Olympus Optical Company, Ltd.

Shigeto Ikeda

Nagaaki Ohyama

Susumu Kikuchi

Toshio Honda

Junpei Tsujiuchi

Eric Badique

The method of detecting corresponding regions between a plurality of pictue images includes respective steps of standardizing the concentration values of respective picture image signals in the operation object regions of a plurality of picture images so that an influence such as the dispersion of the concentration and brightness may be corrected, operating the correlation in the actual fields of the operation object regions and detecting the set of regions in which the operated correlation value is a maximum. The apparatus for realizing this method includes a standardizing device for standardizing the concentration values of respective picture image signals in the operation object regions of a plurality of picture images so that the influence such as the dispersion of the concentration and brightness may be corrected, a correlation operating device for operates the correlations in the actual fields of the operation object regions. A corresponding region detecting device detects the set of regions in which the correlation value operated by the correlation operating device is a maximum.

Method and apparatus for detecting corresponding regions between picture

The method for detecting corresponding regions between a plurality of picture images comprises the steps of setting respective operation object regions for a plurality of picture images, calculating a variance of mutual concentration or density distributions in the operation object regions, and detecting the operation object regions which have been set in which the calculated variance value is at a minimum. The apparatus for detecting corresponding regions between picture images comprises a variance calculating member for calculating a variance of mutual concentration or density distributions in the operation object regions of a plurality of picture images, and a corresponding region detecting member for detecting a seat of regions where a variance value calculated by the variance calculating device is at a minimum.

The method of detecting corresponding regions between primary color picture images comprises respective steps of converting three primary color signals of color picture images to at least two signals based on these three primary color signals, calculating the variance of the mutual concentration distribution in the operation object regions of the three primary color picture images from these converted signals and detecting the set of regions in which the calculated variance value is minimum. The apparatus for realizing the above mentioned method comprises a converting device for converting three primary color picture signals of color picture images to at least two signals based on these three primary color signals, a variance calculating device for calculating the variance of the mutual concentration distribution in the operation object regions of the three primary color picture images from the signals converted by this converting device and a corresponding region detecting device for detecting the set of regions in which the variance value calculated by this variance calculating device is minimum.

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Tokyo, Japan

Shigeto Ikeda