Bag-of-Visual-Words vs Global Image Descriptors on Two-Stage Multimodal Retrieval

被引:0
|
作者
Zagoris, Konstantinos [1 ]
Chatzichristofis, Savvas A. [1 ]
Arampatzis, Avi [1 ]
机构
[1] Democritus Univ Thrace, Dept Elect & Comp Engn, Xanthi 67100, Greece
关键词
Image Retrieval; Bag-Of-Visual-Words; Two-Stage Retrieval;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The Bag-Of-Visual-Words (BOVW) paradigm is fast becoming a popular image representation for Content-Based Image Retrieval (CBIR), mainly because of its better retrieval effectiveness over global feature representations on collections with images being near-duplicate to queries. In this experimental study we demonstrate that this advantage of BOVW is diminished when visual diversity is enhanced by using a secondary modality, such as text, to pre-filter images. The TOP-SURF descriptor is evaluated against Compact Composite Descriptors on a two-stage image retrieval setup, which first uses a text modality to rank the collection and then perform CBIR only on the top-K items.
引用
收藏
页码:1251 / 1252
页数:2
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