6 April 1998 3D object registration in image sequences
Author Affiliations +
Proceedings Volume 3304, Nonlinear Image Processing IX; (1998); doi: 10.1117/12.304599
Event: Photonics West '98 Electronic Imaging, 1998, San Jose, CA, United States
In this paper, we address the issue of pose estimation for 3D polyhedral objects in 2D color image sequences. Knowing the 3D object model defined as a mesh or as a set of segments with adjency properties, the generic approach proposed here involves a robust 2D segment extraction method. This method involves two consecutive frames in the sequence, and is based on three steps: (1) color segmentation, (2) color gradient map computation based on the minimum vector dispersion detector, (3) edge modeling simulating the specific shape and magnitude of the gradient, and local active segment-based 2D matching. The procedure of updating the edge model makes it possible to easily take into account partially occluded objects. Introducing an active matching reduces drastically confusion and ambiguity cases. The 3D/2D matching of the model is achieved by minimizing the distance between the projected segments of the 3D model and the segments extracted in the 2D image. Results on simulated and real images are presented and discussed, the accuracy of the pose estimation depending mainly on the accuracy of the 3D object model.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Francoise J. Preteux, Sorin Curila, Marius Malciu, "3D object registration in image sequences", Proc. SPIE 3304, Nonlinear Image Processing IX, (6 April 1998); doi: 10.1117/12.304599; http://dx.doi.org/10.1117/12.304599

3D modeling

Image segmentation

3D image processing

Visual process modeling

RGB color model

Feature extraction

Image registration


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