کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6949156 1451234 2018 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Near real-time shadow detection and removal in aerial motion imagery application
ترجمه فارسی عنوان
نزدیک به زمان واقعی تشخیص سایه و حذف در برنامه تصاویر حرکت هوایی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر سیستم های اطلاعاتی
چکیده انگلیسی
This work presents a method to automatically detect and remove shadows in urban aerial images and its application in an aerospace remote monitoring system requiring near real-time processing. Our detection method generates shadow masks and is accelerated by GPU programming. To obtain the shadow masks, we converted images from RGB to CIELCh model, calculated a modified Specthem ratio, and applied multilevel thresholding. Morphological operations were used to reduce shadow mask noise. The shadow masks are used in the process of removing shadows from the original images using the illumination ratio of the shadow/non-shadow regions. We obtained shadow detection accuracy of around 93% and shadow removal results comparable to the state-of-the-art while maintaining execution time under real-time constraints.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: ISPRS Journal of Photogrammetry and Remote Sensing - Volume 140, June 2018, Pages 104-121
نویسندگان
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