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Recognizing deformable shapes
| Content Provider | Semantic Scholar |
|---|---|
| Author | Correa, Salvador Ruiz Shapiro, Linda G. Furness, Thomas A. |
| Copyright Year | 2004 |
| Abstract | Recognizing classes of objects from their shape is an unsolved problem in computer vision that entails the ability of a computer system to represent and generalize complex geometrical information on the basis of a finite amount of prior data. A practical approach to this problem is particularly difficult to implement, not only because the shape variability of relevant object classes is generally large, but also because standard sensing devices used to capture the real world only provide a partial view of a scene, so there is partial information pertaining to the objects of interest. In this dissertation, we develop an algorithmic framework for recognizing classes of deformable shapes from range data. The basic idea of our component-based approach is to generalize existing surface representations that have proved effective in recognizing specific 3-D objects to the problem of object classes by using a symbolic representation that is robust to deformations, as opposed to a numeric representation that is often tied to a specific shape. Our approach consists of encoding object class parts and their corresponding spatial configuration using an algorithmic framework that encompasses five key elements. We use numeric shape descriptors to quantify the surface geometry of an object, and a constellation of components (groups of equivalent numeric descriptors) to quantify the local geometry of a shape class. The spatial configuration of the components is encoded into a set of symbolic shape descriptors whose similarity across deformations is measured using a novel kernel function. Finally, an architecture composed of a series of classification stages learns the components and their spatial relationships from a set of examples. Based on this approach, we present a system that is capable of recognizing and classifying a variety of object shape classes from range data. We demonstrate our system in a series of large-scale experiments that were motivated by specific applications in scene analysis and medical diagnosis. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://courses.cs.washington.edu/courses/cse455/10au/notes/3DShape.pdf |
| Alternate Webpage(s) | http://courses.cs.washington.edu/courses/cse455/07wi/notes/salswork.pdf |
| Alternate Webpage(s) | https://courses.cs.washington.edu/courses/cse576/07sp/notes/3DShape.pdf |
| Alternate Webpage(s) | http://homes.cs.washington.edu/~shapiro/EE596/notes/3DShapewhite.pdf |
| Alternate Webpage(s) | http://courses.cs.washington.edu/courses/cse576/04sp/notes/Deformable.pdf |
| Alternate Webpage(s) | http://courses.cs.washington.edu/courses/cse455/14au/notes/3DShape-Short.pdf |
| Alternate Webpage(s) | https://courses.cs.washington.edu/courses/cse576/11sp/notes/3DShape.pdf |
| Alternate Webpage(s) | http://courses.cs.washington.edu/courses/cse576/10sp/notes/3DShape.pdf |
| Alternate Webpage(s) | http://courses.cs.washington.edu/courses/cse576/07sp/notes/3DShape.pdf |
| Alternate Webpage(s) | http://courses.cs.washington.edu/courses/cse576/12sp/notes/3DShape.pdf |
| Alternate Webpage(s) | https://homes.cs.washington.edu/~shapiro/EE596/notes/3DShapewhite.pdf |
| Alternate Webpage(s) | https://courses.cs.washington.edu/courses/cse576/04sp/notes/Deformable.pdf |
| Alternate Webpage(s) | https://courses.cs.washington.edu/courses/cse576/10sp/notes/3DShape.pdf |
| Alternate Webpage(s) | http://courses.cs.washington.edu/courses/cse455/10au/notes/3DShape-Short.pdf |
| Alternate Webpage(s) | http://courses.cs.washington.edu/courses/cse576/06sp/notes/3DShape.pdf |
| Alternate Webpage(s) | http://courses.cs.washington.edu/courses/cse455/05wi/notes/salswork.pdf |
| Alternate Webpage(s) | https://courses.cs.washington.edu/courses/cse576/06sp/notes/3DShape.pdf |
| Alternate Webpage(s) | http://courses.cs.washington.edu/courses/cse576/11sp/notes/3DShape.pdf |
| Alternate Webpage(s) | https://courses.cs.washington.edu/courses/cse576/12sp/notes/3DShape.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
