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It is important to detect and recognize the traffic sign for mobile robot localization and navigation. In this paper, an algorithm frame of feature detection and matching has been developed which includes shape detection, Harris corner detection, SIFT feature matching and robust estimation method. Firstly, the color threshold segmentation algorithm in RGB color space is adopted to get the candidate...
Feature extraction is an important research topic in the field of pattern recognition. The class-specific idea tends to recast a traditional multi-class feature extraction and recognition task into several binary class problems, and therefore inevitably class imbalance problem, where the minority class is the specific class, and the majority class consists of all the other classes. However, discriminative...
Bowel sound (BS) is an important parameter in clinical diagnosis and therapy. Auto-identifying the kind of BS has an important significance in helping the medical staff to analysis the status of the critical patients' intestinal peristalsis and to select the most effective treatment. According to the BS signals' characteristics, such as complicated noise, poor periodicity and strong randomization,...
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