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The growing demand for high-quality point cloud transmission over wireless networks presents significant challenges, primarily due to the large data sizes and the need for efficient encoding techniques. In response to these challenges, we…

Multimedia · Computer Science 2024-08-12 Cixiao Zhang , Mufan Liu , Wenjie Huang , Yin Xu , Yiling Xu , Dazhi He

The irregular domain and lack of ordering make it challenging to design deep neural networks for point cloud processing. This paper presents a novel framework named Point Cloud Transformer(PCT) for point cloud learning. PCT is based on…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 Meng-Hao Guo , Jun-Xiong Cai , Zheng-Ning Liu , Tai-Jiang Mu , Ralph R. Martin , Shi-Min Hu

Analyzing complex scenes with Deep Neural Networks is a challenging task, particularly when images contain multiple objects that partially occlude each other. Existing approaches to image analysis mostly process objects independently and do…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Xiaoding Yuan , Adam Kortylewski , Yihong Sun , Alan Yuille

Contemporary deep neural networks offer state-of-the-art results when applied to visual reasoning, e.g., in the context of 3D point cloud data. Point clouds are important datatype for precise modeling of three-dimensional environments, but…

Machine Learning · Computer Science 2022-05-23 Maciej Zamorski , Michał Stypułkowski , Konrad Karanowski , Tomasz Trzciński , Maciej Zięba

Federated learning is a prime candidate for distributed machine learning at the network edge due to the low communication complexity and privacy protection among other attractive properties. However, existing algorithms face issues with…

Machine Learning · Computer Science 2022-03-25 Hung T. Nguyen , H. Vincent Poor , Mung Chiang

In this paper, we propose a high-efficiency deep joint source-channel coding (JSCC) method for video transmission based on conditional coding with asymmetric context. The conditional coding-based neural video compression requires to predict…

Image and Video Processing · Electrical Eng. & Systems 2026-01-13 Xuechen Chen , Junting Li , Chuang Chen , Hairong Lin , Yishen Li

To extend the context length of Transformer-based large language models (LLMs) and improve comprehension capabilities, we often face limitations due to computational resources and bounded memory storage capacity. This work introduces a…

Computation and Language · Computer Science 2024-06-11 Chensen Huang , Guibo Zhu , Xuepeng Wang , Yifei Luo , Guojing Ge , Haoran Chen , Dong Yi , Jinqiao Wang

Large language models (LLMs) have triggered a new stream of research focusing on compressing the context length to reduce the computational cost while ensuring the retention of helpful information for LLMs to answer the given question.…

Computation and Language · Computer Science 2024-12-20 Barys Liskavets , Maxim Ushakov , Shuvendu Roy , Mark Klibanov , Ali Etemad , Shane Luke

Recent advancements in point cloud compression have primarily emphasized geometry compression while comparatively fewer efforts have been dedicated to attribute compression. This study introduces an end-to-end learned dynamic lossy…

Image and Video Processing · Electrical Eng. & Systems 2024-08-21 Dat Thanh Nguyen , Daniel Zieger , Marc Stamminger , Andre Kaup

Recent advances in learning-based image compression typically come at the cost of high complexity. Designing computationally efficient architectures remains an open challenge. In this paper, we empirically investigate the impact of…

Image and Video Processing · Electrical Eng. & Systems 2024-06-18 Yichi Zhang , Zhihao Duan , Fengqing Zhu

LiDARs are widely used in autonomous robots due to their ability to provide accurate environment structural information. However, the large size of point clouds poses challenges in terms of data storage and transmission. In this paper, we…

Robotics · Computer Science 2025-02-11 Yuhao Cao , Yu Wang , Haoyao Chen

This work extends our prior work on the distributed nonlinear model predictive control (NMPC) for navigating a robot fleet following a certain flocking behavior in unknown obstructed environments with a more realistic local obstacle…

Robotics · Computer Science 2025-07-15 Nuthasith Gerdpratoom , Kaoru Yamamoto

With the rise of large-scale models trained on broad data, in-context learning has become a new learning paradigm that has demonstrated significant potential in natural language processing and computer vision tasks. Meanwhile, in-context…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Zhongbin Fang , Xiangtai Li , Xia Li , Joachim M. Buhmann , Chen Change Loy , Mengyuan Liu

3D model generation from single 2D RGB images is a challenging and actively researched computer vision task. Various techniques using conventional network architectures have been proposed for the same. However, the body of research work is…

Computer Vision and Pattern Recognition · Computer Science 2021-06-30 Abdul Mueed Hafiz , Rouf Ul Alam Bhat , Shabir Ahmad Parah , M. Hassaballah

Point cloud is a promising 3D representation for volumetric streaming in emerging AR/VR applications. Despite recent advances in point cloud compression, decoding and rendering high-quality images from lossy compressed point clouds is still…

Computer Vision and Pattern Recognition · Computer Science 2024-09-26 Yueyu Hu , Ran Gong , Yao Wang

Video-based point cloud compression (V-PCC) converts the dynamic point cloud data into video sequences using traditional video codecs for efficient encoding. However, this lossy compression scheme introduces artifacts that degrade the color…

Computer Vision and Pattern Recognition · Computer Science 2024-12-20 Jingwei Bao , Yu Liu , Zeliang Li , Shuyuan Zhu , Siu-Kei Au Yeung

This paper presents a cross channel context model for latents in deep image compression. Generally, deep image compression is based on an autoencoder framework, which transforms the original image to latents at the encoder and recovers the…

Image and Video Processing · Electrical Eng. & Systems 2021-03-05 Changyue Ma , Zhao Wang , Ruling Liao , Yan Ye

We introduce a new approach for reconstruction and novel view synthesis of unbounded real-world scenes. In contrast to previous methods using either volumetric fields, grid-based models, or discrete point cloud proxies, we propose a hybrid…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Florian Hahlbohm , Linus Franke , Moritz Kappel , Susana Castillo , Martin Eisemann , Marc Stamminger , Marcus Magnor

Transform and entropy models are the two core components in deep image compression neural networks. Most existing learning-based image compression methods utilize convolutional-based transform, which lacks the ability to model long-range…

Image and Video Processing · Electrical Eng. & Systems 2023-09-20 Atefeh Khoshkhahtinat , Ali Zafari , Piyush M. Mehta , Mohammad Akyash , Hossein Kashiani , Nasser M. Nasrabadi

To better address challenging issues of the irregularity and inhomogeneity inherently present in 3D point clouds, researchers have been shifting their focus from the design of hand-craft point feature towards the learning of 3D point…

Computer Vision and Pattern Recognition · Computer Science 2022-11-21 Xiang Li , Mingyang Wang , Congcong Wen , Lingjing Wang , Nan Zhou , Yi Fang
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