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We propose a network architecture to perform efficient scene understanding. This work presents three main novelties: the first is an Improved Guided Upsampling Module that can replace in toto the decoder part in common semantic segmentation…

Computer Vision and Pattern Recognition · Computer Science 2019-05-23 Davide Mazzini , Raimondo Schettini

Pothole detection is crucial for road safety and maintenance, traditionally relying on 2D image segmentation. However, existing 3D Semantic Pothole Segmentation research often overlooks point cloud sparsity, leading to suboptimal local…

Computer Vision and Pattern Recognition · Computer Science 2024-09-01 Sahil Nawale , Dhruv Khut , Daksh Dave , Gauransh Sawhney , Pushkar Aggrawal , Kailas Devadakar

We present an innovative two-headed attention layer that combines geometric and latent features to segment a 3D scene into semantically meaningful subsets. Each head combines local and global information, using either the geometric or…

Computer Vision and Pattern Recognition · Computer Science 2024-09-27 Hanz Cuevas-Velasquez , Antonio Javier Gallego , Robert B. Fisher

Deep neural networks, especially transformer-based architectures, have achieved remarkable success in semantic segmentation for environmental perception. However, existing models process video frames independently, thus failing to leverage…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Serin Varghese , Kevin Ross , Fabian Hueger , Kira Maag

In this paper, we focus on exploring effective methods for faster and accurate semantic segmentation. A common practice to improve the performance is to attain high-resolution feature maps with strong semantic representation. Two strategies…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Xiangtai Li , Jiangning Zhang , Yibo Yang , Guangliang Cheng , Kuiyuan Yang , Yunhai Tong , Dacheng Tao

Accurate lumbar spine segmentation is crucial for diagnosing spinal disorders. Existing methods typically use coarse-grained segmentation strategies that lack the fine detail needed for precise diagnosis. Additionally, their reliance on…

Computer Vision and Pattern Recognition · Computer Science 2026-04-24 Sheng Lian , Jianlong Cai , Dengfeng Pan , Guang-Yong Chen , Hao Xu , Fan Zhang , Guodong Fan , Shuo Li

In recent years, traffic flow prediction has played a crucial role in the management of intelligent transportation systems. However, traditional prediction methods are often limited by static spatial modeling, making it difficult to…

Machine Learning · Computer Science 2025-01-09 Mei Wu , Wenchao Weng , Jun Li , Yiqian Lin , Jing Chen , Dewen Seng

In this paper, we focus on the challenging multicategory instance segmentation problem in remote sensing images (RSIs), which aims at predicting the categories of all instances and localizing them with pixel-level masks. Although many…

Computer Vision and Pattern Recognition · Computer Science 2021-07-27 Tianyang Zhang , Xiangrong Zhang , Peng Zhu , Xu Tang , Chen Li , Licheng Jiao , Huiyu Zhou

Time series forecasting is an important problem across many domains, playing a crucial role in multiple real-world applications. In this paper, we propose a forecasting architecture that combines deep autoregressive models with a Spectral…

Machine Learning · Statistics 2021-12-28 Fernando Moreno-Pino , Pablo M. Olmos , Antonio Artés-Rodríguez

Spiking Neural Networks (SNNs) are emerging as a promising alternative to Artificial Neural Networks (ANNs) due to their inherent energy efficiency. Owing to the inherent sparsity in spike generation within SNNs, the in-depth analysis and…

Neural and Evolutionary Computing · Computer Science 2025-02-06 Kairong Yu , Tianqing Zhang , Hongwei Wang , Qi Xu

The advancement of deep learning has driven notable progress in remote sensing semantic segmentation. Attention mechanisms, while enabling global modeling and utilizing contextual information, face challenges of high computational costs and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Yang Yang , Shunyi Zheng

Processing large point clouds is a challenging task. Therefore, the data is often downsampled to a smaller size such that it can be stored, transmitted and processed more efficiently without incurring significant performance degradation.…

Computer Vision and Pattern Recognition · Computer Science 2022-10-12 Yang Ye , Xiulong Yang , Shihao Ji

With the rapid development of measurement technology, LiDAR and depth cameras are widely used in the perception of the 3D environment. Recent learning based methods for robot perception most focus on the image or video, but deep learning…

Computer Vision and Pattern Recognition · Computer Science 2021-11-04 Guangming Wang , Muyao Chen , Hanwen Liu , Yehui Yang , Zhe Liu , Hesheng Wang

Large-scale point cloud semantic segmentation is an important task in 3D computer vision, which is widely applied in autonomous driving, robotics, and virtual reality. Current large-scale point cloud semantic segmentation methods usually…

Computer Vision and Pattern Recognition · Computer Science 2024-01-22 Ziyin Zeng , Yongyang Xu , Zhong Xie , Wei Tang , Jie Wan , Weichao Wu

Traffic forecasting requires modeling complex temporal dynamics and long-range spatial dependencies over large sensor networks. Existing methods typically face a trade-off between expressiveness and efficiency: Transformer-based models…

Machine Learning · Computer Science 2026-04-16 Xinjin Li , Jinghan Cao , Mengyue Wang , Yue Wu , Longxiang Yan , Yeyang Zhou , Ziqi Sha , Yu Ma

Convolutional Neural Networks (CNNs) have performed extremely well on data represented by regularly arranged grids such as images. However, directly leveraging the classic convolution kernels or parameter sharing mechanisms on sparse 3D…

Computer Vision and Pattern Recognition · Computer Science 2019-09-30 Mingtao Feng , Liang Zhang , Xuefei Lin , Syed Zulqarnain Gilani , Ajmal Mian

Recent advancements in self-supervised learning in the point cloud domain have demonstrated significant potential. However, these methods often suffer from drawbacks, including lengthy pre-training time, the necessity of reconstruction in…

Computer Vision and Pattern Recognition · Computer Science 2025-02-11 Ayumu Saito , Prachi Kudeshia , Jiju Poovvancheri

Unsupervised online 3D instance segmentation is a fundamental yet challenging task, as it requires maintaining consistent object identities across LiDAR scans without relying on annotated training data. Existing methods, such as UNIT, have…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Yifan Zhang , Wei Zhang , Chuangxin He , Zhonghua Miao , Junhui Hou

Point cloud videos capture dynamic 3D motion while reducing the effects of lighting and viewpoint variations, making them highly effective for recognizing subtle and continuous human actions. Although Selective State Space Models (SSMs)…

Computer Vision and Pattern Recognition · Computer Science 2025-08-21 Peiming Li , Ziyi Wang , Yulin Yuan , Hong Liu , Xiangming Meng , Junsong Yuan , Mengyuan Liu

Manually annotating complex scene point cloud datasets is both costly and error-prone. To reduce the reliance on labeled data, a new model called SnapshotNet is proposed as a self-supervised feature learning approach, which directly works…

Computer Vision and Pattern Recognition · Computer Science 2022-01-14 Xingye Li , Ling Zhang , Zhigang Zhu