کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
529140 869632 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Affine hull based target representation for visual tracking
ترجمه فارسی عنوان
نمایندگی هدف مبتنی بر بدنه برای ردیابی بصری
کلمات کلیدی
ردیابی ویژوال فیلتر ذرات، بدنه هیستوگرام کدهای ناقص، مدل ظاهر، نمایندگی هدف ردیابی ژنراتور، مجموعه الگو
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر چشم انداز کامپیوتر و تشخیص الگو
چکیده انگلیسی


• A novel appearance model based on template set and affine hull.
• A novel template update scheme based on the importance and recentness of templates.
• A novel likelihood by using both residuals and template coefficient vector.

Handling appearance variations is a challenging issue in visual tracking. Existing appearance models are usually built upon a linear combination of templates. With such kind of representation, accurate visual tracking is not desirable when heavy appearance variations are in presence. Under the framework of particle filtering, we propose a novel target representation for tracking. Namely, the target candidates are represented by affine combinations of a template set, which leads to better capability in describing unseen target appearances. Additionally, in order to adapt this representation to dynamic contexts across a video sequence, a novel template update scheme is presented. Different from conventional approaches, the scheme considers both the importance of one template to a target candidate in the current frame and the recentness of the template that is kept in the template set. Comprehensive experiments show that the proposed algorithm achieves superior performances in comparison with state-of-the-art works.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Visual Communication and Image Representation - Volume 30, July 2015, Pages 266–276
نویسندگان
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