CAJ | 학술논문

提出一种基于伪信息去除的多层曝光图像序列轮廓波域平滑算法，首先设计图像序列块曝光生成和轮廓边缘检测算法，基于非局部均值滤波进行图像特征提取，对图像进行连续性小波变换，得到图像的伪信息中心矩特征，求得多层曝光图像的最大后验估计算子，最终生成灰度直方图二进制均衡系数，进行特征匹配后得到了去除伪信息的输出图像，实现对轮廓波域平滑算法改进。仿真实验表明，采用该算法得到图像轮廓波域平滑处理后的PSNR最高，保留了图像大部分的细节信息，展示了较好的伪信息去除性能，图像纹理清晰可见，图像的视觉效果更好，实现准确的轮廓波域平滑处理。
제출일충기우위신식거제적다층폭광도상서렬륜곽파역평활산법，수선설계도상서렬괴폭광생성화륜곽변연검측산법，기우비국부균치려파진행도상특정제취，대도상진행련속성소파변환，득도도상적위신식중심구특정，구득다층폭광도상적최대후험고계산자，최종생성회도직방도이진제균형계수，진행특정필배후득도료거제위신식적수출도상，실현대륜곽파역평활산법개진。방진실험표명，채용해산법득도도상륜곽파역평활처리후적PSNR최고，보류료도상대부분적세절신식，전시료교호적위신식거제성능，도상문리청석가견，도상적시각효과경호，실현준학적륜곽파역평활처리。
The multilayer exposure image sequence contourlet domain smoothing algorithm is proposed based on pseudo in?formation removal, first exposure generating and profile edge detection algorithm, non local mean filter based on image fea?ture extraction, continuous wavelet transform of image, get a pseudo Information Center moment feature of image, multi ex?posure images obtained maximum a posteriori estimation operator, finally generate the histogram equalization coefficient ob?tained binary image feature matching, output after removal of false information, thus improving the contourlet domain smoothing algorithm. Simulation results show that, the algorithm of image contours has the highest PSNR, it retains the de?tail information of the image most, it shows pseudo information removal performance good, texture is clear, it has better visu?al effect of image, the contourlet domain quasi smooth processing is improved.