| 摘要 |
To modify the aspect ratio of images in a video sequence, a measure of image energy isprovidedat or around each pixel, for example by taking differences between adjacent pixels. A minimum energy path of contiguous pixels is then identified which extendsacross the imagefrom one edge to another, for example vertically if the width of the picture is to be modified. Information concerning the location of a path in one image is used in the identification of a path in the next image, for example by biassing the energy measureof the path. The aspect ratio of each image is then modified by removing or by replicating the minimum energy path of contiguous pixels. |
