Dr. TianFang Li Profile

Dr. TianFang Li

at Stanford Univ

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Author

Publications (10)

Proceedings Article | 21 March 2007 Paper

Improved scatter correction for x-ray conebeam CT using primary modulation

Lei Zhu, Josh StarLack, N. Robert Bennett, Tianfang Li, Lei Xing, Rebecca Fahrig

Proceedings Volume 6510, 65101U (2007) https://doi.org/10.1117/12.713678

KEYWORDS: Modulation, Modulators, Sensors, X-ray sources, Linear filtering, X-rays, X-ray computed tomography, Copper, Image processing, Reconstruction algorithms

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Proceedings Article | 3 March 2006 Paper

Penalized weighted least-squares approach for low-dose x-ray computed tomography

Jing Wang, Tianfang Li, Hongbing Lu, Zhengrong Liang

Proceedings Volume 6142, 614247 (2006) https://doi.org/10.1117/12.653903

KEYWORDS: Image restoration, X-ray computed tomography, Sensors, Computed tomography, Reconstruction algorithms, Denoising, Image filtering, Image resolution, CT reconstruction, Radon transform

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Proceedings Article | 2 March 2006 Paper

Noise reduction for low-dose helical CT by 3D penalized weighted least-squares sinogram smoothing

Jing Wang, Tianfang Li, Hongbing Lu, Zhengrong Liang

Proceedings Volume 6142, 61424E (2006) https://doi.org/10.1117/12.653844

KEYWORDS: Smoothing, Denoising, 3D image reconstruction, X-rays, Algorithm development, Reconstruction algorithms, Sensors, X-ray computed tomography, Head, Statistical analysis

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Proceedings Article | 29 April 2005 Paper

Sinogram noise reduction for low-dose CT by statistics-based nonlinear filters

Jing Wang, Hongbing Lu, Tianfang Li, Zhengrong Liang

Proceedings Volume 5747, (2005) https://doi.org/10.1117/12.595662

KEYWORDS: Nonlinear filtering, Anisotropic filtering, Image filtering, Anisotropic diffusion, Computed tomography, Linear filtering, Diffusion, Denoising, Gaussian filters, Signal to noise ratio

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Proceedings Article | 26 October 2004 Paper

Computed tomography with a low-intensity proton flux: results of a Monte Carlo simulation study

Reinhard Schulte, Margio Klock, Vladimir Bashkirov, Ivan Evseev, Joaquim de Assis, Olga Yevseyeva, Ricardo Lopes, Tianfang Li, David Williams, Andrew Wroe, Hugo Schelin

Proceedings Volume 5541, (2004) https://doi.org/10.1117/12.560031

KEYWORDS: Monte Carlo methods, X-ray computed tomography, Tissues, Computed tomography, Sensors, X-rays, Scanners, Spatial resolution, Radiography, Computer simulations

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Proceedings Article | 12 May 2004 Paper

SNR-weighted sinogram smoothing with improved noise-resolution properties for low-dose x-ray computed tomography

Tianfang Li, Jing Wang, Junhai Wen, Xiang Li, Hongbing Lu, Jiang Hsieh, Zhengrong Liang

Proceedings Volume 5370, (2004) https://doi.org/10.1117/12.535560

KEYWORDS: Signal to noise ratio, X-ray computed tomography, Data modeling, X-rays, Sensors, Smoothing, Calibration, Linear filtering, Image filtering, Scanners

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Proceedings Article | 12 May 2004 Paper

Reconstruction with most likely trajectory for proton computed tomography

Tianfang Li, Jerome Liang

Proceedings Volume 5370, (2004) https://doi.org/10.1117/12.535811

KEYWORDS: Computed tomography, Reconstruction algorithms, Spatial resolution, Aluminum, Stochastic processes, Image resolution, Particles, Sensors, X-rays, Tissues

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Proceedings Article | 15 May 2003 Paper

Analytical solution to 3D SPECT reconstruction with nonuniform attenuation, scatter, and spatially variant resolution variation for variable focal-length fan-beam collimators

Junhai Wen, Hongbing Lu, Tianfang Li, Zhengrong Liang

Proceedings Volume 5032, (2003) https://doi.org/10.1117/12.480472

KEYWORDS: Signal attenuation, Collimators, Single photon emission computed tomography, Reconstruction algorithms, Radon transform, Interference (communication), Analytical research, Collimation, Sensors, Point spread functions

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Proceedings Article | 15 May 2003 Paper

High-resolution reconstruction for 3D SPECT

Tianfang Li, Junhai Wen, Hongbing Lu, Xiang Li, Zhengrong Liang

Proceedings Volume 5032, (2003) https://doi.org/10.1117/12.481429

KEYWORDS: Image resolution, Single photon emission computed tomography, Reconstruction algorithms, Matrices, Signal attenuation, Sensors, Expectation maximization algorithms, Collimators, Optical resolution, Imaging systems

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Proceedings Article | 9 May 2002 Paper

Toward an analytical solution for 3D SPECT reconstruction with nonuniform attenuation and distance-dependent resolution variation: a Monte Carlo simulation study

Hongbing Lu, Junhai Wen, Xiang Li, Tianfang Li, Guoping Han, Zhengrong Liang

Proceedings Volume 4684, (2002) https://doi.org/10.1117/12.467168

KEYWORDS: Signal attenuation, Single photon emission computed tomography, Reconstruction algorithms, Monte Carlo methods, Deconvolution, Sensors, Radon transform, Interference (communication), Electronic filtering, Filtering (signal processing)

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Showing 5 of 10 publications

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