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Fast and robust traffic sign recognition is very important but difficult for the safety driving assist systems. This study addresses the fast and robust traffic sign recognition to enhance safety driving. We first adopt the typical Hough transform methods to implement coarse-grained locating of the candidate regions (shapes of rectangle, triangle and circle, etc.) of the traffic signs; and then propose...
This paper is concerned with the formation method for multi-robot systems with obstacles. Consensus formation cannot avoid obstacles in the process of movement, and algorithms based on relative distances are not applicable to the situations requiring rigid topology. An algorithm has been designed combining consensus protocols and the modified artificial potential field method for the second-order...
In this paper, we present a self-deployment strategy for a swarm of robots that is capable of exploring and identifying victims in an unknown structured building environment while preserving a global network interConnectivity for information exchange. The strategy are conducted in two phases: self-displacement shifting the robotic swarm from room to room, and self-dispersion and aggregation for exploration...
Learning the scene correlation of uncalibrated static cameras is in increasing demand for intelligent surveillance system, such as making a inference of topology, or allocating computation resources for video retrieval in multirobot system. However, many existing approaches learn the scene correlation among camera views by camera calibration or tracking targets across cameras. They seldom learn the...
Multi-UAVs dynamic task allocation is a hot issue currently in the field of unmanned combat command and control. The dynamic task allocation problem for unexpected new tasks appear in battle field is the focus of this study. In order to fulfill the requirements of time and communication complexity, firstly, this paper establishes a state information model of UAV and UAV groups based on the grouping...
This paper focuses on the design of a gripper that can grasp objects with shape, size and pose uncertainty. Rather than a dexterous hand with multiple actuators and sensors, a passively adaptive gripper made of soft material can conform to various objects by using compliance. In this paper, we present a novel design methodology for a passively adaptive gripper by employing a level-set-based topology...
In order to interact with human flexibly, the robots need lightweight structure to adjust their configuration conveniently and further save operation energy. It is a challenge in design when the robots are proceeding tasks with a huge and heavy body. This paper presents an improved framework of the humanoid robot optimized by the evolutionary structural optimization (ESO) method for lightweight design...
A heterogeneous robotic swarm for fast deployment and exploration in large scale structured environments is addressed in this paper. The swarm consists of a marsupial robot that is capable of carrying the small robots for fast deployment and loading the small robots for fast displacement. The heterogeneous robotic swarm is governed by a hierarchical distributed control including distributed node control...
It is a new challenge in robotics to enable robots with limited communication and sensing capabilities to accomplish complex group tasks. An emerging research is that a robot equipped with wireless network modules acts as a mobile router to bridge the communications of among the robot network. How to configure the robot network topology adaptively to fulfill both the task allocation and execution...
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