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ICCV 2011 – Multiview Structure from Motion in Trajectory Space

ICCV 2011 – Multiview Structure from Motion in Trajectory Space

| November 1, 2011

Aamer Zaheer, Ijaz Akhter, Mohammad Haris Baig, Shabbir Marzban, Sohaib Khan International Conference on Computer Vision, ICCV, 2011 Abstract Most nonrigid objects exhibit temporal regularities in their deformations. Recently it was proposed that these regularities can be parameterized by assuming that the non- rigid structure lies in a small dimensional trajectory space. In this paper, […]

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

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

| July 1, 2011

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 […]

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SPM 2011 – Distributed and Decentralized Multi-Camera Tracking: A Survey

SPM 2011 – Distributed and Decentralized Multi-Camera Tracking: A Survey

| May 13, 2011

Murtaza Taj, Andrea Cavallaro IEEE Signal Processing Magazine, 2011 Abstract In recent years the decreasing cost of cameras and advances in miniaturization have favoured the deployment of largescale camera networks. This growing number of cameras enables new signal processing applications that use cooperatively multiple sensors over wide areas. In particular, object tracking is an important […]

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TIP 2010 – Exploiting Transitivity of Correlation for Fast Template Matching

TIP 2010 – Exploiting Transitivity of Correlation for Fast Template Matching

| August 8, 2010

Arif Mahmood, Sohaib Khan IEEE Transactions on Image Processing, Vol 19, N0. 8, Aug 2010 Abstract Elimination Algorithms are often used in template matching to provide a significant speed-up by skipping portions of the computation while guaranteeing the same best-match location as exhaustive search. In this work, we develop elimination algorithms for correlation-based match measures […]

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JBC 2010 – Myosin Motors Drive Long Range Alignment of Actin Filaments

JBC 2010 – Myosin Motors Drive Long Range Alignment of Actin Filaments

| February 12, 2010

Tariq Butt, Tabish Mufti, Ahmad Humayun, Peter B. Rosenthal, Sohaib Khan, Shahid Khan, Justin E. Molloy Journal of Biological Chemistry, Vol 285, No 7, Feb 12, 2010  Abstract The bulk alignment of actin filament sliding movement, powered by randomly oriented myosin molecules, has been observed and studied using an in vitro motility assay. The well […]

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ICIP 2009 – Early Termination Algorithms for Adaboost Based Detectors

ICIP 2009 – Early Termination Algorithms for Adaboost Based Detectors

| November 8, 2009

Arif Mahmood, Sohaib Khan 16th International Conference on Image Processing, Cairo, Egypt, Nov 7-10, 2009 Abstract In this paper we propose an early termination algorithm for speeding up the detection phase of the Adaboost based de- tectors. In the basic algorithm, at a specific search location, the AdaBoost ensemble response is computed as monotonic decreasing […]

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BMVC 2009 – VillageFinder: Segmentation of Nucleated Villages in Satellite Imagery

BMVC 2009 – VillageFinder: Segmentation of Nucleated Villages in Satellite Imagery

| September 8, 2009

Kashif Murtaza, Sohaib Khan, Nasir Rajpoot British Machine Vision Conference (BMVC), September 2009 Abstract Geo-spatial data on village locations, their size, population and other parameters is scarcely available to decision makers in many developing countries. In this paper, we demonstrate an automatic “crawler” which can segment nucleated villages from satellite imagery freely available in public […]

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

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

| June 8, 2009

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 […]

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MTA 2009 – Content and Task-Based View Selection from Multiple Video Streams

MTA 2009 – Content and Task-Based View Selection from Multiple Video Streams

| January 13, 2009

Fahad Daniyal, Murtaza Taj, Andrea Cavallaro Multimedia Tools and Applications, 2009 Abstract We present a content-aware multi-camera selection technique that uses object and frame-level features. First objects are detected using a color-based change detector. Next trajectory information for each object is generated using multi-frame graph matching. Finally, multiple features including size and location are used […]

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NIPS 2008 – Nonrigid Structure from Motion in Trajectory Space

NIPS 2008 – Nonrigid Structure from Motion in Trajectory Space

| December 9, 2008

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 […]

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