Xidian University

Jimin Liang

Duofang Chen

Xueli Chen

Shouping Zhu

Nan Wang

Jie Tian

Xiaochao Qu

Yonghua Zhan

Heng Zhao

Honghao Cao

The invention discloses a two-mode Raman optical projection tomography system. Samples are irradiated by the laser beam after the beam being expanded by beam expander. Optical signal of each mode will be separated by the beam splitter. Sparse sampling method is used for signal collection. Optical transmission projection signal acquisition module collects transmitted light of samples to form optical projection image. Multi-spectral Raman scattering signal acquisition module collects Raman scattering light produced by samples. Background noise is removed from the collected data. Sparse sampling data are reconstructed by using algebraic reconstruction method (ART) based on TV minimization. The three-dimensional structure image obtained by reconstruction and the three-dimensional chemical compositions image are fused to obtain the three-dimensional volume image with multiple information.

Two-mode Raman optical projection tomography system

A system for the endoscopic X-ray luminescence computed tomographic imaging is provided. The system comprises an excitation source unit () configured to excite a probe inside a detecting object from an external excitation source; a signal collecting unit () configured to collect X-ray images of the detecting object and near-infrared light signal images emitting from the probe being excitated; a computing unit () configured to preprocess the collected X-ray images and the near-infrared light signal images, execute sparse reconstruction on the preprocessed X-ray images so as to obtain anatomical structure information of the detecting object and location information of an endoscopic detector in the signal collecting unit () inside the detecting object, and use the obtained anatomical structure information and the location information to execute three-dimensional optical reconstruction based on the preprocessed near-infrared light signal images so as to obtain localization and distribution of an imaging target inside the detecting object.

System and method for endoscopic X-ray luminescence computed tomographic imaging

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Xi'an, China

Jimin Liang