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» Computing Pose Sequences Directly from Videos
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CHI
2009
ACM
14 years 9 months ago
Ptz control with head tracking for video chat
This paper describes a user interface for video chat that is capable of panning, tilting, and zooming (PTZ) operation using head tracking. The approach is to map a captured 3D pos...
Kota Yamaguchi, Takashi Komuro, Masatoshi Ishikawa
MM
2003
ACM
241views Multimedia» more  MM 2003»
14 years 2 months ago
Invariance in motion analysis of videos
In this paper, we propose an approach that retrieves motion of objects from the videos based on the dynamic time warping of view invariant characteristics. The motion is represent...
Cen Rao, Mubarak Shah, Tanveer Fathima Syeda-Mahmo...
ICCV
2003
IEEE
14 years 10 months ago
A Class of Photometric Invariants: Separating Material from Shape and Illumination
We derive a new class of photometric invariants that can be used for a variety of vision tasks including lighting invariant material segmentation, change detection and tracking, a...
Srinivasa G. Narasimhan, Visvanathan Ramesh, Shree...
ICCV
2007
IEEE
14 years 10 months ago
Optimization and Learning for Registration of Moving Dynamic Textures
We address the problem of registering a sequence of images in a moving dynamic texture video. This involves optimization with respect to camera motion, the average image, and the ...
Junzhou Huang, Xiaolei Huang, Dimitris N. Metaxas
CVPR
2012
IEEE
11 years 11 months ago
Video segmentation by tracing discontinuities in a trajectory embedding
Our goal is to segment a video sequence into moving objects and the world scene. In recent work, spectral embedding of point trajectories based on 2D motion cues accumulated from ...
Katerina Fragkiadaki, Geng Zhang, Jianbo Shi