Abstract
Lateral chromatic aberration (CA) of color cameras has great effects on the imaging quality. This paper presents a novel method to full-field calibrate lateral CA between color channels by using unwrapped phase data. Closed circle sinusoidal fringe patterns having the optimum three-fringe numbers are generated and displayed on a liquid crystal screen consecutively through red, green and blue channels. These closed fringe patterns are captured by a color camera. The wrapped phase and unwrapped phase of each pixel can be calculated by using four-step phase shifting algorithm and optimum three-fringe number method, respectively. The pixel deviations produced by lateral CA are computed by comparing the obtained absolute phase data between red, blue, and green channels in polar coordinate system and calibration is accomplished in Cartesian coordinate system. Lateral CA between color channels of the color camera can be compensated by using the calibrated data. Simulated and experimental results show the validity of the proposed calibration and compensation method.
Original language | English |
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Title of host publication | Optical Design and Testing VII |
Editors | Yongtian Wang, Tina E. Kidger, Kimio Tatsuno |
Publisher | SPIE |
Number of pages | 9 |
Volume | 10021 |
ISBN (Electronic) | 9781510604629 |
ISBN (Print) | 9781510604612 |
DOIs | |
Publication status | Published - 31 Oct 2016 |
Event | SPIE/COS Photonics Asia 2016 - Beijing, China Duration: 12 Oct 2016 → 14 Oct 2016 Conference number: IV https://spie.org/PA16/conferencedetails/optical-metrology-and-inspection?SSO=1 (Link to Conference Details ) |
Publication series
Name | Proceedings of SPIE - The International Society for Optical Engineering |
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Publisher | SPIE |
Volume | 10021 |
ISSN (Print) | 0277-786X |
ISSN (Electronic) | 1996-756X |
Conference
Conference | SPIE/COS Photonics Asia 2016 |
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Country/Territory | China |
City | Beijing |
Period | 12/10/16 → 14/10/16 |
Internet address |
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