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1. 发明申请

US20150145963A1 Stereo Camera 审中-公开
标题翻译：立体声相机
公开(公告)号：US20150145963A1
公开(公告)日：2015-05-28
申请号：US14410619
申请日：2013-06-03
申请人： Hitachi Automotive Systems, Ltd.
发明人： Akira Oshima , Haruki Matono , Hiroto Mitoma , Ryo Ota , Shinya Ohtsuji
IPC分类号： H04N13/00 , G06T5/00 , G06T5/40 , H04N13/02
CPC分类号： H04N13/106 , G01B11/00 , G01C11/06 , G06T5/005 , G06T5/40 , G06T7/593 , G06T2207/10012 , G06T2207/10024 , G06T2207/10048 , G06T2207/20021 , G06T2207/20172 , G06T2207/30252 , H04N13/239 , H04N13/243 , H04N2013/0081 , H04N2013/0092
摘要： In order to provide a small, stereo camera with stable errors of distance measurement, there are provided: an image acquisition unit that acquires plural images imaged by plural imaging units; a first region processing unit that divides each of the plural images acquired by the image acquisition unit into first regions composed of predetermined plural pixels, and measures a distance for each of the divided first regions to generate a first distance image; a target object extraction unit that extracts a target object from the distance image or the image, and extracts a second region composed of the plural first regions including the extracted target object; an error factor identification unit that extracts a predetermined representative value from the inside of the second region, compares the brightness value of an arbitrary pixel in the second region with that in a correspondence region up to the position moved from the arbitrary pixel by a disparity represented by the representative value, and determines an error factor on the basis of the comparison result; and a second region processing unit that determines a weight value on the basis of the error factor, and measures a distance for each second region using the weight value to generate a second distance image.
摘要翻译：为了提供具有稳定的距离测量误差的小型立体相机，提供：图像获取单元，其获取由多个成像单元成像的多个图像; 第一区域处理单元，将由图像获取单元获取的多个图像中的每一个划分成由预定的多个像素构成的第一区域，并且测量每个划分的第一区域的距离以产生第一距离图像; 目标对象提取单元，从距离图像或图像提取目标对象，并且提取由包括提取的目标对象的多个第一区域构成的第二区域; 误差因子识别单元，从第二区域的内部提取预定的代表值，将第二区域中的任意像素的亮度值与对应区域中的任意像素的亮度值相比，直到从任意像素移动的位置为代表的视差通过代表值，并根据比较结果确定误差因子; 以及第二区域处理单元，其基于所述误差因子确定权重值，并且使用所述权重值来测量每个第二区域的距离以生成第二距离图像。

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