The scale, shape and position are three main factors to forecast tropical cyclone. The aim of the paper is to recognize tropical cyclone （TC） in the satellite cloud pictures according to the scale, shape and positio...The scale, shape and position are three main factors to forecast tropical cyclone. The aim of the paper is to recognize tropical cyclone （TC） in the satellite cloud pictures according to the scale, shape and position of clouds. The study includes Canny edge detection, contour extraction and other techniques. The solutions are also established. The experiments show that the method can recognize the TC in the satellite pictures. The study is beneficial for TC track.展开更多
As the requirements of production process is getting higher and higher with the reduction of volume,microphone production automation become an urgent need to improve the production efficiency.The most important part i...As the requirements of production process is getting higher and higher with the reduction of volume,microphone production automation become an urgent need to improve the production efficiency.The most important part is studied and a precise algorithm of calculating the deviation angle of four types microphones is proposed,based on the feature extraction and visual detection.Pretreatment is performed to achieve the real-time microphone image.Canny edge detection and typical feature extraction are used to distinguish the four types of microphones,categorizing them as type M1 and type M2.And Hough transformation is used to extract the image features of microphone.Therefore,the deviation angle between the posture of microphone and the ideal posture in 2Dplane can be achieved.Depending on the angle,the system drives the motor to adjust posture of the microphone.The final purpose is to realize the high efficiency welding of four different types of microphones.展开更多
基金supported by the Liaoning Natural Science Foundation(No.L2010055)
文摘The scale, shape and position are three main factors to forecast tropical cyclone. The aim of the paper is to recognize tropical cyclone （TC） in the satellite cloud pictures according to the scale, shape and position of clouds. The study includes Canny edge detection, contour extraction and other techniques. The solutions are also established. The experiments show that the method can recognize the TC in the satellite pictures. The study is beneficial for TC track.
基金supported by the Project of Youth Fund of the National Natural Science Foundation (No. 61203208)the National Natural Science Foundation of China(No.61327802)the Specialized Research Fund for the Doctoral Program of Higher Education (No.2013320111 0009)
文摘As the requirements of production process is getting higher and higher with the reduction of volume,microphone production automation become an urgent need to improve the production efficiency.The most important part is studied and a precise algorithm of calculating the deviation angle of four types microphones is proposed,based on the feature extraction and visual detection.Pretreatment is performed to achieve the real-time microphone image.Canny edge detection and typical feature extraction are used to distinguish the four types of microphones,categorizing them as type M1 and type M2.And Hough transformation is used to extract the image features of microphone.Therefore,the deviation angle between the posture of microphone and the ideal posture in 2Dplane can be achieved.Depending on the angle,the system drives the motor to adjust posture of the microphone.The final purpose is to realize the high efficiency welding of four different types of microphones.
