基于优化的极限学习机和深度层次的RGB-D显著检测

刘政怡; 徐天泽

doi:10.11999/JEIT180826

基于优化的极限学习机和深度层次的RGB-D显著检测

doi: 10.11999/JEIT180826

刘政怡^,,
徐天泽

安徽大学计算机科学与技术学院合肥 230601

基金项目: 安徽省自然科学基金(1908085MF182)

详细信息

作者简介:
刘政怡：女，1978年生，副教授，研究方向为计算机视觉

徐天泽：男，1994年生，硕士生，研究方向为计算机视觉

通讯作者:
刘政怡　22927463@qq.com

中图分类号: TP391
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- 被引次数: 0
出版历程
- 收稿日期: 2018-08-22
- 修回日期: 2019-05-15
- 网络出版日期: 2019-06-03
- 刊出日期: 2019-09-10

RGB-D Saliency Detection Based on Optimized ELM and Depth Level

Zhengyi LIU^,,
Tianze XU

College of Computer Science and Technology, Anhui University, Hefei 230601, China

Funds: The Natural Science Foundation of Anhui Province (1908085MF182)

摘要

摘要: 目前，相当多的显著目标检测方法均聚焦于2D的图像上，而RGB-D图像所需要的显著检测方法与单纯的2D图像相去甚远，这就需要新的适用于RGB-D的显著检测方法。该文在经典的RGB显著检测方法，即极限学习机的应用的基础上，提出融合了特征提取、前景增强、深度层次检测等多种思路的新的RGB-D显著性检测方法。该文的方法是：第一，运用特征提取的方法，提取RGB图4个超像素尺度的4096维特征；第二，依据特征提取中产生的4个尺度的超像素数量，分别提取RGB图的RGB, LAB, LBP特征以及深度图的LBE特征；第三，根据LBE和暗通道特征两种特征求出粗显著图，并在4个尺度的遍历中不断强化前景、削弱背景；第四，根据粗显著图选取前景与背景种子，放入极限学习机中进行分类，得到第1阶段显著图；第五，运用深度层次检测、图割等方法对第1阶段显著图进行再次优化，得到第2阶段显著图，即最终显著图。
- RGB-D显著目标检测 /
- 极限学习机 /
- 流程优化 /
- 多特征 /
- 深度层次优化
Abstract: Currently, many saliency-detection methods focus on 2D-image. But, these methods cannot be applied in RGB-D image. Based on this situation, new methods which are suitable for RGB-D image are needed. This paper presents a novel algorithm based on Extreme Learning Machine(ELM), feature-extraction and depth-detection. Firstly, feature-extraction is used for getting a feature, which contains 4-scale superpixels and 4096 dimensions. Secondly, according to the 4-sacle superpixels, the RGB, LAB and LBP feature of RGB image are computed, and LBE feature of depth image. Thirdly, weak salient map with LBE and dark-channel features are computed, and the foreground objects is strengthened in every circle. Fourthly, according to weak salient map, both foreground seeds and background seeds are chosen, and then, put these seeds into ELM to compute the first stage salient map. Finally, depth-detection and graph-cut are used for optimizing the first stage salient map and getting the second stage salient map.
- RGB-D saliency detection /
- Extreme Learning Machine(ELM) /
- Process optimization /
- Multiple features /
- Depth level optimization

HTML全文

图 1 本文算法程序流程图

下载: 全尺寸图片幻灯片

图 2 LBE部分显著图与本文对应显著图对比

下载: 全尺寸图片幻灯片

图 3 有无流程优化的P-R曲线对比

下载: 全尺寸图片幻灯片

图 4 部分图片不同方法显著图像对比

下载: 全尺寸图片幻灯片

图 5 各种方法的P-R曲线对比

下载: 全尺寸图片幻灯片

表 1 各算法F-measure值

算法本文ELM ACSD MGMR GP LBE DES

F值 0.7526 0.5857 0.6464 0.7220 0.7408 0.2728

下载: 导出CSV

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