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公开(公告)号：US09451172B2
公开(公告)日：2016-09-20
申请号：US14585604
申请日：2014-12-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hai Chen , Meijun Wan
CPC classification number: H04N5/2352 , G06T5/007 , G06T5/50 , G06T2207/10144 , G06T2207/20208 , H04N5/23254 , H04N5/23267
Abstract: A method and an apparatus for correcting a multi-exposure motion image are disclosed, where the method includes determining a luminance mapping function, where the luminance mapping function is a luminance mapping relationship between a reference frame and multiple extended frames; mapping a luminance of an extended frame by using the luminance mapping relationship to obtain a virtual frame; calculating a global motion vector between the virtual frame and the reference frame; correcting a pixel of the extended frame according to the global motion vector to obtain a first extended frame after correction; detecting a pixel of the first extended frame according to the reference frame to obtain a local error pixel of the first extended frame; and correcting a luminance of the local error pixel of the first extended frame to obtain a second extended frame after correction.
Abstract translation: 公开了一种用于校正多曝光运动图像的方法和装置，其中所述方法包括确定亮度映射函数，其中亮度映射函数是参考帧与多个扩展帧之间的亮度映射关系; 通过使用亮度映射关系映射扩展帧的亮度以获得虚拟帧; 计算虚拟帧和参考帧之间的全局运动矢量; 根据全局运动矢量校正扩展帧的像素，以获得校正后的第一延伸帧; 根据参考帧检测第一扩展帧的像素以获得第一扩展帧的局部误差像素; 以及校正所述第一扩展帧的所述局部误差像素的亮度以在校正之后获得第二延伸帧。
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公开(公告)号：US20150116513A1
公开(公告)日：2015-04-30
申请号：US14585604
申请日：2014-12-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hai Chen , Meijun Wan
CPC classification number: H04N5/2352 , G06T5/007 , G06T5/50 , G06T2207/10144 , G06T2207/20208 , H04N5/23254 , H04N5/23267
Abstract: A method and an apparatus for correcting a multi-exposure motion image are disclosed, where the method includes determining a luminance mapping function, where the luminance mapping function is a luminance mapping relationship between a reference frame and multiple extended frames; mapping a luminance of an extended frame by using the luminance mapping relationship to obtain a virtual frame; calculating a global motion vector between the virtual frame and the reference frame; correcting a pixel of the extended frame according to the global motion vector to obtain a first extended frame after correction; detecting a pixel of the first extended frame according to the reference frame to obtain a local error pixel of the first extended frame; and correcting a luminance of the local error pixel of the first extended frame to obtain a second extended frame after correction.
Abstract translation: 公开了一种用于校正多曝光运动图像的方法和装置，其中所述方法包括确定亮度映射函数，其中亮度映射函数是参考帧与多个扩展帧之间的亮度映射关系; 通过使用亮度映射关系映射扩展帧的亮度以获得虚拟帧; 计算虚拟帧和参考帧之间的全局运动矢量; 根据全局运动矢量校正扩展帧的像素，以获得校正后的第一延伸帧; 根据参考帧检测第一扩展帧的像素以获得第一扩展帧的局部误差像素; 以及校正所述第一扩展帧的所述局部误差像素的亮度以在校正之后获得第二延伸帧。
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