Plenoptic Image Motion Deblurring

Chandramouli, Paramanand; Jin, Meiguang; Perrone, Daniele; Favaro, Paolo (2018). Plenoptic Image Motion Deblurring. IEEE transactions on image processing, 27(4), pp. 1723-1734. IEEE 10.1109/TIP.2017.2775062

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We propose a method to remove motion blur in a single light field captured with a moving plenoptic camera. Since motion is unknown, we resort to a blind deconvolution formulation, where one aims to identify both the blur point spread function and the latent sharp image. Even in the absence of motion, light field images captured by a plenoptic camera are affected by a non-trivial combination of both aliasing and defocus, which depends on the 3D geometry of the scene. Therefore, motion deblurring algorithms designed for standard cameras are not directly applicable. Moreover, many state of the art blind deconvolution algorithms are based on iterative schemes, where blurry images are synthesized through the imaging model. However, current imaging models for plenoptic images are impractical due to their high dimensionality. We observe that plenoptic cameras introduce periodic patterns that can be exploited to obtain highly parallelizable numerical schemes to synthesize images. These schemes allow extremely efficient GPU implementations that enable the use of iterative methods. We can then cast blind deconvolution of a blurry light field image as a regularized energy minimization to recover a sharp highresolution scene texture and the camera motion. Furthermore, the proposed formulation can handle non-uniform motion blur due to camera shake as demonstrated on both synthetic and real light field data.

Item Type:

Journal Article (Review Article)

Division/Institute:

08 Faculty of Science > Institute of Computer Science (INF)

UniBE Contributor:

Chandramouli, Paramanand; Jin, Meiguang; Perrone, Daniele and Favaro, Paolo

Subjects:

000 Computer science, knowledge & systems
500 Science > 510 Mathematics

ISSN:

1057-7149

Publisher:

IEEE

Language:

English

Submitter:

Xiaochen Wang

Date Deposited:

29 May 2019 10:38

Last Modified:

29 May 2019 10:38

Publisher DOI:

10.1109/TIP.2017.2775062

BORIS DOI:

10.7892/boris.126539

URI:

https://boris.unibe.ch/id/eprint/126539

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