Publications by authors named "Weihang Qiu"
Quantitative detection of hepatocyte mixture based on terahertz time-domain spectroscopy using spectral image analysis methods.
Spectrochim Acta A Mol Biomol Spectrosc
February 2025
Article Synopsis
- Terahertz (THz) technology is gaining attention for its potential in bio-detection, but there's limited research on its use in mixtures.
- Traditional 1D spectral analysis is not sensitive enough due to overlapping and distortions, so this study used the Gramian angular field (GAF) method to create 2D images from THz spectra.
- The new approach, which combines histogram of oriented gradients (HOGs) and gray level histograms (GLHs) with a support vector regression (SVR) model, showed improved accuracy and stability over traditional methods, making it more effective for analyzing mixed systems.
Article Synopsis
- Liver cancer is challenging to detect early due to its high malignancy and subtle symptoms, making research into early detection methods crucial.
- This study introduces a biometric detection technique using terahertz time-domain spectroscopy to distinguish between normal and cancerous liver cells by analyzing five key characteristics.
- The proposed method achieved an accuracy of 91.6% in classifying human hepatoma and normal cell lines, offering a promising approach for evaluating living cells in a liquid environment.