Joint demosaicking and integer-ratio downsampling algorithm for color filter array image

Sangyoon Lee, Moon Gi Kang

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

Abstract

This paper presents a joint demosacking and integer-ratio downsampling algorithm for color filter array (CFA) images. Color demosaicking is a necessary part of image signal processing to obtain full color image for digital image recording system using single sensor. Also, such as mobile devices, the obtained image from sensor has to be downsampled to be display because the resolution of display is smaller than that of image. The conventional method is "Demosaicking first and downsampling later". However, this procedure requires a significant hardware resources and computational cost. In this paper, we proposed a method in which demosaicking and downsampling are working simultaneously. We analyze the Bayer CFA image in frequency domain, and then joint demosaicking and downsampling with integer-ratio scheme based on signal decomposition of luma and chrominance components. Experimental results show that the proposed method produces the high quality performance with much lower computational cost and less hardware resources.

Original languageEnglish
Title of host publicationProceedings of SPIE-IS and T Electronic Imaging - Image Processing
Subtitle of host publicationAlgorithms and Systems XIII
PublisherSPIE
Volume9399
ISBN (Electronic)9781628414899
DOIs
Publication statusPublished - 2015 Jan 1
EventImage Processing: Algorithms and Systems XIII - San Francisco, United States
Duration: 2015 Feb 102015 Feb 11

Other

OtherImage Processing: Algorithms and Systems XIII
CountryUnited States
CitySan Francisco
Period15/2/1015/2/11

Fingerprint

Color Filter Array
integers
Color
color
filters
Integer
Computational Cost
Image recording
Hardware
Sensor
Resources
Sensors
Bayes
Color Image
Digital Image
Mobile devices
resources
Mobile Devices
hardware
Frequency Domain

All Science Journal Classification (ASJC) codes

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

Cite this

Lee, S., & Kang, M. G. (2015). Joint demosaicking and integer-ratio downsampling algorithm for color filter array image. In Proceedings of SPIE-IS and T Electronic Imaging - Image Processing: Algorithms and Systems XIII (Vol. 9399). [93990A] SPIE. https://doi.org/10.1117/12.2083177
Lee, Sangyoon ; Kang, Moon Gi. / Joint demosaicking and integer-ratio downsampling algorithm for color filter array image. Proceedings of SPIE-IS and T Electronic Imaging - Image Processing: Algorithms and Systems XIII. Vol. 9399 SPIE, 2015.
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Lee, S & Kang, MG 2015, Joint demosaicking and integer-ratio downsampling algorithm for color filter array image. in Proceedings of SPIE-IS and T Electronic Imaging - Image Processing: Algorithms and Systems XIII. vol. 9399, 93990A, SPIE, Image Processing: Algorithms and Systems XIII, San Francisco, United States, 15/2/10. https://doi.org/10.1117/12.2083177

Joint demosaicking and integer-ratio downsampling algorithm for color filter array image. / Lee, Sangyoon; Kang, Moon Gi.

Proceedings of SPIE-IS and T Electronic Imaging - Image Processing: Algorithms and Systems XIII. Vol. 9399 SPIE, 2015. 93990A.

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

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Lee S, Kang MG. Joint demosaicking and integer-ratio downsampling algorithm for color filter array image. In Proceedings of SPIE-IS and T Electronic Imaging - Image Processing: Algorithms and Systems XIII. Vol. 9399. SPIE. 2015. 93990A https://doi.org/10.1117/12.2083177