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When working with three-dimensional data, choice of representation is key. We explore voxel-based models, and present evidence for the viability of voxellated representations in applications including shape modeling and object…

计算机视觉与模式识别 · 计算机科学 2016-08-17 Andrew Brock , Theodore Lim , J. M. Ritchie , Nick Weston

We introduce the first active learning (AL) model for high-accuracy instance segmentation of moveable parts from RGB images of real indoor scenes. Specifically, our goal is to obtain fully validated segmentation results by humans while…

计算机视觉与模式识别 · 计算机科学 2024-07-09 Ruiqi Wang , Akshay Gadi Patil , Fenggen Yu , Hao Zhang

The machine learning community has been overwhelmed by a plethora of deep learning based approaches. Many challenging computer vision tasks such as detection, localization, recognition and segmentation of objects in unconstrained…

计算机视觉与模式识别 · 计算机科学 2019-07-16 Swarnendu Ghosh , Nibaran Das , Ishita Das , Ujjwal Maulik

The recent advancements in point cloud learning have enabled intelligent vehicles and robots to comprehend 3D environments better. However, processing large-scale 3D scenes remains a challenging problem, such that efficient downsampling…

计算机视觉与模式识别 · 计算机科学 2024-08-06 Hongcheng Yang , Dingkang Liang , Dingyuan Zhang , Zhe Liu , Zhikang Zou , Xingyu Jiang , Yingying Zhu

The need for labour intensive pixel-wise annotation is a major limitation of many fully supervised learning methods for segmenting bioimages that can contain numerous object instances with thin separations. In this paper, we introduce a…

计算机视觉与模式识别 · 计算机科学 2020-09-11 Rihuan Ke , Aurélie Bugeau , Nicolas Papadakis , Peter Schuetz , Carola-Bibiane Schönlieb

Accurate medical image segmentation is essential for diagnosis, surgical planning and many other applications. Convolutional Neural Networks (CNNs) have become the state-of-the-art automatic segmentation methods. However, fully automatic…

We present a novel approach to automatically segment magnetic resonance (MR) images of the human brain into anatomical regions. Our methodology is based on a deep artificial neural network that assigns each voxel in an MR image of the brain…

计算机视觉与模式识别 · 计算机科学 2015-06-26 Alexandre de Brebisson , Giovanni Montana

Automated segmentation of individual leaves of a plant in an image is a prerequisite to measure more complex phenotypic traits in high-throughput phenotyping. Applying state-of-the-art machine learning approaches to tackle leaf instance…

计算机视觉与模式识别 · 计算机科学 2019-03-25 Daniel Ward , Peyman Moghadam , Nicolas Hudson

Accurate gross tumor volume segmentation on multi-modal medical data is critical for radiotherapy planning in nasopharyngeal carcinoma and glioblastoma. Recent advances in deep neural networks have brought promising results in medical image…

计算机视觉与模式识别 · 计算机科学 2025-08-29 Jingyun Yang , Guoqing Zhang , Jingge Wang , Yang Li

This paper presents a learning-based, lossless compression method for static point cloud geometry, based on context-adaptive arithmetic coding. Unlike most existing methods working in the octree domain, our encoder operates in a hybrid…

图像与视频处理 · 电气工程与系统科学 2021-04-21 Dat Thanh Nguyen , Maurice Quach , Giuseppe Valenzise , Pierre Duhamel

Recently, deep convolutional neural networks have achieved great success for medical image segmentation. However, unlike segmentation of natural images, most medical images such as MRI and CT are volumetric data. In order to make full use…

图像与视频处理 · 电气工程与系统科学 2022-02-08 Yichi Zhang , Qingcheng Liao , Le Ding , Jicong Zhang

The increasing availability of digital 3D environments, whether through image-based 3D reconstruction, generation, or scans obtained by robots, is driving innovation across various applications. These come with a significant demand for 3D…

计算机视觉与模式识别 · 计算机科学 2025-04-16 Andrea Simonelli , Norman Müller , Peter Kontschieder

Like other applications in computer vision, medical image segmentation has been most successfully addressed using deep learning models that rely on the convolution operation as their main building block. Convolutions enjoy important…

图像与视频处理 · 电气工程与系统科学 2022-04-05 Davood Karimi , Serge Vasylechko , Ali Gholipour

Convolutional neural networks (CNNs) allow for parameter sharing and translational equivariance by using convolutional kernels in their linear layers. By restricting these kernels to be SO(3)-steerable, CNNs can further improve parameter…

图像与视频处理 · 电气工程与系统科学 2024-05-20 Ivan Diaz , Mario Geiger , Richard Iain McKinley

Semantic segmentation is a crucial task in biomedical image processing, which recent breakthroughs in deep learning have allowed to improve. However, deep learning methods in general are not yet widely used in practice since they require…

计算机视觉与模式识别 · 计算机科学 2019-07-12 Melanie Lubrano di Scandalea , Christian S. Perone , Mathieu Boudreau , Julien Cohen-Adad

We study the task of embodied visual active learning, where an agent is set to explore a 3d environment with the goal to acquire visual scene understanding by actively selecting views for which to request annotation. While accurate on some…

计算机视觉与模式识别 · 计算机科学 2020-12-18 David Nilsson , Aleksis Pirinen , Erik Gärtner , Cristian Sminchisescu

We propose a novel approach for automatic extraction (instance segmentation) of fibers from low resolution 3D X-ray computed tomography scans of short glass fiber reinforced polymers. We have designed a 3D instance segmentation architecture…

计算机视觉与模式识别 · 计算机科学 2019-01-07 Tomasz Konopczyński , Thorben Kröger , Lei Zheng , Jürgen Hesser

Segmentation of additive manufacturing (AM) defects in X-ray Computed Tomography (XCT) images is challenging, due to the poor contrast, small sizes and variation in appearance of defects. Automatic segmentation can, however, provide quality…

图像与视频处理 · 电气工程与系统科学 2021-01-25 Vivian Wen Hui Wong , Max Ferguson , Kincho H. Law , Yung-Tsun Tina Lee , Paul Witherell

Automated detection and segmentation of pulmonary nodules on lung computed tomography (CT) scans can facilitate early lung cancer diagnosis. Existing supervised approaches for automated nodule segmentation on CT scans require voxel-based…

计算机视觉与模式识别 · 计算机科学 2018-02-26 Xinyang Feng , Jie Yang , Andrew F. Laine , Elsa D. Angelini

State-of-the-art methods for semantic segmentation are based on deep neural networks trained on large-scale labeled datasets. Acquiring such datasets would incur large annotation costs, especially for dense pixel-level prediction tasks like…

计算机视觉与模式识别 · 计算机科学 2025-07-24 Lile Cai , Xun Xu , Lining Zhang , Chuan-Sheng Foo