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In deep learning, optimization plays a vital role. By focusing on image classification, this work investigates the pros and cons of the widely used optimizers, and proposes a new optimizer: Perturbated Unit Gradient Descent (PUGD) algorithm…

机器学习 · 计算机科学 2022-11-10 Ching-Hsun. Tseng , Liu-Hsueh. Cheng , Shin-Jye. Lee , Xiaojun Zeng

Detecting pedestrians is a crucial task in autonomous driving systems to ensure the safety of drivers and pedestrians. The technologies involved in these algorithms must be precise and reliable, regardless of environment conditions. Relying…

计算机视觉与模式识别 · 计算机科学 2021-05-05 Òscar Lorente , Josep R. Casas , Santiago Royo , Ivan Caminal

Most existing point cloud completion methods are only applicable to partial point clouds without any noises and outliers, which does not always hold in practice. We propose in this paper an end-to-end network, named CS-Net, to complete the…

计算机视觉与模式识别 · 计算机科学 2022-03-21 Changfeng Ma , Yang Yang , Jie Guo , Chongjun Wang , Yanwen Guo

In this paper, we introduce the adaptive Wasserstein curvature denoising (AWCD), an original processing approach for point cloud data. By collecting curvatures information from Wasserstein distance, AWCD consider more precise structures of…

机器学习 · 计算机科学 2021-05-12 Yihao Luo , Ailing Yang , Fupeng Sun , Huafei Sun

Reconstructing a high-resolution 3D model of an object is a challenging task in computer vision. Designing scalable and light-weight architectures is crucial while addressing this problem. Existing point-cloud based reconstruction…

计算机视觉与模式识别 · 计算机科学 2019-01-28 Priyanka Mandikal , R. Venkatesh Babu

Implicit neural networks have emerged as a crucial technology in 3D surface reconstruction. To reconstruct continuous surfaces from discrete point clouds, encoding the input points into regular grid features (plane or volume) has been…

计算机视觉与模式识别 · 计算机科学 2024-01-05 Shengtao Li , Ge Gao , Yudong Liu , Yu-Shen Liu , Ming Gu

LiDAR (Light Detection and Ranging) has become an essential part of the remote sensing toolbox used for biosphere monitoring. In particular, LiDAR provides the opportunity to map forest leaf area with unprecedented accuracy, while leaf area…

计算机视觉与模式识别 · 计算机科学 2024-01-11 Yuchen Bai , Jean-Baptiste Durand , Grégoire Vincent , Florence Forbes

Point cloud, an efficient 3D object representation, has become popular with the development of depth sensing and 3D laser scanning techniques. It has attracted attention in various applications such as 3D tele-presence, navigation for…

计算机视觉与模式识别 · 计算机科学 2018-06-11 Gusi Te , Wei Hu , Zongming Guo , Amin Zheng

Point clouds have been recognized as a crucial data structure for 3D content and are essential in a number of applications such as virtual and mixed reality, autonomous driving, cultural heritage, etc. In this paper, we propose a set of…

计算机视觉与模式识别 · 计算机科学 2020-06-25 Maurice Quach , Giuseppe Valenzise , Frederic Dufaux

Point cloud processing has gained significant attention due to its critical role in applications such as autonomous driving and 3D object recognition. However, deploying high-performance models like Point Transformer V3 in…

计算机视觉与模式识别 · 计算机科学 2025-05-14 Luu Tung Hai , Thinh D. Le , Zhicheng Ding , Qing Tian , Truong-Son Hy

The increasing demand for accurate representations of 3D scenes, combined with immersive technologies has led point clouds to extensive popularity. However, quality point clouds require a large amount of data and therefore the need for…

图像与视频处理 · 电气工程与系统科学 2023-07-21 Eleftheria Psatha , Dimitrios Laskos , Gerasimos Arvanitis , Konstantinos Moustakas

Diffusion models are rapidly redefining 3D anomaly detection in point cloud data. As 3D sensing becomes integral to modern manufacturing, reliable anomaly detection is essential for high-throughput quality assurance and process control. Yet…

计算机视觉与模式识别 · 计算机科学 2026-05-08 Pranav A , Shashank B , Pranav Siddappa , Dominik Seuss , Minal Moharir , Subramanya KN

Point clouds have shown significant potential in various domains, including Simultaneous Localization and Mapping (SLAM). However, existing approaches either rely on dense point clouds to achieve high localization accuracy or use…

计算机视觉与模式识别 · 计算机科学 2023-12-06 Xiaze Zhang , Ziheng Ding , Qi Jing , Yuejie Zhang , Wenchao Ding , Rui Feng

Lidar sensors are frequently used in environment perception for autonomous vehicles and mobile robotics to complement camera, radar, and ultrasonic sensors. Adverse weather conditions are significantly impacting the performance of…

计算机视觉与模式识别 · 计算机科学 2020-02-13 Robin Heinzler , Florian Piewak , Philipp Schindler , Wilhelm Stork

This paper proposes EyeNet, a novel semantic segmentation network for point clouds that addresses the critical yet often overlooked parameter of coverage area size. Inspired by human peripheral vision, EyeNet overcomes the limitations of…

计算机视觉与模式识别 · 计算机科学 2023-06-13 Sunghwan Yoo , Yeongjeong Jeong , Maryam Jameela , Gunho Sohn

In healthcare, accurately classifying medical images is vital, but conventional methods often hinge on medical data with a consistent grid structure, which may restrict their overall performance. Recent medical research has been focused on…

计算机视觉与模式识别 · 计算机科学 2023-06-06 Kishore Babu Nampalle , Pradeep Singh , Vivek Narayan Uppala , Sumit Gangwar , Rajesh Singh Negi , Balasubramanian Raman

Deep learning techniques for point cloud data have demonstrated great potentials in solving classical problems in 3D computer vision such as 3D object classification and segmentation. Several recent 3D object classification methods have…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Mikaela Angelina Uy , Quang-Hieu Pham , Binh-Son Hua , Duc Thanh Nguyen , Sai-Kit Yeung

Convolutional neural networks (CNNs) have become increasingly popular for solving a variety of computer vision tasks, ranging from image classification to image segmentation. Recently, autonomous vehicles have created a demand for depth…

计算机视觉与模式识别 · 计算机科学 2018-11-28 Paden Tomasello , Sammy Sidhu , Anting Shen , Matthew W. Moskewicz , Nobie Redmon , Gayatri Joshi , Romi Phadte , Paras Jain , Forrest Iandola

This paper presents a new method, Diffusing Winding Gradients (DWG), for reconstructing watertight 3D surfaces from unoriented point clouds. Our method exploits the alignment between the gradients of the generalized winding number (GWN)…

图形学 · 计算机科学 2024-10-10 Weizhou Liu , Jiaze Li , Xuhui Chen , Fei Hou , Shiqing Xin , Xingce Wang , Zhongke Wu , Chen Qian , Ying He

Object point cloud classification has drawn great research attention since the release of benchmarking datasets, such as the ModelNet and the ShapeNet. These benchmarks assume point clouds covering complete surfaces of object instances, for…

计算机视觉与模式识别 · 计算机科学 2022-03-01 Zelin Xu , Ke Chen , Kangjun Liu , Changxing Ding , Yaowei Wang , Kui Jia