Title :
Motion estimation using a computation-constrained criterion
Author :
Bhaskaran, Vasudev ; Konstantinides, K. ; Natarajan, Balas
Author_Institution :
Hewlett-Packard Co., Palo Alto, CA, USA
Abstract :
One of the most memory-intensive and power consuming operations in videoconferencing is motion estimation. We review several motion-estimation strategies that employ block matching criteria with low computational complexity. We also introduce a matching criterion that explicitly incorporates the computation load of the host processor. This modified cost function can lead to very low computation complexity for the motion-estimation process. Performance comparisons using the various matching criteria within a H.263 video coder are presented
Keywords :
computational complexity; image classification; image matching; motion estimation; teleconferencing; video coding; H.263 video coder; block matching; computation load; computation-constrained criterion; host processor; low computational complexity; memory-intensive operations; modified cost function; motion estimation; performance comparisons; pixel difference classification; power consuming operations; videoconferencing; Algorithm design and analysis; Central Processing Unit; Computer applications; Home appliances; Laboratories; Motion estimation; Multimedia systems; Redundancy; Teleconferencing; Video coding;
Conference_Titel :
Digital Signal Processing Proceedings, 1997. DSP 97., 1997 13th International Conference on
Conference_Location :
Santorini
Print_ISBN :
0-7803-4137-6
DOI :
10.1109/ICDSP.1997.628030
