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Estimating the pose of a camera with respect to a 3D reconstruction or scene representation is a crucial step for many mixed reality and robotics applications. Given the vast amount of available data nowadays, many applications constrain…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Marcela Mera-Trujillo , Benjamin Smith , Victor Fragoso

We introduce Mini-Sequence Transformer (MsT), a simple and effective methodology for highly efficient and accurate LLM training with extremely long sequences. MsT partitions input sequences and iteratively processes mini-sequences to reduce…

Machine Learning · Computer Science 2024-11-12 Cheng Luo , Jiawei Zhao , Zhuoming Chen , Beidi Chen , Anima Anandkumar

Scene text recognition (STR) involves the task of reading text in cropped images of natural scenes. Conventional models in STR employ convolutional neural network (CNN) followed by recurrent neural network in an encoder-decoder framework.…

Computer Vision and Pattern Recognition · Computer Science 2022-11-10 Yew Lee Tan , Adams Wai-kin Kong , Jung-Jae Kim

Explicit feature-grid based NeRF models have shown promising results in terms of rendering quality and significant speed-up in training. However, these methods often require a significant amount of data to represent a single scene or…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Soonbin Lee , Fangwen Shu , Yago Sanchez , Thomas Schierl , Cornelius Hellge

Vision transformers have gained significant attention and achieved state-of-the-art performance in various computer vision tasks, including image classification, instance segmentation, and object detection. However, challenges remain in…

Computer Vision and Pattern Recognition · Computer Science 2023-11-21 Badri N. Patro , Vijay Srinivas Agneeswaran

Reconstructing posed 3D human models from monocular images has important applications in the sports industry, including performance tracking, injury prevention and virtual training. In this work, we combine 3D human pose and shape…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Lorenza Prospero , Abdullah Hamdi , Joao F. Henriques , Christian Rupprecht

We introduce SkelFormer, a novel markerless motion capture pipeline for multi-view human pose and shape estimation. Our method first uses off-the-shelf 2D keypoint estimators, pre-trained on large-scale in-the-wild data, to obtain 3D joint…

Computer Vision and Pattern Recognition · Computer Science 2024-04-22 Vandad Davoodnia , Saeed Ghorbani , Alexandre Messier , Ali Etemad

We study the problem of human action recognition using motion capture (MoCap) sequences. Unlike existing techniques that take multiple manual steps to derive standardized skeleton representations as model input, we propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Xiaoyu Zhu , Po-Yao Huang , Junwei Liang , Celso M. de Melo , Alexander Hauptmann

Occlusions remain one of the key challenges in 3D body pose estimation from single-camera video sequences. Temporal consistency has been extensively used to mitigate their impact but the existing algorithms in the literature do not…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Soumava Kumar Roy , Ilia Badanin , Sina Honari , Pascal Fua

3D human pose estimation is fundamental to understanding human behavior. Recently, promising results have been achieved by graph convolutional networks (GCNs), which achieve state-of-the-art performance and provide rather light-weight…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Niloofar Azizi , Horst Possegger , Emanuele Rodolà , Horst Bischof

Recent Transformer-based 3D object detectors learn point cloud features either from point- or voxel-based representations. However, the former requires time-consuming sampling while the latter introduces quantization errors. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Honghui Yang , Wenxiao Wang , Minghao Chen , Binbin Lin , Tong He , Hua Chen , Xiaofei He , Wanli Ouyang

There has been a growing interest in wideband spectrum sensing due to its applications in cognitive radios and electronic surveillance. To overcome the sampling rate bottleneck for wideband spectrum sensing, in this paper, we study the…

Information Theory · Computer Science 2019-10-17 Linxiao Yang , Jun Fang , Huiping Duan , Hongbin Li

Line segment detection is a fundamental low-level task in computer vision, and improvements in this task can impact more advanced methods that depend on it. Most new methods developed for line segment detection are based on Convolutional…

Computer Vision and Pattern Recognition · Computer Science 2024-11-21 Sebastian Janampa , Marios Pattichis

Point cloud sequences are irregular and unordered in the spatial dimension while exhibiting regularities and order in the temporal dimension. Therefore, existing grid based convolutions for conventional video processing cannot be directly…

Computer Vision and Pattern Recognition · Computer Science 2022-05-30 Hehe Fan , Xin Yu , Yuhang Ding , Yi Yang , Mohan Kankanhalli

The development of learning-based hyperspectral image (HSI) compression models has recently attracted significant interest. Existing models predominantly utilize convolutional filters, which capture only local dependencies. Furthermore,they…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Martin Hermann Paul Fuchs , Behnood Rasti , Begüm Demir

Human pose estimation, with its broad applications in action recognition and motion capture, has experienced significant advancements. However, current Transformer-based methods for video pose estimation often face challenges in managing…

Computer Vision and Pattern Recognition · Computer Science 2025-03-10 Zhigang Wang , Shaojing Fan , Zhenguang Liu , Zheqi Wu , Sifan Wu , Yingying Jiao

Most recent transformer-based models show impressive performance on vision tasks, even better than Convolution Neural Networks (CNN). In this work, we present a novel, flexible, and effective transformer-based model for high-quality…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Ruohao Guo , Dantong Niu , Liao Qu , Zhenbo Li

This paper addresses the problem of compression of 3D point cloud sequences that are characterized by moving 3D positions and color attributes. As temporally successive point cloud frames are similar, motion estimation is key to effective…

Computer Vision and Pattern Recognition · Computer Science 2016-08-24 Dorina Thanou , Philip A. Chou , Pascal Frossard

Single Particle Tracking (SPT) can aid in understanding complex spatio-temporal processes. However, quantifying diffusivity and forces from individual live cell trajectories is complicated by inter- & intra-trajectory kinetic heterogeneity,…

Quantitative Methods · Quantitative Biology 2016-05-19 Christopher P. Calderon

Learned video compression (LVC) has witnessed remarkable advancements in recent years. Similar as the traditional video coding, LVC inherits motion estimation/compensation, residual coding and other modules, all of which are implemented…

Image and Video Processing · Electrical Eng. & Systems 2023-09-22 Yanbo Gao , Wenjia Huang , Shuai Li , Hui Yuan , Mao Ye , Siwei Ma