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Incorporating geometric transformations that reflect the relative position changes between an observer and an object into computer vision and deep learning models has attracted much attention in recent years. However, the existing proposals…

计算机视觉与模式识别 · 计算机科学 2022-11-01 Nishan Khatri , Agnibh Dasgupta , Yucong Shen , Xin Zhong , Frank Y. Shih

In cone-beam X-ray transmission imaging, perspective deformation causes difficulty in direct, accurate geometric assessments of anatomical structures. In this work, the perspective deformation correction problem is formulated and addressed…

图像与视频处理 · 电气工程与系统科学 2023-01-05 Yixing Huang , Andreas Maier , Fuxin Fan , Björn Kreher , Xiaolin Huang , Rainer Fietkau , Christoph Bert , Florian Putz

This paper proposes a modification to the traditional multiline thru-reflect-line (TRL) or line-reflect-line (LRL) calibration method used for vector network analyzers (VNAs). Our proposed method eliminates the need for a thru (or line)…

应用物理 · 物理学 2023-08-24 Ziad Hatab , Michael Ernst Gadringer , Wolfgang Bösch

Optimization over the intersection of two manifolds arises in a broad range of applications, but is hindered by the coupled geometry of the feasible region. In this paper, we prove that the regularities -- clean intersection and intrinsic…

最优化与控制 · 数学 2026-05-22 Yan Yang , Bin Gao , Ya-xiang Yuan

Topology optimization is used for the design of high-performance structures but remains fundamentally limited by its iterative nature, requiring repeated finite element analyses that prevent real-time deployment and large-scale design…

计算工程、金融与科学 · 计算机科学 2026-04-07 Aaron Lutheran , Srijan Das , Alireza Tabarraei

With the prevalence of LiDAR sensors in autonomous driving, 3D object tracking has received increasing attention. In a point cloud sequence, 3D object tracking aims to predict the location and orientation of an object in consecutive frames…

计算机视觉与模式识别 · 计算机科学 2022-08-11 Zhipeng Luo , Changqing Zhou , Liang Pan , Gongjie Zhang , Tianrui Liu , Yueru Luo , Haiyu Zhao , Ziwei Liu , Shijian Lu

Correspondence pruning aims to find correct matches (inliers) from an initial set of putative correspondences, which is a fundamental task for many applications. The process of finding is challenging, given the varying inlier ratios between…

计算机视觉与模式识别 · 计算机科学 2024-01-05 Tangfei Liao , Xiaoqin Zhang , Li Zhao , Tao Wang , Guobao Xiao

This paper proposes an intrinsic pseudospectral convexification framework for optimal control problems with manifold constraints. While successive pseudospectral convexification combines spectral collocation with successive convexification,…

最优化与控制 · 数学 2025-12-11 Tatsuya Narumi , Shin-ichiro Sakai

UAV-ground visual tracking (UGVT) aims to simultaneously track the same object from both the UAV and the ground view. However, existing two-stream methods suffer from isolated feature extraction and rely heavily on implicit appearance…

计算机视觉与模式识别 · 计算机科学 2026-05-07 Boyue Xu , Ruichao Hou , Tongwei Ren , Gangshan Wu

Image tracing is a foundational component of the workflow in graphic design, engineering, and computer animation, linking hand-drawn concept images to collections of smooth curves needed for geometry processing and editing. Even for clean…

图形学 · 计算机科学 2018-09-07 Mikhail Bessmeltsev , Justin Solomon

Accurately recovering 6D poses in densely packed industrial bin-picking environments remain a serious challenge, owing to occlusions, reflections, and textureless parts. We introduce a holistic depth-only 6D pose estimation approach that…

计算机视觉与模式识别 · 计算机科学 2025-12-10 Nico Leuze , Maximilian Hoh , Samed Doğan , Nicolas R. -Peña , Alfred Schoettl

Neural fields are receiving increased attention as a geometric representation due to their ability to compactly store detailed and smooth shapes and easily undergo topological changes. Compared to classic geometry representations, however,…

计算机视觉与模式识别 · 计算机科学 2023-04-26 Arturs Berzins , Moritz Ibing , Leif Kobbelt

The lack of proper class discrimination among the Hyperspectral (HS) data points poses a potential challenge in HS classification. To address this issue, this paper proposes an optimal geometry-aware transformation for enhancing the…

机器学习 · 计算机科学 2018-07-10 Ramanarayan Mohanty , S L Happy , Aurobinda Routray

Range profiling refers to the measurement of target response along the radar slant range. It plays an important role in automatic target recognition. In this paper, we consider the design of transmit waveform to improve the range profiling…

信号处理 · 电气工程与系统科学 2021-03-19 Bo Tang , Jun Liu , Hai Wang , Yihua Hu

Most of the classical approaches to straight line detection only deal with a binary edge image and need to use 2D interpolation operation. This paper proposes a new transform method figuratively named as funnel transform which can…

计算机视觉与模式识别 · 计算机科学 2019-04-23 QianRu Wei , DaZheng Feng , WeiXing Zheng

A novel bilayer is introduced, consisting of a stiff film adhered to a soft substrate with patterned holes beneath the film and substrate interface. To uncover the transition of surface patterns, two dimensional plane strain simulations are…

软凝聚态物质 · 物理学 2017-04-07 Xiangbiao Liao , Liangliang Zhu , Hang Xiao , Junan Pan , Feng Hao , Xiaoyang Shi , Xi Chen

Stereo depth estimation relies on optimal correspondence matching between pixels on epipolar lines in the left and right images to infer depth. In this work, we revisit the problem from a sequence-to-sequence correspondence perspective to…

计算机视觉与模式识别 · 计算机科学 2021-08-27 Zhaoshuo Li , Xingtong Liu , Nathan Drenkow , Andy Ding , Francis X. Creighton , Russell H. Taylor , Mathias Unberath

We introduce SPECTRE, a fully transformer-based foundation model for volumetric computed tomography (CT). Our Self-Supervised & Cross-Modal Pretraining for CT Representation Extraction (SPECTRE) approach utilizes scalable 3D Vision…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Cris Claessens , Christiaan Viviers , Giacomo D'Amicantonio , Egor Bondarev , Fons van der Sommen

Understanding trajectory diversity is a fundamental aspect of addressing practical traffic tasks. However, capturing the diversity of trajectories presents challenges, particularly with traditional machine learning and recurrent neural…

人工智能 · 计算机科学 2023-12-04 Ruyi Feng , Zhibin Li , Bowen Liu , Yan Ding

Diffusion magnetic resonance imaging (dMRI) data allow to reconstruct the 3D pathways of axons within the white matter of the brain as a tractography. The analysis of tractographies has drawn attention from the machine learning and pattern…

机器学习 · 统计学 2015-04-03 Emanuele Olivetti , Thien Bao Nguyen , Paolo Avesani