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Traffic accident forecasting is a significant problem for transportation management and public safety. However, this problem is challenging due to the spatial heterogeneity of the environment and the sparsity of accidents in space and time.…

机器学习 · 计算机科学 2022-03-08 Bang An , Amin Vahedian , Xun Zhou , W. Nick Street , Yanhua Li

Semantic segmentation of LiDAR point clouds has been widely studied in recent years, with most existing methods focusing on tackling this task using a single scan of the environment. However, leveraging the temporal stream of observations…

计算机视觉与模式识别 · 计算机科学 2023-11-06 Enxu Li , Sergio Casas , Raquel Urtasun

We introduce a learning-based approach for room navigation using semantic maps. Our proposed architecture learns to predict top-down belief maps of regions that lie beyond the agent's field of view while modeling architectural and stylistic…

计算机视觉与模式识别 · 计算机科学 2020-07-21 Medhini Narasimhan , Erik Wijmans , Xinlei Chen , Trevor Darrell , Dhruv Batra , Devi Parikh , Amanpreet Singh

We explore the use of convolutional neural networks for the semantic classification of remote sensing scenes. Two recently proposed architectures, CaffeNet and GoogLeNet, are adopted, with three different learning modalities. Besides…

计算机视觉与模式识别 · 计算机科学 2015-08-04 Marco Castelluccio , Giovanni Poggi , Carlo Sansone , Luisa Verdoliva

Weakly supervised semantic segmentation (WSSS) aims to produce pixel-wise class predictions with only image-level labels for training. To this end, previous methods adopt the common pipeline: they generate pseudo masks from class activation…

计算机视觉与模式识别 · 计算机科学 2022-08-09 Sungpil Kho , Pilhyeon Lee , Wonyoung Lee , Minsong Ki , Hyeran Byun

Radar-based perception has gained increasing attention in autonomous driving, yet the inherent sparsity of radars poses challenges. Radar raw data often contains excessive noise, whereas radar point clouds retain only limited information.…

计算机视觉与模式识别 · 计算机科学 2025-07-16 Jialong Wu , Mirko Meuter , Markus Schoeler , Matthias Rottmann

Many works in the recent literature introduce semantic mapping methods that use CNNs (Convolutional Neural Networks) to recognize semantic properties in images. The types of properties (eg.: room size, place category, and objects) and their…

计算机视觉与模式识别 · 计算机科学 2022-03-22 Ygor C. N. Sousa , Hansenclever F. Bassani

Semantic segmentation of road elements in 2D images is a crucial task in the recognition of some static objects such as lane lines and free space. In this paper, we propose DHSNet,which extracts the objects features with a end-to-end…

计算机视觉与模式识别 · 计算机科学 2024-07-11 Hongyu Jin

Previous studies have shown the great potential of capsule networks for the spatial contextual feature extraction from {hyperspectral images (HSIs)}. However, the sampling locations of the convolutional kernels of capsules are fixed and…

计算机视觉与模式识别 · 计算机科学 2021-04-27 Jinping Wang , Xiaojun Tan , Jianhuang Lai , Jun Li , Canqun Xiang

In this paper we developed a hierarchical network model, called Hierarchical Prediction Network (HPNet), to understand how spatiotemporal memories might be learned and encoded in the recurrent circuits in the visual cortical hierarchy for…

神经与进化计算 · 计算机科学 2021-10-04 Jielin Qiu , Ge Huang , Tai Sing Lee

Currently, low-resolution image recognition is confronted with a significant challenge in the field of intelligent traffic perception. Compared to high-resolution images, low-resolution images suffer from small size, low quality, and lack…

计算机视觉与模式识别 · 计算机科学 2023-09-29 Zongcai Tan , Zhenhai Gao

Typical end-to-end formulations for learning robotic navigation involve predicting a small set of steering command actions (e.g., step forward, turn left, turn right, etc.) from images of the current state (e.g., a bird's-eye view of a SLAM…

机器人学 · 计算机科学 2020-10-13 Jimmy Wu , Xingyuan Sun , Andy Zeng , Shuran Song , Johnny Lee , Szymon Rusinkiewicz , Thomas Funkhouser

Representations are crucial for a robot to learn effective navigation policies. Recent work has shown that mid-level perceptual abstractions, such as depth estimates or 2D semantic segmentation, lead to more effective policies when provided…

机器人学 · 计算机科学 2022-05-09 Zachary Ravichandran , Lisa Peng , Nathan Hughes , J. Daniel Griffith , Luca Carlone

For autonomous agents to successfully operate in the real world, anticipation of future events and states of their environment is a key competence. This problem can be formalized as a sequence prediction problem, where a number of…

计算机视觉与模式识别 · 计算机科学 2018-10-01 Apratim Bhattacharyya , Mario Fritz , Bernt Schiele

Current Deep Learning methods for environment segmentation and velocity estimation rely on Convolutional Recurrent Neural Networks to exploit spatio-temporal relationships within obtained sensor data. These approaches derive scene dynamics…

计算机视觉与模式识别 · 计算机科学 2023-06-21 Marco Braun , Moritz Luszek , Mirko Meuter , Dominic Spata , Kevin Kollek , Anton Kummert

In the past decade, convolutional neural networks (CNNs) have shown prominence for semantic segmentation. Although CNN models have very impressive performance, the ability to capture global representation is still insufficient, which…

计算机视觉与模式识别 · 计算机科学 2023-02-22 Guoan Xu , Juncheng Li , Guangwei Gao , Huimin Lu , Jian Yang , Dong Yue

Accurate and fast scene understanding is one of the challenging task for autonomous driving, which requires to take full advantage of LiDAR point clouds for semantic segmentation. In this paper, we present a \textbf{concise} and…

计算机视觉与模式识别 · 计算机科学 2022-07-27 Hui-Xian Cheng , Xian-Feng Han , Guo-Qiang Xiao

Semantic segmentation with Convolutional Neural Networks is a memory-intensive task due to the high spatial resolution of feature maps and output predictions. In this paper, we present Quadtree Generating Networks (QGNs), a novel approach…

计算机视觉与模式识别 · 计算机科学 2019-09-19 Kashyap Chitta , Jose M. Alvarez , Martial Hebert

Semantic road region segmentation is a high-level task, which paves the way towards road scene understanding. This paper presents a residual network trained for semantic road segmentation. Firstly, we represent the projections of road…

计算机视觉与模式识别 · 计算机科学 2019-10-30 Rui Fan , Yuan Wang , Lei Qiao , Ruiwen Yao , Peng Han , Weidong Zhang , Ioannis Pitas , Ming Liu

A map, as crucial information for downstream applications of an autonomous driving system, is usually represented in lanelines or centerlines. However, existing literature on map learning primarily focuses on either detecting geometry-based…

计算机视觉与模式识别 · 计算机科学 2026-01-13 Tianyu Li , Peijin Jia , Bangjun Wang , Li Chen , Kun Jiang , Junchi Yan , Hongyang Li