| Paper: | IMDSP-P9.7 | ||
| Session: | Filtering, Interpolation and Superresolution | ||
| Time: | Wednesday, May 17, 16:30 - 18:30 | ||
| Presentation: | Poster | ||
| Topic: | Image and Multidimensional Signal Processing: Image Filtering | ||
| Title: | Free Viewpoint, Iris and Focus Image Generation by Using a Three-Dimensional Filtering Based on Frequency Analysis of Blurs | ||
| Authors: | Kazuya Kodama, Hiroshi Mo, National Institute of Informatics, Japan; Akira Kubota, Tokyo Institute of Technology, Japan | ||
| Abstract: | This paper describes a method of image generation based on transformation integrating certain sequences of multiple differently focused images. First, we assume that a scene is defocused by a geometrical blurring model. Then we combine spatial frequencies of the scene and the sequence with a 3-D convolution filter that expresses how the scene is defocused in the sequence. The filter can be represented with a linear combination of ray-sets through each point of the lens. Based on the relation, in the 3-D frequency domain we extract each ray-set from the filter as certain frequency components and merge them to reconstruct various filters that can generate images with different viewpoints and blurs. | ||
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