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基于全景照片复原的点云重建算法研究 被引量:2
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作者 余龙江 申闫春 《计算机仿真》 北大核心 2022年第3期230-233,267,共5页
针对数字孪生点云数据不适合直接浏览,并且难以直接用于三维网格模型重建的问题,提出了一种将场景稠密点云转换到多组全景照片和全景深度图,并合并到现有三维重建流程的方法。算法可以将现有激光扫描设备输出的点云数据采样和处理为连续... 针对数字孪生点云数据不适合直接浏览,并且难以直接用于三维网格模型重建的问题,提出了一种将场景稠密点云转换到多组全景照片和全景深度图,并合并到现有三维重建流程的方法。算法可以将现有激光扫描设备输出的点云数据采样和处理为连续的RGB颜色和深度图像数据,并与照片的重建流程、及连续深度图的重建流程相结合。经过实测表明,方法对重建效果有明显的提升,并且对具体的三维重建流程和算法没有限制,可以广泛应用到各种三维重建相关的具体应用中。 展开更多
关键词 三维重建 全景深度图 数字孪生
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A valid method of calculating virtual scene depth
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作者 全红艳 张田文 蔺想红 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2005年第6期626-629,共4页
A valid method of virtual scene depth calculating is put forward. In this method cameras rotate in three different viewpoints in the plane and we calculate the depth of panorama using three stitching cylinder panorama... A valid method of virtual scene depth calculating is put forward. In this method cameras rotate in three different viewpoints in the plane and we calculate the depth of panorama using three stitching cylinder panoramas. In the investigation, the column of panorama is regarded as a slot image. Using the conic intersected by the epipolar plane and the cylinder, we can obtain the pel-pendicularity disparity. In order to obtain dense correspondence fast and accurately, a new method of obtaining horizontal disparity using depth continuity is also put forward. It converts the problem of panorama dense correspondence to the problem of searching points in the conic. The occlusion problem is dealt with using three cylinders in the depth calculation. It is verified that this method is convenient, useful and efficient in calculating the depth of a virtual scene. 展开更多
关键词 depth calculation epipolar plane DISPARITY PANORAMA
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