发明名称 |
Image processing |
摘要 |
Apparatus and method for processing a sequence of images of a scene, the method including: tracking a region of interest in the sequence of images (e.g. using a Self Adaptive Discriminant filter); selecting a particular image in the sequence; selecting a set of images from the sequence, the set having one or more images that precede the particular image in the sequence of images; for each pixel in the region of interest in the particular image, determining a value for a parameter; for each pixel in the region of interest of each image in the set of images, determining a value for the parameters; and comparing a function of the determined values for the region of interest in the particular image to a further function of the determined values for the regions of interest in the images in the set of images. |
申请公布号 |
US8798320(B2) |
申请公布日期 |
2014.08.05 |
申请号 |
US201113702689 |
申请日期 |
2011.09.28 |
申请人 |
BAE Systems PLC |
发明人 |
Stephens Benjamin James;Thueux Yoann Paul Georges;Williams Mark Lawrence |
分类号 |
G06K9/00;G06T7/20 |
主分类号 |
G06K9/00 |
代理机构 |
Maine Cernota & Rardin |
代理人 |
Maine Cernota & Rardin |
主权项 |
1. A method of processing a sequence of images of a scene, the method comprising:
tracking a region of interest in the sequence of images using a Self Adaptive Discriminant filter; selecting a particular image in the sequence; selecting a set of images from the sequence, the set of images containing one or more images that precede the particular image in the sequence of images; and for each pixel in the region of interest in the particular image, determining a value for one or more parameters; said parameters comprising red-intensity, green-intensity and blue-intensity of a pixel; for each pixel in the region of interest of each image in the set of images, determining a value for the one or more parameters; and comparing a function of the determined values for the region of interest in the particular image to a further function of the determined values for the regions of interest in the images in the set of images said comparing of a function of the determined values for the region of interest in the particular image to a further function of the determined values for the regions of interest in the images in the set of images, comprises: for the particular image, determining a histogram of the determined values for the region of interest in that image; for each of the images in the set of images, determining a histogram of the determined values for the region of interest in that image; determining a histogram that is a function of the histograms determined for each of the images in the set of images; and determining a value of a parameter that is indicative of a difference between the histogram determined for the particular image and the histogram that is a function of the histograms determined for each of the images in the set of images. |
地址 |
London GB |