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Related papers: Hierarchical I3D for Sign Spotting

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We investigate the scalable image classification problem with a large number of categories. Hierarchical visual data structures are helpful for improving the efficiency and performance of large-scale multi-class classification. We propose a…

Computer Vision and Pattern Recognition · Computer Science 2017-09-18 Yanyun Qu , Li Lin , Fumin Shen , Chang Lu , Yang Wu , Yuan Xie , Dacheng Tao

Existing Masked Image Modeling methods apply fixed mask patterns to guide the self-supervised training. As those mask patterns resort to different criteria to depict image contents, sticking to a fixed pattern leads to a limited vision cues…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Zhanzhou Feng , Shiliang Zhang

Humans are able to recognize structured relations in observation, allowing us to decompose complex scenes into simpler parts and abstract the visual world in multiple levels. However, such hierarchical reasoning ability of human perception…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Liulei Li , Tianfei Zhou , Wenguan Wang , Jianwu Li , Yi Yang

Sign language is a beautiful visual language and is also the primary language used by speaking and hearing-impaired people. However, sign language has many complex expressions, which are difficult for the public to understand and master.…

Computer Vision and Pattern Recognition · Computer Science 2022-04-20 Ronghui Li , Lu Meng

3D hierarchical semantic segmentation (3DHS) is crucial for embodied intelligence applications that demand a multi-grained and multi-hierarchy understanding of 3D scenes. Despite the progress, previous 3DHS methods have overlooked following…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Shuyu Cao , Chongshou Li , Jie Xu , Tianrui Li , Na Zhao

Visual localization is critical to many applications in computer vision and robotics. To address single-image RGB localization, state-of-the-art feature-based methods match local descriptors between a query image and a pre-built 3D model.…

Computer Vision and Pattern Recognition · Computer Science 2020-04-02 Xiaotian Li , Shuzhe Wang , Yi Zhao , Jakob Verbeek , Juho Kannala

Hierarchical federated learning (HFL) has emerged as a key architecture for large-scale wireless and Internet of Things systems, where devices communicate with nearby edge servers before reaching the cloud. In these environments, uplink…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-02-03 Amirreza Kazemi , Seyed Mohammad Azimi-Abarghouyi , Gabor Fodor , Carlo Fischione

We propose Hier-SLAM++, a comprehensive Neuro-Symbolic semantic 3D Gaussian Splatting SLAM method with both RGB-D and monocular input featuring an advanced hierarchical categorical representation, which enables accurate pose estimation as…

Robotics · Computer Science 2025-07-10 Boying Li , Vuong Chi Hao , Peter J. Stuckey , Ian Reid , Hamid Rezatofighi

Existing Sign Language Learning applications focus on the demonstration of the sign in the hope that the student will copy a sign correctly. In these cases, only a teacher can confirm that the sign was completed correctly, by reviewing a…

Machine Learning · Computer Science 2024-12-25 Nikita Louison , Wayne Goodridge , Koffka Khan

Deep learning has attained remarkable success in many 3D visual recognition tasks, including shape classification, object detection, and semantic segmentation. However, many of these results rely on manually collecting densely annotated…

Computer Vision and Pattern Recognition · Computer Science 2022-12-19 Fernando Julio Cendra , Lan Ma , Jiajun Shen , Xiaojuan Qi

While deeply supervised networks are common in recent literature, they typically impose the same learning objective on all transitional layers despite their varying representation powers. In this paper, we propose Hierarchically Supervised…

Computer Vision and Pattern Recognition · Computer Science 2021-11-04 Shubhankar Borse , Hong Cai , Yizhe Zhang , Fatih Porikli

Recent advances in implicit neural representations (INRs) have shown significant promise in modeling visual signals for various low-vision tasks including image super-resolution (ISR). INR-based ISR methods typically learn continuous…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Yuxuan Jiang , Ho Man Kwan , Tianhao Peng , Ge Gao , Fan Zhang , Xiaoqing Zhu , Joel Sole , David Bull

Hand gesture-based sign language recognition (SLR) is one of the most advanced applications of machine learning, and computer vision uses hand gestures. Although, in the past few years, many researchers have widely explored and studied how…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Abu Saleh Musa Miah , Md. Al Mehedi Hasan , Md Hadiuzzaman , Muhammad Nazrul Islam , Jungpil Shin

Open-vocabulary 3D segmentation enables exploration of 3D spaces using free-form text descriptions. Existing methods for open-vocabulary 3D instance segmentation primarily focus on identifying object-level instances but struggle with…

Computer Vision and Pattern Recognition · Computer Science 2025-01-23 Ayca Takmaz , Alexandros Delitzas , Robert W. Sumner , Francis Engelmann , Johanna Wald , Federico Tombari

Recognizing Traffic Signs using intelligent systems can drastically reduce the number of accidents happening world-wide. With the arrival of Self-driving cars it has become a staple challenge to solve the automatic recognition of Traffic…

Computer Vision and Pattern Recognition · Computer Science 2020-05-19 Sourajit Saha , Sharif Amit Kamran , Ali Shihab Sabbir

Continuous Sign Language Recognition (CSLR) focuses on the interpretation of a sequence of sign language gestures performed continually without pauses. In this study, we conduct an empirical evaluation of recent deep learning CSLR…

Computation and Language · Computer Science 2024-10-23 Sarah Alyami , Hamzah Luqman

Sign language recognition is a challenging gesture sequence recognition problem, characterized by quick and highly coarticulated motion. In this paper we focus on recognition of fingerspelling sequences in American Sign Language (ASL)…

Computer Vision and Pattern Recognition · Computer Science 2019-08-29 Bowen Shi , Aurora Martinez Del Rio , Jonathan Keane , Diane Brentari , Greg Shakhnarovich , Karen Livescu

Achieving human-like spatial intelligence for vision-language models (VLMs) requires inferring 3D structures from 2D observations, recognizing object properties and relations in 3D space, and performing high-level spatial reasoning. In this…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Huizhi Liang , Yichao Shen , Yu Deng , Sicheng Xu , Zhiyuan Feng , Tong Zhang , Yaobo Liang , Jiaolong Yang

Changes in facial expression, head movement, body movement and gesture movement are remarkable cues in sign language recognition, and most of the current continuous sign language recognition(CSLR) research methods mainly focus on static…

Computer Vision and Pattern Recognition · Computer Science 2024-03-01 Qidan Zhu , Jing Li , Fei Yuan , Quan Gan

Sign language recognition (SLR) refers to interpreting sign language glosses from given videos automatically. This research area presents a complex challenge in computer vision because of the rapid and intricate movements inherent in sign…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Muxin Pu , Mei Kuan Lim , Chun Yong Chong