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Publication Detail
Effects of reduced precision on video motion estimation
  • Publication Type:
    Conference
  • Authors:
    Panovic M, Demosthenous A
  • Publisher:
    Communications Engineering Doctorate Centre, Department of Electronic and Electrical Engineering, University College London
  • Publication date:
    2003
  • Place of publication:
    London, UK
  • Published proceedings:
    London Communications Symposium: University College London, 8th-9th September 2003: The Annual London Conference on Communications
  • ISBN-10:
    0953886328
  • Status:
    Published
  • Language:
    English
  • Keywords:
    ALGORITHM, communication, convolutional, decoding
Abstract
This paper investigates the effects of estimating motion between video frames at reduced precision (< 8-bits). Simulation results show that for common video sequences, the mean square distance of 6-bits compares very favourably to the mean absolute distance of 8-bits used in digital realisations. Since the mean square distance lends itself particularly well to implementation using analogue CMOS circuits, the reduced precision of 6-bits offers potential for the implementation of small, low power, analogue motion estimators for portable video systems.
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