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Visual localization is the task of estimating camera pose in a known scene, which is an essential problem in robotics and computer vision. However, long-term visual localization is still a challenge due to the environmental appearance…

机器人学 · 计算机科学 2022-12-02 Yuxuan Chen , Timothy D. Barfoot

In this paper, we consider the problem of long-term point tracking, which requires consistent identification of points across multiple frames in a video, despite changes in appearance, lighting, perspective, and occlusions. We target online…

计算机视觉与模式识别 · 计算机科学 2025-01-31 Görkay Aydemir , Xiongyi Cai , Weidi Xie , Fatma Güney

Correlation filter has been proven to be an effective tool for a number of approaches in visual tracking, particularly for seeking a good balance between tracking accuracy and speed. However, correlation filter based models are susceptible…

计算机视觉与模式识别 · 计算机科学 2018-11-09 Yanchun Xie , Jimin Xiao , Kaizhu Huang , Jeyarajan Thiyagalingam , Yao Zhao

Transformers have been successfully applied to the visual tracking task and significantly promote tracking performance. The self-attention mechanism designed to model long-range dependencies is the key to the success of Transformers.…

计算机视觉与模式识别 · 计算机科学 2022-05-10 Zhihong Fu , Zehua Fu , Qingjie Liu , Wenrui Cai , Yunhong Wang

Today, most methods for image understanding tasks rely on feed-forward neural networks. While this approach has allowed for empirical accuracy, efficiency, and task adaptation via fine-tuning, it also comes with fundamental disadvantages.…

计算机视觉与模式识别 · 计算机科学 2024-04-19 Julian Ost , Tanushree Banerjee , Mario Bijelic , Felix Heide

We propose a novel method of introducing structure into existing machine learning techniques by developing structure-based similarity and distance measures. To learn structural information, low-dimensional structure of the data is captured…

机器学习 · 统计学 2011-10-27 Joseph Wang , Venkatesh Saligrama , David A. Castañón

Reliably reconstructing physical fields from sparse sensor data is a challenge that frequently arises in many scientific domains. In practice, the process generating the data often is not understood to sufficient accuracy. Therefore, there…

机器学习 · 计算机科学 2024-01-23 Xihaier Luo , Wei Xu , Yihui Ren , Shinjae Yoo , Balu Nadiga

Vision-Language Pretrained (VLP) models have achieved impressive performance on multimodal tasks, including text-image retrieval, based on dense representations. Meanwhile, Learned Sparse Retrieval (LSR) has gained traction in text-only…

计算与语言 · 计算机科学 2025-08-26 Jonghyun Song , Youngjune Lee , Gyu-Hwung Cho , Ilhyeon Song , Saehun Kim , Yohan Jo

Tracking requires building a discriminative model for the target in the inference stage. An effective way to achieve this is online learning, which can comfortably outperform models that are only trained offline. Recent research shows that…

计算机视觉与模式识别 · 计算机科学 2021-11-16 Tianyu Zhu , Rongkai Ma , Mehrtash Harandi , Tom Drummond

In recent years, deep neural networks have shown remarkable progress in dense disparity estimation from dynamic scenes in monocular structured light systems. However, their performance significantly drops when applied in unseen…

计算机视觉与模式识别 · 计算机科学 2023-10-16 Rukun Qiao , Hiroshi Kawasaki , Hongbin Zha

We propose a stochastic variance reduced optimization algorithm for solving sparse learning problems with cardinality constraints. Sufficient conditions are provided, under which the proposed algorithm enjoys strong linear convergence…

机器学习 · 计算机科学 2017-12-27 Xingguo Li , Raman Arora , Han Liu , Jarvis Haupt , Tuo Zhao

Point tracking aims to identify the same physical point across video frames and serves as a geometry-aware representation of motion. This representation supports a wide range of applications, from robotics to augmented reality, by enabling…

计算机视觉与模式识别 · 计算机科学 2025-07-15 Görkay Aydemir

We propose a universal video-level modality-awareness tracking model with online dense temporal token learning (called {\modaltracker}). It is designed to support various tracking tasks, including RGB, RGB+Thermal, RGB+Depth, and RGB+Event,…

计算机视觉与模式识别 · 计算机科学 2025-07-30 Yaozong Zheng , Bineng Zhong , Qihua Liang , Shengping Zhang , Guorong Li , Xianxian Li , Rongrong Ji

State-of-the-art neural network models for optical flow estimation require a dense correlation volume at high resolutions for representing per-pixel displacement. Although the dense correlation volume is informative for accurate estimation,…

计算机视觉与模式识别 · 计算机科学 2021-04-07 Shihao Jiang , Yao Lu , Hongdong Li , Richard Hartley

We study the tracking problem, namely, estimating the hidden state of an object over time, from unreliable and noisy measurements. The standard framework for the tracking problem is the generative framework, which is the basis of solutions…

机器学习 · 计算机科学 2012-03-19 Kamalika Chaudhuri , Yoav Freund , Daniel Hsu

We present a sparse analogue to stochastic gradient descent that is guaranteed to perform well under similar conditions to the lasso. In the linear regression setup with irrepresentable noise features, our algorithm recovers the support set…

统计理论 · 数学 2014-12-16 Jacob Steinhardt , Stefan Wager , Percy Liang

Sparse learning is a very important tool for mining useful information and patterns from high dimensional data. Non-convex non-smooth regularized learning problems play essential roles in sparse learning, and have drawn extensive attentions…

机器学习 · 计算机科学 2020-10-22 Guannan Liang , Qianqian Tong , Jiahao Ding , Miao Pan , Jinbo Bi

Visual single object tracking aims to continuously localize and estimate the scale of a target in subsequent video frames, given only its initial state in the first frame. This task has traditionally been framed as a template matching…

计算机视觉与模式识别 · 计算机科学 2025-07-23 Biao Wang , Wenwen Li , Jiawei Ge

Sparse linear regression -- finding an unknown vector from linear measurements -- is now known to be possible with fewer samples than variables, via methods like the LASSO. We consider the multiple sparse linear regression problem, where…

机器学习 · 计算机科学 2012-02-28 Ali Jalali , Pradeep Ravikumar , Sujay Sanghavi

Implicit neural representations are a promising new avenue of representing general signals by learning a continuous function that, parameterized as a neural network, maps the domain of a signal to its codomain; the mapping from spatial…

机器学习 · 计算机科学 2021-11-09 Jaeho Lee , Jihoon Tack , Namhoon Lee , Jinwoo Shin