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Deep learning based methods provide efficient solutions to medical image registration, including the challenging problem of diffeomorphic image registration. However, most methods register normal image pairs, facing difficulty handling…

图像与视频处理 · 电气工程与系统科学 2023-03-17 Ankita Joshi , Yi Hong

Cortical surface analysis has gained increased prominence, given its potential implications for neurological and developmental disorders. Traditional vision diffusion models, while effective in generating natural images, present limitations…

图像与视频处理 · 电气工程与系统科学 2024-02-08 Zhenshan Xie , Simon Dahan , Logan Z. J. Williams , M. Jorge Cardoso , Emma C. Robinson

Neuromorphic hardware strives to emulate brain-like neural networks and thus holds the promise for scalable, low-power information processing on temporal data streams. Yet, to solve real-world problems, these networks need to be trained.…

神经与进化计算 · 计算机科学 2020-10-23 Friedemann Zenke , Emre O. Neftci

Convolutional neural network (CNN) has led to significant progress in object detection. In order to detect the objects in various sizes, the object detectors often exploit the hierarchy of the multi-scale feature maps called feature…

计算机视觉与模式识别 · 计算机科学 2020-01-22 Jin Hyeok Yoo , Dongsuk Kum , Jun Won Choi

Deep learning-based methods have recently demonstrated promising results in deformable image registration for a wide range of medical image analysis tasks. However, existing deep learning-based methods are usually limited to small…

图像与视频处理 · 电气工程与系统科学 2020-07-01 Tony C. W. Mok , Albert C. S. Chung

In the current era, biometric based access control is becoming more popular due to its simplicity and ease to use by the users. It reduces the manual work of identity recognition and facilitates the automatic processing. The face is one of…

计算机视觉与模式识别 · 计算机科学 2019-03-28 Chaitanya Nagpal , Shiv Ram Dubey

RGB-D semantic segmentation has attracted increasing attention over the past few years. Existing methods mostly employ homogeneous convolution operators to consume the RGB and depth features, ignoring their intrinsic differences. In fact,…

计算机视觉与模式识别 · 计算机科学 2021-08-25 Jinming Cao , Hanchao Leng , Dani Lischinski , Danny Cohen-Or , Changhe Tu , Yangyan Li

In this paper, we summarize the methods and experimental results we proposed for Task 2 in the learn2reg 2024 Challenge. This task focuses on unsupervised registration of anatomical structures in brain MRI images between different patients.…

计算机视觉与模式识别 · 计算机科学 2024-09-05 Yuxi Zhang , Xiang Chen , Jiazheng Wang , Min Liu , Yaonan Wang , Dongdong Liu , Renjiu Hu , Hang Zhang

Full-waveform inversion problems are usually formulated as optimization problems, where the forward-wave propagation operator $f$ maps the subsurface velocity structures to seismic signals. The existing computational methods for solving…

信号处理 · 电气工程与系统科学 2020-01-07 Yue Wu , Youzuo Lin

Reconstructing soft tissues from stereo endoscope videos is an essential prerequisite for many medical applications. Previous methods struggle to produce high-quality geometry and appearance due to their inadequate representations of 3D…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Ruyi Zha , Xuelian Cheng , Hongdong Li , Mehrtash Harandi , Zongyuan Ge

We propose a spherical kernel for efficient graph convolution of 3D point clouds. Our metric-based kernels systematically quantize the local 3D space to identify distinctive geometric relationships in the data. Similar to the regular grid…

计算机视觉与模式识别 · 计算机科学 2020-03-24 Huan Lei , Naveed Akhtar , Ajmal Mian

We propose UNSURF, a novel uncertainty measure for cortical surface reconstruction of clinical brain MRI scans of any orientation, resolution, and contrast. It relies on the discrepancy between predicted voxel-wise signed distance functions…

图像与视频处理 · 电气工程与系统科学 2025-07-08 Raghav Mehta , Karthik Gopinath , Ben Glocker , Juan Eugenio Iglesias

We propose a novel framework for the statistical analysis of genus-zero 4D surfaces, i.e., 3D surfaces that deform and evolve over time. This problem is particularly challenging due to the arbitrary parameterizations of these surfaces and…

计算机视觉与模式识别 · 计算机科学 2025-03-06 Awais Nizamani , Hamid Laga , Guanjin Wang , Farid Boussaid , Mohammed Bennamoun , Anuj Srivastava

Dynamic computed tomography (CT) reconstruction faces significant challenges in addressing motion artifacts, particularly for nonperiodic rapid movements such as cardiac imaging with fast heart rates. Traditional methods struggle with the…

计算机视觉与模式识别 · 计算机科学 2025-05-07 Muge Du , Zhuozhao Zheng , Wenying Wang , Guotao Quan , Wuliang Shi , Le Shen , Li Zhang , Liang Li , Yinong Liu , Yuxiang Xing

Deformable image registration poses a challenging problem where, unlike most deep learning tasks, a complex relationship between multiple coordinate systems has to be considered. Although data-driven methods have shown promising…

计算机视觉与模式识别 · 计算机科学 2025-03-11 Vasiliki Sideri-Lampretsa , Nil Stolt-Ansó , Huaqi Qiu , Julian McGinnis , Wenke Karbole , Martin Menten , Daniel Rueckert

The task of automatically segmenting 3-D surfaces representing boundaries of objects is important for quantitative analysis of volumetric images, and plays a vital role in biomedical image analysis. Recently, graph-based methods with a…

计算机视觉与模式识别 · 计算机科学 2018-01-10 Abhay Shah , Michael Abramoff , Xiaodong Wu

Medical image registration and segmentation are critical tasks for several clinical procedures. Manual realisation of those tasks is time-consuming and the quality is highly dependent on the level of expertise of the physician. To mitigate…

计算机视觉与模式识别 · 计算机科学 2022-07-22 Lihao Liu , Zhening Huang , Pietro Liò , Carola-Bibiane Schönlieb , Angelica I. Aviles-Rivero

We present a novel method for reconstructing a 3D implicit surface from a large-scale, sparse, and noisy point cloud. Our approach builds upon the recently introduced Neural Kernel Fields (NKF) representation. It enjoys similar…

计算机视觉与模式识别 · 计算机科学 2023-06-12 Jiahui Huang , Zan Gojcic , Matan Atzmon , Or Litany , Sanja Fidler , Francis Williams

The generalization ability of Convolutional neural networks (CNNs) for biometrics drops greatly due to the adverse effects of various occlusions. To this end, we propose a novel unified framework integrated the merits of both CNNs and…

计算机视觉与模式识别 · 计算机科学 2020-09-15 Min Ren , Yunlong Wang , Zhenan Sun , Tieniu Tan

Sub-cortical brain structure segmentation in Magnetic Resonance Images (MRI) has attracted the interest of the research community for a long time because morphological changes in these structures are related to different neurodegenerative…

计算机视觉与模式识别 · 计算机科学 2018-11-15 Kaisar Kushibar , Sergi Valverde , Sandra Gonzalez-Villa , Jose Bernal , Mariano Cabezas , Arnau Oliver , Xavier Llado