Video quality assessment with test video sequences

Details Video quality assessment with test video sequences Video quality assessment with test video sequences

2006-04-04

2006-04-04

Lee, Michael H. (Department: 2614)

Television

Monitoring, testing, or measuring

Test signal generator

C348S192000

Reexamination Certificate

active

07023471

ABSTRACT:
A test video sequence for testing quality loss in processed video. When video clips are transmitted, compressed/decompressed, or otherwise processed, measuring the loss of quality that occurs during processing can be improved by inserting specific types of overhead video data into the test video sequence before processing. When the processed test video sequence is compared to the pre-processed test video sequence, the overhead video data enables improvements in the comparison operation. In one embodiment, padded areas such as uniform-color frames are inserted at specified points to absorb some of the quality loss and/or to enable identification of starting and/or ending points of the video clips. In another embodiment, a special color bar is inserted before processing and used after processing to detect changes that should be corrected before comparing the video clips.

REFERENCES:
patent: 5764284 (1998-06-01), Stoker
patent: 5978029 (1999-11-01), Boice et al.
patent: 6141042 (2000-10-01), Martinelli et al.
patent: 6400400 (2002-06-01), Isnardi et al.
patent: 6493035 (2002-12-01), Nishikawa et al.

Affiliated with

Also associated with

Rating

Video quality assessment with test video sequences does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Video quality assessment with test video sequences, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video quality assessment with test video sequences will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3539745