To address the issue of deteriorated PCB image quality in the quality inspection process due to insufficient or uneven lighting, we proposed an image enhancement fusion algorithm based on different color spaces. First...To address the issue of deteriorated PCB image quality in the quality inspection process due to insufficient or uneven lighting, we proposed an image enhancement fusion algorithm based on different color spaces. Firstly, an improved MSRCR method was employed for brightness enhancement of the original image. Next, the color space of the original image was transformed from RGB to HSV, followed by processing the S-channel image using bilateral filtering and contrast stretching algorithms. The V-channel image was subjected to brightness enhancement using adaptive Gamma and CLAHE algorithms. Subsequently, the processed image was transformed back to the RGB color space from HSV. Finally, the images processed by the two algorithms were fused to create a new RGB image, and color restoration was performed on the fused image. Comparative experiments with other methods indicated that the contrast of the image was optimized, texture features were more abundantly preserved, brightness levels were significantly improved, and color distortion was prevented effectively, thus enhancing the quality of low-lit PCB images.展开更多
Tin - based composite oxides anode materials for lithium - ion thin - film batteries have been prepared by high - erergy ball - milling method.The phase evolution,morphology and electrochemical properties of the mater...Tin - based composite oxides anode materials for lithium - ion thin - film batteries have been prepared by high - erergy ball - milling method.The phase evolution,morphology and electrochemical properties of the materials were investigated by X - ray diffraction,scanning electron microscopy,cyclic voltammetry,charge - discharge test.The re - sults show milling can cause the stannous oxide crystal losing its crystalli ne character and becoming the amor - phous structure.The particle size of the powder materials decreases with the increase of ball - milling time.The re - versible specific capacity is more than578mAh·g -1 and its capacity loss per cycle is only0.31%after being cy - cled20times,which indicates that the material prepared by this method has go od electrochemical behavior and may be a candidate for the next generation anode materials for lithiumn ion batteries.展开更多
文摘To address the issue of deteriorated PCB image quality in the quality inspection process due to insufficient or uneven lighting, we proposed an image enhancement fusion algorithm based on different color spaces. Firstly, an improved MSRCR method was employed for brightness enhancement of the original image. Next, the color space of the original image was transformed from RGB to HSV, followed by processing the S-channel image using bilateral filtering and contrast stretching algorithms. The V-channel image was subjected to brightness enhancement using adaptive Gamma and CLAHE algorithms. Subsequently, the processed image was transformed back to the RGB color space from HSV. Finally, the images processed by the two algorithms were fused to create a new RGB image, and color restoration was performed on the fused image. Comparative experiments with other methods indicated that the contrast of the image was optimized, texture features were more abundantly preserved, brightness levels were significantly improved, and color distortion was prevented effectively, thus enhancing the quality of low-lit PCB images.
文摘Tin - based composite oxides anode materials for lithium - ion thin - film batteries have been prepared by high - erergy ball - milling method.The phase evolution,morphology and electrochemical properties of the materials were investigated by X - ray diffraction,scanning electron microscopy,cyclic voltammetry,charge - discharge test.The re - sults show milling can cause the stannous oxide crystal losing its crystalli ne character and becoming the amor - phous structure.The particle size of the powder materials decreases with the increase of ball - milling time.The re - versible specific capacity is more than578mAh·g -1 and its capacity loss per cycle is only0.31%after being cy - cled20times,which indicates that the material prepared by this method has go od electrochemical behavior and may be a candidate for the next generation anode materials for lithiumn ion batteries.
