Video recording and reproducing apparatus and video reproducing apparatus

Abstract

The objective of the invention is changing the climax scene to abstract scene selectively and reproducing towards the audio and video frequency. A video recording and reproducing apparatus includes: an audio signal decoder configured to acquire an audio signal from an inputted audio-video signal; a recording section configured to record the inputted audio-video signal; a peak time point detecting section configured to detect, as a peak time point, a time point having a power value, which satisfies a predetermined condition, selected from among power values in the acquired audio signal; a digest scene extracting section configured to select a predetermined number of peak time points from among the detected peak time points, and to extract, as a digest scene, each piece of the audio-video signal within a predetermined digest scene cutting time period set to each of the selected peak time points in advance; and a reproduction controlling section configured to reproduce the extracted digest scenes.

Description

technical field [0001] The present invention relates to a video recording and reproducing device and a video reproducing device for automatically generating and reproducing digest scenes for audio and video signals. Background technique [0002] Conventionally, Japanese Unexamined Patent Application Publication No. 2004-350134 (Patent Document 1) describes an audio-video signal during which the power (amplitude) of the audio signal is analyzed and the power value of the audio signal exceeds a threshold value. This is a digest reproduction method in which a signal is regarded as a "climax scene" and selected and reproduced. [0003] In this conventional digest reproduction method, the audio-video signal during the period in which the power value of the audio signal exceeds the threshold value is regarded as a "climax scene" and selected for reproduction. Therefore, it is impossible to reproduce the audio-video signal before the power value of the audio signal exceeds the thre...

AI Technical Summary

Problems solved by technology

[0005] However, in the case of football, the offensive and defensive scenes up to the goal are the most attractive, so viewers want to see the moment from before the goal to the goal, and the excitement of the audience after the goal, but if you watch it from the audience's I can't appreciate the charm of the scenes after the moment when the cheers reached their climax

[0006] In addition, since the audio-video signal during the period in which the power value of the audio signal exceeds the threshold value is selected and reproduced as a digest scene, when the above-mentioned period is short, the reproduction time of the digest scene is also shortened. When the power value of the audio signal exceeds the threshold for only 1 second, only the summary scene of this 1 second is reproduced, which is extremely inconvenient for the viewer

[0007] In addition, in order to set the threshold, it is necessary to analyze the entire target audio and video signal, and there is also a problem that it is impossible to reproduce the digest scene in real-time by so-called "tracking playback".

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