Coding process

Details Coding process Coding process

H - Electricity

04

N

H04N 7/12 (2006.01) H04N 7/26 (2006.01) H04N 7/46 (2006.01) H04N 5/44 (2006.01)

Patent

CA 2108254

With the coding of picture signals, motion vectors are often determined for blocks of picture elements. A method is described in EP 0 414 113 which explains how a zoom aid pan vector can be generated for always a complete picture from an array of motion vectors for blocks of picture elements. With a format conversion of picture signals which are sub-sampled at least vertically prior to the coding, motion parameters valied for always a complete picture are used in order to gain a maximum local resolution after the sub- sampling. Only the remaining, incompletely motion- compensated parts of the picture are detected by a simple alteration detector and vertically filtered in the field.

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