Picture feature extraction device, picture retrieving...

Details Picture feature extraction device, picture retrieving... Picture feature extraction device, picture retrieving...

G - Physics

06

T

G06T 7/00 (2006.01) G06F 17/30 (2006.01)

Patent

CA 2293943

In a picture feature extraction device, picture data having been determined as a moving picture by a picture data identifying section is subjected to being taken out the data corresponding to the entire frames or a part of the frames by a feature data extracting frame selecting means, upon which a resized picture generating means generates a resized picture from the data of each frame, and a frequency analyzing means analyzes a frequency of the resized picture having been generated. Then a DC component/partial AC component extracting means takes out DC components and a part of AC components, after which a feature extraction means generates feature data of the whole frames having been selected. The picture data identified as still picture data is subjected to having a resized picture generated by the resized picture generating means from the data of each frame, after which the frequency analyzing means executes a frequency analysis on the resized picture having being generated. Then as the DC component/partial AC component extracting means takes out DC components and a part of AC components obtained as a result of the analysis in order to generate a feature data.

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