Mr. Tsubasa Munezawa Profile

Tsubasa Munezawa

at Nagoya Institute of Technology

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Proceedings Article | 22 March 2019 Paper

A study on moving image noise removal using 3D and time-domain total variation regularization method

Tsubasa Munezawa, Tomio Goto, Satoshi Hirano, Son Lam Phung

Proceedings Volume 11049, 1104913 (2019) https://doi.org/10.1117/12.2521353

KEYWORDS: Image processing, 3D image processing, Super resolution, Cameras, Video, Surveillance, Video surveillance, Image resolution

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In recent years, in order to display hi-vision broadcast the next generation displays, super resolution techniques for improving image resolution are demanded. In addition, with the spread of digital cameras and smartphones, people have more opportunities to handle camera images. In particular, images of surveillance cameras are required to obtain highdefinition output by removing noise. In this paper, in order to avoid the adverse effect of image quality deterioration when emphasizing noise mixed image which is a problem of super resolution processing, we examine a noise removal method before super resolution processing. In our proposed method, Total Variation regularization, which is decomposed into structure and texture components, is extended in direction of time axis. As a result, moving images can be decomposed into structure moving images and texture moving images. In theory, it is thought that noise components with large value of Total Variation is shift to texture components. Furthermore, we aim for separation of texture components and noise, and aim for acquisition of high-definition moving images. We verify the performance of our proposed method by comparing it with the BM3D method, which is regarded as the highest performance for moving image noise removal processing.

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