Specular highlight
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Single-image SVBRDF capture with a rendering-aware deep network Open
Texture, highlights, and shading are some of many visual cues that allow humans to perceive material appearance in single pictures. Yet, recovering spatially-varying bi-directional reflectance distribution functions (SVBRDFs) from a single…
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Total relighting Open
We propose a novel system for portrait relighting and background replacement, which maintains high-frequency boundary details and accurately synthesizes the subject's appearance as lit by novel illumination, thereby producing realistic com…
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Rendering specular microgeometry with wave optics Open
Simulation of light reflection from specular surfaces is a core problem of computer graphics. Existing solutions either make the approximation of providing only a large-area average solution in terms of a fixed BRDF (ignoring spatial detai…
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Surface normal estimation of black specular objects from multiview polarization images Open
Polarization is a phenomenon that cannot be observed by the human eye, but it provides rich information regarding scenes. The proposed method estimates the surface normal of black specular objects through polarization analysis of reflected…
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Position-normal distributions for efficient rendering of specular microstructure Open
Specular BRDF rendering traditionally approximates surface microstructure using a smooth normal distribution, but this ignores glinty effects, easily observable in the real world. While modeling the actual surface microstructure is possibl…
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Light stage super-resolution Open
The light stage has been widely used in computer graphics for the past two decades, primarily to enable the relighting of human faces. By capturing the appearance of the human subject under different light sources, one obtains the light tr…
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Lighting Design for Energy Sustainability, Information, and Perception. A Museum Environment as a Case Study Open
The aim of our research is to investigate the physical connection between light, perception, and information by means of an integrated methodological approach. The proposed method was used for sustainable lighting design aiming at light ef…
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Specular Reflection Effects Elimination in Terrestrial Laser Scanning Intensity Data Using Phong Model Open
The intensity value recorded by terrestrial laser scanning (TLS) systems is significantly influenced by the incidence angle. The incidence angle effect is an object property, which is mainly related to target scattering properties, surface…
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Specular manifold sampling for rendering high-frequency caustics and glints Open
Scattering from specular surfaces produces complex optical effects that are frequently encountered in realistic scenes: intricate caustics due to focused reflection, multiple refraction, and high-frequency glints from specular microstructu…
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Motion and texture shape cues modulate perceived material properties Open
Specular and matte surfaces can project identical images if the surface geometry and light field are appropriately configured. Our previous work has shown that the visual system can exploit stereopsis and contour cues to 3D shape to disamb…
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A Global Optimization Method for Specular Highlight Removal From a Single Image Open
© 2013 IEEE. The presence of specular highlight is a critical issue for both natural and medical images such as those produced by laparoscopes, which can lead to erroneous visual tracking, stereo reconstruction, and image segmentation. Spe…
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Review of spectral and polarization imaging systems Open
International audience
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Effects of Shape, Roughness and Gloss on the Perceived Reflectance of Colored Surfaces Open
This study examined perceptual differentiation of specular from diffuse shading for the recovery of surface color and gloss. In Experiment 1, we parametrically varied the mesoscale relief height of globally planar surfaces, specular sharpn…
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Thermal non-line-of-sight imaging from specular and diffuse reflections Open
This paper presents a non-line-of-sight technique to estimate the position and temperature of an occluded object from a camera via reflection on a wall. Because objects with heat emit far infrared light with respect to their temperature, p…
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Infrared deflectometry for the inspection of diffusely specular surfaces Open
Deflectometry is a full-field gradient technique that lends itself very well to testing specular surfaces. It uses the geometry of specular reflection to determine the gradient of the surface under inspection. In consequence, a necessary p…
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A one-shot-projection method for measurement of specular surfaces Open
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…
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3D shape measurement of diffused/specular surface by combining fringe projection and direct phase measuring deflectometry Open
The three-dimensional (3D) data of object surfaces, like a precision machine part, play an important role in the fields of aerospace, automotive industry, augmented reality, heritage preservation, smart city, etc. The existing fringe proje…
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NTIRE 2023 Challenge on HR Depth from Images of Specular and Transparent Surfaces Open
This paper reports about the NTIRE 2023 challenge on HR Depth From images of Specular and Transparent surfaces, held in conjunction with the New Trends in Image Restoration and Enhancement workshop (NTIRE) workshop at CVPR 2023. This chall…
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Three-Dimensional Measurement for Specular Reflection Surface Based on Reflection Component Separation and Priority Region Filling Theory Open
Due to the strong reflection property of materials with smooth surfaces like ceramic and metal, it will cause saturation and the highlight phenomenon in the image when taking pictures of those materials. In order to solve this problem, a n…
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Dynamic Searching and Classification for Highlight Removal on Endoscopic Image Open
Endoscopic imaging is a common clinical modality to inspect surficial abnormality grew on the internal organs inside human body. Covered by tissue fluid, surface of these anatomies tend to be glossy, showing specular reflections from the i…
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Estimating Reflectance Layer from a Single Image: Integrating Reflectance Guidance and Shadow/Specular Aware Learning Open
Estimating the reflectance layer from a single image is a challenging task. It becomes more challenging when the input image contains shadows or specular highlights, which often render an inaccurate estimate of the reflectance layer. There…
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Light Field Imaging Based Accurate Image Specular Highlight Removal Open
Specular reflection removal is indispensable to many computer vision tasks. However, most existing methods fail or degrade in complex real scenarios for their individual drawbacks. Benefiting from the light field imaging technology, this p…
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3D Measurement of Structured Specular Surfaces Using Stereo Direct Phase Measurement Deflectometry Open
With the rapid development of modern manufacturing processes, ultra-precision structured freeform surfaces are being widely explored for components with special surface functioning. Measurement of the 3D surface form of structured specular…
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Specular Reflections Detection and Removal for Endoscopic Images Based on Brightness Classification Open
Specular Reflections often exist in the endoscopic image, which not only hurts many computer vision algorithms but also seriously interferes with the observation and judgment of the surgeon. The information behind the recovery specular ref…
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3D reconstruction of the specular surface using an iterative stereoscopic deflectometry method Open
Phase measuring deflectometry (PMD) is an effective technique for three-dimensional measurement of specular surfaces. However, the ambiguity of monoscopic PMD and the time-consuming searching process of stereoscopic PMD are challenges for …
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Large-curvature specular surface phase measuring deflectometry with a curved screen Open
Deflectometry has been widely used in topography measurement of the specular surface due to the merits of full-field data acquisition, automatic data processing, high accuracy, and large dynamic range. Existing deflectometry-based methods,…
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Physically Based Shading in Theory and Practice Open
International audience
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Detecting Specular Reflections and Cast Shadows to Estimate Reflectance and Illumination of Dynamic Indoor Scenes Open
The goal of Mixed Reality (MR) is to achieve a seamless and realistic blending between real and virtual worlds. This requires the estimation of reflectance properties and lighting characteristics of the real scene. One of the main challeng…
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Specular Reflection Detection and Inpainting in Transparent Object through MSPLFI Open
Multispectral polarimetric light field imagery (MSPLFI) contains significant information about a transparent object’s distribution over spectra, the inherent properties of its surface and its directional movement, as well as intensity, whi…
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Turning the World Upside Down to Understand Perceived Transparency Open
Specular surfaces and refractive media are difficult to distinguish from each other because they both generate distorted images of the surrounding lighting environment. Whereas convex refractive objects invert the orientation of the horizo…