Qing-Li Li

Learn More
Automatic tongue area segmentation is crucial for computer aided tongue diagnosis, but traditional intensity-based segmentation methods that make use of monochromatic images cannot provide accurate and robust results. We propose a novel tongue segmentation method that uses hyperspectral images and the support vector machine. This method combines spatial and(More)
Human tongue is one of the important organs of the body, which carries abound of information of the health status. The images of the human tongue that are used in computerized tongue diagnosis of traditional Chinese medicine (TCM) are all RGB color images captured with color CCD cameras currently. However, this conversional method impedes the accurate(More)
A novel molecular hyperspectral imaging (MHSI) system based on AOTF (acousto-optic tunable filters) was presented. The system consists of microscope, AOTF-based spectrometer, matrix CCD, image collection card and computer. The spectral range of the MHSI is from 550 to 1 000 nm. The spectral resolution is less than 2 nm, and the spatial resolution is about(More)
Integrating molecular imaging technology and hyperspectral technology, a novel molecular hyperspectral imaging (MHSI) system based on AOTF was presented. The system consists of microscope, spectrometer, matrix CCD, image collection card and computer. The system's performance was synthetically evaluated referring every part's performance. The spectral range(More)
As dendritic cells (DCs) play a critical role in priming antigen-specific immune responses, the efficacy of DNA vaccines may be enhanced by targeting the encoded antigen proteins to DCs. In this study, we constructed a DC-targeted DNA vaccine encoding the Hc domain of botulinum neurotoxin serotype A (AHc) fused with scDEC, a single-chain Fv antibody (scFv)(More)
The optometry in physical examinations is conducted manually at present and this method is neither precise nor efficient. After studying the standard logarithmic visual acuity charts which is popular in our country, we have designed an optometry system based on Client/Server Computing Mode. The system's architecture and its working principle are also(More)
In surgical nerve repair surgery, the identification of nerve fascicles is a key to a good repair of their broken end. Some of the existing nerve fascicles identification method are not ideal. Hyperspectral imaging (HSI) technology provides information of images and spectra of biological tissue at the same time. It can supply a qualitative, quantitative and(More)
  • Qing-li Li
  • 2010
The 70MHz narrow band quartz crystal filter has been developed. The filter features: center frequency 70MHz, 3dB band width ≥13.5KHz, ripple in pass band ≤0.5dB, stopband attenuation ≥50dB, rectangle coefficient ≤2.2, insertion loss ≤3dB, input and output impedance 50Ω, range of operation temperature(More)
  • 1