Compensation Of Spectral Mismatch To Enhance Wrgb Demosaicking

• doi: 10.1109/ICIP.2015.7350761
• title: Compensation of spectral mismatch to enhance WRGB demosaicking
• publisher: IEEE
• isbn: 978-1-4799-8338-4
• issn:
• rank: 1977
• access_type: LOCKED
• content_type: Conferences
• abstract: The presence of spectral mismatch between the components of a WRGB color filter array severely affects the performance of demosaicking. This paper presents a novel method that compensates for the spectral mismatch and greatly enhances the accuracy of R, G, and B interpolation. The method is tested on a two-megapixel WRGB CMOS image sensor. The results show that the proposed method brings the performance of WRGB demosaicking to an unprecedented level competitive with that of the state-of-the-art Bayer demosaicking.
• article_number: 7350761
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7350761
• html_url: https://ieeexplore.ieee.org/document/7350761/
• abstract_url: https://ieeexplore.ieee.org/document/7350761/
• publication_title: 2015 IEEE International Conference on Image Processing (ICIP)
• conference_location: Quebec City, QC, Canada
• conference_dates: 27-30 Sept. 2015
• publication_number: 7328364
• is_number: 7350743
• publication_year: 2015
• publication_date: 27-30 Sept. 2015
• start_page: 68
• end_page: 72
• citing_paper_count: 6
• citing_patent_count: 0
• download_count: 187
• insert_date: 20151210
• index_terms:
  • ieee_terms:
    • Interpolation
    • Sensitivity
    • Image color analysis
    • CMOS integrated circuits
    • Signal to noise ratio
    • Semiconductor device modeling
    • Upper bound
  • author_terms:
    • Color filter array
    • CMOS image sensor
    • spectral response
    • white pixel
    • demosaicking
  • dynamic_index_terms:
    • Spectral Mismatch
    • Image Sensor
    • Camera Sensor
    • Presence Of Mismatch
    • Linear Model
    • Linear Regression Model
    • Upper Bound
    • Low-pass
    • Low-pass Filter
    • Power Spectral Density
    • Spectral Function
    • Color Difference
    • Fusion Method
    • Fusion Technology
    • Median Filter
    • Spectral Sensitivity
    • Mismatch Effect
    • White Pixels
    • Interpolation Error
    • Blue Pixels
    • High Texture
    • Latent Image
    • Offset Estimation
• isbn_formats:
  • format: USB ISBN, value: 978-1-4799-8338-4, isbnType: New-2005
  • format: Electronic ISBN, value: 978-1-4799-8339-1, isbnType: New-2005
• authors:
  • Author Name: Po-Hsun Su
    Affiliation: National Taiwan University
    Author URL: https://ieeexplore.ieee.org/author/37085640239
    ID: 37085640239
    Order: 1
    Author Affiliations:
    • National Taiwan University
  • Author Name: Po-Chang Chen
    Affiliation: Himax Imaging Inc.
    Author URL: https://ieeexplore.ieee.org/author/37085654894
    ID: 37085654894
    Order: 2
    Author Affiliations:
    • Himax Imaging Inc.
  • Author Name: Homer H. Chen
    Affiliation: National Taiwan University
    Author URL: https://ieeexplore.ieee.org/author/37293460700
    ID: 37293460700
    Order: 3
    Author Affiliations:
    • National Taiwan University

Image Sensor

• sensor_type: CMOS
• resolution: 2 megapixels
• dynamic_range: Not specified
• pixel_size: Not specified
• dark_current: Not specified

Optical Data

• focal_length: Not specified
• aperture: Not specified
• field_of_view: Not specified
• distortion: Not specified

Performance Metrics

• signal_to_noise_ratio: SNR values for WRGB: 19.58 (Luminance), 18.86 (Red), 19.76 (Green), 17.35 (Blue)

Applications & Benefits

• cell_imaging: Improved low light sensitivity enhancing applications in mobile devices and other areas.
• benefits: The proposed spectral mismatch compensation enhances WRGB demosaicking performance and retains the SNR advantage of WRGB CFA.

Supporting Organizations

• supported_by: National Taiwan University, Himax Imaging Inc.

Manuscript Details

• publication_date: 27-30 Sept. 2015

Relevancy Score

• score: 9
• missing_fields:
  • dynamic_range
  • pixel_size
  • dark_current
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • frame_rate
  • sensitivity
  • shutter_speed
  • power_consumption
  • noise

Processed JSON Filename

request_32439550-1b37-4eb2-9fc4-9c9ecd35abef-compensation_of_spectral_mismatch_to_enhance_wrgb_demosaicking.json