Searching for the most similar matches to high dimensional feature vectors is the most computationally expensive part of many computer vision and document retrieval systems. This work proposes a time-efficient document retrieval system based on logo spotting. The spotting approach is based on feature matching and grouping. In order to reduce the number of key- point features to be matched, we propose to utilize a text/non-text separation method to get rid ABSTRACT.of text layer features which are irrelevant to logo matching. The separation method is used as a fast and effective preprocessing step. We further optimize the key-point feature matching step by using an approximate nearest neighbor search algorithms. The overall document retrieval with focused logo retrieval is evaluated on the standard Tobacco-800 database and also our private advertisement magazine database. The results show that the two proposed speed up steps – specially the text separation – reduce the computation time of the system sharply by 75% and 47% on the two databases respectively, while its precision remains unaffected.
Tạp chí: 9th Vietnamese-Hungarian international conference, Research for developing sustainable agriculture, TraVinh university from September 21st- 22nd
Tạp chí: The 3rd International Postgraduate Symposium on Food, Agriculture and Biotechnology in ASEAN (IPSFAB2016). Mahasarakham University, Mahasarakham, Thailand. 7-8 September 2016
Tạp chí: Investigations into Professional Practice Learning from Action Research Projects Australia & Southeast Asia - University of Sydney & Nakhon Si Thammarat Rajabhat University, Thailand July, 2016
Tạp chí: The Asian Conference on Language Learning 2016: Official Conference Proceedings. Conference Theme: “Convergence and Divergence”. April 28 – Sunday, May 1 2016, Kobe, Japan. ISSN: 2186-4691
Tạp chí: UP-SURP International Conference on “Developing Sustainable and Resilient Rural Communities in the Midst of Climate Change: A Challenges to Disaster Preparedness and Mitigation Strategies”, Quezon City, Metro Manila, Philippines
Tạp chí: A connected ocean: new approaches, new technologies, new challenges for knowledge of ocean processes (ACO 2016), 11-13 Oct 2016, Brest city, France
Tạp chí khoa học Trường Đại học Cần Thơ
Lầu 4, Nhà Điều Hành, Khu II, đường 3/2, P. Xuân Khánh, Q. Ninh Kiều, TP. Cần Thơ
Điện thoại: (0292) 3 872 157; Email: tapchidhct@ctu.edu.vn
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