Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2006-07-04
2006-07-04
Le, Vu (Department: 2613)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240160, C375S240290
Reexamination Certificate
active
07072397
ABSTRACT:
The present invention involves a system and method for performing motion estimation. For each candidate motion vector, encoding distortion is determined between a macroblock and a reconstructed macroblock by determining discrete cosine transform coefficients of the macroblock and quantizing the discrete cosine transform coefficients. An estimate unit determines the length of the bit stream required to encode the quantized discrete cosine transform coefficients along with the mode information bits including mode and motion vector information. The reconstructed macroblock is determined based on the quantized discrete cosine transform coefficients. A bit-rate term based on the length of the bit-rate stream is determined and included in the encoding distortion. The candidate motion vector which minimizes the encoding distortion of the macroblock is chosen to be the motion vector for the macroblock.
REFERENCES:
patent: 5883979 (1999-03-01), Beretta et al.
patent: 6043844 (2000-03-01), Bist et al.
Yuen-Wen Lee, Rabab Ward, Faousi Kossentini, Mark J. T. Smith. “Very Low Rate DCT-Based Video Coding Using Dynamic VQ,”Proceedings Of The International Conference On Image Processing(ICIP), New York, IEEE, 1996, pp. 669-672.
Wilson C. Chung, Faouzi Kossentini, and Mark J. T. Smith. “An Efficient Motion Estimation Technique Based On A Rate-Distortion Criterion,”1996 IEEE International Conference On Acoustics, Speech, And Signal Processing Conference Proceedings, Atlanta, GA, USA, 7-10 M, pp. 1926-1929, vol. 4.
T.H. Kewh, F. Eryurtlu, A.M. Kondoz. “Closed-Loop Motion Compensation For Video Coding Standards”IEE Proceedings: Vision, Image and Signal Processing, GB, Institution of Electrical Engineers, vol. 144, No. 4, Aug. 1, 1997, pp. 227-232.
Guido M. Schuster, Aggelos K. Katsaggelos. “A Theory For the Optimal Bit Allocation Between Displacement Vector Field And Displaced Frame Difference,”IEEE Journal On Selected Areas in Communications, vol. 15, No. 9, pp. 1739-1751, Dec. 1997.
Faouzi Kossentini, Yuen-Wen Lee, Mark J. T. Smith and Rabab K. Ward. “Predictive RD Optimized Motion Estimation For Very Low Bit-Rate Video Coding,”IEEE Journal On Selected Areas in Communications, New York, vol. 15, No. 9, Dec. 1, 1997, pp. 1752-1762.
Stephani Y. Hu, Michael C. Chen, and Alan N. Willson, Jr. “A Fast Rate-Distortion Optimization Algorithm For Motion-Compensated Video Coding,”IEEE International Symposium On Circuits And Systems, US, New York, NY: IEEE, 1997, pp. 1349-1352.
Dzung T. Hoang, Philip M. Long, and Jeffrey Scott Vitter. “Efficient Cost Measures For Motion Estimation At Low Bit Rates,”IEEE Transactions On Circuits and Systems For Video Technology, US, IEEE Inc. New York, vol. 8, No. 4, Aug. 1, 1998, pp. 488-500.
Yuen-Wen Lee, Faouzi Kossentini, Rabab Ward, Mark Smith. “Towards MPEG4: An Improved H.263-Based Video Coder,”Signal Processing: Imaging Communication, NL, Elsevier Science Publishers, Amsterdam, vol. 10, No. 1-3, pp. 143-158, Jul. 1, 1997.
Parthasarathy Sriram and Subramania Sudharsanan. “Entropy Constrained Motion Estimation: Algorithm and Implementation”;Multimedia Hardware Architectures 1998, San Jose, CA, USA, Jan. 29-30, 1998, vol. 3311, pp. 99-107.
Jiandong Shen and Wai-Uip Chan. “A Non-Parametric Method For Fast Joint Rate-Distortion Optimization Of Motion Estimation And DFD Coding”;Proceedings 1998 International Conference On Image Processing, Proceedings Of IPCIP '98 International Conference On Image Processing, Chicago, IL, Oct. 4-7, 1998, pp. 915-919 vol. 3.
Pattabiraman Subramanian, Dariusz Blasiak, Jiandong Shen and Wai-Yip Chan. “Encoder Optimization In An Extended H.263 Framework”;Conference Record Of The Thirty-First Asilomar Conference On Signals, Systems And Computers, Pacific Grove, CA, USA, pp. 209-213 vol. 1.
Sriram Parthasarathy
Sudharsanan Subramania
Le Vu
Sun Microsystems Inc.
Zagorin O'Brien Graham LLP
LandOfFree
Optimal encoding of motion compensated video does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optimal encoding of motion compensated video, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimal encoding of motion compensated video will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3545162