Patent ID: 7965874
Filing Date: 2011-06-21
Classification: G06K,G06T

Abstract:
1. A biological information detecting device, comprising: a sensor configured to sample biological information; a biological information region extraction unit configured to calculate statistical quantities, based on a value of pixel distribution of an image sampled by the sensor, and to extract a region containing biological information, based on the statistical quantities; and a partial sensitivity fluctuation correction unit configured to correct partial sensitivity fluctuations by homogenizing the value of pixel levels of a background in each partial region of the sampled image, wherein partial sensitivity fluctuations for each partial region are corrected by homogenizing the value of pixel levels of the background after homogenizing a mean value and standard deviation of the respective partial region when the standard deviation value of the respective partial region is not smaller than a standard deviation value of a total image whose sensitivity variations of each background image has been corrected, and, if the standard deviation value of the respective partial region is smaller than a standard deviation value of the total image whose sensitivity variations of each background image has been corrected, the partial sensitivity fluctuations for the respective partial region are not corrected by homogenizing standard deviation values for the respective partial region.