发明名称 EXTERNAL LIGHT GLARE ASSESSMENT DEVICE, LINE OF SIGHT DETECTION DEVICE AND EXTERNAL LIGHT GLARE ASSESSMENT METHOD
摘要 Disclosed are an ambient light reflection determination apparatus and an ambient light reflection determination method enabling to determine reflection without using an edge and even in a case where luminance of a reflection generating part in eyeglasses is low. In a reflection determination apparatus (100), a luminance histogram calculation section (102) calculates a luminance histogram representing a luminance distribution of an eye area image, a difference calculation section (104) calculates a difference histogram by finding a difference between the two luminance histograms calculated from the two eye area images having different photographing timings, an evaluation value calculation section (105) calculates an evaluation value regarding reflection of ambient light based on the difference histogram and a weight in accordance with luminance, and a reflection determination section (107) determines the reflection of ambient light based on the calculated evaluation value.
申请公布号 US2012170027(A1) 申请公布日期 2012.07.05
申请号 US201113390169 申请日期 2011.06.07
申请人 TSUKIZAWA SOTARO;OKA KENJI;PANASONIC CORPORATION 发明人 TSUKIZAWA SOTARO;OKA KENJI
分类号 G01N21/55 主分类号 G01N21/55
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