Imaging Components, Systems, and Processing

Image rotation-elimination based on a retina-like sensor

[+] Author Affiliations
Fengmei Cao, Yabin Lin, Tingzhu Bai

Beijing Institute of Technology, School of Optoelectronics, Ministry of Education of China, Key Laboratory of Photoelectronic Imaging Technology and System, No. 5, Zhongguancun South Street, Haidian District, Beijing 100081, China

Fan Wang

Xi’an Technological University, No. 2, Xuefu Middle Road, Weiyang District, Xi'an City, Shaanxi Province 710021, China

Opt. Eng. 54(12), 123105 (Dec 14, 2015). doi:10.1117/1.OE.54.12.123105
History: Received August 29, 2015; Accepted November 5, 2015
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Abstract.  The pixels of a retina-like sensor are arranged in concentric rings, and the output image is given in log-polar coordinates. Thus, additional residual errors will not be produced when the output image is rotated. Therefore, retina-like sensors have obvious advantages and many prospects for applications in the fields of image rotation and rapid image rotation-elimination. In this study, a theory concerning the image rotation of a retina-like sensor is proposed, and a solution based on the theory is presented and realized for eliminating image rotation caused by camera rotation. The camera rotation angle is obtained using a microelectromechanical systems digital accelerometer and gyroscope; only the readout sequence of each row from static random-access memory must be changed to achieve image rotation-elimination. Several image rotation-elimination experiments have been performed which show that the proposed solution is simple, accurate, and rapid. This rapid image rotation-elimination method can be used in fields that require higher image rotation-elimination processing speeds.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Topics

Retina ; Sensors

Citation

Fengmei Cao ; Yabin Lin ; Tingzhu Bai and Fan Wang
"Image rotation-elimination based on a retina-like sensor", Opt. Eng. 54(12), 123105 (Dec 14, 2015). ; http://dx.doi.org/10.1117/1.OE.54.12.123105


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