2007 IEEE International Conference on Image Processing - San Antonio, Texas, U.S.A. - September 16-19, 2007

Technical Program

Paper Detail

Paper:WP-P8.7
Session:Stereoscopic and 3D Processing VI
Time:Wednesday, September 19, 14:30 - 17:10
Presentation: Poster
Title: REGISTRATION AND MATCHING OF PERSPECTIVE SURFACE NORMAL MAPS
Authors: Craig Fancourt; Sarnoff Corporation 
Abstract: We present a method for the registration and matching of perspective surface normal maps. Registration of two maps consists of optimally aligning their normals through a 2-D warping in the image plane in conjunction with a 3-D rotation of the normals. Once aligned, the average dot-product then serves as a match metric for automatic target recognition (ATR). We conduct an ATR experiment using synthesized views of 25 commercial vehicles, and obtain perfect recognition results when the test azimuth is within [-6°,+10°] of the reference pose, even when the normals are corrupted by up to 20° uniform random noise. The results suggest that needle maps are a rich yet compact representation of an object, which may be useful for exploiting information from stereo images, shape from shading algorithms, or sensors which obtain the normals from polarization information.



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