Towards a Calibration-Free Robot: The ACT Algorithm for Automatic Online Color Training
RoboCup 2006: Robot Soccer World Cup X
Adaptive Recognition of Color-Coded Objects in Indoor and Outdoor Environments
RoboCup 2007: Robot Soccer World Cup XI
Auto Exposure Control for Multiple-Slope Cameras
ICIAR '08 Proceedings of the 5th international conference on Image Analysis and Recognition
Arbitrary Ball Recognition Based on Omni-Directional Vision for Soccer Robots
RoboCup 2008: Robot Soccer World Cup XII
Fusion of multi-exposure images
Image and Vision Computing
A new automatic exposure system for digital still cameras
IEEE Transactions on Consumer Electronics
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How to make vision system work robustly under dynamic light conditions is still a challenging research focus in robot vision community. In this paper, a novel camera parameters auto-adjusting method based on image entropy is proposed. Firstly image entropy is defined and its relationship with camera parameters is verified by experiments. Then how to optimize the camera parameters based on image entropy is proposed to make robot vision adaptive to the different light conditions. The algorithm is tested using the omnidirectional vision system in indoor RoboCup Middle Size League environment and outdoor RoboCup-like environment, and the results show that our method is effective and color constancy to some extent can be achieved.