-
Notifications
You must be signed in to change notification settings - Fork 1
/
compact-and-distinctive-visual-vocabularies-efficient-multimedia-data-indexing-0.html
259 lines (219 loc) · 17.1 KB
/
compact-and-distinctive-visual-vocabularies-efficient-multimedia-data-indexing-0.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
<!DOCTYPE html>
<html lang="en" dir="ltr" prefix="content: http://purl.org/rss/1.0/modules/content/ dc: http://purl.org/dc/terms/ foaf: http://xmlns.com/foaf/0.1/ og: http://ogp.me/ns# rdfs: http://www.w3.org/2000/01/rdf-schema# sioc: http://rdfs.org/sioc/ns# sioct: http://rdfs.org/sioc/types# skos: http://www.w3.org/2004/02/skos/core# xsd: http://www.w3.org/2001/XMLSchema#">
<head>
<link rel="profile" href="http://www.w3.org/1999/xhtml/vocab" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="shortcut icon" href="sites/default/files/oswinds_crl.png" type="image/png" />
<link rel="shortlink" href="node/1913.html" />
<link rel="canonical" href="compact-and-distinctive-visual-vocabularies-efficient-multimedia-data-indexing-0.html" />
<meta name="Generator" content="Drupal 7 (http://drupal.org)" />
<title>Compact and Distinctive Visual Vocabularies for Efficient Multimedia Data Indexing | OSWINDS A.U.Th.</title>
<style>
@import url("modules/system/system.base.css%3F.css");
</style>
<style media="screen">
@import url("sites/all/modules/codefilter/codefilter.css%3F.css");
</style>
<style>
@import url("sites/all/modules/date/date_api/date.css%3F.css");
@import url("sites/all/modules/date/date_popup/themes/datepicker.1.7.css%3F.css");
@import url("sites/all/modules/date/date_repeat_field/date_repeat_field.css%3F.css");
@import url("modules/field/theme/field.css%3F.css");
@import url("modules/node/node.css%3F.css");
@import url("sites/all/modules/views/css/views.css%3F.css");
@import url("sites/all/modules/ckeditor/css/ckeditor.css%3F.css");
</style>
<style>
@import url("sites/all/modules/colorbox/styles/default/colorbox_style.css%3F.css");
@import url("sites/all/modules/ctools/css/ctools.css%3F.css");
@import url("sites/all/modules/panels/css/panels.css%3F.css");
@import url("sites/all/modules/biblio/biblio.css%3F.css");
</style>
<link type="text/css" rel="stylesheet" href="https://oswinds.csd.auth.gr/bootstrap.css" media="all" />
<style>
@import url("sites/all/themes/bootstrap/css/3.3.5/overrides-cosmo.min.css%3F.css");
@import url("sites/all/themes/bootstrap_subtheme/css/style.css%3F.css");
@import url("sites/all/themes/bootstrap_subtheme/css/slider.css%3F.css");
@import url("sites/all/themes/bootstrap_subtheme/css/bottom_blocks.css%3F.css");
@import url("sites/all/themes/bootstrap_subtheme/css/refield_blocks.css%3F.css");
@import url("sites/all/themes/bootstrap_subtheme/css/intro_blocks.css%3F.css");
@import url("sites/all/themes/bootstrap_subtheme/css/promo_blocks.css%3F.css");
@import url("sites/all/themes/bootstrap_subtheme/css/super_top.css%3F.css");
@import url("sites/all/themes/bootstrap_subtheme/css/people-page.css%3F.css");
@import url("sites/all/themes/bootstrap_subtheme/css/tools_page.css%3F.css");
</style>
<!-- HTML5 element support for IE6-8 -->
<!--[if lt IE 9]>
<script src="https://cdn.jsdelivr.net/html5shiv/3.7.3/html5shiv-printshiv.min.js"></script>
<![endif]-->
<script src="https://code.jquery.com/jquery-1.9.1.min.js"></script>
<script>window.jQuery || document.write("<script src='sites/all/modules/jquery_update/replace/jquery/1.9/jquery.min.js'>\x3C/script>")</script>
<script src="misc/jquery-extend-3.4.0.js%3Fv=1.9.1"></script>
<script src="misc/jquery.once.js%3Fv=1.2"></script>
<script src="misc/drupal.js%3F"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@3.3.5/dist/js/bootstrap.js"></script>
<script src="sites/all/modules/admin_menu/admin_devel/admin_devel.js%3F"></script>
<script src="sites/all/modules/codefilter/codefilter.js%3F"></script>
<script src="sites/all/libraries/colorbox/jquery.colorbox-min.js%3F"></script>
<script src="sites/all/modules/colorbox/js/colorbox.js%3F"></script>
<script src="sites/all/modules/colorbox/styles/default/colorbox_style.js%3F"></script>
<script>jQuery.extend(Drupal.settings, {"basePath":"\/","pathPrefix":"","ajaxPageState":{"theme":"bootstrap_subtheme","theme_token":"yGcmO1sNP6e78yFDo8R7rw0MKEc6mDZ-fAMGRv46bz8","js":{"sites\/all\/themes\/bootstrap\/js\/bootstrap.js":1,"\/\/code.jquery.com\/jquery-1.9.1.min.js":1,"0":1,"misc\/jquery-extend-3.4.0.js":1,"misc\/jquery.once.js":1,"misc\/drupal.js":1,"https:\/\/cdn.jsdelivr.net\/npm\/bootstrap@3.3.5\/dist\/js\/bootstrap.js":1,"sites\/all\/modules\/admin_menu\/admin_devel\/admin_devel.js":1,"sites\/all\/modules\/codefilter\/codefilter.js":1,"sites\/all\/libraries\/colorbox\/jquery.colorbox-min.js":1,"sites\/all\/modules\/colorbox\/js\/colorbox.js":1,"sites\/all\/modules\/colorbox\/styles\/default\/colorbox_style.js":1},"css":{"modules\/system\/system.base.css":1,"sites\/all\/modules\/codefilter\/codefilter.css":1,"sites\/all\/modules\/date\/date_api\/date.css":1,"sites\/all\/modules\/date\/date_popup\/themes\/datepicker.1.7.css":1,"sites\/all\/modules\/date\/date_repeat_field\/date_repeat_field.css":1,"modules\/field\/theme\/field.css":1,"modules\/node\/node.css":1,"sites\/all\/modules\/views\/css\/views.css":1,"sites\/all\/modules\/ckeditor\/css\/ckeditor.css":1,"sites\/all\/modules\/colorbox\/styles\/default\/colorbox_style.css":1,"sites\/all\/modules\/ctools\/css\/ctools.css":1,"sites\/all\/modules\/panels\/css\/panels.css":1,"sites\/all\/modules\/biblio\/biblio.css":1,"https:\/\/cdn.jsdelivr.net\/npm\/bootswatch@3.3.5\/cosmo\/bootstrap.css":1,"sites\/all\/themes\/bootstrap\/css\/3.3.5\/overrides-cosmo.min.css":1,"sites\/all\/themes\/bootstrap_subtheme\/css\/style.css":1,"sites\/all\/themes\/bootstrap_subtheme\/css\/slider.css":1,"sites\/all\/themes\/bootstrap_subtheme\/css\/bottom_blocks.css":1,"sites\/all\/themes\/bootstrap_subtheme\/css\/refield_blocks.css":1,"sites\/all\/themes\/bootstrap_subtheme\/css\/intro_blocks.css":1,"sites\/all\/themes\/bootstrap_subtheme\/css\/promo_blocks.css":1,"sites\/all\/themes\/bootstrap_subtheme\/css\/super_top.css":1,"sites\/all\/themes\/bootstrap_subtheme\/css\/people-page.css":1,"sites\/all\/themes\/bootstrap_subtheme\/css\/tools_page.css":1}},"colorbox":{"opacity":"0.85","current":"{current} of {total}","previous":"\u00ab Prev","next":"Next \u00bb","close":"Close","maxWidth":"98%","maxHeight":"98%","fixed":true,"mobiledetect":true,"mobiledevicewidth":"480px"},"bootstrap":{"anchorsFix":"0","anchorsSmoothScrolling":"0","formHasError":1,"popoverEnabled":1,"popoverOptions":{"animation":1,"html":0,"placement":"right","selector":"","trigger":"click","triggerAutoclose":1,"title":"","content":"","delay":0,"container":"body"},"tooltipEnabled":1,"tooltipOptions":{"animation":1,"html":0,"placement":"auto left","selector":"","trigger":"hover focus","delay":0,"container":"body"}}});</script>
</head>
<body class="navbar-is-static-top html not-front not-logged-in no-sidebars page-node page-node- page-node-1913 node-type-biblio">
<div id="skip-link">
<a href="compact-and-distinctive-visual-vocabularies-efficient-multimedia-data-indexing-0.html#main-content" class="element-invisible element-focusable">Skip to main content</a>
</div>
<header id="navbar" role="banner" class="navbar navbar-static-top navbar-default">
<div class="row fluid-container super-top">
<div class="container">
<div class="row">
<div class="col-lg-4 col-md-4 col-sm-10 col-xs-10">
</div>
<div class="col-lg-8 col-md-8 col-sm-2 col-xs-2 pull-right">
</div>
</div>
</div>
</div>
<div class="container">
<div class="navbar-header">
<div>
<div class="col-lg-4 col-md-3 col-sm-10 col-xs-10">
<a class="logo navbar-btn pull-left" href="index.html" title="Home">
<img id="logo-top" src="sites/default/files/oswinds_v2.png" alt="Home" />
</a>
</div>
<div class="col-lg-8 col-md-9 col-sm-2 col-xs-2">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
</div>
</div>
<div class="navbar-collapse collapse">
<nav role="navigation">
<ul class="menu nav navbar-nav"><li class="first leaf"><a href="index.html">Home</a></li>
<li class="leaf"><a href="about-us.html">About us</a></li>
<li class="leaf"><a href="courses/undergraduate.html" title="">Courses</a></li>
<li class="leaf"><a href="completed-theses.html" title="">Completed Theses</a></li>
<li class="leaf"><a href="publications/filter/clear%3Fpage=6.html" title="">Publications</a></li>
<li class="leaf"><a href="projects.html" title="">Projects</a></li>
<li class="leaf"><a href="tools-and-apps.html" title="">Tools & Apps</a></li>
<li class="leaf"><a href="people/faculty.html" title="">People</a></li>
<li class="leaf"><a href="news.html" title="">News</a></li>
<li class="last leaf"><a href="contact.html">Contact</a></li>
</ul> </nav>
</div>
</div>
</header>
<div class="fluid-container">
</div>
<div class="row refield-blocks">
<!-- /.refield_first -->
<!-- /.refield_second -->
<!-- /.refield_third -->
<!-- /.refield_forth -->
<!-- /.refield_fifth -->
</div>
<div class="main-container container">
<header role="banner" id="page-header">
</header> <!-- /#page-header -->
<div class="row">
<section class="col-sm-12">
<a id="main-content"></a>
<h1 class="page-header">Compact and Distinctive Visual Vocabularies for Efficient Multimedia Data Indexing</h1>
<div class="region region-content">
<section id="block-system-main" class="block block-system clearfix">
<article id="node-1913" class="node node-biblio clearfix" about="/compact-and-distinctive-visual-vocabularies-efficient-multimedia-data-indexing-0" typeof="sioc:Item foaf:Document">
<header>
<span property="dc:title" content="Compact and Distinctive Visual Vocabularies for Efficient Multimedia Data Indexing" class="rdf-meta element-hidden"></span><span property="sioc:num_replies" content="0" datatype="xsd:integer" class="rdf-meta element-hidden"></span> </header>
<div id="biblio-node"><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Compact+and+Distinctive+Visual+Vocabularies+for+Efficient+Multimedia+Data+Indexing&rft.date=2013"></span><div class="table-responsive">
<table class="table table-hover table-striped">
<tbody>
<tr><td class="biblio-row-title">Title</td><td>Compact and Distinctive Visual Vocabularies for Efficient Multimedia Data Indexing</td> </tr>
<tr><td class="biblio-row-title">Publication Type</td><td>Conference Paper</td> </tr>
<tr><td class="biblio-row-title">Year of Publication</td><td>2013</td> </tr>
<tr><td class="biblio-row-title">Abstract</td><td><p>Multimedia data indexing for content-based retrieval has attractedsignificant attention in recent years due to the commoditizationof multimedia capturing equipment and the widespread adoption of social networking platforms as means for sharing media content online. Due to the very large amounts of multimedia content, notably images, produced and shared online by people, a very important requirement for multimedia indexing approaches pertains to their efficiency both in terms of computation and memory usage. A common approach to support query-by-example image search is based on the extraction of visual words from images and their indexing by means of inverted indices, a method proposed and popularized in the field of text retrieval.The main challenge that visual word indexing systems currently facearises from the fact that it is necessary to build very large visual vocabularies (hundreds of thousands or even millions of words) to support sufficiently precise search. However, when the visual vocabulary is large,the image indexing process becomes computationally expensive due to the fact that the local image descriptors (e.g. SIFT) need to be quantized to the nearest visual words.To this end, this paper proposes a novel method that significantly decreases the time required for the above quantization process. Instead of using hundreds of thousands of visual words for quantization, the proposed method manages to preserve retrieval quality by using a much smaller number of words for indexing. This is achieved by the concept of composite words, i.e. assigning multiple words to a local descriptor in ascending order of distance. We evaluate the proposed method in the Oxford and Paris buildings datasets to demonstrate the validity of the proposed approach.</p>
</td> </tr>
</tbody>
</table>
</div>
</div><div class="field field-name-field-pdf field-type-file field-label-inline clearfix"><div class="field-label">PDF: </div><div class="field-items"><div class="field-item even"><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="modules/file/icons/application-pdf.png" /> <a href="sites/default/files/publications/pdf/C92.pdf" type="application/pdf; length=508254">C92.pdf</a></span></div></div></div> <footer>
<ul class="links list-inline"><li class="0 first"><a href="http://scholar.google.com/scholar?btnG=Search%2BScholar&as_q=%22Compact%2Band%2BDistinctive%2BVisual%2BVocabularies%2Bfor%2BEfficient%2BMultimedia%2BData%2BIndexing%22&as_occt=any&as_epq=&as_oq=&as_eq=&as_publication=&as_ylo=&as_yhi=&as_sdtAAP=1&as_sdtp=1" title="Click to search Google Scholar for this entry" rel="nofollow">Google Scholar</a></li>
<li class="biblio_bibtex"><a href="publications/export/bibtex/1913" title="Click to download the BibTEX formatted file" rel="nofollow">BibTex</a></li>
<li class="biblio_tagged"><a href="publications/export/tagged/1913" title="Click to download the EndNote Tagged formatted file" rel="nofollow">Tagged</a></li>
<li class="biblio_xml last"><a href="publications/export/xml/1913" title="Click to download the EndNote XML formatted file" rel="nofollow">XML</a></li>
</ul> </footer>
</article>
</section>
</div>
</section>
</div>
</div>
<div class="row bottom-blocks">
<div class="container">
<div class="fluid-container bottom-first col-lg-3 col-md-6 col-sm-12 col-xs-12">
<div class="region region-bottom-first">
<section id="block-block-15" class="block block-block clearfix">
<p class="rtecenter"><img alt="auth logo" src="sites/default/files/AUTH_BANNER_WHITE.png" style="height:72px; margin-bottom:5px; margin-top:5px; width:220px" /></p>
<p class="rtecenter"><img alt="" src="sites/default/files/oswinds_v2_blck.png" style="height:65px; width:200px" /></p>
</section>
</div>
</div>
<!-- /.bottom_first -->
<div class="fluid-container bottom-second col-lg-3 col-md-6 col-sm-12 col-xs-12">
<div class="region region-bottom-second">
<section id="block-block-2" class="block block-block clearfix">
<h2 class="block-title">Useful Links</h2>
<p><a href="http://www.auth.gr" target="_blank">Aristotle University of Thessaloniki</a></p>
<p><a href="http://www.csd.auth.gr/en/" target="_blank">Department of Informatics</a></p>
<p><a href="http://maps.auth.gr/" target="_blank">University Maps</a></p>
</section>
</div>
</div>
<!-- /.bottom_second -->
<div class="fluid-container bottom-third col-lg-3 col-md-6 col-sm-12 col-xs-12">
<div class="region region-bottom-third">
<section id="block-block-3" class="block block-block clearfix">
<h2 class="block-title">Location & Contact</h2>
<p>Department of Informatics<br />
Aristotle University of Thessaloniki<br />
Thessaloniki GR-54124</p>
<p>t | (+30) 2310 998415<br />
e | <a href="mailto:oswinds@csd.auth.gr">oswinds@csd.auth.gr</a></p>
</section>
</div>
</div>
<!-- /.bottom_third -->
<div class="fluid-container bottom-forth col-lg-3 col-md-6 col-sm-12 col-xs-12">
<div class="region region-bottom-forth">
<section id="block-views-map-block-block-1" class="block block-views clearfix">
<div class="view view-map-block view-id-map_block view-display-id-block_1 view-dom-id-ccd00596d39fcb7b69a84d49f10ecdde">
<div class="view-content">
<div class="views-row views-row-1 views-row-odd views-row-first views-row-last">
<div class="views-field views-field-field-gmap"> <div class="field-content"><iframe width="100%" height="220" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="https://maps.google.com/maps?hl=en&q=Ethnikis+Antistasis+16%2C+Kalamaria%2C+Thessaloniki&iwloc=A&z=14&t=m&output=embed"></iframe>
</div> </div> </div>
</div>
</div>
</section>
</div>
</div>
<!-- /.bottom_forth -->
</div>
</div>
<footer class="footer">
<div class="container">
<div class="region region-footer">
<section id="block-block-14" class="block block-block clearfix">
<p class="rtecenter">© 2016 OSWINDS Research Group</p>
<p class="rtecenter"><a href="https://www.facebook.com/oswinds/" target="_blank">Facebook</a> <a href="https://twitter.com/oswinds_auth" target="_blank">Twitter</a> LinkedIn <a href="https://github.com/OSWINDS" target="_blank">Github</a></p>
</section>
</div>
</div>
</footer>
<script src="sites/all/themes/bootstrap/js/bootstrap.js%3F"></script>
</body>
</html>