弹丸立靶坐标的图像处理算法研究

Image Processing Algorithm of the Pill Coordinates

在弹丸密集度测试系统试验过程中,需要判读纸靶上的坐标与密集度测试系统计算的弹丸着靶坐标进行对比,提出利用图像处理判读纸靶上坐标的方法。该方法通过相机获取纸靶图像,然后采取图像处理的算法对图像进行预处理与弹孔识别,得到每个弹孔的像面坐标,最后通过相机标定和坐标转换计算弹孔的实际坐标。试验表明,该算法对弹丸目标识别较准确,是一种有效、实用的纸靶判读方法。

During testing of the intensive testing system, need to read the coordinates on the target paper and contrast with calculating coordinates of the testing system,a method which uses image processing is proposed. First, image of target paper is acquired by camera, then the pill holes are preprocessed andidenhified,each holes image plane coordinates are gained. Finally, the actual coordinates of pill holes, through camera calibration and coordinate conversion. Test shows that the algorithm is more accurate for recognize pill aim, and is an effective and practical method.