Television – Special applications – Simulator
Patent
1995-10-26
1998-06-09
Voeltz, Emanuel T.
Television
Special applications
Simulator
348415, H04N 1417
Patent
active
057649219
ABSTRACT:
A method (100, 200), device (300) and microprocessor (400) are provided for selectively compressing video frames of a motion compensated prediction-based video codec based on a predetermined set of compression techniques. An energy estimate of the current displaced frame difference, DFD, is used to compute a ratio between the estimate and a historical mean of energy estimates. The ratio is iteratively compared to a predetermined set of thresholds which are associated with the predetermined set of compression techniques. The comparisons are used to choose a technique based on the thresholds, and a technique is selected to be used for encoding the current DFD.
REFERENCES:
patent: 5454079 (1995-09-01), Roper et al.
patent: 5463565 (1995-10-01), Cookson et al.
patent: 5483286 (1996-01-01), Kim
patent: 5535311 (1996-07-01), Zimmerman
patent: 5576767 (1996-11-01), Lee et al.
R. Neff, A. Zakhor and M. Vetterli, "Very Low Biot Rate Video Coding Using Matching Pursuits". Proc. SPIE Visual Communications and Image Processing, vol. 2308, Chicago, pp. 47-60, Sep. 1994.
R. Neff, A. Zakhor and M. Yetterli, "Matching Pursuit Video Coding at Very Low Bit Rates", Proc. IEEE Data Compression Conference, Snowbird, Utah, Mar. 1995.
S. Mallat and Z. Zhang, "Matching Pursuits with time-Frequency Dictionaries", IEEE Trans, Signal Proc., vol. 41, pp. 2297-3415, Dec. 1993.
I. H. Witten, R. M. Neal and J. G. Cleary, "Arithmetic Coding for Data Compresson", Communications of the ACM, vol. 31, No. 6, pp. 520-540, Jun. 1987.
Draft Recommendation H.263, ITU-T, "Video Coding for Low Bit Rate Communication", Jun. 29, 1995.
Peter Gerken, "Object-Based Analysis-Synthesis Coding of Image Sequences at Very Low Bit Rates", IEEE Transactions on Circuits and Systems for Video Technology, vol. 4, No. 3, Jun. 1994.
Mark R. Banham, James C. Brailean, Cheuk L. Chan, Aggelos K. Katsaggelos, "Low bit Rate Video Coding Using Robust Motion Vector Regeneration in the Decoder" IEEE Transactions on Image Processing, vol. 3, No. 5 Sep. 1994.
Banham Mark R.
Brailean James C.
Katsaggelos Aggelos K.
Levine Stephen N.
Schuster Guido M.
Motorola
Northwestern University
Peeso Thomas
Stockley Darleen J.
Voeltz Emanuel T.
LandOfFree
Method, device and microprocessor for selectively compressing vi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method, device and microprocessor for selectively compressing vi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method, device and microprocessor for selectively compressing vi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2212762