发明名称 Method, device, and system for pre-processing a video stream for subsequent motion detection processing
摘要 There is provided a method for pre-processing a video stream for subsequent motion detection processing. The method comprises receiving a video stream of images, wherein each image in the video stream is represented by a first plurality of bits; enhancing the video stream of images by, for each image in the video stream: comparing the image to at least one previous image in the video stream so as to identify pixels where the image differs from the at least one previous image in the video stream, enhancing the image in those pixels where the image differs from the at least one previous image in the video stream; and converting the enhanced video stream of images so as to produce a converted video stream of images for subsequent motion detection processing, wherein each image in the converted video stream is represented by a second plurality of bits being lower than the first plurality of bits.
申请公布号 US9628751(B2) 申请公布日期 2017.04.18
申请号 US201514922346 申请日期 2015.10.26
申请人 Axis AB 发明人 Johansson Emanuel;Bylander Mats;Bengtsson Jesper;Winzell Thomas
分类号 H04N5/77;G06T5/00;G08B13/196;H04N7/18;G06T5/50;H04N21/2343;H04N21/4402 主分类号 H04N5/77
代理机构 Oblon, McClelland, Maier & Neustadt, L.L.P. 代理人 Oblon, McClelland, Maier & Neustadt, L.L.P.
主权项 1. A method for motion detection processing of a video stream, comprising: receiving a video stream of images, wherein each image in the video stream is represented by a first plurality of bits, enhancing the video stream of images by, for each image in the video stream: comparing the image to at least one previous image in the video stream so as to identify pixels where the image differs from the at least one previous image in the video stream,enhancing the image in those pixels where the image differs from the at least one previous image in the video stream, converting the enhanced video stream of images so as to produce a converted video stream of images, wherein each image in the converted video stream is represented by a second plurality of bits being lower than the first plurality of bits, and applying motion detection processing to the converted video stream of images.
地址 Lund SE