Full-field calibration and compensation of lateral chromatic aberration based on unwrapped phase

Xiaohong Liu, Shujun Huang, Zonghua Zhang, Feng Gao, Xiangqian Jiang

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

1 Citation (Scopus)

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 languageEnglish
Title of host publicationOptical Design and Testing VII
EditorsYongtian Wang, Tina E. Kidger, Kimio Tatsuno
PublisherSPIE
Number of pages9
Volume10021
ISBN (Electronic)9781510604629
ISBN (Print)9781510604612
DOIs
Publication statusPublished - 31 Oct 2016
EventSPIE/COS Photonics Asia - Beijing, China
Duration: 12 Oct 201614 Oct 2016
Conference number: IV
https://spie.org/PA16/conferencedetails/optical-metrology-and-inspection?SSO=1 (Link to Conference Details )

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
PublisherSPIE
Volume10021
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceSPIE/COS Photonics Asia
CountryChina
CityBeijing
Period12/10/1614/10/16
Internet address

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