Variational Multiframe Stereo in the Presence of Specular Reflections
نویسندگان
چکیده
We consider the problem of estimating the surface of an object from a calibrated set of views under the assumption that the reflectance of the object is non-Lambertian. In particular, we consider the case when the object presents sharp specular reflections. We pose the problem within a variational framework and use fast numerical techniques to approach the local minimum of a regularized cost functional.
منابع مشابه
Multibaseline Stereo in the Presence of Specular Reflections
We address the problem of accurate depth estimation using multibaseline stereo in the presence of specular reflections. Specular reflections can cause the intensity and color of corresponding points to change dramatically according to different viewpoints, thus producing severe matching errors for various stereo algorithms. In this paper, we propose a new method to deal with this problem by tre...
متن کاملComputation of stereo disparity for space materials
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...
متن کاملVariational Specular Separation Using Color and Polarization
In this paper, we propose a method that separates specular reflections from polarized color images. With line constraints in RGB color space and spatial domain information, we used a Variational energy minimization approach to restore diffuse reflections. With anisotropic smoothing, our method preserves the shape of textures and successfully separates specular reflections. Also, saturation of s...
متن کاملDiffuse-Specular Separation and Depth Recovery from Image Sequences
Specular reflections present difficulties for many areas of computer vision such as stereo and segmentation. To separate specular and diffuse reflection components, previous approaches generally require accurate segmentation, regionally uniform reflectance or structured lighting. To overcome these limiting assumptions, we propose a method based on color analysis and multibaseline stereo that si...
متن کاملKey characteristics of specular stereo.
Because specular reflection is view-dependent, shiny surfaces behave radically differently from matte, textured surfaces when viewed with two eyes. As a result, specular reflections pose substantial problems for binocular stereopsis. Here we use a combination of computer graphics and geometrical analysis to characterize the key respects in which specular stereo differs from standard stereo, to ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2002