| 3D localization of circular feature in 2D image and application to food volume estimation. | |
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MedLine Citation:
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PMID: 23366939 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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A novel method to estimate the 3D location of a circular feature from a 2D image is presented and applied to the problem of objective dietary assessment from images taken by a wearable device. Instead of using a common reference (e.g., a checkerboard card), we use a food container (e.g., a circular plate) as a necessary reference before the volumetric measurement. In this paper, we establish a mathematical model formulating the system involving a camera and a circular object in a 3D space and, based on this model, the food volume is calculated. Our experiments showed that, for 240 pictures of a variety of regular objects and food replicas, the relative error of the image-based volume estimation was less than 10% in 224 pictures. |
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Authors:
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Wenyan Jia; Yaofeng Yue; John D Fernstrom; Zhengnan Zhang; Yongquan Yang; Mingui Sun |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference Volume: 2012 ISSN: 1557-170X ISO Abbreviation: Conf Proc IEEE Eng Med Biol Soc Publication Date: 2012 Aug |
Date Detail:
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Created Date: 2013-01-31 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101243413 Medline TA: Conf Proc IEEE Eng Med Biol Soc Country: United States |
Other Details:
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Languages: eng Pagination: 4545-8 Citation Subset: IM |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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