A robust incremental learning framework for accurate skin region segmentation in color images

Authors:
Bin Li;Xiangyang Xue;Jianping Fan
Affiliations:
Department of Computer Science and Engineering, Fudan University, Shanghai 200433, China;Department of Computer Science and Engineering, Fudan University, Shanghai 200433, China;Department of Computer Science, UNC-Charlotte, Charlotte, NC 28223, USA
Venue:
Pattern Recognition
Year:
2007

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Abstract

In this paper, we propose a robust incremental learning framework for accurate skin region segmentation in real-life images. The proposed framework is able to automatically learn the skin color information from each test image in real-time and generate the specific skin model (SSM) for that image. Consequently, the SSM can adapt to a certain image, in which the skin colors may vary from one region to another due to illumination conditions and inherent skin colors. The proposed framework consists of multiple iterations to learn the SSM, and each iteration comprises two major steps: (1) collecting new skin samples by region growing; (2) updating the skin model incrementally with the available skin samples. After the skin model converges (i.e., becomes the SSM), a post-processing can be further performed to fill up the interstices on the skin map. We performed a set of experiments on a large-scale real-life image database and our method observably outperformed the well-known Bayesian histogram. The experimental results confirm that the SSM is more robust than static skin models.