کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
527952 869435 2009 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Resolution analysis for Gradient Direction Matching of object model edges to overhead images
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر چشم انداز کامپیوتر و تشخیص الگو
پیش نمایش صفحه اول مقاله
Resolution analysis for Gradient Direction Matching of object model edges to overhead images
چکیده انگلیسی

The problem of computer-assisted broad area search for specific objects of interest in overhead images is considered. To this end, we present a novel efficient Gradient Direction Matching (GDM) algorithm that matches gradient directions associated with object edges to pixel gradient directions (as opposed to image edges, which are less reliable). GDM seamlessly integrates information associated with pixel location and orientation in such a way that the FFT can be exploited for computational efficiency, and it inherently rejects background clutter. The effects of spatial resolution on GDM statistical performance are studied empirically with the goal of gaining insight into how far GDM computational cost can be reduced before matching performance becomes too severely compromised.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Vision and Image Understanding - Volume 113, Issue 2, February 2009, Pages 235–248
نویسندگان
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