Generation of arbitrarily focused images by using multiple differently focused images

Kazuya Kodama; Kiyoharu Aizawa; Mitsutoshi Hatori

doi:10.1117/12.263210

10 January 1997 Generation of arbitrarily focused images by using multiple differently focused images

Kazuya Kodama, Kiyoharu Aizawa, Mitsutoshi Hatori

Proceedings Volume 3024, Visual Communications and Image Processing '97; (1997) https://doi.org/10.1117/12.263210
Event: Electronic Imaging '97, 1997, San Jose, CA, United States

Abstract

In the paper, we propose a novel method of arbitrarily focused image acquisition using multiple differently focused images. First, we describe our previous select-and-merge method for all-focused image acquisition. We can get god results by using this method but it's not easy to extend this method for generating arbitrarily focused images. Then, based on the assumption that depth of the scene changes stepwise, we derive a formula for reconstruction between the desired arbitrarily focused image and multiple acquired images; we can reconstruct the arbitrarily focused image by iterative use of the formula. We also introduce coarse-to- fine estimation of PSFs of the acquired images. We show we can reconstruct arbitrarily focused images for a natural scene. In other words, we can simulate virtual cameras and synthesize images focused on arbitrarily depths.

Citation Download Citation

Kazuya Kodama, Kiyoharu Aizawa, and Mitsutoshi Hatori "Generation of arbitrarily focused images by using multiple differently focused images", Proc. SPIE 3024, Visual Communications and Image Processing '97, (10 January 1997); https://doi.org/10.1117/12.263210

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KEYWORDS

Point spread functions

Cameras

Image segmentation

Image fusion

Image acquisition

Error analysis

Radium

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