Decoding method and decoding apparatus of coded moving image sig

Details Decoding method and decoding apparatus of coded moving image sig Decoding method and decoding apparatus of coded moving image sig

1998-02-20

2000-05-23

Kelley, Christopher

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

348419, 348512, H04B 166, H04N 712

Patent

active

060673230

ABSTRACT:
The invention provides a decoding method of coded moving image signal and a decoding apparatus using the same, being a decoding method of moving image signal obtained by coding input digital moving image signals, gathering in a unit of one picture, issuing bit streams including the time information of present picture, accumulating the bit streams in the transmission side buffer, and decoding the bit streams being controlled to code a next picture when the buffer residue capacity becomes smaller than a certain threshold, characterized by calculating the time between pictures from the generated coding amount of the received previous picture, the threshold and transmission speed, comparing the time information extracted from the input bit stream and the time between pictures, and judging whether the extracted time information is correct or not. Accordingly, if there is an error in the time information of bit streams, the error can be detected, and decoding on the basis of wrong time information is prevented, so that obvious disturbance of decoded image can be prevented.

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European Search Report for Int'l Appln. No. 98102079.5 dated Jun. 10, 1998.

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