Accuracy improvement and cost reduction of 3-step search block matching algorithm for video coding

  • Authors:

  • Her-Ming Jong;Liang-Gee Chen;Tzi-Dar Chiueh

  • Affiliations:

  • Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei;-;-

  • Venue:
  • IEEE Transactions on Circuits and Systems for Video Technology
  • Year:
  • 1994

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Abstract

Proposes three modifications on the 3-step hierarchical search for video coding: the multiple-candidate search that improves the estimation accuracy, a method of subsampling that reduces computation and input data amount, and an overlapping strategy to improve the accuracy of a large-area search. Experimental results show that combining these techniques provides high-speed and high-precision motion estimators with reduced on-chip buffers and lower input bandwidth requirements