Abstract
Image-based positioning accuracy is usually affected by image rotation and/or distortion due to the changes of the sensor orientation. In this paper, the artificial landmark is composed of color block with different shapes, and its topology pattern is composed of the number of the block shapes, colors, shape and color of each block and topological relation among the blocks, which are robust for the artificial landmark rotation and/or tilting. The positioning is based on artificial landmark pattern matching and the corresponding relation between artificial landmark and its position. In our experiments, 196 different artificial landmarks are layered on the 3 × 3M plane uniformly. There are four blocks in an artificial landmark and each block has six different shapes and four different colors. The experiment results show that the attributions of the block were calculated accurately, the topology pattern construction and recognition method for the artificial landmark are feasible, reliable and can be used in monocular vision positioning.
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