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The stability of visual odometry (VO) systems is undermined by degraded image quality, especially in environments with significant illumination changes. This study employs a deep reinforcement learning (DRL) framework to train agents for…

Robotics · Computer Science 2024-12-24 Shuyang Zhang , Jinhao He , Yilong Zhu , Jin Wu , Jie Yuan

This article will describe an optical encryption technical of images which it is proposed in an analogical and digital way. The development of the technical to a digital level, it is made to implementing algorithms (routines) in MATLAB. We…

Computational Physics · Physics 2017-09-19 Leidy Marcela Giraldo , Edward Yesid Villegas

In this work, a new 4-D hyperchaotic system for image encryption is proposed and its effectiveness is demonstrated by incorporating it into an existing Elliptic Curve Cryptography (ECC) mapping scheme. The proposed system is considered…

Cryptography and Security · Computer Science 2024-11-27 Yehia Lalili , Toufik Bouden , Morad Grimes , Abderrazek Lachouri

Robust reversible watermarking in encrypted images (RRWEI) faces an inherent challenge in simultaneously achieving robustness, reversibility, and content privacy under severely constrained embedding capacity. Existing RRWEI schemes often…

Cryptography and Security · Computer Science 2026-01-21 Haoyu Shen , Wen Yin , Zhaoxia Yin , Wan-Li Lyu , Xinpeng Zhang

In this paper, we propose a novel content based-image retrieval scheme allowing the mixed use of encrypted and plain images for the first time. In the proposed scheme, images are encrypted by a block-scrambling method developed for…

Image and Video Processing · Electrical Eng. & Systems 2020-11-03 Kenta Iida , Hitoshi Kiya

In this paper, we propose a block-wise image transformation method with a secret key for support vector machine (SVM) models. Models trained by using transformed images offer a poor performance to unauthorized users without a key, while…

Computer Vision and Pattern Recognition · Computer Science 2021-11-18 Ryota Iijima , AprilPyone MaungMaung , Hitoshi Kiya

In Image Compression, the researchers' aim is to reduce the number of bits required to represent an image by removing the spatial and spectral redundancies. Recently discrete wavelet transform and wavelet packet has emerged as popular…

Computer Vision and Pattern Recognition · Computer Science 2010-04-20 G. K. Kharate , V. H. Patil

This study presents a control framework leveraging vision language models (VLMs) for multiple tasks and robots. Notably, existing control methods using VLMs have achieved high performance in various tasks and robots in the training…

Robotics · Computer Science 2024-01-19 Kazuki Shibata , Hideki Deguchi , Shun Taguchi

Vision-language models (VLMs) are typically composed of a vision encoder, e.g. CLIP, and a language model (LM) that interprets the encoded features to solve downstream tasks. Despite remarkable progress, VLMs are subject to several…

Computer Vision and Pattern Recognition · Computer Science 2024-04-11 Oğuzhan Fatih Kar , Alessio Tonioni , Petra Poklukar , Achin Kulshrestha , Amir Zamir , Federico Tombari

Encryption for channel modulation techniques on a physical basis is considered. A channel modulation scheme is proposed in which the selected channel depends on both transmitter and receiver configuration. The planned selections of the…

Signal Processing · Electrical Eng. & Systems 2020-03-02 Gerald Artner

Entanglement is fundamental to quantum information science and technology, yet controlling and manipulating entanglement -- so-called entanglement engineering -- for arbitrary quantum systems remains a formidable challenge. There are two…

Quantum Physics · Physics 2025-03-05 Li-Li Ye , Christian Arenz , Joseph M. Lukens , Ying-Cheng Lai

We present PIXLRelight, a feed-forward approach for physically controllable single-image relighting. Existing methods either provide limited lighting control (e.g. through text or environment maps), accumulate errors when chaining inverse…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Miguel Farinha , Ronald Clark

As networked control systems continue to evolve, ensuring the privacy of sensitive data becomes an increasingly pressing concern, especially in situations where the controller is physically separated from the plant. In this paper, we…

Systems and Control · Electrical Eng. & Systems 2024-10-22 Xuening Tang , Xianghui Cao , Wei Xing Zheng

Perceptual video compression adopts generative video modeling to improve perceptual realism but frequently sacrifices signal fidelity, diverging from the goal of video compression to faithfully reproduce visual signal. To alleviate the…

Computer Vision and Pattern Recognition · Computer Science 2026-04-09 Ding Ding , Daowen Li , Ying Chen , Yixin Gao , Ruixiao Dong , Kai Li , Li Li

This article presents an overview of image transformation with a secret key and its applications. Image transformation with a secret key enables us not only to protect visual information on plain images but also to embed unique features…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 Hitoshi Kiya , AprilPyone MaungMaung , Yuma Kinoshita , Shoko Imaizumi , Sayaka Shiota

Recent advancements in learning from human demonstration have shown promising results in addressing the scalability and high cost of data collection required to train robust visuomotor policies. However, existing approaches are often…

Robotics · Computer Science 2026-04-14 Harry Freeman , Chung Hee Kim , George Kantor

Privacy concerns in healthcare have gained interest recently via GDPR, with a rising need for privacy-preserving data collection methods that keep personal information hidden in otherwise usable data. Sometimes data needs to be encrypted…

Cryptography and Security · Computer Science 2021-04-13 Mikko Impiö , Mehmet Yamaç , Jenni Raitoharju

Focusing on the received power prediction of millimeter-wave (mmWave) radio-frequency (RF) signals, we propose a multimodal split learning (SL) framework that integrates RF received signal powers and depth-images observed by physically…

Networking and Internet Architecture · Computer Science 2019-11-06 Yusuke Koda , Jihong Park , Mehdi Bennis , Koji Yamamoto , Takayuki Nishio , Masahiro Morikura

The purpose of this paper is to present a theoretic and numerical study of utilizing squeezing and phase shift in coherent feedback control of linear quantum optical systems. A quadrature representation with built-in phase shifters is…

Quantum Physics · Physics 2012-06-19 Guofeng Zhang , Heung Wing Joseph Lee , Bo Huang , Hu Zhang

The main advantage of quantum metrology relies on the effective use of entanglement, which indeed allows us to achieve strictly better estimation performance over the standard quantum limit. In this paper, we propose an analogous method…

Quantum Physics · Physics 2017-06-13 Naoki Yamamoto , Tomoaki Mikami