Ghislain Fouodji Tasse Supervisor: Dr. Karen Bradshaw Computer Science Department Rhodes University 04 August 2009.

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Presentation transcript:

Ghislain Fouodji Tasse Supervisor: Dr. Karen Bradshaw Computer Science Department Rhodes University 04 August 2009

 Robot Spatial Perception: it is the way the robot perceives it environment and interacts with it.  Cognitive mapping: different AI approaches that can be implemented to built self mapping intelligence into a robot.  Cognitive Robot Mapping: cognitive mapping theories are interpreted and converted into algorithms that can be implemented in robot, with respect to its perception of the environment.

 Metric map: is the capture of the geometric properties of an environment.  Topological map: is the capture of qualitative and relational information of the objects in an environment.

 Hybrid map: it contains both metric and topological information of the environment.

 Odometry Errors: these errors result from the limitation of robot sensors.  SLAM: Simultaneous Localization and Mapping problem.  Dynamic Environments: How does the robot cope with the change in the environment.

 Vision Based Mapping: this mapping focuses on the visual information the robot gets from the environment.  Shaped Based Mapping: this mapping focuses on the geometric information the robot gets from the environment.

 LSR: Local Space Representation is the representation of the space the robot is currently experiencing.

 GSR: Global Space Representation is the combination of independent local space representation.

 Grid Algorithms: treats the environment as an unstructured array with composed cells that are independently either occupied or unoccupied.

 Robot: Lego Mindstroms NXT (2 motors and 4 ultrasonic sensors)  Bluetooth Connection  Programming Languages: C/C++  IDE: Visual C++

 This research is a first step and can be extended to achieve complete and optimal self navigation with free collision in the real world by a robot.  The concept of cognition could be extended to other area in robotics such as natural language processing.  This project can be extended from an indoor environment mapping to an outdoor environment mapping.