An efficient method for the fusion of light field refocused images

Yingqian Wang; Jungang Yang; Chao Xiao; Wei An

doi:10.1117/12.2302687

10 April 2018 An efficient method for the fusion of light field refocused images

Yingqian Wang, Jungang Yang, Chao Xiao, Wei An

Proceedings Volume 10615, Ninth International Conference on Graphic and Image Processing (ICGIP 2017); 1061536 (2018) https://doi.org/10.1117/12.2302687
Event: Ninth International Conference on Graphic and Image Processing, 2017, Qingdao, China

Abstract

Light field cameras have drawn much attention due to the advantage of post-capture adjustments such as refocusing after exposure. The depth of field in refocused images is always shallow because of the large equivalent aperture. As a result, a large number of multi-focus images are obtained and an all-in-focus image is demanded. Consider that most multi-focus image fusion algorithms do not particularly aim at large numbers of source images and traditional DWT-based fusion approach has serious problems in dealing with lots of multi-focus images, causing color distortion and ringing effect. To solve this problem, this paper proposes an efficient multi-focus image fusion method based on stationary wavelet transform (SWT), which can deal with a large quantity of multi-focus images with shallow depth of fields. We compare SWT-based approach with DWT-based approach on various occasions. And the results demonstrate that the proposed method performs much better both visually and quantitatively.

Citation Download Citation

Yingqian Wang, Jungang Yang, Chao Xiao, and Wei An "An efficient method for the fusion of light field refocused images", Proc. SPIE 10615, Ninth International Conference on Graphic and Image Processing (ICGIP 2017), 1061536 (10 April 2018); https://doi.org/10.1117/12.2302687

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