Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Patent
1997-06-04
2000-05-23
Britton, Howard
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
348416, H04B 106, H04N 712
Patent
active
060673222
ABSTRACT:
A motion estimator/compensator determines whether to use half-pixel motion vector encoding by comparing the relative benefit of using half-pixel encoding, represented in terms of distortion between the macroblock as encoded and prior to encoding, to the processing burden imposed upon the client computer system in decoding the half-pixel encoded macroblock. Specifically, the motion estimator/compensator quantifies distortions in encoding a subject macroblock as a motion vector to (i) a whole pixel pseudo-macroblock, (ii) a half-column pixel pseudo-macroblock, (iii) a half-row pixel pseudo-macroblock, or (iv) a half-column/half-row pixel pseudo-macroblock. The type of motion vector encoding having the smallest combination of distortion and decoder processing burden is selected and used to encode the subject macroblock. Thus, each type of half-pixel motion estimation is evaluated individually and used for encoding the subject macroblock only if the benefit of the type of half-pixel motion estimation justifies the corresponding additional processing burden imposed upon a client computer system.
REFERENCES:
patent: 4873573 (1989-10-01), Thaomas
patent: 5247355 (1993-09-01), Freederiksen
patent: 5351095 (1994-09-01), Kerdranvat
patent: 5379351 (1995-01-01), Fandrianto et al.
patent: 5414469 (1995-05-01), Gonzales et al.
patent: 5453801 (1995-09-01), Kim
patent: 5473379 (1995-12-01), Horne
patent: 5488419 (1996-01-01), Hui et al.
patent: 5493344 (1996-02-01), Yu
patent: 5502492 (1996-03-01), Jung
patent: 5512952 (1996-04-01), Iwamura
patent: 5537155 (1996-07-01), O'Connell et al.
patent: 5557341 (1996-09-01), Weiss et al.
patent: 5576676 (1996-11-01), Lee et al.
patent: 5587741 (1996-12-01), Kim
patent: 5623312 (1997-04-01), Yan et al.
patent: 5623313 (1997-04-01), Naveen
patent: 5748903 (1998-05-01), Agarwal
patent: 5768537 (1998-06-01), Butter et al.
patent: 5805228 (1998-09-01), Proctoor et al.
Britton Howard
Microsoft Corporation
Vo Tung
LandOfFree
Half pixel motion estimation in motion video signal encoding does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Half pixel motion estimation in motion video signal encoding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Half pixel motion estimation in motion video signal encoding will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1842059