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Global total variation minimization. (English) Zbl 0957.49002

Summary: The minimization of the total variation is an important tool of image processing. A lot of authors have addressed the problem and developed algorithms for image denoising. In this paper we present an alternative approach of the total variation minimization problem. After an introduction to the topic and a review of related work, we give a short development of the bounded variation (BV) background. Then we present our global total variation minimization model and proof its validity. Furthermore, we introduce a practical algorithm which handles digital image data and we give experimental results.

MSC:

49J10 Existence theories for free problems in two or more independent variables
26B30 Absolutely continuous real functions of several variables, functions of bounded variation
68U10 Computing methodologies for image processing
35Q80 Applications of PDE in areas other than physics (MSC2000)
65K10 Numerical optimization and variational techniques
49J20 Existence theories for optimal control problems involving partial differential equations
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