Method and system for video transcoding
First Claim
Patent Images
1. A system for transcoding compressed video signals, including a plurality of pictures, comprising:
- a decoder to completely or partially decode an input compressed video signal,a look-ahead estimator to gather information from said input compressed video signal prior to input to said decoder to estimate future signal characteristics of one or more future incoming pictures, and to gather information from said decoder to estimate current signal characteristics of a current picture; and
an encoder to compress the reconstructed video signal according to a coding scheme derived from said current and future signal characteristics from said look-ahead estimator.
5 Assignments
0 Petitions
Accused Products
Abstract
A system for transcoding compressed video signal, including a plurality of pictures, comprising an estimator to gather information and estimate the signal characteristics about the video signal; a decoder to completely or partially decode the compressed video signal; and an encoder to compress the reconstructed video signal according to a coding scheme devised on the estimated signal characteristics from the estimator.
70 Citations
23 Claims
-
1. A system for transcoding compressed video signals, including a plurality of pictures, comprising:
-
a decoder to completely or partially decode an input compressed video signal, a look-ahead estimator to gather information from said input compressed video signal prior to input to said decoder to estimate future signal characteristics of one or more future incoming pictures, and to gather information from said decoder to estimate current signal characteristics of a current picture; and an encoder to compress the reconstructed video signal according to a coding scheme derived from said current and future signal characteristics from said look-ahead estimator. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method for video transcoding, comprising:
-
decoding, at least partially, a compressed video signal to produce an at least partially reconstructed video signal, said compressed video signal being a data stream coded by a first coding scheme; determining a current picture complexity for at least a portion of a current picture in said at least partially reconstructed video signal; looking ahead to estimate complexities of one of more future pictures or portions thereof, said future pictures in said compressed video signal prior to input to said decoder; selecting a second coding scheme based on said current picture complexity and said future picture complexities; and encoding said current picture using said second coding scheme and said current picture complexity. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
-
Specification