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In this paper, we propose a novel variable rate deep compression architecture that operates on raw 3D point cloud data. The majority of learning-based point cloud compression methods work on a downsampled representation of the data.…

计算机视觉与模式识别 · 计算机科学 2022-05-17 Md Ahmed Al Muzaddid , William J. Beksi

Point clouds provide a flexible geometric representation suitable for countless applications in computer graphics; they also comprise the raw output of most 3D data acquisition devices. While hand-designed features on point clouds have long…

计算机视觉与模式识别 · 计算机科学 2019-06-12 Yue Wang , Yongbin Sun , Ziwei Liu , Sanjay E. Sarma , Michael M. Bronstein , Justin M. Solomon

Recent advancements in graph-based analysis and solutions of instantly decodable network coding (IDNC) trigger the interest to extend them to more complicated opportunistic network coding (ONC) scenarios, with limited increase in…

Most of the semantic segmentation approaches have been developed for single image segmentation, and hence, video sequences are currently segmented by processing each frame of the video sequence separately. The disadvantage of this is that…

计算机视觉与模式识别 · 计算机科学 2024-10-30 Andreas Pfeuffer , Karina Schulz , Klaus Dietmayer

Convolutional Neural Networks (CNNs) have become indispensable for solving machine learning tasks in speech recognition, computer vision, and other areas that involve high-dimensional data. A CNN filters the input feature using a network…

机器学习 · 计算机科学 2020-02-13 Jonathan Ephrath , Moshe Eliasof , Lars Ruthotto , Eldad Haber , Eran Treister

The ability to automatically detect certain types of cells or cellular subunits in microscopy images is of significant interest to a wide range of biomedical research and clinical practices. Cell detection methods have evolved from…

计算机视觉与模式识别 · 计算机科学 2018-02-22 Yao Xue , Nilanjan Ray

In this paper, we propose a partition-masked Convolution Neural Network (CNN) to achieve compressed-video enhancement for the state-of-the-art coding standard, High Efficiency Video Coding (HECV). More precisely, our method utilizes the…

多媒体 · 计算机科学 2019-12-30 Xiaoyi He , Qiang Hu , Xintong Han , Xiaoyun Zhang , Chongyang Zhang , Weiyao Lin

Point cloud segmentation is the foundation of 3D environmental perception for modern intelligent systems. To solve this problem and image segmentation, conditional random fields (CRFs) are usually formulated as discrete models in label…

计算机视觉与模式识别 · 计算机科学 2021-10-13 Fei Yang , Franck Davoine , Huan Wang , Zhong Jin

Semantic maps are increasingly utilized in areas such as robotics, autonomous systems, and extended reality, motivating the investigation of efficient compression methods that preserve structured semantic information. This paper studies…

图像与视频处理 · 电气工程与系统科学 2026-03-30 Runyu Yang , Junqi Liao , Hyomin Choi , Fabien Racapé , Ivan V. Bajić

Designing effective graph neural networks (GNNs) with message passing has two fundamental challenges, i.e., determining optimal message-passing pathways and designing local aggregators. Previous methods of designing optimal pathways are…

机器学习 · 计算机科学 2024-11-01 Junshu Sun , Shuhui Wang , Chenxue Yang , Qingming Huang

Tensor decomposition methods are widely used for model compression and fast inference in convolutional neural networks (CNNs). Although many decompositions are conceivable, only CP decomposition and a few others have been applied in…

机器学习 · 计算机科学 2019-11-28 Kohei Hayashi , Taiki Yamaguchi , Yohei Sugawara , Shin-ichi Maeda

Efficient point cloud compression is essential for applications like virtual and mixed reality, autonomous driving, and cultural heritage. This paper proposes a deep learning-based inter-frame encoding scheme for dynamic point cloud…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Anique Akhtar , Zhu Li , Geert Van der Auwera

3D point cloud interpretation is a challenging task due to the randomness and sparsity of the component points. Many of the recently proposed methods like PointNet and PointCNN have been focusing on learning shape descriptions from point…

计算机视觉与模式识别 · 计算机科学 2021-07-28 Zhaoyu Su , Pin Siang Tan , Junkang Chow , Jimmy Wu , Yehur Cheong , Yu-Hsing Wang

Point clouds are crucial for capturing three-dimensional data but often suffer from incompleteness due to limitations such as resolution and occlusion. Traditional methods typically rely on point-based approaches within discriminative…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Guoqing Zhang , Jian Liu

In recent years, Convolutional Neural Networks (CNN) have proven to be efficient analysis tools for processing point clouds, e.g., for reconstruction, segmentation and classification. In this paper, we focus on the classification of edges…

In this paper, we propose a fast fully convolutional neural network (FCNN) for crowd segmentation. By replacing the fully connected layers in CNN with 1 by 1 convolution kernels, FCNN takes whole images as inputs and directly outputs…

计算机视觉与模式识别 · 计算机科学 2014-11-18 Kai Kang , Xiaogang Wang

We propose an efficient and straightforward method for compressing deep convolutional neural networks (CNNs) that uses basis filters to represent the convolutional layers, and optimizes the performance of the compressed network directly in…

计算机视觉与模式识别 · 计算机科学 2021-05-24 Muhammad Tayyab , Fahad Ahmad Khan , Abhijit Mahalanobis

We present an efficient convolution kernel for Convolutional Neural Networks (CNNs) on unstructured grids using parameterized differential operators while focusing on spherical signals such as panorama images or planetary signals. To this…

计算机视觉与模式识别 · 计算机科学 2019-01-09 Chiyu "Max" Jiang , Jingwei Huang , Karthik Kashinath , Prabhat , Philip Marcus , Matthias Niessner

In this paper we review the mathematical foundations of convolutional neural nets (CNNs) with the goals of: i) highlighting connections with techniques from statistics, signal processing, linear algebra, differential equations, and…

机器学习 · 计算机科学 2021-07-08 Shengli Jiang , Victor M. Zavala

We investigate video classification via a two-stream convolutional neural network (CNN) design that directly ingests information extracted from compressed video bitstreams. Our approach begins with the observation that all modern video…

计算机视觉与模式识别 · 计算机科学 2017-12-21 Aaron Chadha , Alhabib Abbas , Yiannis Andreopoulos