Foreground/background segmentation in digital images
    3.
    发明授权
    Foreground/background segmentation in digital images 有权
    数字图像中的前景/背景分割

    公开(公告)号:US07868922B2

    公开(公告)日:2011-01-11

    申请号:US11573713

    申请日:2006-08-21

    IPC分类号: H04N5/232

    摘要: An implementation efficient method of distinguishing between foreground and background regions of a digital image of a scene includes capturing two images of nominally the same scene and storing the captured images in DCT-coded format. The first image is taken with the foreground more in focus than the background and the second image is taken with the background more in focus than the foreground. Regions of the first image are assigned as foreground or background according to whether the sum of selected higher order DCT coefficients decreases or increases for the equivalent regions of the second image.

    摘要翻译: 区分场景的数字图像的前景和背景区域的实现有效的方法包括捕获名义上相同场景的两个图像,并以DCT编码格式存储所捕获的图像。 第一个图像是采用前景更多的焦点比背景和第二个图像被采取与背景更多的焦点比前景。 根据所选择的较高阶DCT系数的和是否相对于第二图像的等效区域减小或增加,将第一图像的区域分配为前景或背景。