Title
Construction of all-in-focus images assisted by depth sensing.
Abstract
Multi-focus image fusion is a technique for obtaining an all-in-focus image in which all objects are in focus to extend the limited depth of field (DoF) of an imaging system. Different from traditional RGB-based methods, this paper presents a new multi-focus image fusion method assisted by depth sensing. In this work, a depth sensor is used together with a colour camera to capture images of a scene. A graph-based segmentation algorithm is used to segment the depth map from the depth sensor, and the segmented regions are used to guide a focus algorithm to locate in-focus image blocks from among multi-focus source images to construct the reference all-in-focus image. Five test scenes and six evaluation metrics were used to compare the proposed method and representative state-of-the-art algorithms. Experimental results quantitatively demonstrate that this method outperforms existing methods in both speed and quality (in terms of comprehensive fusion metrics). The generated images can potentially be used as reference all-in-focus images.
Year
DOI
Venue
2018
10.3390/s19061409
SENSORS
Keywords
Field
DocType
all-in-focus,image fusion,depth sensing
Computer vision,Graph,Image fusion,Segmentation,Fusion,Electronic engineering,RGB color model,Artificial intelligence,Engineering,Depth map,Depth of field
Journal
Volume
Issue
ISSN
19
6
1424-8220
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Hang Liu183590.79
Hengyu Li21613.45
Jun Luo39825.37
Shaorong Xie411238.53
Yu Sun541869.89