Ali Rehan
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Ali Rehan

Ali Rehan was an MS student, doing his MS thesis with Computer Vision Lab from Jan 2011 – May 2012. He worked o n the Non-rigid Structure from Motion using Local Rigidity. His research was published at IEEE Winter Conference on Applications of Computer Vision (WACV) 2014. Please go to the project page for more…

Trajectory Basis for Nonrigid Structure from Motion – Project Page

Trajectory Basis for Nonrigid Structure from Motion – Project Page

Ijaz Akhter, Yaser Sheikh, Sohaib Khan, Takeo Kanade Abstract Existing approaches to nonrigid structure from motion assume that the instantaneous 3D shape of a deforming object is a linear combination of basis shapes. These basis are object dependent and therefore have to be estimated anew for each video sequence. In contrast, we propose a dual approach to describe the evolving…

TPAMI 2011 – Trajectory Space: A Dual Representation for Nonrigid Structure from Motion
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TPAMI 2011 – Trajectory Space: A Dual Representation for Nonrigid Structure from Motion

Ijaz Akhter, Yaser Sheikh, Sohaib Khan, Takeo Kanade IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol 33, No 7, Jul 2011 Abstract Existing approaches to nonrigid structure from motion assume that the instantaneous 3D shape of a deforming object is a linear combination of basis shapes. These basis are object dependent and therefore have…

CVPR 2009 – In Defense of Orthonormality Constraints for Nonrigid Structure from Motion
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CVPR 2009 – In Defense of Orthonormality Constraints for Nonrigid Structure from Motion

Ijaz Akhter, Yaser Sheikh, Sohaib Khan IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2009 (Oral, 4.1% acceptance rate) Abstract In factorization approaches to nonrigid structure from motion, the 3D shape of a deforming object is usually modeled as a linear combination of a small number of basis shapes. The original approach to simultaneously…

NIPS 2008 – Nonrigid Structure from Motion in Trajectory Space
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NIPS 2008 – Nonrigid Structure from Motion in Trajectory Space

Ijaz Akhter, Yaser Sheikh, Sohaib Khan, Takeo Kanade 22nd Annual Conference on Neural Information Processing Systems, NIPS, Dec 2008 (Best Student Paper Nomination, ORAL, 2.7% acceptance rate)  Abstract Existing approaches to nonrigid structure from motion assume that the instantaneous 3D shape of a deforming object is a linear combination of basis shapes, which have to…