https://scholars.lib.ntu.edu.tw/handle/123456789/412938
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Kuo Y.-H. | en_US |
dc.contributor.author | Chen K.-T. | en_US |
dc.contributor.author | Chiang C.-H. | en_US |
dc.contributor.author | WINSTON HSU | en_US |
dc.creator | Hsu W.H.;Chiang C.-H.;Chen K.-T.;Kuo Y.-H. | - |
dc.date.accessioned | 2019-07-10T02:41:57Z | - |
dc.date.available | 2019-07-10T02:41:57Z | - |
dc.date.issued | 2009 | - |
dc.identifier.isbn | 9781605586083 | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/412938 | - |
dc.description.abstract | An efficient indexing method is essential for content-based image retrieval with the exponential growth in large-scale videos and photos. Recently, hash-based methods (e.g., locality sensitive hashing - LSH) have been shown efficient for similarity search. We extend such hash-based methods for retrieving images represented by bags of (high-dimensional) feature points. Though promising, the hash-based image object search suffers from low recall rates. To boost the hash-based search quality, we propose two novel expansion strategies - intra-expansion and inter-expansion. The former expands more target feature points similar to those in the query and the latter mines those feature points that shall co-occur with the search targets but not present in the query. We further exploit variations for the proposed methods. Experimenting in two consumer-photo benchmarks, we will show that the proposed expansion methods are complementary to each other and can collaboratively contribute up to 76.3% (average) relative improvement over the original hash-based method. Copyright 2009 ACM. | - |
dc.language | English | - |
dc.relation.ispartof | 2009 ACM Multimedia Conference | - |
dc.subject | Locality sensitive hashing (LSH); Query expansion | - |
dc.title | Query expansion for hash-based image object retrieval | en_US |
dc.type | conference paper | en |
dc.identifier.doi | 10.1145/1631272.1631284 | - |
dc.identifier.scopus | 2-s2.0-72449144858 | - |
dc.relation.pages | 65-74 | - |
item.openairecristype | http://purl.org/coar/resource_type/c_5794 | - |
item.openairetype | conference paper | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
item.fulltext | no fulltext | - |
crisitem.author.dept | Networking and Multimedia | - |
crisitem.author.dept | Computer Science and Information Engineering | - |
crisitem.author.dept | MediaTek-NTU Research Center | - |
crisitem.author.orcid | 0000-0002-3330-0638 | - |
crisitem.author.parentorg | College of Electrical Engineering and Computer Science | - |
crisitem.author.parentorg | College of Electrical Engineering and Computer Science | - |
crisitem.author.parentorg | Others: University-Level Research Centers | - |
顯示於: | 資訊工程學系 |
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