One of the challenges facing computer vision systems used in space is the presence of specular surfaces. Such surfaces lead to several adverse effects when imaged by vision systems such as the creation of reflected “virtual” images of objects due to specular reflections, specular reflection of light from the sun and other sources, and total reflection of any projected illuminants including lase...

In dynamic scenes, relative motion between the object, the observer, and/or the environment projects as dynamic visual information onto the retina (optic flow) that facilitates 3D shape perception. When the object is diffusely reflective, e.g. a matte painted surface, this optic flow is directly linked to object shape, a property found at the foundations of most traditional shape-from-motion (S...

This thesis studies the problem of reproducing the world lighting from a single image of an object covered with random specular microfacets on the surface. Such a reflector can be interpreted as a randomized mapping from the lighting to the image. This intrinsic randomness makes it challenging for humans to interpret the image of a specular surface. We propose a system to solve it algorithmical...

In this paper, we propose an efficient method to separate the diffuse and specular reflection components from a single image. The method is built on the observation that, for diffuse pixels, the intensity ratios between the maximum values and range values (maximums minus minimums) are independent of surface geometry. The specular fractions of the image pixels can then be computed by using the i...

In this paper, a method is proposed to measure the shapes of specular surfaces with one-shot-projection of structured laser patterns. By intercepting the reflection of the reflected laser pattern twice with two diffusive planes, the closed form solution is achieved for each reflected ray. The points on the specular surface are reconstructed by computing the intersections of the incident rays an...

The combinatorial complexity of the region lit up from a point light source inside a simple n-gon with perfectly reeecting edges, after at most k specular reeections was established as O(n 2k) 2]. A lower bound of ((n=k) 2k) was also established, matching the upper bound for any xed k. In a real situation, surfaces may not be perfect mirrors; indeed most surfaces may be non-shiny or rough, caus...

Specular and off-specular neutron reflectometry have been used in a combined approach to study thin polymer films. Our goal this work is illustrate the power of scattering technique probe properties buried interface immiscible bilayers deuterated polystyrene protonated poly(methyl methacrylate) (h-PMMA). The diffuse stemming from these systems discussed relation thermal fluctuations at polymer/...

In this paper, we propose a new reflectance separation model to separate the diffuse and specular reflection components. The model is based on a two-dimensional space called Ch-CV space, which is spanned by maximum chromaticity and the coefficient of variation (CV) of RGB color. The space exhibits a more direct correspondence to diffuse and specular reflection components than the RGB color spac...

Light-field cameras have now become available in both consumer and industrial applications, and recent papers have demonstrated practical algorithms for depth recovery from a passive single-shot capture. However, current lightfield depth estimation methods are designed for Lambertian objects and fail or degrade for glossy or specular surfaces. Because light-field cameras have an array of micro-...