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Farid Kendoul Robotics and Control Laboratory, Department of Electronics and Mechanical Engineering, Chiba University, Chiba City 263-8522, Japan e-mail: fkendoul@restaff.chiba-u.jp Zhenyu Yu State Key Laboratory of Rail Traffic Control and Safety, Beijing JiaoTong University, Beijing 100044, China e-mail: yzycn@yahoo.com Kenzo Nonami Robotics and Control(More)
In this paper, we describe a miniature flight platform weighing less than 700 grams and capable of waypoint navigation, trajectory tracking, precise hovering and automatic takeoff and landing. In an effort to make advanced autonomous behaviors available to mini and micro rotorcraft, a lightweight/portable and inexpensive Guidance, Navigation, and Control(More)
This paper presents the development of vision based autonomous helicopter at Chiba University. The platform is designed to enable autonomous flight of a small-scale helicopter in unstructured environment. 3D vision system is chosen for the perception and measurement purpose. The whole system is designed with the consideration of payload, hardware(More)
Nishi [1-3], Backes [4] have built large wall-climbing robots with suction cups. However, designing a micro-robot that can climb walls, walk on ceilings, crawl through pipes and traverse on floors is a challenging task. Autonomous micro-robot system has wide applications include remotely monitoring hazardous environments, reconnaissance, defects inspection,(More)
AIM Our aim was to investigate the relationship between transcription factor 7-like 2 (TCF7L2) polymorphisms and breast cancer susceptibility. METHODS PubMed, Embase and CNKI databases were used to search the related studies investigating the correlation between TCF7L2 polymorphisms and breast cancer susceptibility. Pooled ORs and 95% CIs, based on five(More)
An algorithm is proposed to detect abrupt and gradual scene changes in H.264 compressed videos. In H.264, the inter prediction in the encoding process generates the DC component of the prediction residual. In this paper, we use the DC component of inter prediction residuals as well as motion vectors to detect scene changes. Using the proposed algorithm, we(More)
New generations of motor control digital signal processors (DSPs) lower their supply voltages from 5V to 3.3V to offer higher performance at lower cost. Replacing traditional 5V digital control circuitry by 3.3V designs introduce no additional system cost and no significant complication in interfacing with TTL and CMOS compatible components, as well as with(More)