JPH04233880A - Still/video reproducing device - Google Patents

Abstract

PURPOSE:To obtain a distinct original image signal by providing a means for outputting the information for showing whether an original image at the time of reproducing a field image is an odd-numbered field or an even-numbered field. CONSTITUTION:A still/video reproducing circuit 10 supplies a reproducing video signal of a reproduced odd- or even-numbered field to a signal processing circuit 12. Also, the still/video reproducing circuit 10 outputs information for showing whether the reproducing video signal outputted to the signal processing circuit 12 is an odd-numbered field or an even-numbered field to a control circuit 18, in addition to information of a reproducing track number, a reproducing mode, etc. The signal processing circuit 12 generates a video signal of a different field by interpolation from the reproducing video signal from the still/video reproducing circuit 10, and outputs it as a frame image to a monitor 14. Also, in accordance with a freeze request from the control circuit 18, the signal processing circuit 12 digitizes a frame image signal or an image signal of a designated field and outputs it to an image memory 16.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to still video playback apparatus.

0002

2. Description of the Related Art A recording medium of a still video playback device, for example, a still video floppy, records field video signals and frame video signals (that is, an odd field video signal and an even field video signal). signal)
In field playback mode, which plays back field video signals, a video signal for another field is created by interpolation from the played field video signal, and these field video signals are output alternately. I was doing it.

0003

[Problem to be solved by the invention] In recent years, image processing technology on computers has become widespread, and still images are being used as image sources.
Replay images from video playback devices are now used. When transferring field images from a still video playback device to a computer, the computer specifies the odd or even field of the image to be transferred to the still video playback device, but conventional still video playback devices does not output information indicating which field is the original image and which field is the interpolated image, so the computer cannot know which of the odd-even fields is the interpolated field. Therefore, there was a possibility that an interpolated image would be transferred to the computer.

[0004] It is an object of the present invention to provide a still/video playback device that solves these problems.

[0005]

A still/video reproducing apparatus according to the present invention is characterized in that it is provided with means for outputting information indicating whether an original image during field image reproduction is an odd field or an even field.

[0006]

[Operation] With the above means, an external computer or the like can know the field of the original image. Therefore, by specifying this field, a clear original image signal can be obtained.

[0007]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a block diagram of an embodiment of the present invention. 10 is a still video playback circuit that plays back images recorded on a recording medium such as a still video floppy; 12 is a signal processing circuit that processes the playback video signal output from the still video playback circuit 10; a monitor 16 that displays an image of the output signal of the signal processing circuit 12;
is the image memory. Specifically, the signal processing circuit 12 includes:
If the reproduced video signal from the still video reproduction circuit 10 is a field image, it is converted into a frame image by interpolation processing, and the brightness, brightness, hue, etc. are adjusted, and the NTSC
The monitor 14 converts it into a predetermined format such as a signal or RGB signal.
It also outputs digital image signals of odd and even designated fields to the image memory 16.

Reference numeral 18 indicates a control circuit for controlling the entire system; 20 indicates an operating device equipped with function keys for inputting various instructions, such as a forward key and a reverse key for advancing tracks on a still video floppy; 22; is a parallel interface for communicating with computers.

The operation during field image reproduction in the above embodiment will be explained. In this case, the still video reproduction circuit 10 supplies the reproduced odd or even field video signal to the signal processing circuit 12. In addition to information such as the reproduction track number and reproduction mode, the still video reproduction circuit 10 also outputs information indicating whether the reproduction video signal outputted to the signal processing circuit 12 is an odd field or an even field to the control circuit 18. The signal processing circuit 12 generates a video signal (interpolated image) of another field by interpolation from the reproduced video signal (original image) from the still video reproduction circuit 10.
is created and output to the monitor 14 as a frame image. The signal processing circuit 12 also digitizes the frame image signal or the image signal of the specified field and outputs it to the image memory 16 in accordance with a freeze request from the control circuit 18, and this digital image signal is frozen in the image memory 16.

The control circuit 18 also transmits information from the still video reproduction circuit 10 to the outside via an interface 22,
The still/video playback circuit 10 is controlled in accordance with instructions from the outside via the interface 22, and image data frozen in the image memory 16 is read out and transmitted to the outside via the interface 22. Therefore, interface 2
It is possible to tell the computer connected to the still video reproduction circuit 10 whether the video signal supplied from the still video reproduction circuit 10 to the signal processing circuit 12 is an odd field or an even field, and based on this information, the computer selects the original image when transferring the image. By specifying this field, you can obtain a clear original image.

In the above embodiment, the field information of the original image is transmitted to the outside, but the control circuit 18
Based on the field information (odd or even) of the reproduced image from the still video reproduction circuit 10, the signal processing circuit 12 digitizes the original image and sends it to the image memory 16.
The frozen image data in the image memory 16 may be transferred regardless of the field designation from the computer.

[0013]

As can be easily understood from the above description, according to the present invention, a clear original image can be reliably transferred to an external computer or the like.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention.

[Explanation of symbols]

Claims (1)

[Claims] 1. A still/video reproducing apparatus comprising means for outputting information indicating whether an original image is an odd field or an even field when reproducing a field image.