公开(公告)号：US20160267348A1

公开(公告)日：2016-09-15

申请号：US15032195

申请日：2014-11-17

Applicant: SONY CORPORATION

Inventor： Yuhi KONDO

IPC: G06K9/46 ,  G06T7/00 ,  G06K9/20

CPC classification number: G06K9/4671 ,  G02B5/3025 ,  G02B27/286 ,  G06K9/00255 ,  G06K9/2036 ,  G06K9/209 ,  G06K9/4661 ,  G06T7/73 ,  G06T2207/10141

Abstract: A polarization image acquisition unit (11) acquires polarization images of three or more polarization directions. A feature quantity computation unit (15) computes image feature quantities on the basis of the acquired polarization images. For example, the luminance of each polarization image is normalized for each pixel, and the normalized luminance of the polarization image is used as the image feature quantity. The luminance of the polarization image changes according to the surface shape of an object. Thus, the image feature quantities computed on the basis of the polarization images are feature quantities corresponding to the surface shape of the object. Image processing, for example, image recognition, feature point detection, feature point matching, or the like, can be performed on the basis of the surface shape of the object using such image feature quantities.

Abstract translation: 偏振图像获取单元（11）获取三个或更多个偏振方向的偏振图像。 特征量计算单元（15）基于所获取的偏振图像来计算图像特征量。 例如，对每个像素对每个偏振图像的亮度进行归一化，并将偏振图像的归一化亮度用作图像特征量。 偏振图像的亮度根据物体的表面形状而变化。 因此，基于偏振图像计算出的图像特征量是与物体的表面形状对应的特征量。 可以基于使用这种图像特征量的对象的表面形状来执行图像处理，例如图像识别，特征点检测，特征点匹配等。