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In this paper, we address the boundary mismatch problem between a color image and a corresponding depth image for depth-image-based rendering (DIBR) and propose an edge dependent preprocessing method. Due to the mismatch problem, synthesized views without preprocessing generate both separation and loss of foreground objects, which result in serious visual artifacts. We first analyze each condition...
Radial lens distortion occurs when low-cost cameras or cameras with wide-angle or fish-eye lens are used. The line-based approach is based on the property that straight lines in the 3D world must be straight in 2D images; it estimates a radial lens distortion parameter by finding curved lines in the 2D image which are straight lines in 3D world. To estimate the parameter more accurately, a conventional...
Chromatic aberration is a form of distortion in color optical devices that produces undesirable color fringes along borders within images. In this paper, we propose a novel method for detecting and eliminating chromatic aberration using image processing. We first analyze the color difference behavior around edges that do not show chromatic aberration and propose a range limitation property for edges...
Recently, a superplastic damping device, which is using Zn-22wt.% Al alloys with an ultra-fine (nanometer order) grain size, has been put into practical use for a high-rise building. For the purpose of the development and mass-production of the damping devices for a general residence, we carried out an investigation about the design of the most appropriate damper's shape and the capability of superplastic...
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