We study the problem of humanactivity recognition from RGB-Depth(RGBD)sensors when the skeletons are not available.The skeleton tracking in Kinect SDK workswell when the human subject is facing thecamera and there are...We study the problem of humanactivity recognition from RGB-Depth(RGBD)sensors when the skeletons are not available.The skeleton tracking in Kinect SDK workswell when the human subject is facing thecamera and there are no occlusions.In surveillance or nursing home monitoring scenarios,however,the camera is usually mounted higher than human subjects,and there may beocclusions.The interest-point based approachis widely used in RGB based activity recognition,it can be used in both RGB and depthchannels.Whether we should extract interestpoints independently of each channel or extract interest points from only one of thechannels is discussed in this paper.The goal ofthis paper is to compare the performances ofdifferent methods of extracting interest points.In addition,we have developed a depth mapbased descriptor and built an RGBD dataset,called RGBD-SAR,for senior activity recognition.We show that the best performance isachieved when we extract interest points solely from RGB channels,and combine the RGBbased descriptors with the depth map-baseddescriptors.We also present a baseline performance of the RGBD-SAR dataset.展开更多
With the continuous development of the times, cultivating students＇ cross-cultural consciousness is becoming increasingly urgent. The development of new situation requires that college English teachers should also st...With the continuous development of the times, cultivating students＇ cross-cultural consciousness is becoming increasingly urgent. The development of new situation requires that college English teachers should also strengthen students＇ cultural content education and cultivate students＇ cross-cultural consciousness, in order to stimulate students＇ learning interest, optimize students＇ knowledge structure and improve students＇ social cultural ability while introducing language knowledge and conducting listening, speaking, reading and writing training for students. Then, how to cultivate students＇ cross-cultural consciousness in college English teaching？ This paper takes it as the theme for analysis, hoping to improve college English teaching quality.展开更多
Vocational students generally English foundation is weak, not strong interest in learning how to guide students to learn to think independently, to stimulate students＇ curiosity, is a series of problems faced by Engl...Vocational students generally English foundation is weak, not strong interest in learning how to guide students to learn to think independently, to stimulate students＇ curiosity, is a series of problems faced by English teachers in vocational college. In this paper, the issues currently facing vocational English education was of, and the corresponding countermeasures. With the development of economic and trade globalization, increasingly strengthened international exchanges. Society is not only high-level personnel to graduate raised higher and higher English proficiency requirements, the ability to develop applications based English Education in Higher Colleges also put forward higher requirements. Vocalional Training Colleges for professional and technical personnel is an important part of our personnel training requirements for rapid economic development of professional and technical personnel in addition to high technical expertise, but also need to understand the professional literature information inquiry, learning and further education. Therefore, we must from the height of the times and the needs of international competition to recognize new opportunities and challenges of English teaching in higher vocational colleges are facing a variety of approaches and strive to improve our English teaching level.展开更多
基金supported by the National Natural Science Foundation of China under Grants No.61075045,No.61273256the Program for New Century Excellent Talents in University under Grant No.NECT-10-0292+1 种基金the National Key Basic Research Program of China(973Program)under Grant No.2011-CB707000the Fundamental Research Funds for the Central Universities
文摘We study the problem of humanactivity recognition from RGB-Depth(RGBD)sensors when the skeletons are not available.The skeleton tracking in Kinect SDK workswell when the human subject is facing thecamera and there are no occlusions.In surveillance or nursing home monitoring scenarios,however,the camera is usually mounted higher than human subjects,and there may beocclusions.The interest-point based approachis widely used in RGB based activity recognition,it can be used in both RGB and depthchannels.Whether we should extract interestpoints independently of each channel or extract interest points from only one of thechannels is discussed in this paper.The goal ofthis paper is to compare the performances ofdifferent methods of extracting interest points.In addition,we have developed a depth mapbased descriptor and built an RGBD dataset,called RGBD-SAR,for senior activity recognition.We show that the best performance isachieved when we extract interest points solely from RGB channels,and combine the RGBbased descriptors with the depth map-baseddescriptors.We also present a baseline performance of the RGBD-SAR dataset.
文摘With the continuous development of the times, cultivating students＇ cross-cultural consciousness is becoming increasingly urgent. The development of new situation requires that college English teachers should also strengthen students＇ cultural content education and cultivate students＇ cross-cultural consciousness, in order to stimulate students＇ learning interest, optimize students＇ knowledge structure and improve students＇ social cultural ability while introducing language knowledge and conducting listening, speaking, reading and writing training for students. Then, how to cultivate students＇ cross-cultural consciousness in college English teaching？ This paper takes it as the theme for analysis, hoping to improve college English teaching quality.
文摘Vocational students generally English foundation is weak, not strong interest in learning how to guide students to learn to think independently, to stimulate students＇ curiosity, is a series of problems faced by English teachers in vocational college. In this paper, the issues currently facing vocational English education was of, and the corresponding countermeasures. With the development of economic and trade globalization, increasingly strengthened international exchanges. Society is not only high-level personnel to graduate raised higher and higher English proficiency requirements, the ability to develop applications based English Education in Higher Colleges also put forward higher requirements. Vocalional Training Colleges for professional and technical personnel is an important part of our personnel training requirements for rapid economic development of professional and technical personnel in addition to high technical expertise, but also need to understand the professional literature information inquiry, learning and further education. Therefore, we must from the height of the times and the needs of international competition to recognize new opportunities and challenges of English teaching in higher vocational colleges are facing a variety of approaches and strive to improve our English teaching level.
