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Reasoning about visual relationships is central to how humans interpret the visual world. This task remains challenging for current deep learning algorithms since it requires addressing three key technical problems jointly: 1) identifying…

Computer Vision and Pattern Recognition · Computer Science 2022-06-14 Xiaojian Ma , Weili Nie , Zhiding Yu , Huaizu Jiang , Chaowei Xiao , Yuke Zhu , Song-Chun Zhu , Anima Anandkumar

This paper presents a novel 3D semantic segmentation method for large-scale point cloud data that does not require annotated 3D training data or paired RGB images. The proposed approach projects 3D point clouds onto 2D images using virtual…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Toshihiko Nishimura , Hirofumi Abe , Kazuhiko Murasaki , Taiga Yoshida , Ryuichi Tanida

The autonomous car must recognize the driving environment quickly for safe driving. As the Light Detection And Range (LiDAR) sensor is widely used in the autonomous car, fast semantic segmentation of LiDAR point cloud, which is the…

Computer Vision and Pattern Recognition · Computer Science 2022-02-22 Jaehyun Park , Chansoo Kim , Kichun Jo

Vision Transformer(ViT) is one of the most widely used models in the computer vision field with its great performance on various tasks. In order to fully utilize the ViT-based architecture in various applications, proper visualization…

Computer Vision and Pattern Recognition · Computer Science 2024-02-08 Saebom Leem , Hyunseok Seo

Outdoor scene completion is a challenging issue in 3D scene understanding, which plays an important role in intelligent robotics and autonomous driving. Due to the sparsity of LiDAR acquisition, it is far more complex for 3D scene…

Computer Vision and Pattern Recognition · Computer Science 2021-09-24 Xuemeng Yang , Hao Zou , Xin Kong , Tianxin Huang , Yong Liu , Wanlong Li , Feng Wen , Hongbo Zhang

Semantic Segmentation is a crucial component in the perception systems of many applications, such as robotics and autonomous driving that rely on accurate environmental perception and understanding. In literature, several approaches are…

Computer Vision and Pattern Recognition · Computer Science 2021-03-17 Ran Cheng , Ryan Razani , Yuan Ren , Liu Bingbing

Deep learning models are increasingly utilized on resource-constrained edge devices for real-time data analytics. Recently, Vision Transformer and their variants have shown exceptional performance in various computer vision tasks. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-22 Xiang Liu , Yijun Song , Xia Li , Yifei Sun , Huiying Lan , Zemin Liu , Linshan Jiang , Jialin Li

Recent advances on Vision Transformer (ViT) and its improved variants have shown that self-attention-based networks surpass traditional Convolutional Neural Networks (CNNs) in most vision tasks. However, existing ViTs focus on the standard…

Computer Vision and Pattern Recognition · Computer Science 2022-05-24 Xiaofeng Mao , Gege Qi , Yuefeng Chen , Xiaodan Li , Ranjie Duan , Shaokai Ye , Yuan He , Hui Xue

Many point-based semantic segmentation methods have been designed for indoor scenarios, but they struggle if they are applied to point clouds that are captured by a LiDAR sensor in an outdoor environment. In order to make these methods more…

Computer Vision and Pattern Recognition · Computer Science 2021-12-06 Shijie Li , Yun Liu , Juergen Gall

Semantic segmentation has emerged as a pivotal area of study in computer vision, offering profound implications for scene understanding and elevating human-machine interactions across various domains. While 2D semantic segmentation has…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Aditya Krishnan , Jayneel Vora , Prasant Mohapatra

LiDAR scanning for surveying applications acquire measurements over wide areas and long distances, which produces large-scale 3D point clouds with significant local density variations. While existing 3D semantic segmentation models conduct…

Computer Vision and Pattern Recognition · Computer Science 2023-07-06 Ryan Faulkner , Luke Haub , Simon Ratcliffe , Ian Reid , Tat-Jun Chin

Vision transformers have recently made a breakthrough in computer vision showing excellent performance in terms of precision for numerous applications. However, their computational cost is very high compared to alternative approaches such…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Martial Guidez , Stefan Duffner , Christophe Garcia

LiDAR semantic segmentation is crucial for autonomous vehicles and mobile robots, requiring high accuracy and real-time processing, especially on resource-constrained embedded systems. Previous state-of-the-art methods often face a…

Computer Vision and Pattern Recognition · Computer Science 2025-10-09 Samir Abou Haidar , Alexandre Chariot , Mehdi Darouich , Cyril Joly , Jean-Emmanuel Deschaud

3D point clouds play a pivotal role in outdoor scene perception, especially in the context of autonomous driving. Recent advancements in 3D LiDAR segmentation often focus intensely on the spatial positioning and distribution of points for…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Li Li , Hubert P. H. Shum , Toby P. Breckon

In the evolving landscape of 6G networks, semantic communications are poised to revolutionize data transmission by prioritizing the transmission of semantic meaning over raw data accuracy. This paper presents a Vision Transformer…

Image and Video Processing · Electrical Eng. & Systems 2025-03-24 Muhammad Ahmed Mohsin , Muhammad Jazib , Zeeshan Alam , Muhmmad Farhan Khan , Muhammad Saad , Muhammad Ali Jamshed

The 3D visual grounding task aims to ground a natural language description to the targeted object in a 3D scene, which is usually represented in 3D point clouds. Previous works studied visual grounding under specific views. The…

Computer Vision and Pattern Recognition · Computer Science 2022-04-06 Shijia Huang , Yilun Chen , Jiaya Jia , Liwei Wang

Semantic segmentation of 3D meshes is an important problem for 3D scene understanding. In this paper we revisit the classic multiview representation of 3D meshes and study several techniques that make them effective for 3D semantic…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Abhijit Kundu , Xiaoqi Yin , Alireza Fathi , David Ross , Brian Brewington , Thomas Funkhouser , Caroline Pantofaru

Semantic segmentation requires large amounts of pixel-wise annotations to learn accurate models. In this paper, we present a video prediction-based methodology to scale up training sets by synthesizing new training samples in order to…

Computer Vision and Pattern Recognition · Computer Science 2019-07-04 Yi Zhu , Karan Sapra , Fitsum A. Reda , Kevin J. Shih , Shawn Newsam , Andrew Tao , Bryan Catanzaro

The ubiquitous and demonstrably suboptimal choice of resizing images to a fixed resolution before processing them with computer vision models has not yet been successfully challenged. However, models such as the Vision Transformer (ViT)…

This paper addresses the challenges in representation learning of 3D shape features by investigating state-of-the-art backbones paired with both contrastive supervised and self-supervised learning objectives. Computer vision methods…

Computer Vision and Pattern Recognition · Computer Science 2025-10-24 Márcus Vinícius Lobo Costa , Sherlon Almeida da Silva , Bárbara Caroline Benato , Leo Sampaio Ferraz Ribeiro , Moacir Antonelli Ponti