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Discovering thematic objects in image collections and videos

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Discovering thematic objects in image collections and videos
นักวิจัย : Yuan, Junsong , Zhao, Gangqiang , Fu, Yun , Li, Zhu , Katsaggelos, Aggelos K. , Wu, Ying
คำค้น : DRNTU::Engineering::Electrical and electronic engineering.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2554
อ้างอิง : 1057-7149 , http://hdl.handle.net/10220/13463 , http://dx.doi.org/10.1109/TIP.2011.2181952
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : IEEE transactions on image processing
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Given a collection of images or a short video sequence, we define a thematic object as the key object that frequently appears and is the representative of the visual contents. Successful discovery of the thematic object is helpful for object search and tagging, video summarization and understanding, etc. However, this task is challenging because 1) there lacks a priori knowledge of the thematic objects, such as their shapes, scales, locations, and times of re-occurrences, and 2) the thematic object of interest can be under severe variations in appearances due to viewpoint and lighting condition changes, scale variations, etc. Instead of using a top-down generative model to discover thematic visual patterns, we propose a novel bottom-up approach to gradually prune uncommon local visual primitives and recover the thematic objects. A multilayer candidate pruning procedure is designed to accelerate the image data mining process. Our solution can efficiently locate thematic objects of various sizes and can tolerate large appearance variations of the same thematic object. Experiments on challenging image and video data sets and comparisons with existing methods validate the effectiveness of our method.

บรรณานุกรม :
Yuan, Junsong , Zhao, Gangqiang , Fu, Yun , Li, Zhu , Katsaggelos, Aggelos K. , Wu, Ying . (2554). Discovering thematic objects in image collections and videos.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Yuan, Junsong , Zhao, Gangqiang , Fu, Yun , Li, Zhu , Katsaggelos, Aggelos K. , Wu, Ying . 2554. "Discovering thematic objects in image collections and videos".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Yuan, Junsong , Zhao, Gangqiang , Fu, Yun , Li, Zhu , Katsaggelos, Aggelos K. , Wu, Ying . "Discovering thematic objects in image collections and videos."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2554. Print.
Yuan, Junsong , Zhao, Gangqiang , Fu, Yun , Li, Zhu , Katsaggelos, Aggelos K. , Wu, Ying . Discovering thematic objects in image collections and videos. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2554.