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A shape filter is presented to repair segmentation results obtained in calcium imaging of neurons in vivo. This post-segmentation algorithm can automatically smooth the shapes obtained from a preliminary segmentation, while precluding the…

Image and Video Processing · Electrical Eng. & Systems 2018-06-04 Jie Wang , Zhongxiao Fu , Nasrin Sadeghzadehyazdi , Jonathan Kipnis , Scott T. Acton

The world is covered with millions of buildings, and precisely knowing each instance's position and extents is vital to a multitude of applications. Recently, automated building footprint segmentation models have shown superior detection…

Computer Vision and Pattern Recognition · Computer Science 2018-03-19 Diego Marcos , Devis Tuia , Benjamin Kellenberger , Lisa Zhang , Min Bai , Renjie Liao , Raquel Urtasun

Parameter values for seismic processing steps are often chosen on a regular grid of samples and interpolated. Active learning instead attempts to optimally select the samples on which parameter values are chosen. For parameters that do not…

Geophysics · Physics 2021-06-18 Alan Richardson

Few-shot segmentation (FSS) aims to segment objects of unseen classes given only a few annotated support images. Most existing methods simply stitch query features with independent support prototypes and segment the query image by feeding…

Computer Vision and Pattern Recognition · Computer Science 2022-11-03 Kai Huang , Mingfei Cheng , Yang Wang , Bochen Wang , Ye Xi , Feigege Wang , Peng Chen

Pedestrian Attribute Recognition (PAR) focuses on identifying various attributes in pedestrian images, with key applications in person retrieval, suspect re-identification, and soft biometrics. However, Deep Neural Networks (DNNs) for PAR…

Radiographic images are a cornerstone of medical diagnostics in orthopaedics, with anatomical landmark detection serving as a crucial intermediate step for information extraction. General-purpose foundational segmentation models, such as…

Image and Video Processing · Electrical Eng. & Systems 2026-02-23 Ekaterina Stansfield , Jennifer A. Mitterer , Abdulrahman Altahhan

Few-shot medical image segmentation (FSMIS) aims to perform the limited annotated data learning in the medical image analysis scope. Despite the progress has been achieved, current FSMIS models are all trained and deployed on the same data…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Yazhou Zhu , Minxian Li , Qiaolin Ye , Shidong Wang , Tong Xin , Haofeng Zhang

To meet the clinical demand for accurate 3D lumbar spine assessment in a weight-bearing position, this study presents a novel, fully automatic framework for high-precision 3D reconstruction from biplanar X-ray images, overcoming the…

Image and Video Processing · Electrical Eng. & Systems 2025-10-08 Wanxin Yu , Zhemin Zhu , Cong Wang , Yihang Bao , Chunjie Xia , Rongshan Cheng , Yan Yu , Tsung-Yuan Tsai

In this work, we use facial landmarks to make the deformation for facial images more authentic. The deformation includes the expansion of eyes and the shrinking of noses, mouths, and cheeks. An advanced 106-point facial landmark detector is…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 Chaoyue Song , Yugang Chen , Shulai Zhang , Bingbing Ni

Active Simultaneous Localization and Mapping (SLAM) is the problem of planning and controlling the motion of a robot to build the most accurate and complete model of the surrounding environment. Since the first foundational work in active…

Texture is intuitively defined as a repeated arrangement of a basic pattern or object in an image. There is no mathematical definition of a texture though. The human visual system is able to identify and segment different textures in a…

Computer Vision and Pattern Recognition · Computer Science 2013-07-01 Aditya Tatu , Sumukh Bansal

One of the main challenges in simultaneous localization and mapping (SLAM) is real-time processing. High-computational loads linked to data acquisition and processing complicate this task. This article presents an efficient feature…

The convergence analysis for least-squares finite element methods led to various adaptive mesh-refinement strategies: Collective marking algorithms driven by the built-in a posteriori error estimator or an alternative explicit…

Numerical Analysis · Mathematics 2023-09-18 Philipp Bringmann

Objective: The study aims to address the challenge of aligning Standard Fundus Images (SFIs) and Ultra-Widefield Fundus Images (UWFIs), which is difficult due to their substantial differences in viewing range and the amorphous appearance of…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Kanggeon Lee , Su Jeong Song , Soochahn Lee , Kyoung Mu Lee

Anatomical landmarks are a crucial prerequisite for many medical imaging tasks. Usually, the set of landmarks for a given task is predefined by experts. The landmark locations for a given image are then annotated manually or via machine…

Computer Vision and Pattern Recognition · Computer Science 2020-01-23 Richard Droste , Pierre Chatelain , Lior Drukker , Harshita Sharma , Aris T. Papageorghiou , J. Alison Noble

Object SLAM is considered increasingly significant for robot high-level perception and decision-making. Existing studies fall short in terms of data association, object representation, and semantic mapping and frequently rely on additional…

Robotics · Computer Science 2023-10-09 Yanmin Wu , Yunzhou Zhang , Delong Zhu , Zhiqiang Deng , Wenkai Sun , Xin Chen , Jian Zhang

The Active Subspace (AS) method is a widely used technique for identifying the most influential directions in high-dimensional input spaces that affect the output of a computational model. The standard AS algorithm requires a sufficient…

Numerical Analysis · Mathematics 2025-10-24 Fabio Nobile , Matteo Raviola , Raul Tempone

Prevalent semantic segmentation solutions, despite their different network designs (FCN based or attention based) and mask decoding strategies (parametric softmax based or pixel-query based), can be placed in one category, by considering…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Tianfei Zhou , Wenguan Wang , Ender Konukoglu , Luc Van Gool

The encoding of the target in object tracking moves from the coarse bounding-box to fine-grained segmentation map recently. Revisiting de facto real-time approaches that are capable of predicting mask during tracking, we observed that they…

Computer Vision and Pattern Recognition · Computer Science 2021-11-03 Zhipeng Zhang , Bing Li , Weiming Hu , Houwen Peng

Learning-based approaches for semantic segmentation have two inherent challenges. First, acquiring pixel-wise labels is expensive and time-consuming. Second, realistic segmentation datasets are highly unbalanced: some categories are much…

Computer Vision and Pattern Recognition · Computer Science 2020-02-18 Arantxa Casanova , Pedro O. Pinheiro , Negar Rostamzadeh , Christopher J. Pal