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Motion compensated video decoding method and system for decoding a coded video signal using spatial and temporal filtering

Patent 5742344 Issued on April 21, 1998. Estimated Expiration Date: Icon_subject April 3, 2016. Estimated 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.

Patent References

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Spatio-temporal sub-sampling of digital video signals representing a succession of interlaced or sequential images, transmission of high-definition television images, and emission and reception stages for such a system
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Arrangement for estimating motion in television pictures
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Motion compensation for interlaced digital television signals
Patent #: 5093720
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Video signal decompression apparatus for independently compressed even and odd field data
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Inventors

Application

No. 626969 filed on 04/03/1996

US Classes:

375/240.15, Bidirectional348/699Motion vector generation

Examiners

Primary: Tung, Bryan

Attorney, Agent or Firm

Foreign Patent References

  • 3-226193 JP. 10/19/1991

International Class

H04N 007/32

Foreign Application Priority Data

1991-05-31 JP

Abstract

A video coding apparatus comprising a memory for storing a coded picture signal used as a reference picture signal, a vector detecting circuit for detecting, from plural field picture signals or plural frame picture signals which are read out from the memory and the reference picture signals, an optimum motion regarding a picture to be coded, a prediction signal producing circuit for subjecting a spatial-temporal filtering to a reference picture designated by the optimum motion vector to produce a prediction signal, and a coding circuit for coding the to-be coded picture signal on the basis of the prediction signal.

Other References

  • 1991 Spring National Convention of the Institute of Electronics, Information and Communication Engineers, p.7-64, Mar. 26-29, 1991, Hirofumi Nishikawa, et al., "A Study on Frame/Field Motion Compensation for Storage Media" (with English translation)
  • PCSJ'90, pp. 175-177, Oct. 1990, Yukitoshi Tuboi, et al., "Adaptive Line Interpolated Inter-Field Motion Compensation Method"
  • IEEE Trans. CS. vol. 38, pp. 140-142, Jan. 1991, Feng-Ming Wang, et al., "High Quality Coding of the Even Fields Based on the Odds of Interlaced Video Sequences"
  • PCSJ'92, pp. 193-196, T. Odaka, et al., "An Adaptive Motion Compensated Prediction Method for Interlaced Image" (1992) (Oct.
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