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题名: Video Primal Sketch: A Unified Middle-Level Representation for Video
作者: Han Z(韩志); Xu ZB(徐宗本); Zhu SC(朱松纯)
作者部门: 机器人学研究室
关键词: Middle-level vision ; Video representation ; Textured motion ; Dynamic texture synthesis ; Primal sketch
刊名: Journal of Mathematical Imaging and Vision
ISSN号: 0924-9907
出版日期: 2015
卷号: 53, 期号:2, 页码:151-170
收录类别: SCI ; EI
产权排序: 1
摘要: This paper presents a middle-level video representation named video primal sketch (VPS), which integrates two regimes of models: (i) sparse coding model using static or moving primitives to explicitly represent moving corners, lines, feature points, etc., (ii) FRAME /MRF model reproducing feature statistics extracted from input video to implicitly represent textured motion, such as water and fire. The feature statistics include histograms of spatio-temporal filters and velocity distributions. This paper makes three contributions to the literature: (i) Learning a dictionary of video primitives using parametric generative models; (ii) Proposing the spatio-temporal FRAME and motion-appearance FRAME models for modeling and synthesizing textured motion; and (iii) Developing a parsimonious hybrid model for generic video representation. Given an input video, VPS selects the proper models automatically for different motion patterns and is compatible with high-level action representations. In the experiments, we synthesize a number of textured motion; reconstruct real videos using the VPS; report a series of human perception experiments to verify the quality of reconstructed videos; demonstrate how the VPS changes over the scale transition in videos; and present the close connection between VPS and high-level action models. © 2015 Springer Science+Business Media New York
语种: 英语
WOS记录号: WOS:000358323600002
WOS标题词: Science & Technology ; Technology ; Physical Sciences
类目[WOS]: Computer Science, Artificial Intelligence ; Computer Science, Software Engineering ; Mathematics, Applied
关键词[WOS]: DYNAMIC TEXTURES ; TRACKING ; MOTION ; MODELS ; FRAME
研究领域[WOS]: Computer Science ; Mathematics
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内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/15749
Appears in Collections:机器人学研究室_期刊论文

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文件名: Video Primal Sketch_ A Unified Middle-Level Representation for Video.pdf
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