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While backpropagation--reverse-mode automatic differentiation--has been extraordinarily successful in deep learning, it requires two passes (forward and backward) through the neural network and the storage of intermediate activations.…

机器学习 · 计算机科学 2025-11-06 Daniel Wang , Evan Markou , Dylan Campbell

Automatic segmentation of the bronchial tree from CT imaging is important, as it provides structural information for disease diagnosis. Despite the merits of previous automatic bronchus segmentation methods, they have paied less attention…

图像与视频处理 · 电气工程与系统科学 2024-06-25 Haifan Gong , Wenhao Huang , Huan Zhang , Yu Wang , Xiang Wan , Hong Shen , Guanbin Li , Haofeng Li

Accurately segmenting different organs from medical images is a critical prerequisite for computer-assisted diagnosis and intervention planning. This study proposes a deep learning-based approach for segmenting various organs from CT and…

Incorporation of prior knowledge about organ shape and location is key to improve performance of image analysis approaches. In particular, priors can be useful in cases where images are corrupted and contain artefacts due to limitations in…

Segmentation of lung tissue in computed tomography (CT) images is a precursor to most pulmonary image analysis applications. Semantic segmentation methods using deep learning have exhibited top-tier performance in recent years, however…

图像与视频处理 · 电气工程与系统科学 2023-04-27 Niloufar Delfan , Hamid Abrishami Moghaddam , Mohammadreza Modaresi , Kimia Afshari , Kasra Nezamabadi , Neda Pak , Omid Ghaemi , Mohamad Forouzanfar

With increasing scale in model and dataset size, the training of deep neural networks becomes a massive computational burden. One approach to speed up the training process is Selective Backprop. For this approach, we perform a forward pass…

机器学习 · 计算机科学 2023-12-11 Lukas Balles , Cedric Archambeau , Giovanni Zappella

The adaptability of the convolutional neural network (CNN) technique for aerodynamic meta-modeling tasks is probed in this work. The primary objective is to develop suitable CNN architecture for variable flow conditions and object geometry,…

机器学习 · 统计学 2018-01-18 Yao Zhang , Woong-Je Sung , Dimitri Mavris

Aerial image segmentation is the basis for applications such as automatically creating maps or tracking deforestation. In true orthophotos, which are often used in these applications, many objects and regions can be approximated well by…

计算机视觉与模式识别 · 计算机科学 2024-04-09 Daniel Gritzner , Jörn Ostermann

Object detection in aerial images is a challenging task due to the following reasons: (1) objects are small and dense relative to images; (2) the object scale varies in a wide range; (3) the number of object in different classes is…

计算机视觉与模式识别 · 计算机科学 2020-10-27 Zhiwei Wei , Chenzhen Duan , Xinghao Song , Ye Tian , Hongpeng Wang

Accurate classification of lung diseases from chest CT scans plays an important role in computer-aided diagnosis systems. However, medical imaging datasets often suffer from severe class imbalance, which may significantly degrade the…

图像与视频处理 · 电气工程与系统科学 2026-03-18 Kejin Lu , Jianfa Bai , Qingqiu Li , Runtian Yuan , Jilan Xu , Junlin Hou , Yuejie Zhang , Rui Feng

Despite the significant potential of Foundation Models (FMs) in medical imaging, their application to prognosis prediction remains challenging due to data scarcity, class imbalance, and task complexity, which limit their clinical adoption.…

计算机视觉与模式识别 · 计算机科学 2026-01-16 Filippo Ruffini , Elena Mulero Ayllon , Linlin Shen , Paolo Soda , Valerio Guarrasi

Detecting malignant pulmonary nodules at an early stage can allow medical interventions which may increase the survival rate of lung cancer patients. Using computer vision techniques to detect nodules can improve the sensitivity and the…

图像与视频处理 · 电气工程与系统科学 2020-10-30 Siqi Liu , Arnaud Arindra Adiyoso Setio , Florin C. Ghesu , Eli Gibson , Sasa Grbic , Bogdan Georgescu , Dorin Comaniciu

Most of object detection algorithms can be categorized into two classes: two-stage detectors and one-stage detectors. Recently, many efforts have been devoted to one-stage detectors for the simple yet effective architecture. Different from…

计算机视觉与模式识别 · 计算机科学 2020-04-14 Qi Qian , Lei Chen , Hao Li , Rong Jin

Point cloud segmentation (PCS) plays an essential role in robot perception and navigation tasks. To efficiently understand large-scale outdoor point clouds, their range image representation is commonly adopted. This image-like…

计算机视觉与模式识别 · 计算机科学 2024-05-28 Bike Chen , Chen Gong , Juha Röning

Image segmentation is pivotal in medical image analysis, facilitating clinical diagnosis, treatment planning, and disease evaluation. Deep learning has significantly advanced automatic segmentation methodologies by providing superior…

图像与视频处理 · 电气工程与系统科学 2026-01-22 Zhengyong Huang , Ning Jiang , Xingwen Sun , Lihua Zhang , Peng Chen , Jens Domke , Yao Sui

Semantic segmentation for aerial imagery is a challenging and important problem in remotely sensed imagery analysis. In recent years, with the success of deep learning, various convolutional neural network (CNN) based models have been…

计算机视觉与模式识别 · 计算机科学 2024-09-26 Panfeng Li , Youzuo Lin , Emily Schultz-Fellenz

Deep learning-based segmentation methods are widely utilized for detecting lesions in ultrasound images. Throughout the imaging procedure, the attenuation and scattering of ultrasound waves cause contour blurring and the formation of…

图像与视频处理 · 电气工程与系统科学 2024-11-22 Ruiguo Yu , Yiyang Zhang , Yuan Tian , Zhiqiang Liu , Xuewei Li , Jie Gao

In this paper, we propose an end-to-end deep neural network for solving the problem of imbalanced large and small organ segmentation in head and neck (HaN) CT images. To conduct radiotherapy planning for nasopharyngeal cancer, more than 10…

图像与视频处理 · 电气工程与系统科学 2019-07-30 Yunhe Gao , Rui Huang , Ming Chen , Zhe Wang , Jincheng Deng , Yuanyuan Chen , Yiwei Yang , Jie Zhang , Chanjuan Tao , Hongsheng Li

Accurate airway segmentation from chest computed tomography (CT) scans is essential for quantitative lung analysis, yet manual annotation is impractical and many automated U-Net-based methods yield disconnected components that hinder…

Manual annotation of airway regions in computed tomography images is a time-consuming and expertise-dependent task. Automatic airway segmentation is therefore a prerequisite for enabling rapid bronchoscopic navigation and the clinical…

图像与视频处理 · 电气工程与系统科学 2025-07-10 Qibiao Wu , Yagang Wang , Qian Zhang