Inverse filters for generation of arbitrarily focused images

Akira Kubota; Kiyoharu Aizawa

doi:10.1117/12.386627

30 May 2000 Inverse filters for generation of arbitrarily focused images

Akira Kubota, Kiyoharu Aizawa

Proceedings Volume 4067, Visual Communications and Image Processing 2000; (2000) https://doi.org/10.1117/12.386627
Event: Visual Communications and Image Processing 2000, 2000, Perth, Australia

Abstract

This paper describes a novel filtering method to reconstruct an arbitrarily focused image from two differently focused images. Based on the assumption that image scene has two layers--foreground and background--, the method uses the linear imaging model of the acquired two differently focused images and the desired image with arbitrary blurring effect manipulated independently in each layer. The linear equation that holds between these images, which is derived from the imaging model, can be formulated as image restoration problem. This paper shows the solution of this problem, completely exists as an inverse filter, and the desired image can be reconstructed only by the linear filtering. As a result, reconstruction with high accuracy and fast processing can be achieved. Experiments using real images are shown.

Citation Download Citation

Akira Kubota and Kiyoharu Aizawa "Inverse filters for generation of arbitrarily focused images", Proc. SPIE 4067, Visual Communications and Image Processing 2000, (30 May 2000); https://doi.org/10.1117/12.386627

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