Error concealment in digital television signals

Details Error concealment in digital television signals Error concealment in digital television signals

1985-09-04

1987-06-23

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358163, 358 21R, H04N 514

Patent

active

046757350

ABSTRACT:
Concealing errors in a digital television signal, which has a plurality of component sample values corresponding respectively to sample positions along a horizontal scan line of a television picture made up of a plurality of scan lines, in respect of each sample value which is in error, by calculating a first concealment accuracy by determining the difference between two immediately adjacent sample values both in the scan line immediately preceding or following the scan line which the error sample is in, and one of which sample values is immediately adjacent to the error sample, calculating a second concealment accuracy by determining the difference between two immediately adjacent sample values both in the vertical line immediately preceding or following the vertical line which the error sample is in, and one of which sample values is immediately adjacent to the error sample, selecting from the available concealment accuracies a preferred direction of the television picture for concealing the error sample, calculating a corrected value of the error sample using available sample values disposed along the preferred direction, and substituting the corrected sample value for the error sample so as to conceal the error.

REFERENCES:
patent: 4381519 (1981-09-01), Wilkinson et al.
patent: 4464686 (1984-08-01), Reitmeier
patent: 4470065 (1984-09-01), Reitmeier
patent: 4517600 (1985-05-01), Reitmeier
patent: 4573070 (1986-02-01), Cooper
patent: 4586082 (1986-04-01), Wilkinson

Affiliated with

Also associated with

Rating

Error concealment in digital television signals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Error concealment in digital television signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Error concealment in digital television signals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-725280