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US Patent 5418617 - Motion compensation using minimum bits per motion block as criterion for block matching

US Patent Issued on May 23, 1995
Estimated Patent Expiration Date: Icon_subject May 23, 2012Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
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Abstract

Apparatus for selecting a block of data in a previous frame to be used as a predicted block for a given block in a current frame in a system that reduces the bit rate by codifying the difference between the predicted block and the given block in a given manner by deriving the differences between the given block in the current frame and a plurality of blocks in the previous frame and selecting as the predicted block that block for which the codification of its differences with the given block requires the least number of bits. The apparatus can also select a predicted block from a number of blocks selected in accordance with ABD or SBD techniques.

Other References

  • Ziegler, "Hierarchical Motion Estimation Using the Phase Correlation Method in 140 Mbit/s HDTV Coding", Proceedings of the Third International Workshop of HDTV, Sep. 1, 1989, pp. 131.sub.]137
  • Thoma et al., "Motion Compensating Interpolation Considering Covered and Uncovered Background", Signal Processing Image Communications, vol. 1, No. 2, Oct. 1989, pp. 191-212
  • Kappagantula et al., "Motion Compensated Interframe Image Prediction", IEEE Transactions on Communications, vol. 33, No. 9, Sep. 1985, pp. 1011-1015
  • Gonzales et al., "DCT Coding for Motion Video Storage Using Adaptive Arithmetic Coding", Signal Processing Image Communication, vol. 2, No. 2, Sep. 1990, pp. 145-154
  • "On Comparing Motion-Interpolation Structures for Video Coding", A. Puri and R. Ararind, Visual Communications and Image Processing '90, SPIE vol. 1360, pp. 1560-1571
  • "MPEG Video Simulation Model Three (SM3)", Simulation Model Editorial Group, Jul. 25, 1990
  • "Advanced Digital Television Description", by The Advanced Television Research Consortium; David Sarnoff Research Center, NBC, North American Philips, Thomson Consumer Electronics, Feb. 27, 199

Inventors

Assignee

Application

No. 742398 filed on 08/08/1991

US Classes:

348/413.1, Including motion vector348/416.1Including motion vector

Examiners

Primary: Oberley, Alvin E.
Assistant: Oh, Minsun

Attorney, Agent or Firm

US Patent References

4562468, Adaptive predictive coding apparatus of television signal
Issued on: 12/31/1985
Inventor: Koga4972260, Apparatus for coding a moving-picture signal
Issued on: 11/20/1990
Inventor: Fujikawa, et al.4999705, Three dimensional motion compensated video coding
Issued on: 03/12/1991
Inventor: Puri5025482, Image transformation coding device with adaptive quantization characteristic selection
Issued on: 06/18/1991
Inventor: Murakami, et al.5093720, Motion compensation for interlaced digital television signals
Issued on: 03/03/1992
Inventor: Krause, et al.5111294Motion compensated interframe encoding system with adaptive quantization
Issued on: 05/05/1992
Inventor: Asai, et al.

International Class

H04N 007/12

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