James Leger, Editor-in-Chief
Xin Jin, Li Liu, Yanqin Chen, and Qionghai Dai
Xin Jin,* Li Liu, Yanqin Chen, and Qionghai Dai
Key lab of Broadband Network and Multimedia, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
*Corresponding author: email@example.com
This paper derives a mathematical point spread function (PSF) and a depth-invariant focal sweep point spread function (FSPSF) for plenoptic camera 2.0. Derivation of PSF is based on the Fresnel diffraction equation and image formation analysis of a self-built imaging system which is divided into two sub-systems to reflect the relay imaging properties of plenoptic camera 2.0. The variations in PSF, which are caused by changes of object’s depth and sensor position variation, are analyzed. A mathematical model of FSPSF is further derived, which is verified to be depth-invariant. Experiments on the real imaging systems demonstrate the consistency between the proposed PSF and the actual imaging results.
© 2017 Optical Society of America
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Table 1 Geometric parameters of the self-built imaging system.
Table 2 The variation settings of object’s depth and sensor position.
Table 3 Geometric parameters of the imaging system with a microlens array.
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Geometric parameters of the self-built imaging system.
The variation settings of object’s depth and sensor position.
Geometric parameters of the imaging system with a microlens array.