7 papers
CNN-VWII: An Efficient Approach for Large-Scale Video Retrieval by Image Queries
Chengyuan Zhang, Yunwu Lin, Lei Zhu +3
This paper aims to solve the problem of large-scale video retrieval by a query image. Firstly, we define the problem of top- image to video query. Then, we combine the merits of…
SVS-JOIN: Efficient Spatial Visual Similarity Join over Multimedia Data
Chengyuan Zhang, Ruipeng Chen, Lei Zhu +3
In the big data era, massive amount of multimedia data with geo-tags has been generated and collected by mobile smart devices equipped with mobile communications module and positio…
Efficient Multimedia Similarity Measurement Using Similar Elements
Chengyuan Zhang, Yunwu Lin, Lei Zhu +3
Online social networking techniques and large-scale multimedia systems are developing rapidly, which not only has brought great convenience to our daily life, but generated, collec…
Efficient Region of Visual Interests Search for Geo-multimedia Data
Chengyuan Zhang, Yunwu Lin, Lei Zhu +3
With the proliferation of online social networking services and mobile smart devices equipped with mobile communications module and position sensor module, massive amount of multim…
Efficient Interactive Search for Geo-tagged Multimedia Data
Jun Long, Lei Zhu, Chengyuan Zhang +3
Due to the advances in mobile computing and multimedia techniques, there are vast amount of multimedia data with geographical information collected in multifarious applications. In…
Hierarchical Information Quadtree: Efficient Spatial Temporal Image Search for Multimedia Stream
Chengyuan Zhang, Ruipeng Chen, Lei Zhu +3
Massive amount of multimedia data that contain times- tamps and geographical information are being generated at an unprecedented scale in many emerging applications such as photo s…