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The majority of medical images, especially those that resemble cells, have similar characteristics. These images, which occur in a variety of shapes, often show abnormalities in the organ or cell region. The convolution operation possesses…

In this paper we present a methodology that uses convolutional neural networks (CNNs) for segmentation by iteratively growing predicted mask regions in each coordinate direction. The CNN is used to predict class probability scores in a…

图像与视频处理 · 电气工程与系统科学 2020-09-25 John Lagergren , Erica Rutter , Kevin Flores

Recently, convolutional neural networks (CNNs) have achieved excellent performances in many computer vision tasks. Specifically, for hyperspectral images (HSIs) classification, CNNs often require very complex structure due to the high…

计算机视觉与模式识别 · 计算机科学 2019-03-26 Haitao Zhang , Lingguo Meng , Xian Wei , Xiaoliang Tang , Xuan Tang , Xingping Wang , Bo Jin , Wei Yao

We address the key question of how object part representations can be found from the internal states of CNNs that are trained for high-level tasks, such as object classification. This work provides a new unsupervised method to learn…

机器学习 · 计算机科学 2016-11-15 Jianyu Wang , Zhishuai Zhang , Cihang Xie , Vittal Premachandran , Alan Yuille

We propose a 3D convolutional neural network to simultaneously segment and detect cell nuclei in confocal microscopy images. Mirroring the co-dependency of these tasks, our proposed model consists of two serial components: the first part…

图像与视频处理 · 电气工程与系统科学 2018-09-07 Sundaresh Ram , Vicky T. Nguyen , Kirsten H. Limesand , Mert R. Sabuncu

Viewpoint estimation from 2D rendered images is helpful in understanding how users select viewpoints for volume visualization and guiding users to select better viewpoints based on previous visualizations. In this paper, we propose a…

图形学 · 计算机科学 2019-02-04 Neng Shi , Yubo Tao

In this paper, we propose a method for image-set classification based on convex cone models, focusing on the effectiveness of convolutional neural network (CNN) features as inputs. CNN features have non-negative values when using the…

计算机视觉与模式识别 · 计算机科学 2018-06-01 Naoya Sogi , Taku Nakayama , Kazuhiro Fukui

Recent advancements in neutron and X-ray sources, instrumentation and data collection modes have significantly increased the experimental data size (which could easily contain 10$^{8}$ -- 10$^{10}$ data points), so that conventional…

计算机视觉与模式识别 · 计算机科学 2018-09-25 Yawei Hui , Yaohua Liu

We train three convolutional neural networks (CNNs) to classify galaxies with Galaxy Zoo 2 dataset and extract the activations from the last fully connected layer or the last average pooling layer of CNNs to study the high-dimensional…

星系天体物理 · 物理学 2018-07-17 Jia-Ming Dai , Jizhou Tong

We describe a novel method for the application of Convolutional Neural Networks (CNNs) to fields defined on the sphere, using the HEALPix tessellation scheme. Specifically, We have developed a pixel-based approach to implement convolutional…

天体物理仪器与方法 · 物理学 2019-08-21 Nicoletta Krachmalnicoff , Maurizio Tomasi

Many state-of-the art visualization techniques must be tailored to the specific type of dataset, its modality (CT, MRI, etc.), the recorded object or anatomical region (head, spine, abdomen, etc.) and other parameters related to the data…

图形学 · 计算机科学 2009-06-15 Dženan Zukić , Christof Rezk-Salama , Andreas Kolb

This work presents and analyzes three convolutional neural network (CNN) models for efficient pixelwise classification of images. When using convolutional neural networks to classify single pixels in patches of a whole image, a lot of…

计算机视觉与模式识别 · 计算机科学 2015-09-14 Fabian Tschopp

Sketch-based modeling strives to bring the ease and immediacy of drawing to the 3D world. However, while drawings are easy for humans to create, they are very challenging for computers to interpret due to their sparsity and ambiguity. We…

图形学 · 计算机科学 2018-06-20 Johanna Delanoy , Mathieu Aubry , Phillip Isola , Alexei A. Efros , Adrien Bousseau

We propose a general framework called Network Dissection for quantifying the interpretability of latent representations of CNNs by evaluating the alignment between individual hidden units and a set of semantic concepts. Given any CNN model,…

计算机视觉与模式识别 · 计算机科学 2017-04-20 David Bau , Bolei Zhou , Aditya Khosla , Aude Oliva , Antonio Torralba

Computed tomography (CT) is increasingly being used for cancer screening, such as early detection of lung cancer. However, CT studies have varying pixel spacing due to differences in acquisition parameters. Thick slice CTs have lower…

计算机视觉与模式识别 · 计算机科学 2018-07-19 Meng Li , Shiwen Shen , Wen Gao , William Hsu , Jason Cong

Cosmological simulations are a powerful tool to advance our understanding of galaxy formation and many simulations model key properties of real galaxies. A question that naturally arises for such simulations in light of high-quality…

星系天体物理 · 物理学 2025-09-10 Lingyi Zhou , Stefan T. Radev , William H. Oliver , Aura Obreja , Zehao Jin , Tobias Buck

We train deep learning models on thousands of galaxy catalogues from the state-of-the-art hydrodynamic simulations of the CAMELS project to perform regression and inference. We employ Graph Neural Networks (GNNs), architectures designed to…

宇宙学与河外天体物理 · 物理学 2023-02-10 Pablo Villanueva-Domingo , Francisco Villaescusa-Navarro

When using Convolutional Neural Networks (CNNs) for segmentation of organs and lesions in medical images, the conventional approach is to work with inputs and outputs either as single slice (2D) or whole volumes (3D). One common…

图像与视频处理 · 电气工程与系统科学 2020-11-17 Minh H. Vu , Guus Grimbergen , Tufve Nyholm , Tommy Löfstedt

Deep convolutional neural networks are powerful tools for learning visual representations from images. However, designing efficient deep architectures to analyse volumetric medical images remains challenging. This work investigates…

计算机视觉与模式识别 · 计算机科学 2017-07-10 Wenqi Li , Guotai Wang , Lucas Fidon , Sebastien Ourselin , M. Jorge Cardoso , Tom Vercauteren

Weak Lensing (WL) surveys are reaching unprecedented depths, enabling the investigation of very small angular scales. At these scales, nonlinear gravitational effects lead to higher-order correlations making the matter distribution highly…

宇宙学与河外天体物理 · 物理学 2025-05-01 Divij Sharma , Biwei Dai , Uros Seljak