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Cardiac ultrasound diagnosis is critical for cardiovascular disease assessment, but acquiring standard views remains highly operator-dependent. Existing medical segmentation models often yield anatomically inconsistent results in images…

Robotics · Computer Science 2026-03-24 Zhiyan Cao , Zhengxi Wu , Yiwei Wang , Pei-Hsuan Lin , Li Zhang , Zhen Xie , Huan Zhao , Han Ding

Benefiting from the inductive biases learned from large-scale datasets, open-vocabulary semantic segmentation (OVSS) leverages the power of vision-language models, such as CLIP, to achieve remarkable progress without requiring task-specific…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Qiming Huang , Hao Ai , Jianbo Jiao

Environment prediction frameworks are critical for the safe navigation of autonomous vehicles (AVs) in dynamic settings. LiDAR-generated occupancy grid maps (L-OGMs) offer a robust bird's-eye view for the scene representation, enabling…

Computer Vision and Pattern Recognition · Computer Science 2025-10-20 Bernard Lange , Masha Itkina , Jiachen Li , Mykel J. Kochenderfer

Compact representations of objects is a common concept in computer science. Automated planning can be viewed as a case of this concept: a planning instance is a compact implicit representation of a graph and the problem is to find a path (a…

Artificial Intelligence · Computer Science 2014-01-24 Christer Bäckström , Peter Jonsson

It is well known that the visual information represented in the simple cells of the primary visual cortex V1 is spatially localized, orientation-sensitive and bandpass-filtered. In addition, the visual information represented is subsampled.…

Medical Physics · Physics 2024-01-01 Antonio González-López

We introduce a model for image morphing in the primary visual cortex V1 to perform completion of missing images in time. We model the output of simple cells through a family of Gabor filters and the propagation of the neural signal…

Analysis of PDEs · Mathematics 2022-08-16 Mattia Galeotti , Giovanna Citti , Alessandro Sarti

Recently, significant improvements in rate-distortion performance of image compression have been achieved with deep-learning techniques. A key factor in this success is the use of additional bits to predict an approximation of the latent…

Image and Video Processing · Electrical Eng. & Systems 2024-09-20 Chajin Shin , Sangjin Lee , Sangyoun Lee

CNN visualization and interpretation methods, like class-activation maps (CAMs), are typically used to highlight the image regions linked to class predictions. These models allow to simultaneously classify images and extract class-dependent…

Computer Vision and Pattern Recognition · Computer Science 2020-11-17 Soufiane Belharbi , Ismail Ben Ayed , Luke McCaffrey , Eric Granger

We propose a model of the functional architecture of curvature sensible cells in the visual cortex that associates curvature with scale. The feature space of orientation and position is naturally enhanced via its oriented prolongation,…

Neurons and Cognition · Quantitative Biology 2025-04-24 Vasiliki Liontou

It has been argued that the emergence of roughly periodic orientation preference maps (OPMs) in the primary visual cortex (V1) of carnivores and primates can be explained by a so-called statistical connectivity model. This model assumes…

Neurons and Cognition · Quantitative Biology 2023-10-18 Manuel Schottdorf , Stephen J. Eglen , Fred Wolf , Wolfgang Keil

Self-organized critical models are used to describe the 1/f-spectra of rather different physical situations like snow avalanches, noise of electric currents, luminosities of stars or topologies of landscapes. The prototype of the SOC-models…

Statistical Mechanics · Physics 2009-10-31 Dieter Joseph

Let G be a complex semisimple Lie group, K a maximal compact subgroup and V an irreducible representation of K. Denote by M the unique closed orbit of G in P(V) and by O its image via the moment map. For any measure on M we construct a map…

Differential Geometry · Mathematics 2010-12-10 Leonardo Biliotti , Alessandro Ghigi

LiDAR place recognition is a critical capability for autonomous navigation and cross-modal localization in large-scale outdoor environments. Existing approaches predominantly depend on pre-built 3D dense maps or aerial imagery, which impose…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Shuhao Kang , Martin Y. Liao , Yan Xia , Olaf Wysocki , Boris Jutzi , Daniel Cremers

This paper gives an overview of a theory for modelling the interaction between geometric image transformations and receptive field responses for a visual observer that views objects and spatio-temporal events in the environment. This…

Neurons and Cognition · Quantitative Biology 2026-05-14 Tony Lindeberg

Carrollian conformal field theory offers an alternative description of massless scattering amplitudes, that is holographic in nature. In an effort to build a framework that is both predictive and constraining, we construct operator product…

High Energy Physics - Theory · Physics 2026-04-20 Kevin Nguyen , Jakob Salzer

This paper proposes a representational model for image pairs such as consecutive video frames that are related by local pixel displacements, in the hope that the model may shed light on motion perception in primary visual cortex (V1). The…

Neural and Evolutionary Computing · Computer Science 2022-04-07 Ruiqi Gao , Jianwen Xie , Siyuan Huang , Yufan Ren , Song-Chun Zhu , Ying Nian Wu

The composition of the Fourier transform in $\mathbb{R}^n$ with a suitable pseudodifferential operator is called a Fourier operator. It is compact in appropriate function spaces. The paper deals with its spectral theory. This is based on…

Functional Analysis · Mathematics 2022-01-19 Hans Triebel

We investigate the propagation of optical vector vortices of slow light in a coherently prepared four-level tripod atomic system. The vector vortex consists of superposed pulse pairs with opposite circular polarizations and orbital angular…

Increasing demand for practical applications is forcing deeper research into optical vortices (OVs): from the generation and measurement to shaping and multiple singularities manipulation of OVs. Herein, we propose a new type of phase…

Optics · Physics 2020-02-12 Chen Wang , Yuan Ren , Tong Liu , Song Qiu , Zhimeng Li , Hao Wu

MRI quantification of cranial nerves such as anterior visual pathway (AVP) in MRI is challenging due to their thin small size, structural variation along its path, and adjacent anatomic structures. Segmentation of pathologically abnormal…

Computer Vision and Pattern Recognition · Computer Science 2015-08-06 Awais Mansoor , Juan J. Cerrolaza , Robert A. Avery , Marius G. Linguraru