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Video processing device, video display device, video recording device, video processing method, and recording medium

A video processing, video technology, applied in the direction of color TV signal processing, record carrier editing, television, etc.

Inactive Publication Date: 2013-05-15
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, there is a high possibility that the subtitles accompanied by the quick report sound are unrelated to the original video, and it may be desirable to eliminate such subtitles.

Method used

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  • Video processing device, video display device, video recording device, video processing method, and recording medium
  • Video processing device, video display device, video recording device, video processing method, and recording medium
  • Video processing device, video display device, video recording device, video processing method, and recording medium

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Experimental program
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Embodiment approach 1

[0054] figure 1It is a block diagram showing the configuration of the video processing device 100 according to the first embodiment. The video processing device 100 receives an input video signal, detects a subtitle area including subtitles from the input video signal, and replaces (or interpolates) the subtitle area when the subtitle area is detected, and outputs the output video after eliminating the subtitles. Signal. The input video signal is, for example, a video signal of high-definition (HDTV) broadcast using 12-segment broadcasting in terrestrial digital broadcasting, or the like. Subtitles are information such as text information, symbol information, and graphic information that are superimposed, inserted, or synthesized on a video (such as the main video or the original video), such as time display, earthquake breaking news, news breaking news, subtitles, etc. Depending on the geography, content and format, subtitles are referred to as captions, subtitles, rolling ...

Embodiment approach 2

[0096] Figure 9 It is a block diagram showing the configuration of the video processing device 900 according to the second embodiment. The video processing device 900 differs from the video processing device 100 in Embodiment 1 in that the subtitle replacement method is switched according to the subtitle change detection result, and other parts are substantially the same. In the following description, the description of the same part as Embodiment 1 is omitted or simplified, and the same code|symbol is attached|subjected to the same or corresponding element as Embodiment 1. FIG.

[0097] The subtitle change detection unit 103 detects the appearance of subtitles and the switching of subtitles as a subtitle change from a series of input video frames. In one embodiment, the subtitle change detection unit 103 detects an edge of a character constituting a subtitle (subtitle character) and an edge of an outline of the character, and detects subtitle switching based on a change in ...

Embodiment approach 3

[0132] Figure 16 It is a block diagram showing the configuration of the video processing device 1600 according to the third embodiment. The video processing device 1600 differs from the video processing device 100 in Embodiment 1 in that the subtitle replacement method is switched according to the scene change detection result, and other parts are substantially the same. In the following description, the description of the same part as Embodiment 1 is omitted or simplified, and the same code|symbol is attached|subjected to the same or corresponding element as Embodiment 1. FIG.

[0133] Such as Figure 16 As shown, the video processing device 1600 further includes a scene change detection unit 1601 . The scene change detection unit 1601 detects a scene change from a series of video frames input to the video processing device 1600 . Specifically, the scene change detection unit 1601 detects a scene change of a video represented by a series of video frames. For example, the...

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PUM

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Abstract

The invention provides a video processing device, a video display device, a video recording device, a video processing method, and a recording medium. The video processing device (2400) includes: a telop detector (102) for detecting a telop area including a telop in an input sequence of video frames; an audio alert detector (2401) for detecting an audio alert from an input sequence of audio signals corresponding to the input sequence of video frames; and a video processor (105) for replacing a telop area in the video frame in which the telop area is detected with an image derived from a video frame preceding the video frame in which the telop of the telop area initially appears in the input sequence of video frames, and outputting the video frame in which the telop area has been replaced. The video processor (105) selectively replaces the telop area of a telop accompanied by an audio alert detected by the audio alert detector (2401).

Description

technical field [0001] The present invention relates to a video display device, a video recording device, a video processing device and a method. Background technique [0002] Subtitles (for example, text information such as time display, early earthquake reports, and news reports) superimposed on images are included in image signals transmitted by digital television broadcasting. By superimposing the subtitles, additional information can be obtained in addition to the original image. [0003] In particular, alarms for natural disasters such as earthquakes, floods, typhoons, emergency information such as missile attacks or terrorist acts, or emergency information such as news bulletins, are based on the bell that rings before and after subtitle display or during subtitle display. Quick report sounds (or alarm sounds, bells) such as beeps, buzzers, music, electronic sounds, etc., make the audience pay attention to the subtitles. [0004] However, there are cases where the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B27/10H04N9/82
CPCG11B27/031H04N9/82H04N9/8205G11B27/28G11B27/10H04N5/76
Inventor 大塚功福田智教
Owner MITSUBISHI ELECTRIC CORP