening the time interval, it is possible to roughly understand the entire moving image scene recorded on one recording medium.

Next, the operator designates any one of the still images displayed on the multi-screen by the third selection SW 18. Specifically, it is designated by operating the input device such as a mouse while referring to the monitor 28 and clicking one of the still images. The signal from the third selection SW 18 is input to the system control circuit 19, and the system control circuit 19 receives the signal and reproduces the moving image from the selected still image point, and the disc motor 22 and the optical pickup. 11, the sampling circuit 24 and the like are controlled to reproduce the moving image.

With such a configuration, it is possible to start the reproduction of a long moving image even from a scene in the middle thereof. As a result, the operator does not have to perform an operation such as fast-forwarding the image up to the target moving image scene, and the image can be quickly reproduced. (Modification 1) In the above description, the still images at the time intervals designated by the operator are displayed on the multi-screen by the second selecting means 17. However, for example, the recording medium is previously scanned or recorded on the disk 10. The total recording time recorded on the disc 10 is grasped by reading out the recording time information, and the total recording time is divided by the number of divisions selected by the first selection SW 16 as shown as a point in FIG. You may read the image data of a point.

With such a configuration, the operator does not need to select and specify the display time interval. (Modification 2) In addition, although the recording format of the moving image is not particularly limited in the above description, of course MPEG (Movi
ng Picture Experts Group) It can also be applied to playback of compressed moving images. In MPEG compression, I-picture (Intra-Pic)
ture: Intra-frame coded image), P-picture (Predict
There are three types of image data: ive-Picture: inter-frame forward predictive encoded image) and B-picture (Bidirectionally-Picture: bidirectional predictive encoded image).
Of these, only the I-picture has information of its own
This is data that can form one image. Therefore, the first
When the image data of the point designated by the selection SW 16 or the second selection SW 17 is the P-picture or the B-picture, the I-picture near the designated point is used to generate the still image.

With such a configuration, a multi-screen still image can be generated even from MPEG-compressed image data. In the above embodiments, the recording medium is exemplified by a disc-shaped disc capable of optically recording and reproducing digital image data, but the recording medium is not limited to this, and it can be magnetically recorded in a randomly accessible format. It may be one that can be recorded and reproduced magneto-optically. Further, although the display means is provided separately from the image reproduction device, this display means may be integrated into the image reproduction device.

According to the present embodiment described above, it is possible to propose an image reproducing apparatus having the following structure. That is, (1) a reproducing means for reproducing a moving image recorded in a recording medium, and a display processing means for generating a plurality of still images from the moving image recorded in the recording medium and displaying them on a multi-screen. An image reproducing apparatus, characterized in that, when performing the multi-screen display, an image of a point obtained by dividing a total recording time of recorded moving images by an integer is displayed.

(2) A reproducing means for reproducing the moving image recorded on the recording medium, and a display processing means for generating a plurality of still images from the moving image recorded on the recording medium and displaying them on a multi-screen. An image reproducing apparatus characterized in that, when performing the multi-screen display, still images are displayed on the multi-screen at each time interval designated by an operator.

(3) The image reproducing apparatus described in (1) or (2) above, further comprising multi-screen division number selecting means for selecting and instructing the number of screens of still images to be displayed on a multi-screen. (4) The image reproducing apparatus according to the above (2), further comprising display time interval instruction means for generating a plurality of still images from moving images.

(5) The image reproducing apparatus as described in (1) or (2) above, wherein when the recording medium is inserted into the image reproducing apparatus, a multi-screen display is forcibly performed. (6) The above (1) or (1), characterized in that the multi-screen selecting means is provided, and when one of the plurality of still images displayed in the multi-screen is selected, reproduction of the moving image is started from the selected image position. The image reproducing device according to 2).

(7) The recording medium is a disk-shaped disc capable of optically and magnetically or magneto-optically recording and reproducing image data.
An image reproducing device according to claim 1. (8) An optical pickup for reading moving image data recorded on an optical disk, a still image generating means for generating a plurality of still image signals at predetermined intervals from the moving image data read by the optical pickup, and the operator Still image position indicating means for instructing the number of still images or time intervals generated by the still image generating means, and the still image signal generated by the still image generating means are converted into signals that can be displayed on a multi-screen on a display means such as a monitor. An image reproducing apparatus, comprising: an encoder for controlling and a control unit for controlling them.

[0031]

According to the first image reproducing apparatus of the present invention,
Since the still image generating means for generating a still image from the moving image recorded on the recording medium at a predetermined interval is provided, it is possible to provide an image reproducing device that allows easy understanding of the content of the moving image. Also,
Since the second image reproducing apparatus of the present invention is provided with the still image position instructing means for instructing the position where the still image is to be generated from the moving image, the still image can be generated at the predetermined interval designated by the operator, Therefore, it is possible to provide an image reproducing device that can easily grasp the details of the moving image.

Further, the third image reproducing apparatus of the present invention is adapted to start reproducing the moving image from the still image position selected based on the instruction of the operator among the generated still images. Therefore, it is possible to provide an image reproducing device which can easily reproduce a desired moving image.

[Brief description of drawings]

FIG. 1 is a schematic functional block diagram of an image reproducing device according to an embodiment of the present invention.

FIG. 2 is a detailed functional block diagram of the image reproducing device according to the embodiment of the present invention.

FIG. 3 is an image diagram showing an arrangement of image data recorded on a recording medium according to an embodiment of the present invention.

FIG. 4 is an output image diagram of a display unit that displays a multi-screen according to the embodiment of the present invention.

FIG. 5 is an image diagram showing an arrangement of image data recorded on a recording medium in a modified example of the embodiment of the present invention.

[Explanation of symbols]

 1 Image Reproducing Device 10 Disk 11 Optical Pickup 16 First Selection Switch (SW) 17 Second Selection Switch (SW) 18 Third Selection Switch (SW) 19 System Control Circuit 24 Sampling Circuit 25 Image Memory 28 Monitor 29 Photo Reflector

Claims (3)

[Claims] 1. An image reproducing apparatus for reproducing a moving image recorded on a recording medium, comprising: a still image generating means for generating a still image from the moving image at a predetermined interval. Playback device. 2. The image reproducing apparatus according to claim 1, further comprising a still image position indicating means for indicating a position where the still image is to be generated from the moving image. 3. The reproduction of the moving image is started from a still image position selected based on an instruction of an operator among the generated still images.
An image reproducing device according to claim 1.