自然图像抠图中封闭形式方法的改进

2010 International Conference on Digital Image Computing: Techniques and Applications Pub Date : 2010-12-01 DOI:10.1109/DICTA.2010.110

Jun Zhu, Dengsheng Zhang, Guojun Lu

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引用次数: 2

摘要

自然图像抠图是一项估计图像前景层不透明度分数的任务。已经提出了许多消光方法，其中大多数是基于trimap的。在这些方法中，封闭形式的抠图提供了基于trimap和基于潦草的抠图。然而，由于过度平滑，封闭形式的方法在背景孔区域会产生很大的误差。在本文中，我们找出了问题的根源，并提出了改进封闭形式方法的方法。实验表明，改进后的方法可以提高基于trimap的图像的裁剪精度，并获得与基于潦草的封闭格式方法相似的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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An Enhancement to Closed-Form Method for Natural Image Matting

Natural image matting is a task to estimate fractional opacity of foreground layer from an image. Many matting methods have been proposed, and most of them are trimap-based. Among these methods, closed-form matting offers both trimap-based and scribble-based matting. However, the closed-form method causes significant errors at background-hole regions due to over-smoothing. In this paper, we identify the source of the problem and propose our solution to enhance the closed-form method. Experiments show that our enhanced method can improve the accuracy for trimap-based images and obtain similar result to the closed-form method for scribble-based matting.

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2010 International Conference on Digital Image Computing: Techniques and Applications

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