Using encoding cost data for segmentation of compressed image se

Details Using encoding cost data for segmentation of compressed image se Using encoding cost data for segmentation of compressed image se

1997-09-15

2000-05-02

Bella, Matthew C.

Image analysis

Image compression or coding

382173, 382235, 382236, G06K 936

Patent

active

060582103

ABSTRACT:
A method for processing compressed digital data derived from an original image sequence, the data being organized as a set of image frames, each image frame comprising a set of blocks, each block including a string of bits corresponding to an area of the original image frame in the original image sequence. A cost function is derived as a number related to the amount of bits spent to encode a block, sets of blocks, an image frame, or sets of image frames. A segmentation technique is applied to the map with cost functions. Temporal segmentation is performed by analyzing cost functions associated with each image frame. In both cases auxiliary functions can be used to improve the segmentation quality. The segmented regions of a image frame or sets of image frames can be identified, replaced, printed, or processed in special manners.

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