| 摘要: |
| 提出一种新的基于图像绘制的方法，能高效地利用图形硬件进行加速，避免成像过程中烦人的空洞填补计算,高质量地反映物体表面的三雏凹凸细节及视差变化．该方法首先为源深度图像中每个像素生成一个条状的纹理(条纹理)，即根据一个像素及其邻近像素的深度值，沿着深度方向为该像素插值生成多个具有不同深度值的点，它们一起构成谊像素的条纹理；然后，绘制时利用图形硬件的纹理映射直接处理这些条纹理.由于各个像素的条纹理的集合可以构成源场景的近似连续三维表示,从而大大增强了源深度图像表达三维模型细节的能力，而且成像时不必进行空洞填补的计算.与已有的同类方法相比，新方法的空间需求小，成像速度快，并且成像质量很高． |
| 关键词: 条纹理 纹理映射 基于图像的绘制 加速 图形硬件 |
| DOI： |
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| 基金项目:Suppened by the National Natural Science Foundation of China uder Grant Nos.60373051,60033010,60173022(国家自然科学基金)；the Netional Grand Fundamental Research 973 Progmm of China under Grant No，2002CB312102(国家重点基础研究发展规划(973))：the Research Grant of University of Mscao of China(澳门大学基金资助项目) |
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| Bar Texture Mapping |
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LI Kui-Yu,WANG Wen-Cheng,WU En-Hua
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| Abstract: |
| An image-based rendering method that can successfulty support the representation of 3-D surface details and view motion pasallax is presented．Expensive task of hole-filling is finished beforehand in the preprocessing stage, only tcxtLIre-mapping hardware is employed in the rendering stage for acceleration．For correct representation，each pixel in a parallel projection image with depth is decomposed into several consecutive layers so that a bar texture is generated for that pixel．Since all the bar textures as a whole constitute a continuous 3-D approximation to the scene represented in the original depth image，novel views can be obtained by mapping these bar textures in a from-back-to-fiont order．Experimental results show the new approach can produce high visual qualny and nlns faster than many existing image-based rendering techniques with only moderate storage overhead． |
| Key words: bar texture texUtre mapping image-bescd rendaring acceleration hardware |
