کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4968971 | 1449842 | 2017 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Compression of Probabilistic Volumetric Models using multi-resolution scene flow
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
چشم انداز کامپیوتر و تشخیص الگو
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This paper presents a novel method to estimate dense scene flow using volumetric and probabilistic 3-d models. The method first reconstructs 3-d models at each time step using images synchronously captured from multiple views. Then, the 3-d motion between two consecutive 3-d models is estimated using a formulation that is the analog of Horn and Schunck's optical flow method. This particular choice of 3-d model representation allows estimating highly dense scene flow results, tracking of surfaces undergoing topological change and reliably recovering large motion displacements. The benefits of the method and the accuracy of 3-d flow results are demonstrated on recent multi-view datasets. The second goal of this work is to compress and reconstruct 3-d scenes at various time points using the estimated flow. A new method of scene warping is proposed that involves partitioning the optical flow field in regions of coherent motion which are subsequently parametrized by affine transformations. The compression objective of this work is achieved by the low storage requirements of the affine parameters that describe the optical flow field and the efficient reconstruction method through warping.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Image and Vision Computing - Volume 64, August 2017, Pages 79-89
Journal: Image and Vision Computing - Volume 64, August 2017, Pages 79-89
نویسندگان
Octavian Biris, Ali O. Ulusoy, Joseph L. Mundy,