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The Assumed Light Direction for Perceiving Shape from Shading
Shape-from-shading light-from-above shape perception, Lambertian shading
2016/5/24
Recovering 3D shape from shading is an ill-posed problem that the
visual system can solve only by making use of additional information
such as the position of the light source. Previous research has...
3D modeling of the Weary Herakles statue with a coded structured light system
Herakles cultural heritage structured light laser scanning digitization
2015/8/24
This paper presents the results of a study in which a close-range structured light system is used for the digitization of a cultural heritage object. A Herakles statue, named “Weary Herakles” and loca...
基于动态Light Map的增强现实光照算法
增强现实 光照 动态更新
2009/11/17
为实现增强现实系统中光照的实时准确性，提出一种基于动态Light Map的快速光照算法。该方法通过采集视频图像中校准物体的像素亮度，计算出摄像机的信号放大量和信号偏置，并利用动态更新的Light Map所记录的环境光照信息实现虚、实场景之间的一致光照，且能够适应光照变化的场景。实验结果表明该算法的显示速度能够达到实时交互的帧率。
Illumination Transfer Using Homomorphic Wavelet Filtering and Its Application to Light-Insensitive Face Recognition
Homomorphic Wavelet Filtering Light-Insensitive Face Recognition
2008/12/31
In this paper, we propose a novel homomorphic wavelet filtering based illumination transfer technique to change the dominant lighting of one face image (source face image)to another face image (refere...
Illumination Transfer Using Homomorphic Wavelet Filtering and Its Application to Light-Insensitive Face Recognition
Illumination Transfer Using Homomorphic Wavelet Filtering Its Application Light-Insensitive Face Recognition
2008/9/17
In this paper, we propose a novel homomorphic wavelet filtering based illumination transfer technique to change the dominant lighting of one face image (source face image) to another face image (refer...