Fast autofocusing of recorded planes by salient feature region for coherent diffraction imaging

Author:

Zhou Xuyang1ORCID,Li Ziyang1ORCID,Qiao Ziling1ORCID,Wang Yiran1ORCID,Huang Guancheng1ORCID,Chi Dazhao2,Li Xiaomei3,Liu Shutian1ORCID,Liu Zhengjun1ORCID

Affiliation:

1. School of Physics Harbin Institute of Technology Harbin China

2. State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin China

3. Department of Pathology Harbin Medical University Cancer Hospital Harbin China

Abstract

AbstractIn multi‐distance coherent diffraction imaging, the task of distance calculation for multi‐diffraction images is cumbersome. The information features are hard‐to‐extract and the region of interest extraction algorithms are difficult to be adopted. A universal salient feature region selection algorithm by using the area with the highest density of corners is proposed to extract the most representative feature region. In addition, equally spaced recording modes and mismatched diffraction distances will result in system noise and destroy image quality. The polydirectional maximum gradient is offered as a sharpness criterion to weigh a quantitative feature for the final pattern. A fast, sensitive, and high‐accuracy autofocusing and sample reconstruction can be achieved using only a small number of images while ensuring that morphological properties and quantification of the reconstructions are not compromised. The proposed method is promising for biological and medical dynamic observations for computational imaging systems.

Funder

National Natural Science Foundation of China

Publisher

Wiley

Subject

General Physics and Astronomy,General Engineering,General Biochemistry, Genetics and Molecular Biology,General Materials Science,General Chemistry

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3