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We present a performance analysis for image registration with gradient descent methods. We consider a typical multiscale registration setting where the global 2-D translation between a pair of images is estimated by smoothing the images and…

Computer Vision and Pattern Recognition · Computer Science 2014-01-14 Elif Vural , Pascal Frossard

Model-Agnostic Meta-Learning (MAML) is one of the most successful meta-learning techniques for few-shot learning. It uses gradient descent to learn commonalities between various tasks, enabling the model to learn the meta-initialization of…

Machine Learning · Computer Science 2022-08-18 Lin Ding , Peng Liu , Wenfeng Shen , Weijia Lu , Shengbo Chen

The development of machine learning is promoting the search for fast and stable minimization algorithms. To this end, we suggest a change in the current gradient descent methods that should speed up the motion in flat regions and slow it…

Machine Learning · Computer Science 2019-06-13 Marco Baiesi

Segment Anything Model (SAM) has gained significant recognition in the field of semantic segmentation due to its versatile capabilities and impressive performance. Despite its success, SAM faces two primary limitations: (1) it relies…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Yuchen Li , Li Zhang , Youwei Liang , Pengtao Xie

Foundational models such as the Segment Anything Model (SAM) are gaining traction in medical imaging segmentation, supporting multiple downstream tasks. However, such models are supervised in nature, still relying on large annotated…

Computer Vision and Pattern Recognition · Computer Science 2025-03-07 Aishik Konwer , Zhijian Yang , Erhan Bas , Cao Xiao , Prateek Prasanna , Parminder Bhatia , Taha Kass-Hout

Although existing Sparsely Annotated Object Detection (SAOD) approches have made progress in handling sparsely annotated environments in multispectral domain, where only some pedestrians are annotated, they still have the following…

Computer Vision and Pattern Recognition · Computer Science 2025-01-16 Chan Lee , Seungho Shin , Gyeong-Moon Park , Jung Uk Kim

The Segment Anything Model (SAM) is widely used for segmenting a diverse range of objects in natural images from simple user prompts like points or bounding boxes. However, SAM's performance decreases substantially when applied to…

Computer Vision and Pattern Recognition · Computer Science 2025-04-24 Tristan Piater , Björn Barz , Alexander Freytag

Unsupervised monocular depth learning generally relies on the photometric relation among temporally adjacent images. Most of previous works use both mean absolute error (MAE) and structure similarity index measure (SSIM) with conventional…

Computer Vision and Pattern Recognition · Computer Science 2025-06-06 Yijun Cao , Fuya Luo , Yongjie Li

Segment Anything Model (SAM) has emerged as a transformative approach in image segmentation, acclaimed for its robust zero-shot segmentation capabilities and flexible prompting system. Nonetheless, its performance is challenged by images…

Computer Vision and Pattern Recognition · Computer Science 2024-06-17 Wei-Ting Chen , Yu-Jiet Vong , Sy-Yen Kuo , Sizhuo Ma , Jian Wang

We study a method that involves principally convex feasibility-seeking and makes secondary efforts of objective function value reduction. This is the well-known superiorization method (SM), where the iterates of an asymptotically convergent…

Optimization and Control · Mathematics 2025-02-07 Kay Barshad , Yair Censor , Walaa Moursi , Tyler Weames , Henry Wolkowicz

Semantic segmentation is a crucial task in medical imaging. Although supervised learning techniques have proven to be effective in performing this task, they heavily depend on large amounts of annotated training data. The recently…

Computer Vision and Pattern Recognition · Computer Science 2024-11-20 Ron Keuth , Lasse Hansen , Maren Balks , Ronja Jäger , Anne-Nele Schröder , Ludger Tüshaus , Mattias Heinrich

Quality assessment of images and videos emphasizes both local details and global semantics, whereas general data sampling methods (e.g., resizing, cropping or grid-based fragment) fail to catch them simultaneously. To address the…

Computer Vision and Pattern Recognition · Computer Science 2024-01-08 Yongxu Liu , Yinghui Quan , Guoyao Xiao , Aobo Li , Jinjian Wu

Single-point annotation in visual tasks, with the goal of minimizing labelling costs, is becoming increasingly prominent in research. Recently, visual foundation models, such as Segment Anything (SAM), have gained widespread usage due to…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Zhaoyang Wei , Pengfei Chen , Xuehui Yu , Guorong Li , Jianbin Jiao , Zhenjun Han

Classic zeroth-order optimization approaches typically optimize for a smoothed version of the original function, i.e., the expected objective under randomly perturbed model parameters. This can be interpreted as encouraging the loss values…

Machine Learning · Computer Science 2025-10-21 Xuchen Gong , Tian Li

Depth perception is crucial for a wide range of robotic applications. Multi-frame self-supervised depth estimation methods have gained research interest due to their ability to leverage large-scale, unlabeled real-world data. However, the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Yue-Jiang Dong , Fang-Lue Zhang , Song-Hai 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

The remarkable capabilities of the Segment Anything Model (SAM) for tackling image segmentation tasks in an intuitive and interactive manner has sparked interest in the design of effective visual prompts. Such interest has led to the…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Jorge Quesada , Zoe Fowler , Mohammad Alotaibi , Mohit Prabhushankar , Ghassan AlRegib

One of the most important parts of Artificial Neural Networks is minimizing the loss functions which tells us how good or bad our model is. To minimize these losses we need to tune the weights and biases. Also to calculate the minimum value…

Machine Learning · Computer Science 2021-01-08 Kaustubh Yadav

In model-based reinforcement learning, most algorithms rely on simulating trajectories from one-step models of the dynamics learned on data. A critical challenge of this approach is the compounding of one-step prediction errors as the…

Machine Learning · Computer Science 2024-02-06 Abdelhakim Benechehab , Albert Thomas , Giuseppe Paolo , Maurizio Filippone , Balázs Kégl

This paper introduces SAMAug, a novel visual point augmentation method for the Segment Anything Model (SAM) that enhances interactive image segmentation performance. SAMAug generates augmented point prompts to provide more information about…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Haixing Dai , Chong Ma , Zhiling Yan , Zhengliang Liu , Enze Shi , Yiwei Li , Peng Shu , Xiaozheng Wei , Lin Zhao , Zihao Wu , Fang Zeng , Dajiang Zhu , Wei Liu , Quanzheng Li , Lichao Sun , Shu Zhang Tianming Liu , Xiang Li
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