近红外照相显现深色衣料上血迹的实验研究 |
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引用本文: | 朱晓斌,张立新,赵学智,邢思远,郝文奇,潘新云,肖荣峰. 近红外照相显现深色衣料上血迹的实验研究[J]. 刑事技术, 2010, 0(5): 29-31 |
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作者姓名: | 朱晓斌 张立新 赵学智 邢思远 郝文奇 潘新云 肖荣峰 |
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作者单位: | 北京市公安局刑侦总队,北京,100192 |
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基金项目: | 公安部应用创新计划资助项目 |
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摘 要: | 目的运用近红外反射照相技术,显现深色衣料上的全血及稀释血迹。方法取单个体人全血,用纯净水分别以1∶4、1∶8、1∶16、1∶32比例稀释,并立即将稀释血及全血分别滴落在10种组份共21块深色衣料上,使其自然干燥形成血迹,用普通数码相机及专业红外数码相机,分别对血迹进行拍照获取彩色图像及红外黑白图像。结果红外照相显现血迹优于彩色图像;不同衣料相同浓度稀释血迹的红外图像存在差异;相同衣料不同浓度血迹的红外图像亦有所不同。结论近红外红外照相可以很好地显现深色衣料上的血迹,血迹的红外图像形状有助于判断是否为稀释血液所形成;血液浓度对红外显现结果的影响较大。
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关 键 词: | 近红外反射照相 血痕显现 血液浓度 |
Application of infrared photography to reveal bloodstains on dark color clothes |
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Affiliation: | ZHU Xiao-bin,ZHANG Li-xin,ZHAO Xue-zhi ,et al. (Forensic Medical Examination Center Beijing Public Security Bureau,Beijing 100192,China) |
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Abstract: | Blood and diluted blood were dropped on dark clothes,and then the infrared photography was used to reveal the stains. The results showed that infrared photography is better than ordinary color photography for revealing bloodstains on dark clothes. For different clothes materials and the blood's concentration,the images of infrared were different. |
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Keywords: | bloodstain infrared photography diluted blood |
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