Tongue Shape Detection Based on B-Spline

Human tongue is the only organ of human, which can be laid out. It takes an important role in traditional Chinese medicine (TCM) because of its abundant biomedical information. With the progress of modernization of TCM, computerization of tongue diagnosis attracts the researchers´ interesting. Thus, how to get an accurate tongue region becomes a key of automatic tongue diagnosis. However, tongue images segmentation is difficult for some physiological properties: tongue is non-rigid and has a high degree of variability in size, shape, color and texture. This paper presents a novel tongue detection method based on B-spline. Applying this method to tongue image, we can get the satisfying results with the respect to robust and veracity