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Proceedings Paper

Volume estimation using food specific shape templates in mobile image-based dietary assessment
Author(s): Junghoon Chae; Insoo Woo; SungYe Kim; Ross Maciejewski; Fengqing Zhu; Edward J. Delp; Carol J. Boushey; David S. Ebert
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Paper Abstract

As obesity concerns mount, dietary assessment methods for prevention and intervention are being developed. These methods include recording, cataloging and analyzing daily dietary records to monitor energy and nutrient intakes. Given the ubiquity of mobile devices with built-in cameras, one possible means of improving dietary assessment is through photographing foods and inputting these images into a system that can determine the nutrient content of foods in the images. One of the critical issues in such the image-based dietary assessment tool is the accurate and consistent estimation of food portion sizes. The objective of our study is to automatically estimate food volumes through the use of food specific shape templates. In our system, users capture food images using a mobile phone camera. Based on information (i.e., food name and code) determined through food segmentation and classification of the food images, our system choose a particular food template shape corresponding to each segmented food. Finally, our system reconstructs the three-dimensional properties of the food shape from a single image by extracting feature points in order to size the food shape template. By employing this template-based approach, our system automatically estimates food portion size, providing a consistent method for estimation food volume.

Paper Details

Date Published: 7 February 2011
PDF: 8 pages
Proc. SPIE 7873, Computational Imaging IX, 78730K (7 February 2011); doi: 10.1117/12.876669
Show Author Affiliations
Junghoon Chae, Purdue Univ. (United States)
Insoo Woo, Purdue Univ. (United States)
SungYe Kim, Purdue Univ. (United States)
Ross Maciejewski, Purdue Univ. (United States)
Fengqing Zhu, Purdue Univ. (United States)
Edward J. Delp, Purdue Univ. (United States)
Carol J. Boushey, Purdue Univ. (United States)
David S. Ebert, Purdue Univ. (United States)

Published in SPIE Proceedings Vol. 7873:
Computational Imaging IX
Charles A. Bouman; Ilya Pollak; Patrick J. Wolfe, Editor(s)

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