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Digital Enhancement of Language Learning: Students as Classroom Learning Resource
( Yasunari Harada ),( Mayumi Kawamura ),( Kanako Maebo ) 경희대학교 언어연구소 2007 언어연구 Vol.24 No.1
The first author has designed and implemented college English classes emphasizing face-to-face oral interactions within small groups of students in class, presupposing and expecting further cultivation of learners` ability to learn for themselves, by themselves and among themselves. In this paper, we discuss some of the pedagogical considerations behind those designs of class activities and touch upon a related project on digitally recording students` interactions. It is interesting to notice, in passing, how introduction of various recording devices into those language classes positively affect students` motivations and performances in their learning activities.
Preliminary Study of Needle Tracking in a Microsurgical Robotic System for Automated Operations
Yusuke Kurose,Young Min Baek,Yuya Kamei,Shinichi Tanaka,Kanako Harada,Shigeo Sora,Akio Morita,Naohiko Sugita,Mamoru Mitsuishi 제어로봇시스템학회 2013 제어로봇시스템학회 국제학술대회 논문집 Vol.2013 No.10
Surgical needle tracking is an important element of high-level automated operations conducted by surgical robotic systems. However, conventional needle tracking algorithms lack robust performancewith different needle postures and are not applicable to the small needles used during microsurgery. This paper discusses a robust, efficient needle tracking algorithm, which is capable of estimating all of the positions and of the postures of a microsurgical needle. In the preoperative preparation stage, contour models of the microsurgical needle are generated using a 3-D CAD model and saved in a database. During the operation, the system extracts the contours of the microsurgical needle from the microscopic image using the edge and the color information. The system then calculates the likelihood of the contour models in the database bymatching the contours extracted fromthemicroscopic image. The experimental results indicated that our proposed method has high accuracy when tracking a microsurgical needle, and that it performed robustly with different needle postures.