Region-based all-in-focus light field rendering

Authors:
Goran Petrovic;Aneez Kadermohideen Shahulhameed;Sveta Zinger;Peter H. N. De With
Affiliations:
Eindhoven University of Technology, Eindhoven, The Netherlands;Eindhoven University of Technology, Eindhoven, The Netherlands;Eindhoven University of Technology, Eindhoven, The Netherlands;Eindhoven University of Technology, Eindhoven, The Netherlands and CycloMedia Technology, Waardenburg, The Netherlands
Venue:
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Year:
2009

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Abstract

Light field rendering is an approach to synthesize virtual views of a scene from a set of original images. When minimizing the number of images for rendering, the light field may become under-sampled, leading to aliasing artifacts. To render an under-sampled light field in high quality and without aliasing artifacts is a challenge. We present a light field rendering algorithm with region-based focus to create all-in-focus virtual views. Our algorithm was compared to: (a) ground truth images and (b) a state-of-the-art technique for rendering under-sampled light fields. Extensive rendering experiments confirm that our algorithm provides visible quality improvement, quantified as about 10% RMSE reduction. However, the subjective improvement is larger and it produces images comparable to the ground truth. This algorithm contributes to practical applications of light field rendering, such as image generation in stereoscopic displays and Free-Viewpoint Video (FVV).