Picture signal transmitting method and apparatus
AssigneeSony Corporation
InventorKatsumi Tahara
Life of this patent
Estimating the term…
Abstract
A picture type identifier, indicating one of intra-picture coding (an I-picture), forward or backward predictive coding (a P-picture) and bi-directionally predictive coding (a B-picture), is included with a picture signal when the signal is encoded and when the signal is decoded. Each of initial and subsequent encoding and decoding is a function of the included picture type.
Claims20
An apparatus for processing a picture signal that had been previously coded, comprising:
- means for receiving a picture type signal included in said picture signal indicating one of intra-picture coding, predictive coding and bi-directionally predictive coding representing the previous types of coding for respective pictures represented by said picture signal;
- and
- coding means for encoding said picture signal as a function of said picture type signal to produce an encoded picture signal.
An apparatus for processing an encoded picture signal, comprising:
- means for decoding said encoded picture signal to produce a picture type signal and a decoded picture signal, said picture type signal representing a type of encoding of said encoded picture signal;
- and
- means for multiplexing said picture type signal and said decoded picture signal to produce an output signal.
A method for processing a picture signal that had been previously coded, comprising the steps of:
- receiving a picture type signal included in said picture signal indicating one of intra-picture coding, predictive coding and bi-directionally predictive coding representing the previous types of coding for respective pictures represented by said picture signal;
- and
- encoding said picture signal as a function of said picture type signal to produce an encoded picture signal.
A method for processing an encoded picture signal, comprising:
- decoding said encoded picture signal to produce a picture type signal and a decoded picture signal, said picture type signal representing a type of encoding of said encoded picture signal;
- and
- multiplexing said picture type signal and said decoded picture signal to produce an output signal.
Dependencies are inferred from the claim text.