翻訳と辞書 Words near each other ・ Image texture ・ Image theatre ・ Image tracing ・ Image translation ・ Image trigger ・ Image United ・ Image Universe ・ Image viewer ・ Image warping ・ Image Works ・ Image Xplorer ・ Image Zoom ・ Image-based flow visualization ・ Image-based lighting ・ Image-based meshing ・ Image-based modeling and rendering ・ Image-forming optical system ・ Image-guided radiation therapy ・ Image-guided surgery ・ Image-Line ・ Image-stabilized binoculars ・ Image3D ・ ImageAmerica ・ ImageApp ・ Imageboard ・ Imageepoch ・ ImageInfo Sky ・ ImageJ ・ Imagekind ・ Imagem Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Image-based modeling and rendering ： ウィキペディア英語版 Image-based modeling and rendering In computer graphics and computer vision, image-based modeling and rendering (IBMR) methods rely on a set of two-dimensional images of a scene to generate a three-dimensional model and then render some novel views of this scene. The traditional approach of computer graphics has been used to create a geometric model in 3D and try to reproject it onto a two-dimensional image. Computer vision, conversely, is mostly focused on detecting, grouping, and extracting features (edges, faces, ''etc.'') present in a given picture and then trying to interpret them as three-dimensional clues. Image-based modeling and rendering allows the use of multiple two-dimensional images in order to generate directly novel two-dimensional images, skipping the manual modeling stage. == Light modeling == Instead of considering only the physical model of a solid, IBMR methods usually focus more on light modeling. The fundamental concept behind IBMR is the plenoptic illumination function which is a parametrisation of the light field. The plenoptic function describes the light rays contained in a given volume. It can be represented with seven dimensions: a ray is defined by its position $(x,y,z)$, its orientation $(\backslash theta,\backslash phi)$, its wavelength $(\backslash lambda)$ and its time $(t)$: $P\; (x,y,z,\backslash theta,\backslash phi,\backslash lambda,t)$. IBMR methods try to approximate the plenoptic function to render a novel set of two-dimensional images from another. Given the high dimensionality of this function, practical methods place constraints on the parameters in order to reduce this number (typically to 2 to 4). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Image-based modeling and rendering」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.