In this paper, we propose a new method for estimating reflection properties of a real object surface from a single specular component image, as well as the light source position. Polarization is used for separating the diffuse and specular reflection components. Different from previous approaches, which heavily assumed both distant viewpoint and illuminant position, our method can work even und...

We propose a universal method to detect the specular Andreev reflection taking simple two dimensional Weyl nodal-line semimetal-superconductor double-junction structure as an example. The quasiclassical quantization conditions are established for energy levels of bound states formed in middle semimetal along closed path. establishment is completely based on intrinsic character specularly reflec...

Introduction Glossy surfaces are everywhere. If you stand in a typical bathroom and look around, you'll see that most of the surfaces surrounding you are lustrous or glossy. Glazed tiles, gleaming faucets, polished basins and plastic shampoo bottles are all peppered with specular highlights. Given that highlights are so common it seems plausible that the visual system might somehow be able to m...

We present a framework for automatic inspection of welding seams based on specular reflections. Therefore, we introduce a novel feature set – called specularity features (SPECs) – describing statistical properties of specular reflections. For classification we use a one-class support-vector approach. The SPECs significantly outperform statistical geometric features and raw pixel intensities, si...

OF THE DISSERTATION Controlling the Appearance of Specular Microstructures

We present coherent speckled x-ray diffraction patterns obtained from a monolayer of surface atoms. We measured both the specular anti-Bragg reflection and the off-specular hexagonal reconstruction peak for the Au(001) surface reconstruction. We observed fluctuations of the speckle patterns even when the integrated intensity appears static. By autocorrelating the speckle patterns, we were able ...

We address the problem of accurate depth estimation using stereo in the presence of specular reeec-tion. Specular reeection is viewpoint dependent and can cause large intensity diierences at corresponding points in stereo images. Hence, mismatches could result causing signiicant depth errors. Our approach seeks to determine a scene independent optimal stereo connguration such that intensity mis...

This paper presents a new Phase Measuring Deflectometry (PMD) method to measure specular object having discontinuous surfaces. A mathematical model is established to directly relate absolute phase and depth, instead of phase and gradient. Based on the model, a hardware measuring system has been set up, which consists of a beam splitter to change the optical path, and two LCD screens to display ...

A method based on cepstral deconvolution technique is proposed for measurement of absorption and scattering coefficients of materials. The reverberation room method standardized by International Organization for Standardization (ISO) is taken as the reference for measurements. Several measurements are conducted in a physically scaled reverberation room and results are evaluated by these two met...