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Using multi-layer random walker to solve image segmentation
Thesis

Using multi-layer random walker to solve image segmentation

Sang, Mao Jia
Masters, 國立清華大學, 資訊工程學系
2014

Abstract

影像切割 隨機漫步演算法 Image segmentation Random walks algorithm
The purpose of image segmentation problem is to separate some areas from the input image. In general, image segmentation can be consider as a label decision problem which assign different labels to every pixel according to its features. In this paper, we propose a supervised and interactive image segmentation algorithm. In our approach, we construct a new graph model which consists of a super-pixel layer and a high order layer. The super-pixel layer is composed by over-segmentation regions called superpixels and the high-order layer is generated by combining edge detection and these over-segmentation regions. Then we construct a graph model and use a random walk algorithm to find the maximum probability label value for each superpixel. The proposed method shows very satisfactory results for some natural images and compares to some conventional methods.

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