Paper
26 February 2008 Determining canonical views of 3D object using minimum description length criterion and compressive sensing method
Ping-Feng Chen, Hamid Krim
Author Affiliations +
Proceedings Volume 6814, Computational Imaging VI; 68140R (2008) https://doi.org/10.1117/12.775057
Event: Electronic Imaging, 2008, San Jose, California, United States
Abstract
In this paper, we propose using two methods to determine the canonical views of 3D objects: minimum description length (MDL) criterion and compressive sensing method. MDL criterion searches for the description length that achieves the balance between model accuracy and parsimony. It takes the form of the sum of a likelihood and a penalizing term, where the likelihood is in favor of model accuracy such that more views assists the description of an object, while the second term penalizes lengthy description to prevent overfitting of the model. In order to devise the likelihood term, we propose a model to represent a 3D object as the weighted sum of multiple range images, which is used in the second method to determine the canonical views as well. In compressive sensing method, an intelligent way of parsimoniously sampling an object is presented. We make direct inference from Donoho1 and Candes'2 work, and adapt it to our model. Each range image is viewed as a projection, or a sample, of a 3D model, and by using compressive sensing theory, we are able to reconstruct the object with an overwhelming probability by scarcely sensing the object in a random manner. Compressive sensing is different from traditional compressing method in the sense that the former compress things in the sampling stage while the later collects a large number of samples and then compressing mechanism is carried out thereafter. Compressive sensing scheme is particularly useful when the number of sensors are limited or the sampling machinery cost much resource or time.
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Ping-Feng Chen and Hamid Krim "Determining canonical views of 3D object using minimum description length criterion and compressive sensing method", Proc. SPIE 6814, Computational Imaging VI, 68140R (26 February 2008); https://doi.org/10.1117/12.775057
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KEYWORDS
3D modeling

Compressed sensing

3D image processing

3D vision

3D scanning

Image fusion

Laser scanners

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