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吉大"最牛论文抄袭":大多雷同 赞导师品格高洁

2016-03-17 10:49:15   澎湃新闻

如,朱笑笑论文第二章引言为:“近景摄影测量理论是本课题使用的基础理论。该理论建立起了被测量坐标空间到像片坐标空间的映射关系,这种映射关系是两个坐标空间的相对位置及相机参数的函数。通过该映射关系就可以进行相机的内外部元素标定和物体位置的测量。这两种应用是一对相反的过程,相机的内外部元素标定即已知真实空间坐标和相应照片空间坐标来求解相机的参数。而物体位置的测量即已知相机的参数和照片空间坐标求解真实空间坐标。本章主要对近景摄影测量原理进行介绍。”

李锐论文则写道:“近景摄影测量理论是本课题使用的基础理论之一。该理论建立起了被测量坐标空间到像片坐标空间的映射关系,这种映射关系是两个坐标空间的相对位置及相机参数的函数。通过该映射关系就可以进行相机的内外部元素标定和物体位置的测量。这两种应用是一对相反的过程,相机的内外部元素标定即已知真实空间坐标和相应照片空间坐标来求解相机的参数。而物体位置的测量即已知相机的参数和照片空间坐标求解真实空间坐标。本章主要对近景摄影测量原理进行介绍。”

这两段中,李锐论文除多了“之一”一词之外,和朱笑笑论文完全雷同。

再以两篇论文的第三章为例,整章内容高度重合,多个段落的断行处位置都一致。

比如“小范围三维空间测量实验”小节中,朱笑笑论文在“实验方案”中写道:“对于三维摄影测量,标定点一定要有三维坐标,实验中制作了若干具有一定高度的杆状标志物如图3.2(a),以该标志物顶端的直径为2mm的圆点为标定点。为了构建三维物方坐标系,将一张网络坐标纸平铺于地面,以网格纸的两条边分别为x、y轴构成xy平面,以垂直于地面向上的方向为z向,以网格纸的左上角为原点,构成的三维坐标系如图3.2(b)。由于网格纸最小刻度为1mm,所以标定点x及y向位置误差为0.5mm。通过测量z向误差为1mm。”

李锐论文则写道:“对于三维摄影测量,标定点一定要有三维坐标,实验中制作了若干具有一定高度的杆状标志物如图3.2(a),以该标志物顶端的直径为2mm的圆点为标定点。为了构建三维物方坐标系,将一张网络坐标纸平铺于地面,以网格纸的两条边分别为x、y轴构成xy平面,以垂直于地面向上的方向为z向,以网格纸的左上角为原点,构成的三维坐标系如图3.2(b)。由于网格纸最小刻度为1mm,所以标定点x及y向位置误差为0.5mm。通过测量z向误差为1mm。”

以上两段内容毫无差别。不光实验方案一模一样,测量数据和误差也完全一致。

朱笑笑论文第四章系统地论述了测量系统的构建及现场试验研究。在章末的“试验结论”中写道:“现场试验结果表明,基于近景摄影技术的落点数据测量达到了理想的精度,比目测法的精度有了很大的提高。在测量时因为只需一次标定,即可进行多次反复的测量,所以测量方便,效率高,同时由于采用了遥控的方法进行拍摄从而大大改善了测量环境,使测量更加安全。所以可以得出结论,将近景摄影测量技术应用到直升机落点数据采集中来是可行的,不但能达到较高得精,而且测量更加方便、安全。”

李锐论文第五章也论述同一内容。“试验结论”则为:“现场试验结果表明,基于近景摄影技术的落点数据测量达到了理想的精度,比目测法的精度有了很大的提高。在测量时因为只需一次标定,即可进行多次反复的测量,所以测量方便,效率高,同时由于采用了遥控的方法进行拍摄从而大大改善了测量环境,使测量更加安全。所以可以得出结论,将近景摄影测量技术应用到直升机落点数据采集中来是可行的,不但能达到较高得精,而且测量更加方便、安全。”

责任编辑:赵逸 CN039
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