Noise reduction using multi-frame motion estimation, with outlier rejection and trajectory correction

  • Authors:

  • Siu-Leong Iu;Ephrem C. Wu

  • Affiliations:

  • Panasonic Advanced TV-Video Laboratories, Inc., Burlington, NJ;Panasonic Advanced TV-Video Laboratories, Inc., Burlington, NJ

  • Venue:
  • ICASSP'93 Proceedings of the 1993 IEEE international conference on Acoustics, speech, and signal processing: image and multidimensional signal processing - Volume V
  • Year:
  • 1993

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Abstract

Noise reduction (NR) in image sequences can improve both image quality and performance of subsequent video coding [1]-[4]. This paper proposes a new noise reduction system, MMOT-NR. It consists of a multi-frame block-based motion estimator which employs the least trimmed square (LTS) algorithm [5], a pixel-based trajectory correction unit, an outlier rejection unit, an NR unit, and an NR breakdown detector. Simulation results from HDTV color images are given to demonstrate the effectiveness of this system.