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A histogram-based color consistency test for voxel coloring
Object recognition supported by user interaction for service robots
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Voxel Coloring has become a popular technique for reconstructing a 3D scene from a set of 2D images. ...
We propose a new form of consistency test, based on histograms, that 1) is more robust at reconstructing textured surfaces, 2) deals properly with RGB color information, and 3) does not require fine tuning ...
Introduction We present a new color consistency test for Voxel Coloring [1] that is based on histograms. ...
doi:10.1109/icpr.2002.1047413
dblp:conf/icpr/StevensCM02
fatcat:rawqqzpcsbdbfhex6iotx7hpgm
Methods for Volumetric Reconstruction of Visual Scenes
2004
International Journal of Computer Vision
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In particular, we describe a visibility approach that uses all possible color information from the photographs during reconstruction, photo-consistency measures that are more robust and/or require less ...
We improve upon existing voxel coloring / space carving approaches by introducing new ways to compute visibility and photoconsistency, as well as model infinitely large scenes. ...
We are grateful to Mark Livingston and Irwin Sobel for calibration of the Stanford data set. We also express our gratitude to Fred Kitson for his continued support and encouragement of this research. ...
doi:10.1023/b:visi.0000013093.45070.3b
fatcat:bqvd3pyswbapriajeuzpxg6kam
Multi Voxel Descriptor for 3D Texture Retrieval
2016
Emitter: International Journal of Engineering Technology
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First, we build biner voxel histogram and color voxel histogram. Second, we compute distance from centre voxel into other voxels and generate histogram. ...
In this paper, we present a new feature descriptors which exploit voxels for 3D textured retrieval system when models vary either by geometric shape or texture or both. ...
Acknowledgements The authors would like to thank DIKTI (Indonesian Goverment for Higher Education) for scholarship. ...
doi:10.24003/emitter.v4i1.110
fatcat:wwsl6ip3sbhx5odc75qfia6n3a
Color Histogram-Based Image Segmentation
[chapter]
2011
Lecture Notes in Computer Science
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An algorithm is presented to segment a color image based on the 3D histogram of colors. ...
Since the histogram does not take into account spatial information, the image is likely to result over-segmented and a merging step, based on the size of the segmentation regions, is performed to reduce ...
In turn, for a peak consisting of a connected component of voxels, the representative color associated to the peak is the color of the centroid of the peak. ...
doi:10.1007/978-3-642-23672-3_10
fatcat:egagir5t3rejhaxyf5crzb2fua
Human Head Tracking in Three Dimensional Voxel Space
2006
18th International Conference on Pattern Recognition (ICPR'06)
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This paper proposes a new approach to track a human head in 3-D voxel space. Information of both color and distance is obtained from multiple stereo cameras and integrated in 3-D voxel space. ...
Formulating a likelihood function from voxel location and its color information can achieve stable tracking with particle filtering in 3-D voxel space. ...
The histograms which consist of color information and voxel location information are the observed values. ...
doi:10.1109/icpr.2006.636
dblp:conf/icpr/KawanakaFI06
fatcat:eiyoyz5ujzeeplx7mpjx24srfy
Local Color Voxel and Spatial Pattern for 3D Textured Recognition
2017
International Journal on Advanced Science, Engineering and Information Technology
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Based on this fact, a novel voxel pattern based is proposed by considering local pattern on a voxel called local color voxel pattern (LCVP). ...
LCVP also quantizes color on each voxel to generate a specific pattern. Shift and reflection circular also will be done. ...
A. 3D Voxel A 3D model consists of many faces (triangles), and a face consists of three vertices. Each vertex has an RGB value. ...
doi:10.18517/ijaseit.7.2.2173
fatcat:nrd2wggtcbh73lkvqvu6oefxmu
Hue Selectivity in Human Visual Cortex Revealed by Functional Magnetic Resonance Imaging
2015
Cerebral Cortex
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We addressed this issue by deriving histograms of hue-selective voxels measured using fMRI with a novel stimulation paradigm, where the stimulus hue changed continuously. ...
Despite the large between-subject difference in hue-selective histograms, individual voxels exhibited selectivity for intermediate hues, such as purple, cyan, and orange, in addition to those along cone-opponent ...
Notes We thank all the naïve subjects for their time and efforts participating in this study and the 2 anonymous reviewers for their constructive comments on an early version of the manuscript. ...
doi:10.1093/cercor/bhv198
pmid:26423093
pmcid:PMC4635924
fatcat:vqx6oukrf5hspozd7dkyynv3qa
Object Reconstruction and Recognition leveraging an RGB-D Camera
2011
IAPR International Workshop on Machine Vision Applications
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as histogram comparison. ...
On the modeling side, we propose a volume carving algorithm capable of reconstructing rough 3D shape with a low processing cost. ...
We base our study on [1] , where SIFT feature matching is combined with regional histogram comparison using only a color image. ...
dblp:conf/mva/AbderrahimGM11
fatcat:22sfbrdx3rf4bla7vypoznuuou
Spatial Resolution and Distance Information for Color Quantization
[chapter]
2013
Lecture Notes in Computer Science
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The algorithm has been tested on a large number of color images with different size and color distribution, and the performance has been compared to the performance of other algorithms in the literature ...
A new color quantization algorithm, CQ, is presented, which includes two phases. The first phase reduces the number of colors by reducing the spatial resolution of the input image. ...
The centroid of a discrete object consisting of a given number of voxels is the arithmetic mean position of all the voxels in the object. ...
doi:10.1007/978-3-642-41184-7_65
fatcat:u3zsxnkbcrfqddf6y6p5rzumfu
Virtual mastoidectomy performance evaluation through multi-volume analysis
2012
International Journal of Computer Assisted Radiology and Surgery
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Conclusions- The software provides a promising approach for comparing performance between large groups of residents learning mastoidectomy techniques. ...
Purpose-Development of a visualization system that provides surgical instructors with a method to compare the results of many virtual surgeries (n > 100). ...
Acknowledgments This work is supported by a grant from the National Institute of Deafness and Other Communication Disorders, of the National Institutes of Health, 1 R01 DC06458-01A1. ...
doi:10.1007/s11548-012-0687-4
pmid:22528058
pmcid:PMC3480554
fatcat:gw5ncqaam5hlzgccprijublhla
Image Segmentation Based on Representative Colors Detection and Region Merging
[chapter]
2013
Lecture Notes in Computer Science
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We present a color image segmentation algorithm, RCRM, based on the detection of Representative Colors and on Region Merging. The 3D color histogram of the RGB input image is built. ...
The algorithm has been tested on a large number of RGB color images originating satisfactory results. ...
Obviously, if MC i consists of a single voxel, the centroid coincides with the voxel itself and the coordinates of c i are certainly expressed by integer numbers. ...
doi:10.1007/978-3-642-38989-4_18
fatcat:vezou65kr5gknj2qokir5fapu4
Improving statistics for hybrid segmentation of high-resolution multichannel images
2002
Medical Imaging 2002: Image Processing
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We have developed a hybrid method that combines fuzzy connectedness and Voronoi diagram classification for the segmentation of color and multichannel objects. ...
High-resolution multichannel textures are difficult to characterize with simple statistics and the high level of detail makes the selection of a particular contour using classical gradient-based methods ...
For this reason we tested in this work a new homogeneity measure derived from individual channel statistics and histogram distances. ...
doi:10.1117/12.467182
dblp:conf/miip/Angelini-Casadevall02
fatcat:4xn6y5jswnf4phy63aimi26clq
Visibility-Weighted Saliency for Volume Visualization
[article]
2015
Computer Graphics and Visual Computing
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Visibility-weighted saliency is based on a computational measure of perceptual importance of voxels and the visibility of features in volume rendered images. ...
The effectiveness of this scheme is demonstrated by test results on two volume data sets. ...
space consisting of the three color components [Fai13] . ...
doi:10.2312/cgvc.20151243
dblp:conf/tpcg/LuoD15
fatcat:s4wugepmxbg5hd3rjhqboet3oq
2D Histogram based volume visualization: combining intensity and size of anatomical structures
2010
International Journal of Computer Assisted Radiology and Surgery
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magnitude-based 2D histograms. ...
The original image and structure-size data sets were used to generate a structure-size enhanced (SSE) histogram. ...
Acknowledgment Our thanks go to Kevin Schelten for proof-reading this manuscript. ...
doi:10.1007/s11548-010-0480-1
pmid:20512631
fatcat:4gns5wnvabgpbgy6xklh7t7eqy
A Cluster-Space Visual Interface for Arbitrary Dimensional Classification of Volume Data
[article]
2004
EUROVIS 2005: Eurographics / IEEE VGTC Symposium on Visualization
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We introduce an intuitive user interface that allows the user to work in the cluster space, which shows the material classes with a set of material widgets, rather than work in the transfer function space ...
Figure 8 is the result of a four dimensional classification using the cryosection color brain data set. This data set consists of color photographs of slices of a human brain. ...
User Defined Classification The user interface consists of a set of material widgets for each cluster. ...
doi:10.2312/vissym/vissym04/017-024
fatcat:uzzrp6kvanashg4kxf64w7zgoe
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