A new automatic approach to seed image analysis: From acquisition to segmentation
Escola Agrícola de Jundiaí (EAJ), Universidade Federal do Rio Grande do Norte (UFRN)(南大河州联邦大学);Dipartimento di Matematica e Informatica, Università degli Studi di Cagliari(卡利亚里大学);Hortus Botanicus Karalitanus (HBK), Università degli Studi di Cagliari(卡利亚里大学)
A. M. P. G. Vale, M. Ucchesu, C. Di Ruberto, A. Loddo, J. M. Soares, G. Bacchetta
Image Analysis offers a new tool for classifying vascular plant species based on the morphological and colorimetric features of the seeds, and has made significant contributions in systematic studies. However, in order to extract the morphological and colorimetric features, it is necessary to segment the image containing the samples to be analysed. This stage represents one of the most challenging steps in image processing, as it is difficult to separate uniform and homogeneous objects from the background. In this paper, we present a new, open source plugin for the automatic segmentation of an image of a seed sample. This plugin was written in Java to allow it to work with ImageJ open source software. The new plugin was tested on a total of 3,386 seed samples from 120 species belonging to the Fabaceae family. Digital images were acquired using a flatbed scanner. In order to test the efficacy of this approach in terms of identifying the edges of objects and separating them from the background, each sample was scanned using four different hues of blue for the background, and a total of 480 digital images were elaborated. The performance of the new plugin was compared with a method based on double image acquisition (with a black and white background) using the same seed samples, in which images were manually segmented using the Core ImageJ plugin. The results showed that the new plugin was able to segment all of the digital images without generating any object detection errors. In addition, the new plugin was able to segment images within an average of 0.02 s, while the average time for execution with the manual method was 63 s. This new open source plugin is proven to be able to work on a single image, and to be highly efficient in terms of time and segmentation when working with large numbers of images and a wide diversity of shapes.
Robust Seed Mask Generation for Interactive Image Segmentation
Friedrich-Alexander University Erlangen-Nürnberg (FAU)(埃尔朗根-纽伦堡大学);Siemens Healthcare GmbH(西门子医疗有限公司);Erlangen Graduate School in Advanced Optical Technologies (SAOT)(埃尔朗根先进光学技术研究生院)
Response monitoring of breast cancer on DCE-MRI using convolutional neural network-generated seed points and constrained volume growing
Image Sciences Institute, University Medical Center Utrecht(乌得勒支大学医学中心影像科学研究所);Department of Radiology, Antoni van Leeuwenhoek Hospital - The Netherlands Cancer Institute(荷兰癌症研究所安东尼·范·列文虎克医院放射科)
Comparison of different automatic solutions for resection cavity segmentation in postoperative MRI volumes including longitudinal acquisitions
Fraunhofer MEVIS: Institute for Digital Medicine(弗劳恩霍夫数字医学MEVIS研究所);icometrix(icometrix公司);Universitätsklinikum Knappschaftskrankenhaus Bochum(波鸿克纳普沙夫特医院大学诊所)
Automatic Large-Scale Data Acquisition via Crowdsourcing for Crosswalk Classification: A Deep Learning Approach
正确识别人行横道是驾驶活动和移动自主性的一项重要任务。多年来,在文献中已经提出了许多人行横道分类、检测和定位系统。这些系统使用不同的视角来解决人行横道分类问题:卫星图像,驾驶舱视图(从汽车顶部或挡风玻璃后面)和行人视角。文献中的大多数作品都是使用小型和局部数据集(即多样性较低的数据集)进行设计和评估的。扩展到大型数据集对注释过程提出了挑战。此外,在文献中仍然需要进行跨数据库实验,因为通常很难在最终应用的相同地点和条件下收集数据。本文提出了一种基于深度学习的人行横道分类系统。为此,开发了OpenStreetMap和Google Street View等众包平台,通过自动获取和注释大型数据库来实现自动训练。此外,这项工作提出了使用全自动数据采集和注释训练的模型与部分注释的模型的比较研究。实验中还包括跨数据库实验,以表明所提出的方法能够用于现实世界的应用程序。我们的研究结果表明,在全自动数据库上训练的模型实现了较高的整体准确率(94.12%),并且通过手动注释数据库的特定部分可以实现统计上的显著改善(达到96.30%)。最后,跨数据库的实验结果表明,这两个模型是强大的图像和场景的许多变化,表现出一致的行为。
Towards the Automatic Segmentation, Modeling and Meshing of the Aortic Vessel Tree from Multicenter Acquisitions: An Overview of the SEG.A. 2023 Segmentation of the Aorta Challenge
Institute for Artificial Intelligence (AI) in Medicine (IKIM)(人工智能医学研究所);University Medicine Essen (AöR)(埃森大学医学部);Research Center for Frontier Fundamental Studies(前沿基础研究研究中心);ZhejiangLab(浙江实验室);Institute of Computer Graphics and Vision (ICG)(计算机图形与视觉研究所);Graz University of Technology(格拉茨技术大学);Institute of Mechanics (IFM)(力学研究所);Zhejiang Laboratory of Philosophy and Social Sciences - Laboratory of Intelligent Society and Governance(哲学社会科学浙江实验室-智能社会与治理实验室);School of Electrical and Electronic Engineering(电子工程学院);Artificial Intelligence and Robotics Institute(人工智能与机器人研究所);Korea Institute of Science and Technology(韩国科学技术院);Department of Artificial Intelligence(人工智能系);Yonsei University College of Dentistry(延世大学牙科学院);Yonsei University(延世大学);Yonsei University College(延世大学);Department of Radiology and Research Institute of Radiological Science and Center for Clinical Imaging Data Science(放射科与放射科学研究所及临床影像数据科学中心)
Automatic Plane Adjustment of Orthopedic Intra-operative Flat Panel Detector CT-Volumes
Friedrich-Alexander-Universität Erlangen-Nürnberg(埃尔朗根-纽伦堡弗里德里希-亚历山大大学);Siemens Healthcare GmbH(西门子医疗有限公司);BG Trauma Center(BG创伤中心);German Cancer Research Center(德国癌症研究中心)