Using estimated distortion values

Details Using estimated distortion values Using estimated distortion values

1998-10-30

2000-10-31

Britton, Howard

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

348699, H04N 736

Patent

active

061413828

ABSTRACT:
After performing integer-pel motion estimation to select the best integer-pel location, half-pel (or other fractional-pel) motion estimation is performed by estimating the distortion values for all of the surrounding half-pel locations by linearly interpolating using the distortion value for the best integer-pel location and the distortion values available from the integer-pel motion estimation analysis corresponding to the surrounding integer-pel locations. A subset of those half-pel locations is then selected as candidate half-pel locations (e.g., based on lowest estimated distortion values) and true distortion values are then generated for those candidate locations. The best half-pel location is then selected based on the distortion values for the candidate half-pel locations and the best integer-pel location. This best half-pel location may then be used to perform the motion-compensated inter-frame differencing step of a video coding scheme.

REFERENCES:
patent: 5623313 (1997-04-01), Naveen
patent: 6028638 (2000-02-01), Kim
patent: 6058212 (2000-05-01), Yokoyama
patent: 6067322 (2000-05-01), Wang
Jechang Jeong Et Al: "Subpixel-Accuracy Motion Estimation Using a Model for Motion-Compensated Errors" Proceedings of the Picture Coding Symposium (PCS), CH, Lausanne, SFIT, vol. -, Mar. 17, 1993, p. 134-A-134-B XP000346451 paragraph 'OOII!
Senda Y Et Al: "A Smiplified Motion Estimation Using an Approximation for the MPEG-2 Real-Time Encoder" Proceedings of the International Conference on Acoustics, Speech, and Signal Proceedings (ICASSP), US, New York, IEEE, vol. CONF. 20, May 9, 1995, p. 2273-2276 XP000535407 ISBN: 0-7803-2432-3 paragraph '02.2!
PCT International Search Report corresponding to PCT application PCT/US99/21833.

Affiliated with

Also associated with

Rating

Using estimated distortion values does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Using estimated distortion values, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Using estimated distortion values will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2062068