采用短波紫外线定向反射法拍摄白色瓷砖表面上的灰尘指纹。并进行系列曝光实验,照明角度的实验,以确定相关曝光参数,从中发现白色瓷砖对灰尘指纹的影响程度,找出短波紫外线拍摄灰尘指纹的一些规律和技巧。同时通过实验,从样本采集入手,获取原始的、无损坏的、低成本的优质检材。避免因采样不当造成检材质量不佳,影响检验,而要进行二次图像处理,致使检材可能受损, Shoot the dust fingerprints on the white tile surface using shortwave UV-directed reflection. And a series of exposure experiments, lighting experiments to determine the relevant exposure parameters, which found the white tile on the extent of the impact of dust fingerprinting to identify some of the rules and techniques of short-wave UV shooting dust fingerprints. At the same time through experiments, from the sample collection to get the original, non-destructive, low-cost high-quality samples. To avoid poor sample quality caused by poor sampling, the impact of inspection, but to carry out secondary image processing, resulting in material may be damaged,