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To encode point clouds containing both geometry and attributes, most learning-based compression schemes treat geometry and attribute coding separately, employing distinct encoders and decoders. This not only increases computational…

计算机视觉与模式识别 · 计算机科学 2025-05-23 Kai Hsiang Hsieh , Monyneath Yim , Jui Chiu Chiang

Efficient point cloud compression is fundamental to enable the deployment of virtual and mixed reality applications, since the number of points to code can range in the order of millions. In this paper, we present a novel data-driven…

计算机视觉与模式识别 · 计算机科学 2020-02-19 Maurice Quach , Giuseppe Valenzise , Frederic Dufaux

Point cloud is a prevalent 3D data representation format with significant application values in immersive media, autonomous driving, digital heritage protection, etc. However, the large data size of point clouds poses challenges to…

计算机视觉与模式识别 · 计算机科学 2026-02-10 Wei Gao , Wenxu Gao , Xingming Mu , Changhao Peng , Ge Li

With the fast growth of immersive video sequences, achieving seamless and high-quality compressed 3D content is even more critical. MPEG recently developed a video-based point cloud compression (V-PCC) standard for dynamic point cloud…

计算机视觉与模式识别 · 计算机科学 2022-08-18 Faranak Tohidi , Manoranjan Paul , Anwaar Ulhaq

Deep learning is increasingly being used to perform machine vision tasks such as classification, object detection, and segmentation on 3D point cloud data. However, deep learning inference is computationally expensive. The limited…

图像与视频处理 · 电气工程与系统科学 2023-08-14 Mateen Ulhaq , Ivan V. Bajić

In autonomous vehicles or robots, point clouds from LiDAR can provide accurate depth information of objects compared with 2D images, but they also suffer a large volume of data, which is inconvenient for data storage or transmission. In…

机器人学 · 计算机科学 2021-09-17 Sukai Wang , Jianhao Jiao , Peide Cai , Ming Liu

Point cloud compression (PCC) is a key enabler for various 3-D applications, owing to the universality of the point cloud format. Ideally, 3D point clouds endeavor to depict object/scene surfaces that are continuous. Practically, as a set…

图像与视频处理 · 电气工程与系统科学 2022-09-12 Jiahao Pang , Muhammad Asad Lodhi , Dong Tian

Point clouds have become increasingly vital across various applications thanks to their ability to realistically depict 3D objects and scenes. Nevertheless, effectively compressing unstructured, high-precision point cloud data remains a…

计算机视觉与模式识别 · 计算机科学 2024-05-21 Hongning Ruan , Yulin Shao , Qianqian Yang , Liang Zhao , Dusit Niyato

Point clouds have gained prominence across numerous applications due to their ability to accurately represent 3D objects and scenes. However, efficiently compressing unstructured, high-precision point cloud data remains a significant…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Hongning Ruan , Yulin Shao , Qianqian Yang , Liang Zhao , Zhaoyang Zhang , Dusit Niyato

With the growth of 3D applications and the rapid increase in sensor-collected 3D point cloud data, there is a rising demand for efficient compression algorithms. Most existing learning-based compression methods handle geometry and color…

计算机视觉与模式识别 · 计算机科学 2025-03-25 Tianxin Huang , Gim Hee Lee

The rapid growth of 3D point cloud data, driven by applications in autonomous driving, robotics, and immersive environments, has led to criticals demand for efficient compression and quality assessment techniques. Unlike traditional 2D…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Yiling Xu , Yujie Zhang , Shuting Xia , Kaifa Yang , He Huang , Ziyu Shan , Wenjie Huang , Qi Yang , Le Yang

Efficient point cloud coding has become increasingly critical for multiple applications such as virtual reality, autonomous driving, and digital twin systems, where rich and interactive 3D data representations may functionally make the…

图像与视频处理 · 电气工程与系统科学 2025-03-13 André F. R. Guarda , Nuno M. M. Rodrigues , Fernando Pereira

Cloud-edge collaboration enhances machine perception by combining the strengths of edge and cloud computing. Edge devices capture raw data (e.g., 3D point clouds) and extract salient features, which are sent to the cloud for deeper analysis…

图像与视频处理 · 电气工程与系统科学 2026-03-05 Chongzhen Tian , Hui Yuan , Pan Zhao , Chang Sun , Raouf Hamzaoui , Sam Kwong

High-efficient image compression is a critical requirement. In several scenarios where multiple modalities of data are captured by different sensors, the auxiliary information from other modalities are not fully leveraged by existing…

图像与视频处理 · 电气工程与系统科学 2024-12-17 Ziqun Li , Qi Zhang , Xiaofeng Huang , Zhao Wang , Siwei Ma , Wei Yan

With the development of the 3D data acquisition facilities, the increasing scale of acquired 3D point clouds poses a challenge to the existing data compression techniques. Although promising performance has been achieved in static point…

计算机视觉与模式识别 · 计算机科学 2022-04-26 Guangchi Fang , Qingyong Hu , Yiling Xu , Yulan Guo

In video-based dynamic point cloud compression (V-PCC), 3D point clouds are projected onto 2D images for compressing with the existing video codecs. However, the existing video codecs are originally designed for natural visual signals, and…

图像与视频处理 · 电气工程与系统科学 2021-03-12 Jian Xiong , Hao Gao , Miaohui Wang , Hongliang Li , King Ngi Ngan , Weisi Lin

Point cloud compression is essential to experience volumetric multimedia as it drastically reduces the required streaming data rates. Point attributes, specifically colors, extend the challenge of lossy compression beyond geometric…

计算机视觉与模式识别 · 计算机科学 2024-08-02 Michael Rudolph , Aron Riemenschneider , Amr Rizk

Colored point cloud becomes a fundamental representation in the realm of 3D vision. Effective Point Cloud Compression (PCC) is urgently needed due to huge amount of data. In this paper, we propose an end-to-end Deep Joint Geometry and…

多媒体 · 计算机科学 2025-02-26 Yun Zhang , Zixi Guo , Linwei Zhu , C. -C. Jay Kuo

Point cloud based 3D visual representation is becoming popular due to its ability to exhibit the real world in a more comprehensive and immersive way. However, under a limited network bandwidth, it is very challenging to communicate this…

图像与视频处理 · 电气工程与系统科学 2019-12-23 Hao Liu , Hui Yuan , Qi Liu , Junhui Hou , Ju Liu

Stable diffusion networks have emerged as a groundbreaking development for their ability to produce realistic and detailed visual content. This characteristic renders them ideal decoders, capable of producing high-quality and aesthetically…

计算机视觉与模式识别 · 计算机科学 2024-08-21 Kai Liu , Kang You , Pan Gao