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oe1(光电查) - 科学论文

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  • Optical and photocatalytic properties of bismuth vanadate doped bismuth silicate glasses

    摘要： The aim of this research is to investigate optical and photocatalytic properties of 0.25, 0.5 and 1.0 mol% BiVO4 doped bismuth silicate glasses. The glasses composition is 60 mol% SiO2 and 40 mol% Bi2O3. Optical spectra and the analysis of color by CIELab system revealed that the addition of BiVO4 changed the color of the glasses from pale yellow to yellow-orange with the narrower band gap. Photocatalytic activity was observed in 0.5 and 1.0 mol% BiVO4-doped glass. The effect of BiVO4 doping to bismuth silicate glass is also discussed.

    关键词： Optical,Photocatalysis,Bismuth vanadate,Bismuth silicate glass,CIELab

    更新于2025-11-14 15:30:11

  • [IEEE 2018 IEEE 7th Global Conference on Consumer Electronics (GCCE) - Nara, Japan (2018.10.9-2018.10.12)] 2018 IEEE 7th Global Conference on Consumer Electronics (GCCE) - A Low-Light Color Image Enhancement Method on CIELAB Space

    摘要： A low-light color image enhancement method on CIELAB uniform color space is presented in this paper. First, the RGB color space of the input image is transformed into the CIELAB color space. Then, the intensity component on CIELAB space is amplified by using the power law transform (PLT). Next, an image fusion method is used to combine several PLT-based enhanced images to obtain the final enhanced image. Finally, a back-lighting image is used to evaluate the performance of the proposed enhancement method and make comparisons with traditional methods.

    关键词： power law transform,color image enhancement,CIELAB color space,image fusion

    更新于2025-09-04 15:30:14