نتایج جستجو برای: rgb

تعداد نتایج: 7868  

2015
Bor-Shing Lin Mei-Ju Su Po-Hsun Cheng Po-Jui Tseng Sao-Jie Chen

This work presents a procedure for refining depth maps acquired using RGB-D (depth) cameras. With numerous new structured-light RGB-D cameras, acquiring high-resolution depth maps has become easy. However, there are problems such as undesired occlusion, inaccurate depth values, and temporal variation of pixel values when using these cameras. In this paper, a proposed method based on an exemplar...

گرد­ و غبار یکی از رویدادهای جوی مناطق خشک و نیمه­ خشک جهان است که در سال­های اخیر افزایش قابل توجه­ ای داشته و آثار و پیامدهای نامطلوبی را در بخش­های مختلف بر جای گذاشته است. در این پژوهش از تصاویر سنجنده مودیس به منظور شناسایی و انتخاب بهترین الگوریتم تشخیص گرد و غبار استفاده شد. بدین منظور سه رویداد گرد و غبار جنوب غرب ایران در سال 2012 با استفاده از پنج الگوریتم مختلف شناسایی شامل BTD آکرمن...

2016
Lili Meng Jianhui Chen Frederick Tung James J. Little Clarence W. de Silva

We address the problem of estimating camera pose relative to a known scene, given a single RGB image. We extend recent advances in scene coordinate regression forests for camera relocalization in RGB-D images to use RGB features, enabling camera relocalization from a single RGB image. Furthermore, we integrate random RGB features and sparse feature matching in an efficient and accurate way, bro...

Journal: :I. J. Robotics Res. 2012
Peter Henry Michael Krainin Evan Herbst Xiaofeng Ren Dieter Fox

RGB-D cameras (such as the Microsoft Kinect) are novel sensing systems that capture RGB images along with per-pixel depth information. In this paper we investigate how such cameras can be used for building dense 3D maps of indoor environments. Such maps have applications in robot navigation, manipulation, semantic mapping, and telepresence. We present RGB-D Mapping, a full 3D mapping system tha...

2005
V. TSAGARIS

A pixel-level fusion technique for RGB representation of multispectral images is proposed. The technique results in highly correlated RGB components, a fact which occurs in natural colour images and is strictly related to the colour perception attributes of the human eye. Accordingly, specific properties for the covariance matrix of the final RGB image are demanded. Mutual information is employ...

Journal: :CoRR 2017
Angel X. Chang Angela Dai Thomas A. Funkhouser Maciej Halber Matthias Nießner Manolis Savva Shuran Song Andy Zeng Yinda Zhang

Access to large, diverse RGB-D datasets is critical for training RGB-D scene understanding algorithms. However, existing datasets still cover only a limited number of views or a restricted scale of spaces. In this paper, we introduce Matterport3D, a large-scale RGB-D dataset containing 10,800 panoramic views from 194,400 RGB-D images of 90 building-scale scenes. Annotations are provided with su...

Journal: :Soft matter 2014
Dong Chen Haitao Wang Min Li Matthew A Glaser Joseph E Maclennan Noel A Clark

A disordered chiral conglomerate, the random grain boundary (RGB) phase, has been observed below the smectic A liquid crystal phase of an achiral, hockey-stick molecule. In cells, the RGB phase appears dark between crossed polarizers but decrossing the polarizers reveals large left- and right-handed chiral domains with opposite optical rotation. Freeze-fracture transmission electron microscopy ...

Journal: :CoRR 2017
Scott Allen Burns

I present an algorithm for computationally mixing screen colors (RGB colors) subtractively, written for a general audience. The question it addresses is, “Given two colors specified by their RGB triplets, what RGB triplet should be used to represent the color that would arise if the two colors were mixed like paint colors, i.e., mixed subtractively?” The only way I can think of doing this in a ...

2004
J A Stephen Viggiano

Six different methods for white-balancing digital images were compared in terms of their ability to produce white-balanced colors close to those viewed under a specific viewing illuminant. The six methods were: native camera RGB, XYZ, CAM02, ITU Rec BT.709 RGB, sharpened camera RGB, and illuminant-dependent. 4096 different sets of camera sensitivities were synthesized; 170 objects were evaluate...

Journal: :IEICE Electronic Express 2009
Yang-Soo Kim Jinwoo Jeong Yoonsik Choe

H.264/AVC High 4:4:4 Intra/Predictive profiles supports RGB 4:4:4 sequences for high fidelity video. RGB color planes rather than YCbCr color planes are preferred by high-fidelity video applications such as digital cinema, medical imaging, and UHDTV. Several RGB coding tools have therefore been developed to improve the coding efficiency of RGB video. In this paper, we propose a new method to ex...

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