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This paper studies the effect of different color fringe projection sequences for 3D shape measurement of general objects. A novel color correction method is also presented for reducing the image color errors induced from color coupling effect and color imbalance effect. First, three sequences of projected fringe patterns, including basic projection sequence, disordered projection sequence and ordered...
In this paper, we present methodology to Content Based Image Retrieval (CBIR), focusing on developing an efficient image retrieval methodology. This scheme include: a new indexing method based on fuzzy logic to incorporate color, texture, and shape information into a region based approach to improving the retrieval effectiveness and robustness, a novel hierarchical indexing structure and the corresponding...
This paper presents a road signs detection, recognition and tracking system based on multi-cues hybrid. In detection stage, the color and gradient cues are used to segment the interesting regions, and the corner and geometrical cues are used to detect the signs. A pseudo RGB-HSI conversion method without the need of nonlinear transformation is presented for color extraction. In recognition stage,...
In mineral processing, mineral flotation is a widely used traditional method for obtaining minerals. Normally, the froth surface is monitored and controlled by an operator who has good experiences for production optimisation, which is tedious and personal dependent. In order to overcome these disadvantages, a machine vision system was developed for monitoring froth surface variation. This paper presents...
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