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Computational color constancy refers to the problem of computing the illuminant color so that the images of a scene under varying illumination can be normalized to an image under the canonical illumination. In this paper, we adopt a deep…

Computer Vision and Pattern Recognition · Computer Science 2016-08-30 Seoung Wug Oh , Seon Joo Kim

Casual photography is often performed in uncontrolled lighting that can result in low quality images and degrade the performance of downstream processing. We consider the problem of estimating surface normal and reflectance maps of scenes…

Computer Vision and Pattern Recognition · Computer Science 2020-12-14 Zhihao Xia , Jason Lawrence , Supreeth Achar

Aspl\"und 's metric, which is useful for pattern matching, consists in a double-sided probing, i.e. the over-graph and the sub-graph of a function are probed jointly. This paper extends the Aspl\"und 's metric we previously defined for…

Computer Vision and Pattern Recognition · Computer Science 2017-02-28 Guillaume Noyel , Michel Jourlin

We propose a method for creating a matte -- the per-pixel foreground color and alpha -- of a person by taking photos or videos in an everyday setting with a handheld camera. Most existing matting methods require a green screen background or…

Computer Vision and Pattern Recognition · Computer Science 2020-04-13 Soumyadip Sengupta , Vivek Jayaram , Brian Curless , Steve Seitz , Ira Kemelmacher-Shlizerman

Transparency is commonly utilized in visualizations to overlay color-coded histograms or sets, thereby facilitating the visual comparison of categorical data. However, these charts often suffer from significant overlap between objects,…

Graphics · Computer Science 2024-12-24 Kecheng Lu , Lihang Zhu , Yunhai Wang , Qiong Zeng , Weitao Song , Khairi Reda

Today's autonomous vehicles rely extensively on high-definition 3D maps to navigate the environment. While this approach works well when these maps are completely up-to-date, safe autonomous vehicles must be able to corroborate the map's…

Computer Vision and Pattern Recognition · Computer Science 2016-12-09 Ari Seff , Jianxiong Xiao

Relative colour constancy is an essential requirement for many scientific imaging applications. However, most digital cameras differ in their image formations and native sensor output is usually inaccessible, e.g., in smartphone camera…

Image and Video Processing · Electrical Eng. & Systems 2022-11-23 Yunfeng Zhao , Stuart Ferguson , Huiyu Zhou , Chris Elliott , Karen Rafferty

Humans rely heavily on shapes as a primary cue for object recognition. As secondary cues, colours and textures are also beneficial in this regard. Convolutional neural networks (CNNs), an imitation of biological neural networks, have been…

Computer Vision and Pattern Recognition · Computer Science 2020-12-15 Aditya Singh , Alessandro Bay , Andrea Mirabile

Two kinds of maps that describe evolution of states of a subsystem coming from dynamics described by a unitary operator for a larger system, maps defined for fixed mean values and maps defined for fixed correlations, are found to be quite…

Quantum Physics · Physics 2008-07-08 Thomas F. Jordan

We prove lower and upper bounds for the chromatic number of certain hypergraphs defined by geometric regions. This problem has close relations to conflict-free colorings. One of the most interesting type of regions to consider for this…

Combinatorics · Mathematics 2011-05-03 Balázs Keszegh

Near-infrared gray images captured together with corresponding visible color images have recently proven useful for image restoration and classification. This paper introduces a new coloring method to add colors to near-infrared gray images…

Computer Vision and Pattern Recognition · Computer Science 2021-02-10 Chang-Hwan Son , Xiao-Ping Zhang

We present a palette-based framework for color composition for visual applications. Color composition is a critical aspect of visual applications in art, design, and visualization. The color wheel is often used to explain pleasing color…

Graphics · Computer Science 2018-06-22 Jianchao Tan , Jose Echevarria , Yotam Gingold

Proper graph coloring assigns different colors to adjacent vertices of the graph. Usually, the number of colors is fixed or as small as possible. Consider applications (e.g. variants of scheduling) where colors represent limited resources…

Combinatorics · Mathematics 2019-09-10 Tomáš Masařík

Content creation and image editing can benefit from flexible user controls. A common intermediate representation for conditional image generation is a semantic map, that has information of objects present in the image. When compared to raw…

Artificial Intelligence · Computer Science 2024-01-25 Chandrakanth Gudavalli , Erik Rosten , Lakshmanan Nataraj , Shivkumar Chandrasekaran , B. S. Manjunath

Most digital camera pipelines use color constancy methods to reduce the influence of illumination and camera sensor on the colors of scene objects. The highest accuracy of color correction is obtained with learning-based color constancy…

Computer Vision and Pattern Recognition · Computer Science 2019-03-20 Nikola Banić , Karlo Koščević , Sven Lončarić

Topological mapping offers a compact and robust representation for navigation, but progress in the field is hindered by the lack of standardized evaluation metrics, datasets, and protocols. Existing systems are assessed using different…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Jiaming Wang , Diwen Liu , Jizhuo Chen , Harold Soh

We focus on addressing the challenges in responsible beauty product recommendation, particularly when it involves comparing the product's color with a person's skin tone, such as for foundation and concealer products. To make accurate…

Computer Vision and Pattern Recognition · Computer Science 2023-09-11 Parnian Afshar , Jenny Yeon , Andriy Levitskyy , Rahul Suresh , Amin Banitalebi-Dehkordi

Our sensory systems transform external signals into neural activity, thereby producing percepts. We are endowed with an intuitive notion of similarity between percepts, that need not reflect the proximity of the physical properties of the…

Neurons and Cognition · Quantitative Biology 2023-06-22 Nicolás Vattuone , Thomas Wachtler , Inés Samengo

Most scenes are illuminated by several light sources, where the traditional assumption of uniform illumination is invalid. This issue is ignored in most color constancy methods, primarily due to the complex spatial impact of multiple light…

Computer Vision and Pattern Recognition · Computer Science 2024-02-06 Umut Cem Entok , Firas Laakom , Farhad Pakdaman , Moncef Gabbouj

Most work on foreground removal has treated the case where the frequency dependence of all components is perfectly known and independent of position. In contrast, real-world foregrounds are generally not perfectly correlated between…

Astrophysics · Physics 2009-10-30 Max Tegmark
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