41 Papers
20 Citations
Li Qi is an academic researcher from Southern Medical University. The author has contributed to research in topics: Computer science & Optical coherence tomography. The author has an hindex of 8, co-authored 29 publications. Previous affiliations of Li Qi include Nanjing University & University College of Engineering.
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Papers
Statistical behavior analysis and precision optimization for the laser stripe center detector based on Steger's algorithm
TL;DR: In this paper, a statistical behavior analysis for the laser stripe center extractor based on Steger method has been carried out and relationships between center extraction precision, image quality and stripe characteristics have been examined analytically.
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Multispectral Interlaced Sparse Sampling Photoacoustic Tomography
TL;DR: Simulation, phantom, and in vivo animal experiments showed that even under 1/6 or 1/8 sparse sampling rate, the interlaced sparse sampling PAT achieved comparable image reconstruction and spectral un-mixing results to those obtained by conventional dense sampling method.
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Photoacoustic Tomography Image Restoration With Measured Spatially Variant Point Spread Functions
TL;DR: Wang et al. as mentioned in this paper used photoacoustic absorbing microspheres to acquire a dense set of spatially variant PSFs for a commercial cross-sectional PAT system, and a pixel-wise PSF map was further obtained by employing a multi-Gaussian-based fitting and interpolation algorithm.
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Model-Based Optoacoustic Tomography Image Reconstruction With Non-local and Sparsity Regularizations
Xipan Li,Li Qi,Shuangyang Zhang,Shixian Huang,Jian Wu,Lijun Lu,Yanqiu Feng,Qianjin Feng,Wufan Chen +8 more
TL;DR: A new dual-constraint OAT imaging model involving a combination of non-local means filtering and sparse coding, with the former to preserve image details by self-similarity and the latter to enforce sparsity is presented.
Photoacoustic imaging of living mice enhanced with a low-cost contrast agent
Shuangyang Zhang,Li Qi,Xipan Li,Jiaming Liu,Shixian Huang,Jian Wu,Ruiyuan Liu,Yanqiu Feng,Qianjin Feng,Wufan Chen +9 more
TL;DR: With Intralipid, the imaging sensitivity of PAI can be effectively enhanced, as demonstrated in in vivo imaging of different organs of nude mice and on cancerous mice, and not only a twofold PA signal enhancement, but also a strong and long-lasting signal aggregation in the tumor region.
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