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Recent image-to-image translation works have been transferred from supervised to unsupervised settings due to the expensive cost of capturing or labeling large amounts of paired data. However, current unsupervised methods using the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Pan Zhang , Jianmin Bao , Ting Zhang , Dong Chen , Fang Wen

LiDAR-based sparse 3D object detection plays a crucial role in autonomous driving applications due to its computational efficiency advantages. Existing methods either use the features of a single central voxel as an object proxy, or treat…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Lin Liu , Ziying Song , Qiming Xia , Feiyang Jia , Caiyan Jia , Lei Yang , Hongyu Pan

Correlation filter (CF) based tracking algorithms have demonstrated favorable performance recently. Nevertheless, the top performance trackers always employ complicated optimization methods which constraint their real-time applications. How…

Computer Vision and Pattern Recognition · Computer Science 2019-05-14 Yipeng Ma , Chun Yuan , Peng Gao , Fei Wang

In this paper we propose a novel sparse optical flow (SOF)-based line feature tracking method for the camera pose estimation problem. This method is inspired by the point-based SOF algorithm and developed based on an observation that two…

Computer Vision and Pattern Recognition · Computer Science 2022-04-18 Qiang Fu , Hongshan Yu , Islam Ali , Hong Zhang

Sparse 3D detectors have received significant attention since the query-based paradigm embraces low latency without explicit dense BEV feature construction. However, these detectors achieve worse performance than their dense counterparts.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-11 Hongcheng Zhang , Liu Liang , Pengxin Zeng , Xiao Song , Zhe Wang

Establishing a sparse set of keypoint correspon dences between images is a fundamental task in many computer vision pipelines. Often, this translates into a computationally expensive nearest neighbor search, where every keypoint descriptor…

Computer Vision and Pattern Recognition · Computer Science 2022-08-11 Emanuele Santellani , Christian Sormann , Mattia Rossi , Andreas Kuhn , Friedrich Fraundorfer

While vision transformers have achieved impressive results, effectively and efficiently accelerating these models can further boost performances. In this work, we propose a dense/sparse training framework to obtain a unified model, enabling…

Computer Vision and Pattern Recognition · Computer Science 2022-10-13 Ling Li , David Thorsley , Joseph Hassoun

Image resampling is a basic technique that is widely employed in daily applications, such as camera photo editing. Recent deep neural networks (DNNs) have made impressive progress in performance by introducing learned data priors. Still,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Jiacheng Li , Chang Chen , Fenglong Song , Youliang Yan , Zhiwei Xiong

Exploring robust and efficient association methods has always been an important issue in multiple-object tracking (MOT). Although existing tracking methods have achieved impressive performance, congestion and frequent occlusions still pose…

Computer Vision and Pattern Recognition · Computer Science 2023-11-21 Zelin Liu , Xinggang Wang , Cheng Wang , Wenyu Liu , Xiang Bai

Parameter-Efficient Fine-tuning (PEFT) facilitates the fine-tuning of Large Language Models (LLMs) under limited resources. However, the fine-tuning performance with PEFT on complex, knowledge-intensive tasks is limited due to the…

Computation and Language · Computer Science 2024-06-10 Jitai Hao , WeiWei Sun , Xin Xin , Qi Meng , Zhumin Chen , Pengjie Ren , Zhaochun Ren

Local Feature Matching, an essential component of several computer vision tasks (e.g., structure from motion and visual localization), has been effectively settled by Transformer-based methods. However, these methods only integrate…

Computer Vision and Pattern Recognition · Computer Science 2023-10-23 Xinyu Zhang , Li Wang , Zhiqiang Jiang , Kun Dai , Tao Xie , Lei Yang , Wenhao Yu , Yang Shen , Jun Li

Model efficiency has become increasingly important in computer vision. In this paper, we systematically study neural network architecture design choices for object detection and propose several key optimizations to improve efficiency.…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Mingxing Tan , Ruoming Pang , Quoc V. Le

Real-time small object detection in Unmanned Aerial Vehicle (UAV) imagery remains challenging due to limited feature representation and ineffective multi-scale fusion. Existing methods underutilize frequency information and rely on static…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Yu Xia , Chang Liu , Tianqi Xiang , Zhigang Tu

Effectively describing features for cross-modal remote sensing image matching remains a challenging task due to the significant geometric and radiometric differences between multimodal images. Existing methods primarily extract features at…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Abu Sadat Mohammad Salehin Amit , Xiaoli Zhang , Md Masum Billa Shagar , Zhaojun Liu , Xiongfei Li , Fanlong Meng

Image stitching aims to construct a wide field of view with high spatial resolution, which cannot be achieved in a single exposure. Typically, conventional image stitching techniques, other than deep learning, require complex computation…

Computer Vision and Pattern Recognition · Computer Science 2024-07-31 Hao Li , Lipo Wang , Tianyun Zhao , Wei Zhao

Flow matching models have shown great potential in image generation tasks among probabilistic generative models. However, most flow matching models in the literature do not explicitly utilize the underlying clustering structure in the…

Computer Vision and Pattern Recognition · Computer Science 2025-10-09 Anirban Samaddar , Yixuan Sun , Viktor Nilsson , Sandeep Madireddy

The paper presents an algorithm for depth map estimation from the light field images in relatively small amount of time, using only single thread on CPU. The proposed method improves existing principle of line fitting in 4-dimensional light…

Computer Vision and Pattern Recognition · Computer Science 2018-05-02 Yuriy Anisimov , Didier Stricker

Dense image prediction tasks demand features with strong category information and precise spatial boundary details at high resolution. To achieve this, modern hierarchical models often utilize feature fusion, directly adding upsampled…

Computer Vision and Pattern Recognition · Computer Science 2024-08-26 Linwei Chen , Ying Fu , Lin Gu , Chenggang Yan , Tatsuya Harada , Gao Huang

Dense image matching is a fundamental low-level problem in Computer Vision, which has received tremendous attention from both discrete and continuous optimization communities. The goal of this paper is to combine the advantages of discrete…

Computer Vision and Pattern Recognition · Computer Science 2016-01-26 Alexander Shekhovtsov , Christian Reinbacher , Gottfried Graber , Thomas Pock

Multi-agent collaborative perception has emerged as a widely recognized technology in the field of autonomous driving in recent years. However, current collaborative perception predominantly relies on LiDAR point clouds, with significantly…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Shaohong Wang , Lu Bin , Xinyu Xiao , Zhiyu Xiang , Hangguan Shan , Eryun Liu