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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…

Image and Video Processing · Electrical Eng. & Systems 2026-03-30 Runyu Yang , Junqi Liao , Hyomin Choi , Fabien Racapé , Ivan V. Bajić

In this study, we performed a preliminary mapping of Total Electron Content (TEC) over Ecuador using Global Positioning System (GPS) data. This process entails collecting and analyzing pseudorange observations from multiple GPS receivers…

Space Physics · Physics 2025-02-11 E. D. López , B. A. Ubillús , G. L. Guamán

DeepSeek-OCR shows that rendered text can be reconstructed from a small number of vision tokens, sparking excitement about using vision as a compression medium for long textual contexts. But this pipeline requires rendering token embeddings…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Ivan Yee Lee , Cheng Yang , Taylor Berg-Kirkpatrick

Earth observation satellites generate large amounts of real-time data for monitoring and managing time-critical events such as disaster relief missions. This presents a major challenge for satellite-to-ground communications operating under…

Networking and Internet Architecture · Computer Science 2025-03-19 Sheikh Salman Hassan , Loc X. Nguyen , Yan Kyaw Tun , Zhu Han , Choong Seon Hong

Coded/uncoded content placement in Mobile Edge Caching (MEC) has evolved as an efficient solution to meet the significant growth of global mobile data traffic by boosting the content diversity in the storage of caching nodes. To meet the…

Neural implicit mapping has emerged as a powerful paradigm for robotic navigation and scene understanding. However, real-world robotic deployment requires continual adaptation to changing environments under strict memory and computation…

Robotics · Computer Science 2026-05-29 Xunlan Zhou , Hongrui Zhao , Negar Mehr

As a novel 3D scene representation, semantic occupancy has gained much attention in autonomous driving. However, existing occupancy prediction methods mainly focus on designing better occupancy representations, such as tri-perspective view…

Computer Vision and Pattern Recognition · Computer Science 2024-10-16 Zhiwei Lin , Hongbo Jin , Yongtao Wang , Yufei Wei , Nan Dong

Earth observation (EO), aiming at monitoring the state of planet Earth using remote sensing data, is critical for improving our daily lives and living environment. With a growing number of satellites in orbit, an increasing number of…

Computer Vision and Pattern Recognition · Computer Science 2024-04-04 Zhitong Xiong , Fahong Zhang , Yi Wang , Yilei Shi , Xiao Xiang Zhu

In learning-based approaches to image compression, codecs are developed by optimizing a computational model to minimize a rate-distortion objective. Currently, the most effective learned image codecs take the form of an entropy-constrained…

Image and Video Processing · Electrical Eng. & Systems 2020-07-20 David Minnen , Saurabh Singh

Recently, more and more images are compressed and sent to the back-end devices for the machine analysis tasks~(\textit{e.g.,} object detection) instead of being purely watched by humans. However, most traditional or learned image codecs are…

Image and Video Processing · Electrical Eng. & Systems 2022-06-14 Guo Lu , Xingtong Ge , Tianxiong Zhong , Jing Geng , Qiang Hu

Earth observation offers new insight into anthropogenic changes to nature, and how these changes are effecting (and are effected by) the built environment and the real economy. With the global availability of medium-resolution (10-30m)…

Computer Vision and Pattern Recognition · Computer Science 2021-02-15 Lucas Kruitwagen

Recently, learned video compression has achieved exciting performance. Following the traditional hybrid prediction coding framework, most learned methods generally adopt the motion estimation motion compensation (MEMC) method to remove…

Image and Video Processing · Electrical Eng. & Systems 2023-10-20 Yiming Wang , Qian Huang , Bin Tang , Huashan Sun , Xing Li

Vision-language models (VLMs) have shown promise in earth observation (EO), yet they struggle with tasks that require grounding complex spatial reasoning in precise pixel-level visual representations. To address this problem, we introduce…

Computer Vision and Pattern Recognition · Computer Science 2026-03-20 Yan Shu , Bin Ren , Zhitong Xiong , Xiao Xiang Zhu , Begüm Demir , Nicu Sebe , Paolo Rota

This paper presents a novel convolutional neural network (CNN) based image compression framework via scalable auto-encoder (SAE). Specifically, our SAE based deep image codec consists of hierarchical coding layers, each of which is an…

Multimedia · Computer Science 2019-04-02 Chuanmin Jia , Zhaoyi Liu , Yao Wang , Siwei Ma , Wen Gao

High-fidelity neural audio codecs in Text-to-speech (TTS) aim to compress speech signals into discrete representations for faithful reconstruction. However, prior approaches faced challenges in effectively disentangling acoustic and…

Sound · Computer Science 2025-09-23 Ruonan Zhang , Xiaoyang Hao , Yichen Han , Junjie Cao , Yue Liu , Kai Zhang

Cloud formations often obscure optical satellite-based monitoring of the Earth's surface, thus limiting Earth observation (EO) activities such as land cover mapping, ocean color analysis, and cropland monitoring. The integration of machine…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Aleksis Pirinen , Nosheen Abid , Nuria Agues Paszkowsky , Thomas Ohlson Timoudas , Ronald Scheirer , Chiara Ceccobello , György Kovács , Anders Persson

We propose TC-AE, a ViT-based architecture for deep compression autoencoders. Existing methods commonly increase the channel number of latent representations to maintain reconstruction quality under high compression ratios. However, this…

Computer Vision and Pattern Recognition · Computer Science 2026-04-09 Teng Li , Ziyuan Huang , Cong Chen , Yangfu Li , Yuanhuiyi Lyu , Dandan Zheng , Chunhua Shen , Jun Zhang

Being a cornerstone of temporal analysis, change detection has been playing a pivotal role in modern earth observation. Existing change detection methods rely on the Siamese encoder to individually extract temporal features followed by…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Mubashir Noman , Mustansar Fiaz , Hiyam Debary , Abdul Hannan , Shah Nawaz , Fahad Shahbaz Khan , Salman Khan

Tokenized visual representations have shown promise in image compression, yet their extension to video remains underexplored due to the challenges posed by complex temporal dynamics and stringent bit rate constraints. In this paper, we…

Image and Video Processing · Electrical Eng. & Systems 2025-11-20 Lebin Zhou , Cihan Ruan , Nam Ling , Zhenghao Chen , Wei Wang , Wei Jiang

Tactile sensing is crucial for embodied intelligence, providing fine-grained perception and control in complex environments. However, efficient tactile data compression, which is essential for real-time robotic applications under strict…

Robotics · Computer Science 2026-02-11 Zhengxue Cheng , Yan Zhao , Keyu Wang , Hengdi Zhang , Li Song
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