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Matching geometrical descriptions in three-space

SB Pollard, J Porrill, JEW Mayhew, JP Frisby
1987 Image and Vision Computing  
A .matching strategy for combining two or more three space descriptions, obtained here from edge based binocu-1ar stereo, of a scene is discussed.  ...  The scheme combines features of a number of recent model matching algorithms with heuristics aimed to reduce the space of potential rigid transformations that relate scene descriptions.  ...  Geometrical Description The task of matching three space descriptions of well carpentered scenes is discussed.  ... 
doi:10.1016/0262-8856(87)90030-8 fatcat:d4vpvveeg5blvgrfcts3s7l4qi

FORTIFY METHOD OF MOVING OBJECT DETECTION BASED ON COLOR AND EDGE GEOMETRICAL FEATURES [chapter]

Ying Lin, Yang Fu, Yueheng Sun, Yanghong Sun
2009 IFIP Advances in Information and Communication Technology  
First, by the color features in a real supervised scene, the method extracts several regions of interest (ROI) with noise, then matches them with geometric shape by Fourier descriptors in the database  ...  A Fortify method of moving object detection is proposed in this paper. Based on color and edge geometric features, the new method can automatically organize a supervised area.  ...  hue sub-space and extracting the color feature corresponding the scope of the H component in the HSI color space, initially identify the regions of ROI in the color image. 2 The match of geometrical shape  ... 
doi:10.1007/978-1-4419-0211-5_40 fatcat:usmnrwv2xnai3nwpodt2vnwzxi

Creating Body Shapes From Verbal Descriptions by Linking Similarity Spaces

Matthew Q. Hill, Stephan Streuber, Carina A. Hahn, Michael J. Black, Alice J. O'Toole
2016 Psychological Science  
This relationship allowed us to generate three-dimensional models of people in the shape space using only their coordinates on analogous dimensions in the language-based description space.  ...  Human descriptions of photographed bodies and their corresponding models matched closely.  ...  In a space with male and female bodies, this body clustered with males on Axis 1, which otherwise separated bodies by sex. We agreed that this body appeared male.  ... 
doi:10.1177/0956797616663878 pmid:27708127 fatcat:mzlan4bev5egxilxdtr57fbwrq

TINA: a 3D vision system for pick and place

J Porrill, S.B. Pollard, T.P. Pridmore, J.B. Bowen, J.E.W. Mayhew, J.P. Frisby
1988 Image and Vision Computing  
of constraints for within view refinement. 4) The matching of 3D wireframe models to 3D scene descriptions, to recover an initial estimate of their position and orientation.  ...  the scene geometry in terms of straight lines and circular arcs. 3) The statistical combination of 3D descriptions for the purpose of object model creation from multiple stereo views, and the propagation  ...  Three well chosen points are projected into the world/camera coordinate frame and a circle hypothesised, which then predicts an ellipse lying in the plane in disparity space.  ... 
doi:10.1016/0262-8856(88)90004-2 fatcat:ls5sfb7pbngxhbxecgwlqlecj4

TINA: A 3D Vision System for Pick and Place

J. Porrill, S. B. Pollard, T. P. Pridmore, J. B. Bowen, J. E. W. Mayhew, J. P. Frisby
1987 Procedings of the Alvey Vision Conference 1987  
of constraints for within view refinement. 4) The matching of 3D wireframe models to 3D scene descriptions, to recover an initial estimate of their position and orientation.  ...  the scene geometry in terms of straight lines and circular arcs. 3) The statistical combination of 3D descriptions for the purpose of object model creation from multiple stereo views, and the propagation  ...  Three well chosen points are projected into the world/camera coordinate frame and a circle hypothesised, which then predicts an ellipse lying in the plane in disparity space.  ... 
doi:10.5244/c.1.9 dblp:conf/bmvc/PorrillPPBMF87 fatcat:cwrq2hnllrbf3fggqfal4yyzie

Recovering partial 3D wire frame descriptions from stereo data

S. B. Pollard, J. Porrill, J. E. W. Mayhew
1990 Procedings of the British Machine Vision Conference 1990  
The algorithm does not, however, at this stage recover an accurate estimate of disparity of each pair of matched edges. (2) Geometrical description.  ...  We describe the design of modules in the current version of the TINA stereo based 3D vision system responsible for the recovery of geometric descriptions and their subsequent integration into partial wire  ...  : (1) The 2D descriptions are reasonably robust. (2) The 2D descriptions can be obtained economically. (3) Edge matching is reasonably generic. (4) Disparity to segment fitting is optimal. (5) Geometrical  ... 
doi:10.5244/c.4.8 dblp:conf/bmvc/PollardPM90 fatcat:7jnfjjdsn5byzlyzv2bdv6mbny

Recovering partial 3D wire frames descriptions from stereo data

Stephen B Pollard, John Porrill, John EW Mayhew
1991 Image and Vision Computing  
The algorithm does not, however, at this stage recover an accurate estimate of disparity of each pair of matched edges. (2) Geometrical description.  ...  We describe the design of modules in the current version of the TINA stereo based 3D vision system responsible for the recovery of geometric descriptions and their subsequent integration into partial wire  ...  : (1) The 2D descriptions are reasonably robust. (2) The 2D descriptions can be obtained economically. (3) Edge matching is reasonably generic. (4) Disparity to segment fitting is optimal. (5) Geometrical  ... 
doi:10.1016/0262-8856(91)90050-y fatcat:mvqrpdeypvdgrhn44l43l7ooya

3D motion estimation by evidence gathering

Anas Abuzaina, Mark S. Nixon, John N. Carter
2016 2016 23rd International Conference on Pattern Recognition (ICPR)  
The algorithm provides an alternative to the feature description and matching pipelines commonly used by numerous 3D object recognition and registration algorithms, as it does not involve keypoint detection  ...  7-dimensional accumulator spaces.  ...  also without employing feature description and matching.  ... 
doi:10.1109/icpr.2016.7899890 dblp:conf/icpr/AbuzainaNC16 fatcat:ang25u2pl5hs3da2cgc7otqiu4

CCMS: A Greedy Approach to Motif Extraction [chapter]

Giacomo Drago, Marco Ferretti, Mirto Musci
2013 Lecture Notes in Computer Science  
A secondary effect of the new version is the capability to cope with uncertainty in the geometric description of the secondary structures.  ...  Efficient and precise motif extraction is a central problem in the study of proteins functions and structures.  ...  The key idea is to ignore the biological significance on the motifs as much as possible, and to focus on the geometric description of the structures which could be simply viewed as vectors in a 3D space  ... 
doi:10.1007/978-3-642-41190-8_39 fatcat:mn23r3c36rah7nj3vp7a4witt4

Geometric description of the Schrödinger equation in (3n+1)-dimensional configuration space

M. Abdul Wasay, Asma Bashir, Benjamin Koch, Abdul Ghaffar
2017 International Journal of Geometric Methods in Modern Physics (IJGMMP)  
We show that for non-relativistic free particles, the (bosonic) many particle equations can be rewritten in geometric fashion in terms of a classical theory of conformally stretched spacetime.  ...  x in the (non-local) quantum description are initially defined in three dimensional space plus a universal time. • Is the presented geometric description "gravity"?  ...  The particle to be affected out of nparticles is denoted by the index j and m is the space index in three flat dimensions.  ... 
doi:10.1142/s0219887817501493 fatcat:4qf4vls34bfcdht43sqgwda7se

A DASKL Descriptor via Encoding the Information of Keypoints and a 3D Local Surface for 3D Matching

Yuanhao Wu, Chunyang Wang, Xuelian Liu, Chunhao Shi, Xuemei Li
2022 Electronics  
Three-dimensional matching is widely used in 3D vision tasks, such as 3D reconstruction, target recognition, and 3D model retrieval.  ...  The results show that our DASKL descriptor has achieved excellent performance in terms of description, robustness, and efficiency.  ...  The main contributions of this paper are summarized as follows: (1) By encoding geometric information in subdivision spaces and combining the geometric information of keypoints and the last three keypoints  ... 
doi:10.3390/electronics11152328 fatcat:kyy62amamvhrzi7wok7mh5c2y4

SPIDA: Abstracting and generalizing layout design cases

D. MANFAAT, A.H.B. DUFFY, B.S. LEE
1998 Artificial intelligence for engineering design, analysis and manufacturing  
In this paper, we propose a new approach, termed customized viewpoint-spatial (CV-S), which supports the generalization and abstraction of spatial layouts into hierarchies along with a supporting system  ...  These three main aspects are addressed briefly in the following three subsections. Pattern classes Pattern classes refer to the classes of patterns that are used in the pattern matching process.  ...  In the generalization of layouts, structural descriptions of layouts in the form of topological patterns and combined topological patterns and geometric shapes are learned.  ... 
doi:10.1017/s0890060498122060 fatcat:mzqcptoczvbpvdejk2zrzpmjda

Page 5220 of Mathematical Reviews Vol. , Issue 2002G [page]

2002 Mathematical Reviews  
It ex- plores geometrical models of cameras as perspective projections from the 3D space to a 2D image.  ...  On the basis of a numbering scheme for certain geometric objects and on several useful geo- metric observations, we develop an O(nlogn) time, O(n) space algorithm that produces a desired matching for rectilinear  ... 

Page 4682 of Mathematical Reviews Vol. , Issue 83k [page]

1983 Mathematical Reviews  
It considers how to construct a model consistent with a given set of descriptions and how to extract a description that matches a given model; it also contains an appendix on the extraction of three-dimensional  ...  This geometric approach provides valuable insight into why different feature subsets may or may not have high discriminatory potential, and shows that clustering in the dual space, or its subspaces, does  ... 

TINA: The Sheffeild AIVRU Vision System

John Porrill, Stephen Pollard, Tony P. Pridmore, Jonathan B. Bowen, John E. W. Mayhew, John P. Frisby
1987 International Joint Conference on Artificial Intelligence  
of constraints for within view refinement. 4) The matching of 3D wireframe models to 3D scene descriptions, to recover an initial estimate of their position and orientation.  ...  the scene geometry in terms of straight lines and circular arcs. 3) The statistical combination of 3D descriptions for the purpose of object model creation from multiple stereo views, and the propagation  ...  Three well chosen points are projected into the world/camera coordinate frame and a circle hypothesised, which then predicts an ellipse lying in the plane in dispar ity space.  ... 
dblp:conf/ijcai/PorrillPPBMF87 fatcat:a43z3flun5bgxcbqvfnnbpxwn4
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