Concealing method of video signal

Details Concealing method of video signal Concealing method of video signal

1994-08-17

1995-05-16

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358336, 348616, 348620, H04N 594

Patent

active

054166004

ABSTRACT:
A coded digital video signal is obtained by dividing a digital video signal into plural pages each composed of K fields of pixel data, decomposing pixel data in each two pages into plural blocks each composed of a predetermined number of pixel data, and encoding the pixel data in each block by bit rate reduction encoding and error correction encoding. The thus obtained coded digital video signal is reproduced or transmitted and then subjected to a concealment process. The concealment process includes decoding the coded digital video signal to obtain reproduced blocks of pixel data and to detect an error block containing an error among the reproduced blocks, composing the reproduced blocks to obtain plural reproduced pages of pixel data, and concealing error pixel data contained in the error block in each two reproduced pages. Error pixel data in a first page is concealed using pixel data in a previous page, and error pixel data in a second page is concealed using pixel data in a succeeding page.

REFERENCES:
patent: 4638380 (1987-01-01), Wilkinson
patent: 4716565 (1987-12-01), Suma
patent: 4807033 (1989-02-01), Keesen et al.
patent: 4891699 (1990-01-01), Hamada et al.
patent: 5148290 (1992-09-01), Yamaguchi et al.

Affiliated with

Also associated with

Rating

Concealing method of video signal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Concealing method of video signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Concealing method of video signal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-642055