| 2006 | 2005 | 2004 | 2003 | 2002 | 2001 |
| 2005 | 2004 | 2002 | 2001 |
Walimbe V, Garcia M, Lalude O, Thomas J, Shekhar R. Quantitative real-time three-dimensional stress echocardiography: A preliminary investigation of feasibility and effectiveness. Journal of the American Society of Echocardiography, accepted for publication, 2006.
Walimbe V, Shekhar R: Automatic elastic image registration by interpolation of 3D rotations and translations from discrete rigid-body transformations. Medical Image Analysis, accepted for publication, 2005
Zagrodsky V, Walimbe V, Castro-Pareja CR, Qin J, Song JM, Shekhar R.
Registration-assisted segmentation of real-time 3D echocardiographic data using deformable models.
IEEE Transactions on Medical Imaging 24(9):1089-1099, 2005
Shekhar R, Walimbe V, Raja S, Zagrodsky V, Kanvinde M, Wu G, Bybel B. Automated
Three-Dimensional Elastic Registration of Whole-Body PET and CT from Separate
or Combined Scanners. Journal of Nuclear Medicine, , vol. 46, pp. 1488-96, 2005.
Li J, Papachristou C, Shekhar R: An FPGA-based computing platform for real-time
3D medical imaging and its application to cone-beam CT reconstruction.
Journal of Imaging Science and Technology 49(3):237-245, 2005
Castro-Pareja CR, Shekhar R: Hardware acceleration of mutual information-based
3D image registration. Journal of Imaging Science and Technology
49(2):105-113, 2005
Tang M, Shekhar R, Huang D: Mean curvature mapping for detection of corneal
shape abnormality. IEEE Transactions on Medical Imaging 24(3):424-428,
2005
Shekhar R, Zagrodsky V, Garcia M, Thomas JD: Registration of real-time 3D
ultrasound images of the heart for novel 3D stress echocardiography.
IEEE Transactions on Medical Imaging 23(9):1141-1149, 2004
Castro-Pareja CR, Jagadeesh JM, Shekhar R: FAIR: A hardware architecture
for real-time 3-D image registration. IEEE Transactions on Information
Technology in Biomedicine 7(4):426-434, 2003
Shekhar R, Zagrodsky V: Cine MPR: Interactive multi-planar reformatting of
four-dimensional cardiac data using hardware accelerated texture mapping . IEEE Transactions
on Information Technology in Biomedicine 7(4):384-393, 2003
Shekhar R, Zagrodsky V, Castro-Pareja CR, Walimbe V, Jagadeesh JM: High-speed registration of three- and four-dimensional medical images by using voxel similarity. RadioGraphics 23(6):1673-1681, 2003.
Walimbe V, Zagrodsky V, Raja S, Jaber WA, DiFilippo FP, Garcia MJ, Brunken
RC, Thomas JD, Shekhar R: Mutual information-based multimodality registration
of cardiac ultrasound and SPECT images: A preliminary investigation.
International Journal of Cardiovascular Imaging 19(6):483-494, 2003
Huang D, Tang M, Shekhar R: Mathematical model of corneal surface smoothing after laser refractive surgery. American Journal of Ophthalmology 135(3):267-278, 2003.
Shekhar R, Zagrodsky V: Mutual information-based rigid and nonrigid registration
of ultrasound volumes. IEEE Transactions on Medical Imaging
21(1):9-22, 2002
Sivaramakrishna R, Powell KA, Lieber ML, Chilcote WA, Shekhar R: Texture analysis of lesions in breast ultrasound images. Computerized Medical Imaging and Graphics 26(5):303-307, 2002.
Cothren RM, Shekhar R, Tuzcu EM, Nissen SE, Cornhill JF, Vince DG: Threedimensional
reconstruction of the coronary artery wall by image fusion of intravascular
ultrasound and biplane angiography. International Journal of
Cardiac Imaging 16(2):69-85, 2000
Klingensmith JD, Shekhar R, Vince DG: Evaluation of three-dimensional segmentation
algorithms for the identification of luminal and medial-adventitial borders
in intravascular ultrasound images. IEEE Transactions on Medical Imaging 19(10):996-1011, 2000
Klingensmith JD, Vince DG, Kuban BD, Shekhar R, Tuzcu EM, Nissen SE, Cornhill JF: Assessment of coronary compensatory enlargement by three-dimensional intravascular ultrasound. International Journal of Cardiac Imaging 16(2):87-98, 2000.
Shekhar R, Cothren RM, Vince DG, Chandra S, Thomas JD, Cornhill JF: Three dimensional segmentation of luminal and adventitial borders in serial intravascular ultrasound images. Computerized Medical Imaging and Graphics 23(6):299-309, 1999.
J. Wu, O. D., N. Daryl, P. L., W. D'Souza, & R. Shekhar, Effect of Ultrasound Probe on Dose
Delivery During Real-time Ultrasound-Guided Tumor Tracking, to be presented at IEEE EMBS 2006, New York
O. Dandekar, V. Walimbe, and R. Shekhar, Hardware Implementation of Hierarchical Volume Subdivision-based Elastic Registration to be presented at IEEE EMBS 2006 (accepted)
V. Walimbe, O. Dandekar, F. Mahmoud, and R. Shekhar, Automated 3D Elastic Registration for Improving Tumor Localization in Whole-body PET-CT from Combined Scanner, to be presented at The 28th Annual International Conf. of the IEEE Engg. in Med. and Bio. Soc. (IEEE EMBS), 2006.
O. Dandekar, K. Siddiqui, V. Walimbe, and R. Shekhar, Image Registration Accuracy with Low-Dose CT: How Low Can We Go? presented at IEEE ISBI 2006, Arlington VA, USA.
C. R. Castro-Pareja and R. Shekhar, A cubic interpolation pipeline for fast computation of 3D deformation fields modeled using B-splines, presented at Real-Time Image Processing 2006, San Jose, CA, USA
C. R. Castro-Pareja and R. Shekhar, A hardware-accelerated approach to computing multiple image similarity measures from joint histogram, presented at Real-Time Image Processing 2006, San Jose, CA, USA, 2006
C. R. Castro-Pareja, B. Daly, and R. Shekhar, Elastic registration using 3D ChainMail: application to virtual colonoscopy, presented at Medical Imaging 2006: Image Processing, San Diego, CA, USA
O. Dandekar, C. R. Castro-Pareja, and R. Shekhar, A scalable beamforming architecture for real-time 3D ultrasonic imaging using nonuniform sampling, presented at Medical Imaging 2006: Ultrasonic Imaging and Signal Processing, San Diego, CA, USA
V. Walimbe, V. Zagrodsky, and R. Shekhar, Fully automatic segmentation of left ventricular myocardium in real-time three-dimensional echocardiography, presented at Medical Imaging 2006: Image Processing, San Diego, CA, USA
R. Shekhar, P. Lei, V. Walimbe, and W. D'Souza, "A novel algorithm to register phase-correlated lung CT images, presented at 47th Annual Meeting of American Association of Physicists in Medicine (AAPM 2005)
Zagrodsky V, Shekhar R, Volume rendering of real-time 3D echocardiographic data, To be presented at 2005 IEEE Visualization conference.
Castro-Pareja CR, Zagrodsky V, Bouchet L, Shekhar R, "Automated prostate localization in external-beam radiotherapy using mutual information-based registration of treatment planning CT and daily 3D ultrasound images," Computer Assisted Radiology and Surgery, 2005.
Castro-Pareja CR, Dandekar O, Shekhar R, “FPGA-based real-time anisotropic diffusion filtering of 3D ultrasound images,” in Electronic Imaging: Science and Technology: Real-Time Imaging IX, Proc. SPIE vol. 5671, 2005.
Castro-Pareja CR, Shekhar R, “Adaptive reduction of intensity levels in 3D images for mutual information-based registration,” in Medical Imaging: Image Processing, Proc. SPIE vol. 5747, 2005.
Castro-Pareja CR, Jagadeesh JM, Shekhar R, “FPGA-based acceleration of mutual information calculation for real-time 3D image registration,” in Electronic Imaging: Science and Technology: Real-Time Imaging VIII, Proc. SPIE vol. 5297, pp. 212-219, 2004.
Walimbe V, Zagrodsky V, Raja S, Bybel B, Kanvinde M, Shekhar R, Elastic registrationof three-dimensional whole body CT and PET images by quaternion-based interpolation of multiple piecewise linear rigid-body registrations, in Proc SPIE (Medical Imaging 2004) 5370, p 119-128.
Castro-Pareja CR, Jagadeesh JM, Venugopal S, Shekhar R, “FPGA-based 3D median filtering using word-parallel systolic arrays,” Proc. of the IEEE International Symposium on Circuits and Systems 2004, (ISCAS 2004, vol. 3, pp. 157-160, May 2004.
Li J, Papachristou CA, Shekhar R. A "Brick" caching scheme for 3D medical imaging. In Proceedings of ISBI 2004, p 563-566.
Shekhar R, Zagrodsky V, Walimbe V, 3D Stress Echocardiography: Development of novel visualization, registration and segmentation algorithms, in Proceedings of Computer Assisted Radiology and Surgery (CARS 2004), p 1072-1077.
Castro-Pareja CR, Shekhar R, "Physically correct mesh manipulation in multi-level free-form deformation-based nonrigid registration," Proc. of the 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2004, pp. 1687-1690, Sept. 2004.
L. Jianchun, C. Papachristou, and R. Shekhar, A reconfigurable SoC architecture and caching scheme for 3D medical image processing 2004
Shekhar R, Zagrodsky V: Interactive visualization of four-dimensional ultrasound data. Medicine Meets Virtual Reality 10/02, p 485-487, 2002.
Y. Li, R. Shekhar, and D. Huang, Segmentation of 830- and 1310-nm LASIK corneal optical coherence tomography images, presented at Medical Imaging 2002: Image Processing, San Diego, CA, USA
V. Zagrodsky, R. Shekhar, and J. F. Cornhill, Multifunction extension of simplex optimization method for mutual information-based registration of ultrasound volumes, presented at Medical Imaging 2001: Image Processing, San Diego, CA, USA, 2001
V. Zagrodsky, R. Shekhar, and J. F. Cornhill, Mutual information-based registration of cardiac ultrasound volumes, presented at Medical Imaging 2000: Image Processing, San Diego, CA, USA
Shekhar R, Fayyad E, Yagel R, Cornhill JF: Octree-based decimation of marching cubes surfaces. Proceedings of IEEE Visualization, p 335-342, 1996.
Shekhar R, Cothren RM, Vince DG, Cornhill JF: Spatio-temporal localization of intravascular ultrasound data for accurate 3D reconstruction of coronary arteries. Proceedings of Annual International Conference of IEEE Engineering in Medicine and Biology, v 2, p 668-669, 1996.
Shekhar R, Cothren RM, Vince DG, Cornhill JF: Fusion of intravascular ultrasound and biplane angiography for three-dimensional reconstruction of coronary arteries. Computers in Cardiology, p 5-8, 1996. [One of the four papers selected for Young Investigator Award Competition]