基于变焦原理的图像清晰化处理在交通事故鉴定中的应用

Application of the Zooming Principle for Image Enhancement in Forensic Traffic Accident Investigation

目的介绍一种利用变焦原理解决交通事故鉴定中视频图像模糊的方法。方法利用相机在原模糊视频拍摄位置以不同焦距拍摄局部清晰照片,然后对清晰图像和模糊视频截图进行配准,最后利用图像融合覆盖实现对模糊图像的局部清晰化处理。结果 6组实验均取得满意结果,处理后图像与对照图像中的目标景物位置基本相同。结论可利用变焦原理使模糊的事故视频图像清晰化。

Objective To establish a image enhancement method based on the zooming principle for blurred videos or images in traffic accident investigation. Method High quality photos with different focuses were taken at the exact place where the original blurry videos were made. Then the high quality images were matched with the blurring videos and images. Finally, the new clear images and videos were obtained through image fusion. Results Satisfactory results were obtained in all six groups of experiments, and the reference scenery targets in processed photos were in the same position as the ones in control images. Conclusion This zooming method can be used to improve blurred traffic accident videos or images.