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中文摘要：
为了解决传统的图像增强方法中背景和裂痕区之间的对比度拉伸不足，致使基于图像处理的道路裂纹线自动检测方法不能有效地提取道路裂纹线的问题，基于破损道路裂纹线所呈现的特点，由图像脊波变换等效于拉东变换域一维小波分解的原理出发，提出了一种新的适用于道路裂纹线检测的脊波域图像增强算法。试验结果及其与其他图像增强算法的结果对比均表明：该算法能够有效地增强道路裂纹图像中的线状特征，有利于破损道路裂纹线的检测。
英文摘要：
In order to solve the problem that traditional image enhancement algorithms can＇t enough enhance the contrast between the backgrounds and cracks so that automatic detection method of road cracks based on image treating can＇t effectively be used to distill road crack, aimed at character of damage road crack, based on the principle that an image ridgelet transform is equivalent to one dimensional wavelet transform in Radon transform domain, a new image enhancement algorithm in ridgelet domain was proposed for detection of road cracks. Experiment results and their comparisons with other image enhancement algorithms show that the algorithm can be effectively used in enhancement of linear character of road crack image and it is feasible in the application of detection of road cracks.
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