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1. 发明申请

WO2013064891A1 METHOD AND SYSTEM FOR LUMINANCE ADJUSTMENT OF IMAGES IN AN IMAGE SEQUENCE 审中-公开
标题翻译：用于图像序列中的图像的鲁棒调整的方法和系统
公开(公告)号：WO2013064891A1
公开(公告)日：2013-05-10
申请号：PCT/IB2012/002274
申请日：2012-10-19
申请人： CANON KABUSHIKI KAISHA
发明人： GUPTA, Amit Kumar , TOJO, Hiroshi , PARTIS, Ashley , SEE, David, Kenji , PAKULSKI, Peter, Jan
IPC分类号： G06T5/00
CPC分类号： H04N5/243 , G06T5/009 , G06T2207/10016 , G06T2207/20021 , G06T2207/20052 , H04N5/20
摘要： Disclosed are a method and apparatus for adjusting a set of luminance values associated with a set of visual elements in a current frame (310) of a video sequence for object detection (370). The method determines (410,430,450), for each of a plurality of scenarios (SO, SI, S2), a set of adjusted luminance values based on a corresponding luminance compensation value, and accumulates (460), for each scenario, a set of brightness counts and darkness counts of the current frame based on the set of adjusted luminance values. A metric (470) is calculated for each scenario based on the set of brightness counts and darkness counts and one of scenarios is selected based on the calculated metric. The method then selects (350) the adjusted luminance value associated with the selected scenario as an adjusted set of luminance values associated with the current frame of the video sequence.
摘要翻译：公开了一种用于调整与用于对象检测的视频序列（370）的当前帧（310）中的一组视觉元素相关联的一组亮度值的方法和装置。该方法针对多个场景（SO，SI，S2）中的每一个，基于对应的亮度补偿值的一组调整的亮度值来确定（410,430,450），并且对于每个场景累积（460）一组亮度基于调整亮度值的集合，当前帧的计数和暗度计数。基于亮度计数和暗度计数，针对每个场景计算度量（470），并且基于所计算的度量来选择场景中的一个。该方法然后将与所选场景相关联的经调整的亮度值（350）选择（350）作为与视频序列的当前帧相关联的调整的亮度值集合。

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