TY - GEN
T1 - Representations of 3D objects that incorporate surface markings
AU - Forsyth, David
AU - Rothwell, Charlie
N1 - DAF was upported in part by the National Science Foundation under award no. IRI-9209729, in part by a grant from United States Air Force Office of Scientific Research AFOSR-91-0361, and in part by a National Science Foundation Young Investigator Award with matching funds from GE, Rockwell International and Tektronix. CAR was supported in part by a grant from GE. This idea has origins in both authors' collaborative work with Joe Mundy and Andrew Zisserman. DAF was encouraged to consider surface markings by a discussion with Shree Nayar. Thanks to David Mumford for helpful and informative conversations. Rodney Andrfi built the tool for modeling worlds of extruded surfaces.
PY - 1994
Y1 - 1994
N2 - In many cases, the geometric representation that a recognition system could recover is insufficient to identify objects. When object geometry is simple, it is not particularly distinctive; however, a rich representation can be obtained by mapping the surface markings of the object onto the geometry recovered. If edges are mapped, a representation that is relatively insensitive to the details of lighting can be recovered. Mapping grey levels or color values leads to a highly realistic graphical representation, which can be used for rendering. The idea is demonstrated using extruded surfaces, which consist of a section of a general cone cut by two planes. Such surfaces possess a simple geometry, yet are widespread in the real world. The geometry of an extruded surface is simple, and can easily be recovered from a single uncalibrated image. We show examples based on images of real scenes.
AB - In many cases, the geometric representation that a recognition system could recover is insufficient to identify objects. When object geometry is simple, it is not particularly distinctive; however, a rich representation can be obtained by mapping the surface markings of the object onto the geometry recovered. If edges are mapped, a representation that is relatively insensitive to the details of lighting can be recovered. Mapping grey levels or color values leads to a highly realistic graphical representation, which can be used for rendering. The idea is demonstrated using extruded surfaces, which consist of a section of a general cone cut by two planes. Such surfaces possess a simple geometry, yet are widespread in the real world. The geometry of an extruded surface is simple, and can easily be recovered from a single uncalibrated image. We show examples based on images of real scenes.
KW - Invariants
KW - Object recognition
KW - Representation
KW - Surface markings
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U2 - 10.1007/3-540-58240-1_18
DO - 10.1007/3-540-58240-1_18
M3 - Conference contribution
AN - SCOPUS:0041897313
SN - 9783540582403
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 341
EP - 357
BT - Applications of Invariance in Computer Vision - 2nd Joint European - US Workshop, Proceedings
A2 - Mundy, Joseph L.
A2 - Zisserman, Andrew
A2 - Forsyth, David
PB - Springer
T2 - 2nd Joint European–US Workshop on Applications of Invariance in Computer Vision, 1993
Y2 - 9 October 1993 through 14 October 1993
ER -