运动动作图像正确姿态轮廓提取方法对比研究
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摘要
由于目标轮廓提取方法一直存在正确姿态轮廓提取不准确的问题,提出两种新的运动动作图像正确姿态轮廓提取对比方法。通过相邻帧差法对运动动作图像正确姿态区域进行提取,在此基础上介绍了snake模型方法,其将运动动作图像正确姿态轮廓的提取问题转换成求解能量函数的极小化问题。分析了水平集方法,将演化曲线隐性地描述成运动动作图像上的三维连续函数曲面的零水平集,当水平集函数为0时,得到的结果即为轮廓提取结果。通过实验对比所提两种方法的有效性,发现snake模型方法的轮廓提取效果、完成性和信息丢失程度虽然优于其他方法,但劣于水平集方法。
The traditional method of target contour extraction has the problem of incorrect pose contour extraction. Two new comparative methods of correct posture contour extraction for moving action image are proposed,in which the adjacent frame difference method is used to extract the correct pose region of the moving action image. The snake model method is introduced to convert the correct pose contour extraction from moving action image into the solving of energy function minimization. The level set method is analyzed,in which the evolution curve is implicitly described as the zero level set of the 3 D continuous function surface on the moving action image. When the level set function is zero,the obtained result is deemed as the contour extraction result. By comparing the effectiveness of the two methods,it is found that the snake model method is better than other methods in the aspects of contour extraction effect,completeness and information loss rate,but is inferior to the level set method.
The traditional method of target contour extraction has the problem of incorrect pose contour extraction. Two new comparative methods of correct posture contour extraction for moving action image are proposed,in which the adjacent frame difference method is used to extract the correct pose region of the moving action image. The snake model method is introduced to convert the correct pose contour extraction from moving action image into the solving of energy function minimization. The level set method is analyzed,in which the evolution curve is implicitly described as the zero level set of the 3 D continuous function surface on the moving action image. When the level set function is zero,the obtained result is deemed as the contour extraction result. By comparing the effectiveness of the two methods,it is found that the snake model method is better than other methods in the aspects of contour extraction effect,completeness and information loss rate,but is inferior to the level set method.
引文
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[3]苗树艳,金忠.一种面向三维人脸识别的同一截面有效轮廓线提取算法[J].计算机应用与软件,2015,32(10):244-247.MIAO Shuyan,JIN Zhong.A 3D face recognition-oriented extraction algorithm for effective contours on same section[J].Computer applications and software,2015,32(10):244-247.
[4]杜美.第12届全运会男子跳远运动员起跳技术的运动学研究[J].体育科技,2015,36(4):21-22.DU Mei.Kinematic analysis of take-off technique of men′s long jump in the 12th National Games[J].Sport science and technology,2015,36(4):21-22.
[5]董本志,康欣,任洪娥.植物叶片轮廓特征提取方法研究[J].计算机工程与应用,2015,51(8):143-147.DONG Benzhi,KANG Xin,REN Honge.Plant leaves contour feature extraction method[J].Computer engineering and applications,2015,51(8):143-147.
[6]王培珍,丁海涛,刘纯利,等.基于结构元的煤显微图像轮廓提取算法[J].煤炭学报,2014,39(z1):285-288.WANG Peizhen,DING Haitao,LIU Chunli,et al.Coal microscope image contour extraction algorithm based on structuring elements[J].Journal of China coal society,2014,39(S1):285-288.
[7]陈敏,王涛,钱竞光.我国优秀男子蹦床运动员网上起跳动作技术特征分析[J].南京体育学院学报(自然科学版),2014,13(4):44-48.CHEN Min,WANG Tao,QIAN Jingguang.Our elite trampoline athletes in action technical characteristics off[J].Journal of Nanjing Institute of Physical Education(natural science),2014,13(4):44-48.
[8]江山.基于形体轮廓特征提取的运动动作标志分析[J].科技通报,2015,31(8):84-86.JIANG Shan.Movement action mark analysis based on body contour feature extraction[J].Bulletin of science and technology,2015,31(8):84-86.
[9]家建奎,齐敏,李珂.基于块处理的直线型标志符高精度轮廓提取技术研究[J].电子设计工程,2014,22(20):164-167.JIA Jiankui,QI Min,LI Ke.The research about high precise extraction of linear mark outline based on block operation algorithm[J].Electronic design engineering,2014,22(20):164-167.
[10]陈阳,陈霞,汪军.基于图像处理的织物覆盖系数检测[J].西安工程大学学报,2016,30(1):16-20.CHEN Yang,CHEN Xia,WANG Jun.Inspection on the cover factors of fabric based on image processing[J].Journal of Xi’an Polytechnic University,2016,30(1):16-20.