کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6938374 1449926 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High dynamic range 3D shape determination based on automatic exposure selection
ترجمه فارسی عنوان
تعیین شکل پویا با برد بالا بر اساس انتخاب نوردهی خودکار
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر چشم انداز کامپیوتر و تشخیص الگو
چکیده انگلیسی
Traditional multi-exposure based high dynamic range fringe projection profilometry (FPP) technique is an effective method to obtain the 3D profiles of objects with drastic surface reflectivity variations. However, in this technique different exposure times often need to be selected empirically, making this method rather complicated. In this paper a completely automatic multi-exposure based FPP technique is proposed. No human intervention is required while applying the proposed method, which greatly simplify the whole reconstruction process. It is mathematically proved that once a pixel's modulation is larger than a threshold, the phase quality of this pixel can be considered satisfactory. This threshold can be used to guide the calculation of the needed exposure times. The software then automatically adjusts the camera's exposure time and captures the needed fringe images. Experiments show that with these captured images, the final reconstruction with a high dynamic range can be readily obtained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Visual Communication and Image Representation - Volume 50, January 2018, Pages 217-226
نویسندگان
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