Encoding and decoding video signals using adaptive filter switch

Details Encoding and decoding video signals using adaptive filter switch Encoding and decoding video signals using adaptive filter switch

1994-06-29

1996-01-30

Ramirez, Ellis B.

Boots, shoes, and leggings

348396, G06F 1700

Patent

active

054885701

ABSTRACT:
Reference frames are generated by selectively filtering blocks of decoded video frames. The decision whether to filter a block is based on a comparison of an energy measure value generated for the block and an energy measure threshold value corresponding to the quantization level used to encode the block. The energy measure threshold value for a given quantization level is selected by analyzing the results of encoding and decoding training video frames using that quantization level. The reference frames are used in encoding and decoding video frames using interframe processing.

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patent: 5381180 (1995-01-01), Keith
patent: 5386232 (1995-01-01), Golin et al.
patent: 5432554 (1995-07-01), Nickerson et al.

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