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Image harmonization aims to modify the color of the composited region with respect to the specific background. Previous works model this task as a pixel-wise image-to-image translation using UNet family structures. However, the model size…

Computer Vision and Pattern Recognition · Computer Science 2021-12-01 Jingtang Liang , Xiaodong Cun , Chi-Man Pun , Jue Wang

Cross-grating phase microscopy (CGM) is a quantitative phase microscopy technique based on the association of a 2-dimensional diffraction grating (cross-grating) and a regular camera sensor, separated by a millimetric distance. This simple…

Optics · Physics 2024-11-04 Baptiste Marthy , Guillaume Baffou

Quantum image processing employs quantum computing to capture, manipulate, and recover images in various formats. This requires representations of encoded images using the quantum mechanical composition of any potential computing hardware.…

Quantum Physics · Physics 2020-07-21 Fei Yan , Nianqiao Li , Kaoru Hirota

Computational ghost imaging is a robust and compact system that has drawn wide attentions over the last two decades. Multispectral imaging possesses spatial and spectral resolving abilities, is very useful for surveying scenes and…

Optics · Physics 2017-08-02 Jian Huang , Dongfeng Shi

Computational color constancy, or white balancing, is a key module in a camera's image signal processor (ISP) that corrects color casts from scene lighting. Because this operation occurs in the camera-specific raw color space, white balance…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Dongyoung Kim , Mahmoud Afifi , Dongyun Kim , Michael S. Brown , Seon Joo Kim

Corrections to the magnitudes of high redshift objects due to intergalactic attenuation are computed using current estimates of the properties of the intergalactic medium. The results of numerical simulations are used to estimate the…

Astrophysics · Physics 2007-05-23 Avery Meiksin

A computer program for evaluating colour factors of QCD Feynman diagrams is presented, and illustrative examples on how to use the program to calculate non trivial colour factors are given. The program and the discussion in this paper is…

High Energy Physics - Phenomenology · Physics 2009-10-28 Jari Hakkinen , Hamid Kharraziha

The three areas of realistic forward rendering, per-pixel inverse rendering, and generative image synthesis may seem like separate and unrelated sub-fields of graphics and vision. However, recent work has demonstrated improved estimation of…

Computer Vision and Pattern Recognition · Computer Science 2024-05-02 Zheng Zeng , Valentin Deschaintre , Iliyan Georgiev , Yannick Hold-Geoffroy , Yiwei Hu , Fujun Luan , Ling-Qi Yan , Miloš Hašan

The analysis of digital images using homological procedures is an outstanding topic in the area of Computational Algebraic Topology. In this paper, we describe a certified reduction strategy to deal with digital images, but preserving their…

Logic in Computer Science · Computer Science 2016-08-11 María Poza , César Domínguez , Jónathan Heras , Julio Rubio

Holographic displays promise several benefits including high quality 3D imagery, accurate accommodation cues, and compact form-factors. However, holography relies on coherent illumination which can create undesirable speckle noise in the…

Graphics · Computer Science 2023-09-20 Grace Kuo , Florian Schiffers , Douglas Lanman , Oliver Cossairt , Nathan Matsuda

It is an ill-posed problem to recover the true scene colors from a color biased image by discounting the effects of scene illuminant and camera spectral sensitivity (CSS) at the same time. Most color constancy (CC) models have been designed…

Computer Vision and Pattern Recognition · Computer Science 2017-10-11 Shao-Bing Gao , Ming Zhang , Chao-Yi Li , Yong-Jie Li

Cosmic ray (CR) identification and replacement are critical components of imaging and spectroscopic reduction pipelines involving solid-state detectors. We present deepCR, a deep learning based framework for CR identification and subsequent…

Instrumentation and Methods for Astrophysics · Physics 2020-02-05 Keming Zhang , Joshua S. Bloom

Making computer-generated (CG) images more difficult to detect is an interesting problem in computer graphics and security. While most approaches focus on the image rendering phase, this paper presents a method based on increasing the…

Computer Vision and Pattern Recognition · Computer Science 2018-10-29 Huy H. Nguyen , Ngoc-Dung T. Tieu , Hoang-Quoc Nguyen-Son , Junichi Yamagishi , Isao Echizen

Though Neural Radiance Fields (NeRF) can produce colorful 3D representations of the world by using a set of 2D images, such ability becomes non-existent when only monochromatic images are provided. Since color is necessary in representing…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Yean Cheng , Renjie Wan , Shuchen Weng , Chengxuan Zhu , Yakun Chang , Boxin Shi

Image segmentation is the process of partitioning the image into significant regions easier to analyze. Nowadays, segmentation has become a necessity in many practical medical imaging methods as locating tumors and diseases. Hidden Markov…

Computer Vision and Pattern Recognition · Computer Science 2018-03-14 EL-Hachemi Guerrout , Samy Ait-Aoudia , Dominique Michelucci , Ramdane Mahiou

In prepress department RGB image has to be converted to CMYK image. To control that amount of black, cyan, magenta and yellow has to be controlled by using color separation method. Graycolor separation method is selected to control the…

Computer Vision and Pattern Recognition · Computer Science 2015-03-13 Jaswinder Singh Dilawari , Ravinder Khanna

This paper gives a new scheme of colour image compression related to singular values matrix approximation. The image has to be converted in luminance / chrominance space before being processed like JPEG standard 4 : 2 : 0. Our approach is…

Information Theory · Computer Science 2013-08-06 Henri Bruno Razafindradina , Paul Auguste Randriamitantsoa , Nicolas Raft Razafindrakoto

In this paper we deal with the problem of chromaticity, i.e. apparent position variation of stellar images with their spectral distribution, using neural networks to analyse and process astronomical images. The goal is to remove this…

Astrophysics · Physics 2009-11-13 M. Gai , R. Cancelliere

Neural Radiance Fields has become a prominent method of scene generation via view synthesis. A critical requirement for the original algorithm to learn meaningful scene representation is camera pose information for each image in a data set.…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Jan Olszewski

We consider the challenging problem of predicting intrinsic object properties from a single image by exploiting differentiable renderers. Many previous learning-based approaches for inverse graphics adopt rasterization-based renderers and…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Wenzheng Chen , Joey Litalien , Jun Gao , Zian Wang , Clement Fuji Tsang , Sameh Khamis , Or Litany , Sanja Fidler
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