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    • 30. 发明授权
    • Systems and methods for correcting geometric distortions in videos and images
    • 用于校正视频和图像中的几何失真的系统和方法
    • US09355438B2
    • 2016-05-31
    • US14596986
    • 2015-01-14
    • Infosys Limited
    • Sachin MehtaRajarathnam Nallusamy
    • G06K9/40G06T5/00G06T1/00G06T3/00G06T5/50
    • G06T5/006G06T1/0064G06T3/0006G06T5/50G06T2207/10016
    • The geometric distortions of videos and images are corrected wherein a plurality of geometrically distorted frames are mapped with a plurality of original frames of the video content. Further, one or more features associated with the mapped frames are identified as insensitive to the one or more geometric distortions. One or more features of the mapped frames are further mapped with original frames based on a predefined similarity threshold and thereafter one or more geometric distortion parameters are determined. Furthermore, a frame level average distortion and a video level average distortion of each of the one or more geometric distortion parameters are determined, based on which the one or more geometric distortions of the video content are corrected.
    • 校正视频和图像的几何失真,其中多个几何失真的帧与视频内容的多个原始帧映射。 此外,与映射的帧相关联的一个或多个特征被识别为对一个或多个几何失真不敏感。 基于预定义的相似性阈值,映射的帧的一个或多个特征进一步与原始帧进行映射,此后确定一个或多个几何失真参数。 此外,确定一个或多个几何失真参数中的每一个的帧级平均失真和视频电平平均失真,基于此校正视频内容的一个或多个几何失真。