基于图像处理的单摆测量重力加速度实验的研究  

Measurement of Gravity Acceleration by Single Pendulum Based on Image Processing

作　　者：黄膺达 王旗[2] HUANG Yingda;WANG Qi(School of Computer Science and Engineering,Northeastern University,Shenyang 110169,China;College of Sciences,Northeastern University,Shenyang 110004,China)

机构地区：[1]东北大学计算机科学与工程学院,辽宁沈阳110169 [2]东北大学理学院,辽宁沈阳110004

出　　处：《大学物理实验》2020年第5期11-14,共4页Physical Experiment of College

基　　金：东北大学PBL教学法研究与应用项目(NEUJX04217)。

摘　　要：为了研究图像处理技术在物理实验中的应用,设计了一种用图像处理完成单摆测量重力加速度的实验方案。综合物理实验、图像处理和信号分析的知识,借助OpenCV的库函数对视频中摆动的小球进行识别,获取小球的位置信息,并对数据进行自动分析和计算。同时,在算法上进行了相关的优化,使识别更加准确。通过实际运行,图像处理顺利的完成了实验,证明图像处理技术在物理研究中具有应用价值,值得进一步探索。In order to study the application of image processing technology in physical experiments,an experimental scheme of measuring gravity acceleration with single pendulum by image processing is designed.Based on the knowledge of physical experiment,image processing and signal analysis,the library function of OpenCV is used to identify the swinging ball in the video,obtain the position information of the ball,and automatically analyze and calculate the data.At the same time,the algorithm is optimized to make the recognition more accurate.Through actual operation,the image processing has successfully completed the experiment,proving that the image processing technology plays a significant role in physical research.

关 键 词：OPENCV 单摆 重力加速度 经典实验的创新方法 

分 类 号：O4-39[理学—物理]