Matsushita Electric Industrial Co., Ltd.

Toshikazu Fujioka

Shin Yamada

Toshiki Kindo

Katsuhiro Kanamori

A scene change point detecting method which detects a scene change point by successively processing time series frame images I1, I2, I3, - - - sampled in this order from a processed video. The method includes at least one of the following four scene-change-point detecting methods: a first scene-change-point detecting method for detecting a video cut; a second scene-change-point detecting method for detecting a scene change similar to dissolve by processing a feature quantity to be calculated based on an edge intensity of each frame image; a third scene-change-point detecting method for detecting a scene change similar to wipe based on an intensity-changed pixel region representing a set of pixels whose brightness changes more than a predetermined threshold between a specific frame image In and an immediately preceding frame image In-1; and a fourth scene-change-point detecting method for detecting a scene change similar to page-translate or a scene change resulting from camera movement based on an intensity-changed pixel area representing a ratio of the number of pixels involved in the intensity-changed pixel region to the total number of pixels constituting a corresponding frame image.

Scene change detecting method for video and movie

An image judging device provided with a sampling unit for obtaining image data suitable for judging quality of an image by sampling image signals obtained by color separation, a calculation unit for calculating a statistic representing characteristics of a distribution of the sampled image data and a judgement unit for judging the quality of the image according to the calculated statistic. Thus, a statistical processing of the image data can be performed correctly. Further, an error rate, at which a wrong light source is deduced, can be decreased in comparison with a conventional device.

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Kawasaki, Japan

Toshikazu Fujioka