Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1997-08-18
2000-08-01
Chevalier, Robert
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
386104, H04N 5917, H04N 591
Patent
active
060978805
ABSTRACT:
In the above-mentioned digital signal processing method providing the base of the invention, in the case where the total number of bits assigned to all the two-dimensional blocks fails to coincide with the bit rate specified in the coding format as a result of converting the bit allocation amount into an integer in calculating the bit allocation amount for each of the time-frequency two-dimensional blocks, then in order to attain coincidence therebetween, the maximum quantization error that may occur in the two-dimensional block for each of the time-frequency two-dimensional blocks is calculated based on the maximum signal component in the two-dimensional block or the normalized data and the assigned bit amount provisionally calculated, and the maximum quantization error is regarded as the degree of bit requirement for each two-dimensional block, so that the bits are adjusted based on the degree of bit requirement.
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Chevalier Robert
Sony Corporation
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