ID 原文 译文
40976 首先通过图像熵最大化准则估计最佳曝光度，然后利用相机响应模型合成最佳曝光度图像，并基于自适应的权重评估方法融合弱光照图像和最佳曝光度图像，最后利用改进的BM3D (Block-matching And 3D Filtering)方法对融合图像去噪。 Firstly, the optimal exposure is estimated by the image entropy maximization criterion.Secondly, the camera response model is used to synthesize the optimal exposure image.Thirdly, the low-light image and the optimal exposure image are fused based on the adaptive weight evaluation method.Finally, the improved BM3 D(block-matching and 3 D filtering) method is used to denoise the fusion image.
40977 所提方法在公开数据集和GIS设备的密闭腔体内进行了验证。 The proposed method is validated in a closed chamber of open data set and GIS equipment.
40978 实验结果表明，本文方法能够增加图像熵，减少图像噪声，提高低光照部分的亮度，保护图像自然度。 Experimental results show that the proposed method could increase the entropy of the image, reduce the noise of the image, improve the brightness of the low-light part, and protect image naturalness.
40979 针对目前彩色图像加密方案存在的效果差、安全性低等问题，提出了一种基于DNA编码和比特级置乱的彩色图像加密算法。 A color image encryption algorithm based on DNA coding and bit-level scrambling is proposed to solve the problems of poor effect and low security in the current color image encryption schemes.
40980 该算法通过对选取DNA编码规则的均匀程度进行评价，使DNA的8种编码规则可以随机并且更加均匀的被选取。首先基于比特级置乱规则对彩色图像进行预处理; Firstly, the color image is preprocessed based on bite-level scrambling rules.
40981 再使用DNA编码和循环移位的方式改变RGB平面本身的统计信息; Then the statistical information of the RGB plane itself was changed by means of DNA coding and cyclic shift.
40982 最后使用S盒对DNA译码后的像素值进行非线性替换。 Finally, S-box is used for nonlinear replacement of pixel values after DNA decoding.
40983 理论分析和仿真结果表明，算法可以提供更大的密钥空间，密文图像也具有更高的信息熵，具有良好的安全性。 Theoretical analysis and simulation results show that the algorithm can provide a larger key space, the cipher image also has higher information entropy, and has good security.
40984 针对水下环境采集到图像质量发生严重退化的问题，提出了基于非下采样轮廓波变换(Non-subsample Contourlet Transform， NSCT)的水下图像清晰化算法。 A non-subsample Contourlet Transformalgorithm for underwater image sharpening was proposed to reduce the degradation of underwater image quality.
40985 先对图像预处理，补偿红色通道，再进行白平衡和锐化， First, the image is preprocessed, the red channel is compensated, and then the white balance and sharpening are carried out.