JPH08307739A - Video camera - Google Patents

Abstract

PURPOSE: To reproduce video by segmenting the video without impairing an object in the case that the video is reproduced by a receiver different in aspect ratio, or a part where the image to be magnified exists by providing a means to record and reproduce coordinate data representing a designated position together with a video and a means to perform the processing of a video signal based on the coordinate data. CONSTITUTION: A recording and reproducing part 105 records a video signal, an audio signal and attentional position data on a recording medium such as a video tape, and reproduces the recording medium. An attentional position detecting part 103 detects a coordinate attentional position by (x), (y), and the attentional position data is delivered from the recording and reproducing part 105 to a system control part 104 in reproduction. In such a case, when a user selects a function to output by segmenting the video by switching the aspect ratio to 16:9 by a switch 106, the system control part 104 controls the video signal processing part 107 to segment so as not to impair a prescribed square part centering about a position represented by the attentional position data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video camera capable of recording and reproducing coordinate data arbitrarily designated by a photographer from a subject image.

[0002]

2. Description of the Related Art Conventionally, in a video camera, the position where the photographer is gazing at the viewfinder is detected, and the autofocus, auto iris control, and auto white balance mechanisms are operated by assuming that the main subject is at that position, thereby taking a picture. There are products that realize functions that do not violate the intentions of others.

Also, by recording the above-mentioned gaze position data on a video tape, generating a line-of-sight frame indicating the gaze position from the gaze position data at the time of reproduction, and mixing with the reproduced video signal, only when necessary at the time of reproduction. A video camera adapted to display a line-of-sight frame has been conventionally proposed.

[0004]

However, in the above-mentioned conventional example, even if the detected gaze position data is recorded, it is used only for reproducing the line-of-sight frame at the time of reproduction. There is a problem in that when the ratio is adjusted to a receiver having a different vertical and horizontal ratio, or when a certain part of the image is enlarged, the part that the photographer is gazing at may be missing.

The present invention has been made in view of the above problems of the above-mentioned conventional technique, and its purpose is to:
When the ratio is adjusted to a receiver with different vertical and horizontal ratios by discarding the top and bottom or left and right of the image, or when enlarging a certain part of the image, the image of the subject that the photographer was aiming for is not damaged. It is to provide a video camera that can be cut out and played.

[0006]

In order to achieve the above object, a video camera of the present invention is provided with a position designating means for designating an arbitrary position in a subject image and coordinates showing the position designated by the position designating means. Recording and reproducing means for recording and reproducing data together with video and video signal processing means for processing the video signal based on the coordinate data are provided.

[0007]

The arbitrary position in the subject image is designated by the position designating means, and the coordinate data indicating the designated position is recorded / reproduced by the recording / reproducing means together with the video, and the video signal is the video signal based on the coordinate data. It is processed by the processing means.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) First, a first embodiment of the present invention will be described with reference to FIGS. In this embodiment, an image is recorded on a recording medium in a vertical to horizontal ratio of 4: 3, and when the recording medium is played back, the upper and lower sides of the image are truncated, so that the vertical to horizontal ratio is reduced. It is adapted to a 16: 9 image receiver.

FIG. 1 is a block diagram showing the structure of a video camera according to the first embodiment of the present invention. In FIG.
Reference numeral 101 denotes a camera unit for capturing an image of a subject, and reference numeral 102 denotes an EVF (electronic viewfinder) for a photographer to confirm the subject captured by the camera unit 101. Reference numeral 103 denotes a gaze position detection unit provided in the display unit 102, which detects the position of the photographer gazing in the display unit 103. Then, the photographer displays
When taking an image while checking the subject with 02, the gaze position detecting unit 103 detects the position of the photographer's gaze. A system control unit 104 controls the entire video camera, and a recording / reproducing unit 105 records a video signal, an audio signal and gaze position data on a recording medium such as a video tape and reproduces the recording medium. Reference numeral 106 denotes a switch for the user to operate the video camera.

FIG. 2 is a diagram showing a display example of the display unit 102, in which a line-of-sight frame 202 of a predetermined width is displayed in the display image 201 centered on the position where the photographer is gazing. ing. As shown in FIG. 2, the gaze position detecting unit 103 is operated at coordinates by x and y. Hereinafter, this "x, y" is referred to as gaze position data.

The system control unit 104 receives the gaze position data detected by the gaze position detection unit 103, displays a line-of-sight frame on the display unit 102, and automatically focuses the main subject at the position indicated by the gaze position data. Operates the auto iris control and auto white balance mechanism. Further, during shooting (during recording), the gaze position data is sent to the recording / reproducing unit 105 and recorded on the recording medium together with the video and audio.

FIG. 3 is a diagram showing an 8 mm video recording format as an example of the recording / reproducing unit 105. In the figure, the track 302 recorded on the 8 mm video tape 30l is visualized. As shown in the figure, the track 302 is a PCM (Pulse Co
de Modulation) area and a video area, and a Post Am provided to prevent interference between the two areas.
ble and VP Guard. This Post
303 is an enlarged part of the Amble and VP Guard parts. An 8 mm video recording format is called a video subcode, and is recorded as a PCM signal in the video subcode recording area shown in FIG. The gaze position data described above is written in the data area of this video subcode.

At the time of reproduction, the gaze position data is recorded / reproduced by the recording / reproducing unit 1.
From 05 to the system control unit 104. Here, the user uses the switch 106 to set the vertical to horizontal ratio to 1
When the function of cutting out and outputting a 6 to 9 image is selected, the system control unit 104 performs video signal processing so as to cut out a predetermined four-direction portion centered on the position represented by the gaze position data. The unit 107 is controlled. At this time, the video signal processing unit 107 performs necessary supplemental processing on the video signal and then outputs the video signal.

(Second Embodiment) Next, a second embodiment of the video camera of the present invention will be described. In the present embodiment, a part of the video is enlarged four times and output. The basic configuration of the video camera of this embodiment and the recording and reproducing of the gaze position data are the same as those of the first embodiment described above.

In this embodiment, the gaze position data is sent from the recording / playback unit 105 to the system control unit 104 during playback. Here, when the user selects the function of enlarging and outputting the image by the switch 106, the system control unit 104 cuts out the image so that the coordinates indicated by the gaze position data become the center, and the image signal processing unit 107 The video signal is output after performing necessary complementing processing on the video signal. At this time, if the image is cut out so that the coordinates indicated by the gaze position data are at the center, and if it exceeds the edge of the image, 1/2 of the total length in that direction is cut out from the edge. .

[0017]

As described above in detail, according to the video camera of the present invention, when the ratio is adjusted to a receiver having a different ratio of vertical and horizontal by truncating the image vertically or horizontally.
Alternatively, when enlarging a certain portion of the video, the video can be cut out and reproduced without damaging the subject image intended by the photographer.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a video camera according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a display example of a display unit in the video camera according to the embodiment.

FIG. 3 is a diagram showing a recording format of 8 mm video in the video camera according to the embodiment.

[Explanation of symbols]

 Reference Signs List 101 camera unit 102 display unit 103 line-of-sight detection unit 104 system control unit (position designating unit) 105 recording / reproducing unit (recording / reproducing unit) 106 switch 107 video signal processing unit (video signal processing unit) 201 display image on display unit 202 visual line frame 301 8 mm video tape 302 Recording track 303 Expanded part of recording track

Claims (1)

[Claims] 1. A position designating means for designating an arbitrary position in a subject image, a recording / reproducing means for recording / reproducing coordinate data indicating a position designated by the position designating means together with a video image, and the coordinate data based on the coordinate data. A video camera, comprising: a video signal processing means for processing a video signal.