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- W4386993462 abstract "In this study, we present an improving method to increase an accuracy of the visual hull with a pseudo higher resolution technique for a low resolution image. A pixel of images was separated to 4 subpixels, and each pixel value of the subpixels was calculated from the density gradient surrounding the target pixel. Thus, a subpixelization with a pseudo higher resolution technique was performed. In this study, images of a three-dimensional human shape was taken with 8 cameras virtually. In the first time applying this technique to the images, the obtained silhouette shape was smaller than the actual ones. Also, the visual hull was smaller than the actual shape. On the other hand, in the second time, the silhouette shapes were spread, and then the visual hull was larger than the original shape. The subpixelization technique could smooth the silhouette shape excessively, and it could decrease the essential the contour shape. To increase the reproducibility of the contour line, it could be necessary to modify the subpixelization technique. Also, uniform subpixelization might be useful to improve our method, since the calculation of pixel values should affect contour shapes." @default.
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- W4386993462 date "2022-01-01" @default.
- W4386993462 modified "2023-09-30" @default.
- W4386993462 title "擬似的な画像の高解像度化に伴う視体積の高精度化手法の提案" @default.
- W4386993462 doi "https://doi.org/10.1299/jsmekanto.2022.28.15d28" @default.
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