Motion-compensated spatial-temporal filtering for noisy CFA sequence

Min Seok Lee, Sang Wook Park, Moon Gi Kang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Spatial-temporal filters have been widely used in video denoising module. The filters are commonly designed for monochromatic image. However, most digital video cameras use a color filter array (CFA) to get color sequence. We propose a recursive spatial-temporal filter using motion estimation (ME) and motion compensated prediction (MCP) for CFA sequence. In the proposed ME method, we obtain candidate motion vectors from CFA sequence through hypothetical luminance maps. With the estimated motion vectors, the accurate MCP is obtained from CFA sequence by weighted averaging, which is determined by spatial-temporal LMMSE. Then, the temporal filter combines estimated MCP and current pixel. This process is controlled by the motion detection value. After temporal filtering, the spatial filter is applied to the filtered current frame as a post-processing. Experimental results show that the proposed method achieves good denoising performance without motion blurring and acquires high visual quality.

Original languageEnglish
Title of host publicationProceedings of SPIE-IS and T Electronic Imaging - Image Processing
Subtitle of host publicationAlgorithms and Systems X; and Parallel Processing for Imaging Applications II
DOIs
Publication statusPublished - 2012
EventImage Processing: Algorithms and Systems X; and Parallel Processing for Imaging Applications II - Burlingame, CA, United States
Duration: 2012 Jan 232012 Jan 25

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8295
ISSN (Print)0277-786X

Other

OtherImage Processing: Algorithms and Systems X; and Parallel Processing for Imaging Applications II
CountryUnited States
CityBurlingame, CA
Period12/1/2312/1/25

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Lee, M. S., Park, S. W., & Kang, M. G. (2012). Motion-compensated spatial-temporal filtering for noisy CFA sequence. In Proceedings of SPIE-IS and T Electronic Imaging - Image Processing: Algorithms and Systems X; and Parallel Processing for Imaging Applications II [82951D] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8295). https://doi.org/10.1117/12.907564