科研之友
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摘要
The total variation (TV) model is one kind of second-order partial differential equation (PDE) for image noise removal. However, the second-order PDEs suffer from the so-called staircase effect. Proposed is a modified TV (MTV) model, which is staircase-free by minimising the variation of the image along the direction tangential to the iso-photes of the original image. Its effectiveness in preserving edges, avoiding staircases and removing noises is shown by experiment and comparison.
