Xi-Sheng Fang

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Specular reflections and interreflections produce strong highlights in brightness images. These highlights can cause vision algorithms for segmentation, shape from shading, binocular stereo, and motion estimation to produce erroneous results. A technique is developed for separating the specular and diffuse components of reflection from images. The approach(More)
Specular reflections and interreflections produce strong highlights in brightness images. These highlights can cause vision algorithms, such as, segmentation, shape from shading, binocular stereo, and motion detection to produce erroneous results. We present an algorithm for separating the specular and d i f i s e components of reflection from images. The(More)
Aberrant expression of miR-148b has been found in several types of cancer, but its expression and potential biologic role in non-small cell lung cancer (NSCLC) are still largely unknown. Here, we found that miR-148b was commonly under-expressed in human non-small celllung cancer (NSCLC) specimens and cell lines. The overexpression of miR-148b dramatically(More)
There is increasing interest in the recovery of generalized cylinders (GCs) with curved spines. However, existing formulations of such GCs, for example those based on the Frenet-Serret frame or the tube model, suuer serious drawbacks: discontinuities, a lack of expressive power, \narrowing" in the plane normal to the spine, non-intuitive twisting behavior,(More)
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