کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
528983 869622 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Video-based, real-time multi-view stereo
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر چشم انداز کامپیوتر و تشخیص الگو
پیش نمایش صفحه اول مقاله
Video-based, real-time multi-view stereo
چکیده انگلیسی

We investigate the problem of obtaining a dense reconstruction in real-time, from a live video stream. In recent years, multi-view stereo (MVS) has received considerable attention and a number of methods have been proposed. However, most methods operate under the assumption of a relatively sparse set of still images as input and unlimited computation time. Video based MVS has received less attention despite the fact that video sequences offer significant benefits in terms of usability of MVS systems. In this paper we propose a novel video based MVS algorithm that is suitable for real-time, interactive 3d modeling with a hand-held camera. The key idea is a per-pixel, probabilistic depth estimation scheme that updates posterior depth distributions with every new frame. The current implementation is capable of updating 15 million distributions/s. We evaluate the proposed method against the state-of-the-art real-time MVS method and show improvement in terms of accuracy.

Research Highlights
► A probabilistic treatment of occlusion robust photo-consistency.
► A parametric approximation to the full probabilistic inference problem that makes the real-time Bayesian MVS problem tractable.
► A video based MVS system that is shown to process video input in real-time (60 Hz) while providing intermediate reconstruction results as user feedback.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Image and Vision Computing - Volume 29, Issue 7, June 2011, Pages 434–441
نویسندگان
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