x-Hour Outdoor Photometric Stereo
x-Hour Outdoor Photometric Stereo
复制标题
x 小时户外光度立体
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Jean
中科院分区：
文献类型：
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作者：
Yannick Hold;Jinsong Zhang;Paulo F. U. Gotardo;Jean
虽然光度立体（PS）长期以来一直局限于实验室，但最近人们对应用该技术重建户外物体和场景感兴趣。不幸的是，最成功的户外PS技术通常需要收集数月的数据，或者等待一年中的特定时间。在本文中，我们分析了一天的户外PS产生稳定的正常重建的照明要求，并确定这些要求往往是在不到一整天。特别是，我们表明，正确的一套条件，稳定的PS解决方案，可以观察到在天空中的短时间间隔内，刚刚超过一个小时。这项工作提供了，第一次，详细分析的因素影响的x小时户外光度立体声的性能。
While Photometric Stereo (PS) has long been confined to the lab, there has been a recent interest in applying this technique to reconstruct outdoor objects and scenes. Un-fortunately, the most successful outdoor PS techniques typically require gathering either months of data, or waiting for a particular time of the year. In this paper, we analyze the illumination requirements for single-day outdoor PS to yield stable normal reconstructions, and determine that these requirements are often available in much less than a full day. In particular, we show that the right set of conditions for stable PS solutions may be observed in the sky within short time intervals of just above one hour. This work provides, for the first time, a detailed analysis of the factors affecting the performance of x-hour outdoor photometric stereo.