講演名 | 2006/1/3 SPHERICAL WAVELET DESCRIPTORS FOR CONTENT BASED 3D MODEL RETRIEVAL(International Workshop on Advanced Image Technology 2006) , |
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抄録(英) | The description of 3D shapes with features that possess descriptive power is one of the most challenging issues in content based 3D model retrieval. In this paper we propose the usage of spherical wavelet transform as a tool for the analysis of 3D shapes represented by functions on the unit sphere. We introduce three new shape descriptors extracted from the spherical wavelet coefficients, namely : (1) a subset of the spherical wavelet coefficients, (2) the L_1 and, (3) the L_2 energies of the spherical wavelet sub-bands. The advantage of this tool is three fold : First, it filters out small shape details which hamper the retrieval performance. Second, it takes into account feature localization and local orientations. Third, it allows shape matching at different resolutions. Spherical wavelet descriptors are natural extension of 3D Zernike moments and spherical harmonics. We evaluate, on the Princeton Shape Benchmark, the proposed descriptors regarding computational aspects and shape retrieval performance. |
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資料番号 | IE2005-194 |
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研究会 | IE |
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開催期間 | 2006/1/3(から1日開催) |
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申込み研究会 | Image Engineering (IE) |
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本文の言語 | ENG |
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タイトル(英) | SPHERICAL WAVELET DESCRIPTORS FOR CONTENT BASED 3D MODEL RETRIEVAL(International Workshop on Advanced Image Technology 2006) |
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キーワード(1)(和/英) | |
第 1 著者 氏名(和/英) | / Hamid Laga |
第 1 著者 所属(和/英) | Graduate School of Information Science and Engineering, Tokyo Institute of Technology |
発表年月日 | 2006/1/3 |
資料番号 | IE2005-194 |
巻番号(vol) | vol.105 |
号番号(no) | 501 |
ページ範囲 | pp.- |
ページ数 | 6 |
発行日 |