**Namrata Vaswani's
Publications**

**Research Summary**

**Newer
work: Real-time (Recursive) Robust PCA**

Talk on **Recursive Sparse Recovery** (invited
talk at Brown Univ, Feb 2011, talks at JHU, UMD)

**Recent Preprints **

o **Jinchun Zhan and Namrata Vaswani, Robust PCA with Partial Subspace Knowledge,
IEEE Intl. Symp. Info. Theory (ISIT) 2014**

o **Jinchun Zhan and Namrata Vaswani, Performance Guarantees for ReProCS
-- Correlated Low-Rank Matrix Entries Case, IEEE Intl. Symp. Info. Theory (ISIT) 2014**

o Jinchun Zhan and Namrata Vaswani, Time Invariant Error Bounds for
Modified-CS based Sparse Signal Sequence Recovery, IEEE
Intl. Symp. Info. Theory (**ISIT) 2013**

1. **Namrata Vaswani** and Wei Lu, Recursive Reconstruction
of Sparse Signal Sequences, bookchapter in *Filtering from Undersampled
Data with an Introduction to Compressed Sensing*, Springer, Eds M. Mihaylova, A. Carmi, S. Godsill, to appear 2013

2.
**Namrata Vaswani**,
A.K. Agrawal, Q. Zheng, R. Chellappa, Moving Object Detection and Compression in IR
Sequences, bookchapter in Computer Vision
beyond the Visible Spectrum, Eds B. Bhanu and I. Pavlidis, Springer,
2003

**Journal Papers and Highly Selective Conference
Papers**

1. **Chenlu Qiu, Namrata Vaswani, Brian Lois and Leslie Hogben, Recursive Robust PCA or Recursive Sparse Recovery in
Large but Structured Noise, to appear IEEE Trans. Information Theory,
August 2014, arXiv:1211.3754v6 [cs.IT**]. ReProCS
code

2.
**Han Guo, Chenlu Qiu and Namrata Vaswani****, ****An Online Algorithm
for Separating Sparse and Low-dimensional Signal Sequences from their Sum,**** to appear IEEE Trans. Signal Processing,
2014, arXiv:1310.4261 [cs.IT] **(older
title: Practical ReProCS for Separating Sparse and
Low-dimensional Signal Sequences from their Sum), ReProCS
code

3. Daguang Xu, Namrata Vaswani,
Yong Huang, Jin U. Kang, Modified
compressive sensing optical coherence tomography with noise reduction,
Optics Letters, vol 37, No. 20, October 2012 Modified-CS code

4.
Wei Lu and **Namrata Vaswani**, Exact Reconstruction Conditions for
Regularized Modified Basis Pursuit, IEEE Trans. Signal Processing, vol. 60,
No. 5, May, 2012

5. Samarjit
Das, Amit Kale and **Namrata Vaswani**, Particle Filter with Mode Tracker (PF-MT) for
Visual Tracking across Illumination Changes, IEEE Trans. Image Processing,
April 2012

6. Wei
Lu and **Namrata Vaswani**, Regularized Modified BPDN for Noisy Sparse
Reconstruction with Partial Erroneous Support and Signal Value Knowledge,
IEEE Trans. Signal Processing, Vol. 60, No. 1, January, 2012 Modified-CS code

7. **Namrata Vaswani and Wei Lu, ****Modified-CS: Modifying Compressive Sensing for
Problems with Partially Known Support****, IEEE Trans.
Signal Processing, Vol. 58, No. 9, September, 2010. **Modified-CS code

8. **Namrata Vaswani, LS-CS-residual (LS-CS):
Compressive Sensing on the Least Squares Residual, IEEE Trans. Signal
Processing, Vol. 58, No. 8, August, 2010. **LS-CS and KF-CS code

9. Samarjit
Das and **Namrata Vaswani**, Nonstationary
Shape Activities: Dynamic Models for Landmark Shape Change and Applications,
IEEE Trans. Pattern Analysis and Machine Intelligence (PAMI), Vol. 32, No. 4,
April, 2010

10.
**Namrata Vaswani**,
Yogesh Rathi, Anthony
Yezzi, Allen Tannenbaum, Deform
PF-MT: Particle Filter with Mode Tracker for Tracking Nonaffine
Contour Deformations, IEEE Trans. Image Processing, Vol. 19, No. 4,
April 2010.

11.
**Namrata Vaswani**,
Particle Filtering for Large Dimensional State Spaces
with Multimodal Observation Likelihoods, IEEE Trans. Signal Processing,
pp.4583-4597, Oct. 2008.

12.
Yogesh Rathi,
**Namrata Vaswani**, Allen Tannenbaum,
Anthony Yezzi, Tracking Deforming Objects using
Particle Filtering for Geometric Active Contours, IEEE Trans. on Pattern
Analysis and Machine Intelligence (PAMI), pp. 1470-1475, August 2007.

13. Yogesh Rathi,
**Namrata Vaswani**, Allen Tannenbaum,
A Generic Framework for Tracking using Particle Filter
with Dynamic Shape Prior, IEEE Trans. Image
Processing, pp.1370-1382, May 2007

14. **Namrata Vaswani**, Additive Change Detection in Nonlinear Systems with
Unknown Change Parameters, IEEE Trans.
Signal Processing, pp. 859-872, March 2007.

15.
**Namrata Vaswani**, Rama Chellappa, Principal
Component Null Space Analysis for Image and Video Classification, IEEE Trans. Image Processing, pp. 1816-1830, July 2006.

16. **Namrata Vaswani**, Amit Roy-Chowdhury, Rama
Chellappa, "Shape Activity": A
Continuous State HMM for Moving/Deforming Shapes with Application to Abnormal
Activity Detection, IEEE Trans. Image Processing, pp 1603-1616, October 2005

17. A.
Ramamoorthy, **Namrata Vaswani**, S. Chaudhury
and S. Bannerjee, Recognition of Dynamic Hand
Gestures , Pattern Recognition, Vol. 36, No. 9, pp. 2069-2081, September,
2003

18.
Bi Song, **Namrata Vaswani**,
Amit Roy-Chowdhury, Closed-loop Tracking and Change
Detection in Multi-Activity Sequences, IEEE Intl. Conf. on Computer
Vision and Pattern Recognition (CVPR), 2007. **(Acceptance rate: 25%**

19.
Yogesh
Rathi, **Namrata Vaswani** , Allen Tannenbaum, Anthony Yezzi, "Particle Filtering for Geometric Active Contours
and Application to Tracking Deforming Objects", IEEE Intl. Conference
on Computer Vision and Pattern Recognition (CVPR), 2005, **oral**.**
(Acceptance rate: 6%)**

20.
**Namrata Vaswani**,
Bound on Errors in
Particle Filtering with Incorrect Model Assumptions and its Implication
for Change Detection, IEEE Intl. Conference on Acoustics, Speech and Signal
Processing (ICASSP), 2004. *Selected among top 15% papers in
Signal Processing Theory and Methods category, and received an invitation to
submit to IEEE Signal Processing Society journals.* (Acceptance rate:
15%*50% = 7.5%)

21.
**Namrata Vaswani**,
A. RoyChowdhury, Rama Chellappa, "Activity Recognition Using the Dynamics of the
Configuration of Interacting Objects", IEEE Computer Vision and
Pattern Recognition (CVPR), 2003. **(Acceptance rate: 25%)**

**All Conference Papers
(reverse chronological order)**

o
Jinchun Zhan and Namrata Vaswani, __Robust PCA with Partial Subspace Knowledge,__
**IEEE Intl. Symp.
Info. Theory (ISIT) 2014**

o Jinchun Zhan and Namrata
Vaswani, __Performance Guarantees for ReProCS
-- Correlated Low-Rank Matrix Entries Case__,** IEEE Intl. Symp.
Info. Theory (ISIT) 2014**

o
Han Guo, Chenlu Qiu and Namrata Vaswani, **Practical ReProCS for Separating Sparse and Low-dimensional Signal
Sequences from their Sum, **IEEE Intl. Conf. Acous.
Speech. Sig. Proc. **(ICASSP)****, 2014, long version: arXiv:1310.4261 [cs.IT] (revised for IEEE Trans SP)**

22.
Brian Lois, Namrata Vaswani and Chenlu Qiu, Performance Guarantees for Undersampled Recursive Sparse Recovery in Large but
Structured Noise, **IEEE GlobalSIP,
2013** (in Symposium on New Sensing and Statistical Inference Methods), **invited. **ReProCS
code

o
Chenlu Qiu and Namrata Vaswani, Recursive
Sparse Recovery in Large but Structured Noise - Part 2, IEEE
Intl. Symp. Info. Theory (**ISIT) 2013. **ReProCS
code

o
Jinchun Zhan and Namrata Vaswani, Time
Invariant Error Bounds for Modified-CS based Sparse Signal Sequence Recovery, IEEE
Intl. Symp. Info. Theory (**ISIT) 2013. **ReProCS
code

o
Chenlu Qiu , Namrata Vaswani and Leslie
Hogben, Recursive Robust PCA or
Recursive Sparse Recovery in Large but Structured Noise, IEEE Intl. Conf. Acous.
Speech. Sig. Proc. **(ICASSP)****, 2013. **ReProCS
code

o
Jinchun Zhan, Namrata Vaswani and Ian
Atkinson, Separating Sparse and Low-Dimensional
Signal Sequence from Time-varying Undersampled
Projections of their Sums, IEEE Intl. Conf. Acous. Speech. Sig. Proc. **(ICASSP),**** 2013**

o
Rituparna Sarkar, Namrata Vaswani and
Samarjit Das, Tracking Sparse Signal Sequences
from Nonlinear/Non-Gaussian Measurements and Applications in Illumination-Motion
Tracking, IEEE Intl. Conf. Acous.
Speech. Sig. Proc. **(ICASSP),**** 2013**

o
Chenlu Qiu and** Namrata Vaswani, Recursive
Sparse Recovery in Large but Correlated Noise, Allerton
2011 **ReProCS
code

o
Chenlu Qiu and **Namrata Vaswani,** Support
Predicted Modified-CS for Recursive Robust Principal Components' Pursuit,
IEEE Intl. Symp. Info. Theory (**ISIT) 2011. **ReProCS
code

o
Wei
Lu, Taoran Li, Ian Atkinson, **Namrata****
Vaswani**, Modified-CS-Residual for Recursive
Reconstruction of Highly Undersampled Functional MRI
Sequences, IEEE Intl. Conf. Image Proc.** (ICIP) 2011. **Modified-CS code

o
Fardad
Raisali and **Namrata Vaswani**, Stability
(over time) of Regularized Modified-CS (noisy) for Recursive Causal Sparse
Reconstruction, **CISS 2011**

o
Chenlu
Qiu and **Namrata Vaswani**, Real-time Robust
Principal Components' Pursuit, Allerton,
2010 ReProCS
(same as RRPCP) code

o
**Namrata Vaswani**, Stability (over time) of
Modified-CS for Recursive Causal Sparse Reconstruction, Allerton
2010** **(invited)** ****Talk****
**

o
Wei
Lu and **Namrata Vaswani**, Exact Reconstruction
Conditions and Error Bounds for Regularized Modified Basis Pursuit, Asilomar 2010

o
Samarjit
Das and **Namrata Vaswani**, Particle Filtered
Modified Compressive Sensing (PaFiMoCS) for tracking
signal sequences, Asilomar 2010** (invited). **Talk

o
Wei Lu and **Namrata
Vaswani,** Modified Basis Pursuit Denoising
(Modified-BPDN) For Noisy Compressive Sensing With Partially Known Support, IEEE Intl. Conf. Acous.
Speech. Sig.Proc.(ICASSP),
2010. Modified-CS code

o
Wei
Lu and **Namrata Vaswani**, Modified
Compressive Sensing for Real-time Dynamic MR Imaging, IEEE Intl. Conf.
Image Proc (ICIP), 2009 Modified-CS
code

o
**Namrata Vaswani** and Wei Lu, Modified-CS: Modifying Compressive Sensing for
Problems with Partially Known Support, IEEE Intl. Symp.
Info. Theory (ISIT), 2009. Modified-CS code

o
**Namrata Vaswani**, Analyzing Least
Squares and Kalman Filtered Compressed Sensing,
IEEE Intl. Conf. Acous. Speech. Sig. Proc. (ICASSP),
2009. LS-CS and KF-CS code

o
Chenlu
Qiu, Wei Lu and **Namrata Vaswani**, Real-time
Dynamic MR Image Reconstruction using Kalman Filtered
Compressed Sensing,* *IEEE Intl. Conf. Acous.
Speech. Sig. Proc. (ICASSP), 2009.

o
S.
Das and N. Vaswani, Efficient importance sampling techniques for large dimensional
and multimodal posterior computations, IEEE Digital Signal Processing/SPE
Workshop, Miami FL, Jan 2009 **(invited)**

o
**Namrata Vaswani, **Kalman
Filtered Compressed Sensing, IEEE Intl. Conf. Image Proc. (ICIP), 2008. LS-CS and KF-CS code

o
Amit
Kale and **Namrata Vaswani,**
Generalized ELL for Detecting and Tracking Through
Illumination Model Changes, IEEE Intl. Conf. Image Proc. (ICIP), 2008.

o
Samarjit
Das and **Namrata Vaswani**, Model-based
Compression of Nonstationary Landmark Shape Sequences,
IEEE Intl. Conf. Image Proc. (ICIP), 2008.

o
Bi
Song, **Namrata Vaswani**, Amit Roy-Chowdhury, Closed-loop
Tracking and Change Detection in Multi-Activity Sequences, IEEE Intl.
Conf. on Computer Vision and Pattern Recognition (CVPR), 2007.

o
**Namrata Vaswani** and Samarjit Das, Particle Filter
with Efficient Importance Sampling and Mode Tracking (PF-EIS-MT) and its
Application to Landmark Shape Tracking, Asilomar
2007 (**invited)**

o
Amit
Kale, **Namrata Vaswani,** Christopher Jaynes, Particle Filter with Mode Tracker (PF-MT) for
Visual Tracking across Illumination Change, IEEE Intl. Conf. on Acoustics,
Speech and Signal Processing (ICASSP), 2007

o
**Namrata Vaswani,** PF-EIS and PF-MT: New
Particle Filtering Algorithms for Multimodal Observation Likelihoods and Large
Dimensional State Spaces, IEEE Intl. Conference on Acoustics, Speech and
Signal Processing (ICASSP), 2007

o
**Namrata Vaswani, **Anthony Yezzi, Yogesh Rathi, Allen Tannenbaum, Particle Filters for Infinite (Or Large) Dimensional State
Spaces - Part 1, IEEE Intl. Conference on Acoustics, Speech and
Signal Processing (ICASSP), 2006.

o
**Namrata Vaswani, **Particle Filters for
Infinite (Or Large) Dimensional State Spaces - Part 2 , IEEE Intl.
Conference on Acoustics, Speech and Signal Processing (ICASSP), 2006.

o
Bi
Song, **Namrata Vaswani **and Amit K. Roy-Chowdhury, Summarization and Indexing of Human Activity Sequences,
IEEE Conf. on Image Processing (ICIP), 2006.

o
**NamrataVaswani****, **Anthony Yezzi, Yogesh Rathi, Allen Tannenbaum, Time-varying Finite Dimensional Basis for Tracking
Contour Deformations, IEEE Conf. on Decision and Control (CDC), 2006.

o
Yogesh Rathi, **Namrata Vaswani**
, Allen Tannenbaum, Anthony Yezzi, Particle Filtering for Geometric Active Contours
and Application to Tracking Deforming Objects, IEEE Intl. Conference on
Computer Vision and Pattern Recognition (CVPR), 2005, **oral**.

o
**Namrata Vaswani** and Rama Chellappa, NonStationary
"Shape Activities", IEEE Conf. on Decision and Control
(CDC), 2005.

o
**Namrata Vaswani**, " The
Modified CUSUM Algorithm for Slow and Drastic Change Detection in General HMMs
with Unknown Change Parameters", IEEE
Intl. Conference on Acoustics, Speech and Signal Processing (ICASSP), 2005. *There
is an error in section 3, first paragraph: the averaging (dividing by 1/p)
should be removed.*

o
**Namrata Vaswani**, Bound on Errors in
Particle Filtering with Incorrect Model Assumptions and its Implication
for Change Detection, IEEE Intl. Conference on Acoustics, Speech and Signal
Processing (ICASSP), 2004. **Selected among top 15% papers in
Signal Processing Theory and Methods category, and received an invitation to
submit to IEEE Signal Processing Society journals.**

o
**Namrata Vaswani**, "Change
Detection in Partially Observed Nonlinear Dynamic Systems With Unknown Change Parameters", American Control
Conference (ACC), 2004.

o
**Namrata Vaswani**, Rama Chellappa, "Classification Probability Analysis of Principal
Component Null Space Analysis", Intl. Conference on Pattern Recognition (ICPR), 2004.

o
**Namrata Vaswani**, A. RoyChowdhury, Rama
Chellappa, "Activity Recognition Using the Dynamics
of the Configuration of Interacting Objects",
IEEE Computer Vision and Pattern Recognition (CVPR), 2003.

o
**Namrata Vaswani**, A. RoyChowdhury, R.
Chellappa, Statistical Shape Theory for
Activity Modeling, IEEE Intl. Conf. on Acoustics, Speech and Signal
Processing (ICASSP), 2003.

o
Namrata
Vaswani and Rama Chellappa, A Particle Filtering
Approach to Abnormality Detection in Nonlinear Systems and its Application to
Abnormal Activity Detection, 3rd Intl. Workshop on Statistical and
Computational Theories of Vision, held in conjunction with ICCV, 2003.

o
R.
Chellappa, N.Vaswani, A.RoyChowdhury,
"Activity Modeling and Recognition Using
Shape Theory", Behavior Representation
in Modeling and Simulation (BRIMS), 2003.

o
**Namrata Vaswani**, A Linear Classifier for Gaussian Class
Conditional Distributions with Unequal Covariance Matrices, Intl.
Conference on Pattern Recognition (ICPR), 2002.

o
**NamrataVaswani**
and Rama Chellappa, Best View Selection and
Compression of Moving Objects in IR Sequences, IEEE Intl. Conf. on
Acoustics, Speech and Signal Processing (ICASSP), 2001.

o
Meeta
Sharma, Namrata Vaswani and Suneet Tuli, "Novel Techniques for Time and Frequency Domain
Characterization of Surface Acoustic Wave Devices", VIII National
Symposium on Ultrasonics in 1997, at Amritsar, India.

o

**Ph.D. Thesis: **Change Detection
in Stochastic Shape Dynamical Models with Applications in Activity
Modeling and Abnormal Activity Detection