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For compression fracture detection and evaluation, an automatic X-ray image segmentation technique that combines deep-learning and level-set methods is proposed. Automatic segmentation is much more difficult for X-ray images than for CT or…

医学物理 · 物理学 2019-04-17 Kang Cheol Kim , Hyun Cheol Cho , Tae Jun Jang , Jong Mun Choi , Jin Keun Seo

We propose and analyze a constrained level-set method for semi-automatic image segmentation. Our level-set model with constraints on the level-set function enables us to specify which parts of the image lie inside respectively outside the…

数值分析 · 数学 2014-12-11 Vladimír Klement , Tomáš Oberhuber , Daniel Ševčovič

We propose and analyze a constrained level-set method for semi-automatic image segmentation. Our level-set model with constraints on the level-set function enables us to specify which parts of the image lie inside respectively outside the…

数值分析 · 数学 2015-01-07 Vladimír Klement , Tomáš Oberhuber , Daniel Ševčovič

The $k$-segmentation of a video stream is used to partition it into $k$ piecewise-linear segments, so that each linear segment has a meaningful interpretation. Such segmentation may be used to summarize large videos using a small set of…

计算机视觉与模式识别 · 计算机科学 2020-09-14 Sabarish Vadarevu , Vijay Karamcheti

Optical coherence tomography (OCT) is used for non-invasive diagnosis of diabetic macular edema assessing the retinal layers. In this paper, we propose a new fully convolutional deep architecture, termed ReLayNet, for end-to-end…

计算机视觉与模式识别 · 计算机科学 2017-07-10 Abhijit Guha Roy , Sailesh Conjeti , Sri Phani Krishna Karri , Debdoot Sheet , Amin Katouzian , Christian Wachinger , Nassir Navab

Anatomical segmentation of organs in ultrasound images is essential to many clinical applications, particularly for diagnosis and monitoring. Existing deep neural networks require a large amount of labeled data for training in order to…

图像与视频处理 · 电气工程与系统科学 2023-08-01 Yordanka Velikova , Mohammad Farid Azampour , Walter Simson , Vanessa Gonzalez Duque , Nassir Navab

To improve the efficiency of surgical trajectory segmentation for robot learning in robot-assisted minimally invasive surgery, this paper presents a fast unsupervised method using video and kinematic data, followed by a promoting procedure…

计算机视觉与模式识别 · 计算机科学 2018-10-02 Zhenzhou Shao , Hongfa Zhao , Jiexin Xie , Ying Qu , Yong Guan , Jindong Tan

Current methods aggregate multi-level features or introduce edge and skeleton to get more refined saliency maps. However, little attention is paid to how to obtain the complete salient object in cluttered background, where the targets are…

计算机视觉与模式识别 · 计算机科学 2023-01-19 Ge Zhu , Jinbao Li , Yahong Guo

Classic computer vision algorithms, instance segmentation, and semantic segmentation can not provide a holistic understanding of the surroundings for the visually impaired. In this paper, we utilize panoptic segmentation to assist the…

计算机视觉与模式识别 · 计算机科学 2021-03-09 Wei Mao , Jiaming Zhang , Kailun Yang , Rainer Stiefelhagen

In this work, we propose a special cascade network for image segmentation, which is based on the U-Net networks as building blocks and the idea of the iterative refinement. The model was mainly applied to achieve higher recognition quality…

计算机视觉与模式识别 · 计算机科学 2018-11-22 Artem Sevastopolsky , Stepan Drapak , Konstantin Kiselev , Blake M. Snyder , Jeremy D. Keenan , Anastasia Georgievskaya

In this paper, we describe a graph-based algorithm that uses the features obtained by a self-supervised transformer to detect and segment salient objects in images and videos. With this approach, the image patches that compose an image or…

计算机视觉与模式识别 · 计算机科学 2023-12-06 Yangtao Wang , Xi Shen , Yuan Yuan , Yuming Du , Maomao Li , Shell Xu Hu , James L Crowley , Dominique Vaufreydaz

In the Reverse Engineering and Hardware Assurance domain, a majority of the data acquisition is done through electron microscopy techniques such as Scanning Electron Microscopy (SEM). However, unlike its counterparts in optical imaging,…

图像与视频处理 · 电气工程与系统科学 2020-04-30 Ronald Wilson , Navid Asadizanjani , Domenic Forte , Damon L. Woodard

A fully automatic technique for segmenting the liver and localizing its unhealthy tissues is a convenient tool in order to diagnose hepatic diseases and assess the response to the according treatments. In this work we propose a method to…

计算机视觉与模式识别 · 计算机科学 2017-12-01 Miriam Bellver , Kevis-Kokitsi Maninis , Jordi Pont-Tuset , Xavier Giro-i-Nieto , Jordi Torres , Luc Van Gool

Image segmentation is widely used in a variety of computer vision tasks, such as object localization and recognition, boundary detection, and medical imaging. This thesis proposes deep learning architectures to improve automatic object…

图像与视频处理 · 电气工程与系统科学 2019-09-24 Debleena Sengupta

The appearance and structure of blood vessels in retinal images have an important role in diagnosis of diseases. This paper proposes a method for automatic retinal vessel segmentation. In this work, a novel preprocessing based on local…

计算机视觉与模式识别 · 计算机科学 2013-12-31 Saeid Fazli , Sevin Samadi

Skin lesions segmentation is an important step in the process of automated diagnosis of the skin melanoma. However, the accuracy of segmenting melanomas skin lesions is quite a challenging task due to less data for training, irregular…

图像与视频处理 · 电气工程与系统科学 2020-12-29 Sabari Nathan , Priya Kansal

Accurate diagnosis of glaucoma is challenging, as early-stage changes are subtle and often lack clear structural or appearance cues. Most existing approaches rely on a single modality, such as fundus or optical coherence tomography (OCT),…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Zhiwei Wang , Yuxing Li , Meilu Zhu , Defeng He , Edmund Y. Lam

Early detection of melanoma is difficult for the human eye but a crucial step towards reducing its death rate. Computerized detection of these melanoma and other skin lesions is necessary. The central research question in this paper is "How…

图像与视频处理 · 电气工程与系统科学 2019-10-24 Beril Sirmacek , Max Kivits

This paper investigates the multiplicative spread spectrum watermarking method for the image. The information bit is spreaded into middle-frequency Discrete Cosine Transform (DCT) coefficients of each block of an image using a generated…

多媒体 · 计算机科学 2017-05-03 Nematollah Zarmehi , Mohammad Reza Aref

The theory of (tight) wavelet frames has been extensively studied in the past twenty years and they are currently widely used for image restoration and other image processing and analysis problems. The success of wavelet frame based models,…

计算机视觉与模式识别 · 计算机科学 2011-10-31 Yong Zhang , Bin Dong , Zhaosong Lu