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Due to the over-parameterization of neural networks, many model compression methods based on pruning and quantization have emerged. They are remarkable in reducing the size, parameter number, and computational complexity of the model.…

计算机视觉与模式识别 · 计算机科学 2023-06-05 Yun Chu , Pu Li , Yong Bai , Zhuhua Hu , Yongqing Chen , Jiafeng Lu

Non-uniformed 3D sparse data, e.g., point clouds or voxels in different spatial positions, make contribution to the task of 3D object detection in different ways. Existing basic components in sparse convolutional networks (Sparse CNNs)…

计算机视觉与模式识别 · 计算机科学 2022-04-27 Yukang Chen , Yanwei Li , Xiangyu Zhang , Jian Sun , Jiaya Jia

3D Gaussian Splatting (GS) enables fast and high-quality scene reconstruction, but it lacks an object-consistent and semantically aware structure. We propose Split&Splat, a framework for panoptic scene reconstruction using 3DGS. Our…

图形学 · 计算机科学 2026-02-04 Leonardo Monchieri , Elena Camuffo , Francesco Barbato , Pietro Zanuttigh , Simone Milani

Neural implicit representations are drawing a lot of attention from the robotics community recently, as they are expressive, continuous and compact. However, city-scale continual implicit dense mapping based on sparse LiDAR input is still…

计算机视觉与模式识别 · 计算机科学 2023-04-13 Yongliang Shi , Runyi Yang , Pengfei Li , Zirui Wu , Hao Zhao , Guyue Zhou

LiDAR-based 3D object detection plays an essential role in autonomous driving. Existing high-performing 3D object detectors usually build dense feature maps in the backbone network and prediction head. However, the computational costs…

计算机视觉与模式识别 · 计算机科学 2024-09-24 Gang Zhang , Junnan Chen , Guohuan Gao , Jianmin Li , Si Liu , Xiaolin Hu

High-dimensional, heterogeneous data with complex feature interactions pose significant challenges for traditional predictive modeling approaches. While Projection to Latent Structures (PLS) remains a popular technique, it struggles to…

机器学习 · 计算机科学 2025-10-21 Farwa Abbas , Hussain Ahmad , Claudia Szabo

Single Image Super-Resolution (SISR) is a crucial task in low-level computer vision, aiming to reconstruct high-resolution images from low-resolution counterparts. Conventional attention mechanisms have significantly improved SISR…

图像与视频处理 · 电气工程与系统科学 2024-05-14 Cheng Wan , Hongyuan Yu , Zhiqi Li , Yihang Chen , Yajun Zou , Yuqing Liu , Xuanwu Yin , Kunlong Zuo

The ability to detect and segment moving objects in a scene is essential for building consistent maps, making future state predictions, avoiding collisions, and planning. In this paper, we address the problem of moving object segmentation…

机器人学 · 计算机科学 2021-07-15 Xieyuanli Chen , Shijie Li , Benedikt Mersch , Louis Wiesmann , Jürgen Gall , Jens Behley , Cyrill Stachniss

Multimodal 3D object detection based on deep neural networks has indeed made significant progress. However, it still faces challenges due to the misalignment of scale and spatial information between features extracted from 2D images and…

计算机视觉与模式识别 · 计算机科学 2025-04-08 Bonan Ding , Jin Xie , Jing Nie , Jiale Cao

At the heart of all automated driving systems is the ability to sense the surroundings, e.g., through semantic segmentation of LiDAR sequences, which experienced a remarkable progress due to the release of large datasets such as…

计算机视觉与模式识别 · 计算机科学 2022-01-21 Kunyu Peng , Juncong Fei , Kailun Yang , Alina Roitberg , Jiaming Zhang , Frank Bieder , Philipp Heidenreich , Christoph Stiller , Rainer Stiefelhagen

Point cloud datasets for perception tasks in the context of autonomous driving often rely on high resolution 64-layer Light Detection and Ranging (LIDAR) scanners. They are expensive to deploy on real-world autonomous driving sensor…

计算机视觉与模式识别 · 计算机科学 2020-05-28 Leonardo Gigli , B Ravi Kiran , Thomas Paul , Andres Serna , Nagarjuna Vemuri , Beatriz Marcotegui , Santiago Velasco-Forero

In LiDAR-based 3D object detection for autonomous driving, the ratio of the object size to input scene size is significantly smaller compared to 2D detection cases. Overlooking this difference, many 3D detectors directly follow the common…

计算机视觉与模式识别 · 计算机科学 2021-12-14 Lue Fan , Ziqi Pang , Tianyuan Zhang , Yu-Xiong Wang , Hang Zhao , Feng Wang , Naiyan Wang , Zhaoxiang Zhang

We study the problem of single-image 3D object reconstruction. Recent works have diverged into two directions: regression-based modeling and generative modeling. Regression methods efficiently infer visible surfaces, but struggle with…

计算机视觉与模式识别 · 计算机科学 2025-01-09 Zixuan Huang , Mark Boss , Aaryaman Vasishta , James M. Rehg , Varun Jampani

Current LiDAR-only 3D detection methods inevitably suffer from the sparsity of point clouds. Many multi-modal methods are proposed to alleviate this issue, while different representations of images and point clouds make it difficult to fuse…

计算机视觉与模式识别 · 计算机科学 2022-07-05 Xiaopei Wu , Liang Peng , Honghui Yang , Liang Xie , Chenxi Huang , Chengqi Deng , Haifeng Liu , Deng Cai

LiDAR point-cloud segmentation is an important problem for many applications. For large-scale point cloud segmentation, the \textit{de facto} method is to project a 3D point cloud to get a 2D LiDAR image and use convolutions to process it.…

计算机视觉与模式识别 · 计算机科学 2021-04-14 Chenfeng Xu , Bichen Wu , Zining Wang , Wei Zhan , Peter Vajda , Kurt Keutzer , Masayoshi Tomizuka

Accurate land cover segmentation of spectral images is challenging and has drawn widespread attention in remote sensing due to its inherent complexity. Although significant efforts have been made for developing a variety of methods, most of…

图像与视频处理 · 电气工程与系统科学 2021-11-30 Carlos Hinojosa , Esteban Vera , Henry Arguello

We present a novel framework, Spatial Pyramid Attention Network (SPAN) for detection and localization of multiple types of image manipulations. The proposed architecture efficiently and effectively models the relationship between image…

计算机视觉与模式识别 · 计算机科学 2021-01-15 Xuefeng Hu , Zhihan Zhang , Zhenye Jiang , Syomantak Chaudhuri , Zhenheng Yang , Ram Nevatia

Upsampling LiDAR point clouds in autonomous driving scenarios remains a significant challenge due to the inherent sparsity and complex 3D structures of the data. Recent studies have attempted to address this problem by converting the…

计算机视觉与模式识别 · 计算机科学 2025-07-24 Chuang Chen , Xiaolin Qin , Jing Hu , Wenyi Ge

Lidar became an important component of the perception systems in autonomous driving. But challenges of training data acquisition and annotation made emphasized the role of the sensor to sensor domain adaptation. In this work, we address the…

计算机视觉与模式识别 · 计算机科学 2023-02-01 Artem Savkin , Yida Wang , Sebastian Wirkert , Nassir Navab , Federico Tombar

3D object detection from LiDAR data for autonomous driving has been making remarkable strides in recent years. Among the state-of-the-art methodologies, encoding point clouds into a bird's eye view (BEV) has been demonstrated to be both…

计算机视觉与模式识别 · 计算机科学 2022-08-09 Yantao Lu , Xuetao Hao , Yilan Li , Weiheng Chai , Shiqi Sun , Senem Velipasalar