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Steganography is an information hiding technique for covert communication. The core issue in steganography design is the rate-distortion coding problem. Polar codes, which have been proven to achieve the rate-distortion bound for any binary…

Cryptography and Security · Computer Science 2025-06-10 Yujun Ji , Jinsheng Li , Ling Liu , Qi Cao , Tao Dai

With the fast growth of communication networks, the video data transmission from these networks is extremely vulnerable. Error concealment is a technique to estimate the damaged data by employing the correctly received data at the decoder.…

Multimedia · Computer Science 2016-10-26 Seyed Mojtaba Marvasti-Zadeh , Hossein Ghanei-Yakhdan , Shohreh Kasaei

We present an approach for polarimetric Synthetic Aperture Radar (SAR) image region boundary detection based on the use of B-Spline active contours and a new model for polarimetric SAR data: the GHP distribution. In order to detect the…

Computer Vision and Pattern Recognition · Computer Science 2012-07-18 Alejandro C. Frery , Julio Jacobo-Berlles , Juliana Gambini , Marta Mejail

Illegal, unreported, and unregulated (IUU) fishing activities seriously affect various aspects of human life. However, traditional methods for detecting and monitoring IUU fishing activities at sea have limitations. Although synthetic…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Yanbing Bai , Siao Li , Rui-Yang Ju , Zihao Yang , Jinze Yu , Jen-Shiun Chiang

Intelligent detection and tracking of the vessels on the sea play a significant role in conducting traffic avoidance in unmanned surface vessels(USV). Current traffic avoidance software relies mainly on Automated Identification System (AIS)…

Artificial Intelligence · Computer Science 2024-05-21 Srikanth Vemula , Eulises Franco , Michael Frye

The complexity of a learning task is increased by transformations in the input space that preserve class identity. Visual object recognition for example is affected by changes in viewpoint, scale, illumination or planar transformations.…

Computer Vision and Pattern Recognition · Computer Science 2017-03-16 Andrea Tacchetti , Stephen Voinea , Georgios Evangelopoulos

Open-set recognition (OSR) aims to simultaneously detect unknown-class samples and classify known-class samples. Most of the existing OSR methods are inductive methods, which generally suffer from the domain shift problem that the learned…

Computer Vision and Pattern Recognition · Computer Science 2022-07-14 Jiayin Sun , Qiulei Dong

Software vulnerabilities (SVs) have become a common, serious, and crucial concern to safety-critical security systems. That leads to significant progress in the use of AI-based methods for software vulnerability detection (SVD). In…

Cryptography and Security · Computer Science 2024-04-16 Van Nguyen , Xingliang Yuan , Tingmin Wu , Surya Nepal , Marthie Grobler , Carsten Rudolph

Accurate vessel trajectory prediction is necessary for save and efficient navigation. Deep learning-based prediction models, esp. encoder-decoders, are rarely applied to inland navigation specifically. Approaches from the maritime domain…

Machine Learning · Computer Science 2024-06-06 Kathrin Donandt , Karim Böttger , Dirk Söffker

We study model-based end-to-end learning in the context of integrated sensing and communication (ISAC) under hardware impairments. Hardware impairments are usually addressed by means of array calibration with a focus on communication…

Signal Processing · Electrical Eng. & Systems 2024-12-20 José Miguel Mateos-Ramos , Christian Häger , Musa Furkan Keskin , Luc Le Magoarou , Henk Wymeersch

This paper introduces the Maritime Ship Navigation Behavior Dataset (MID), designed to address challenges in ship detection within complex maritime environments using Oriented Bounding Boxes (OBB). MID contains 5,673 images with 135,884…

Computer Vision and Pattern Recognition · Computer Science 2024-12-12 Yugang Chang , Hongyu Chen , Fei Wang , Chengcheng Chen , Weiming Zeng

Coastal water autonomous boats rely on robust perception methods for obstacle detection and timely collision avoidance. The current state-of-the-art is based on deep segmentation networks trained on large datasets. Per-pixel ground truth…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Lojze Žust , Matej Kristan

We develop fast and memory efficient numerical methods for learning functions of many variables that admit sparse representations in terms of general bounded orthonormal tensor product bases. Such functions appear in many applications…

Numerical Analysis · Mathematics 2020-05-11 Bosu Choi , Mark Iwen , Felix Krahmer

Self-supervised learning (SSL) is rapidly closing the gap with supervised methods on large computer vision benchmarks. A successful approach to SSL is to learn embeddings which are invariant to distortions of the input sample. However, a…

Computer Vision and Pattern Recognition · Computer Science 2021-06-15 Jure Zbontar , Li Jing , Ishan Misra , Yann LeCun , Stéphane Deny

Pre-screening of ship proposals is now employed by top ship detectors to avoid exhaustive search across image. In very high resolution (VHR) optical image, ships appeared as a cluster of abnormal bright pixels in open sea clutter…

Computer Vision and Pattern Recognition · Computer Science 2018-04-26 Viet Hung Luu , Nguyen Hoang Hoa Luong , Quang Hung Bui , Thi Nhat Thanh Nguyen

The detection of landmarks or patterns is of interest for extracting features in biological images. Hence, algorithms for finding these keypoints have been extensively investigated in the literature, and their localization and detection…

Information Theory · Computer Science 2017-10-11 Zsuzsanna Püspöki , Arash Amini , Julien Fageot , John Paul Ward , Michael Unser

Occlusion in face recognition is a common yet challenging problem. While sparse representation based classification (SRC) has been shown promising performance in laboratory conditions (i.e. noiseless or random pixel corrupted), it performs…

Computer Vision and Pattern Recognition · Computer Science 2015-07-28 Yandong Wen , Weiyang Liu , Meng Yang , Yuli Fu , Youjun Xiang , Rui Hu

Polar codes were recently chosen to protect the control channel information in the next-generation mobile communication standard (5G) defined by the 3GPP. As a result, receivers will have to implement blind detection of polar coded frames…

Information Theory · Computer Science 2018-06-06 Pascal Giard , Alexios Balatsoukas-Stimming , Andreas Burg

Illegal, unreported, and unregulated (IUU) fishing causes global economic losses of 10-25 billion USD annually and undermines marine sustainability and governance. Synthetic Aperture Radar (SAR) provides reliable maritime surveillance under…

Current methods for depth map prediction from monocular images tend to predict smooth, poorly localized contours for the occlusion boundaries in the input image. This is unfortunate as occlusion boundaries are important cues to recognize…

Computer Vision and Pattern Recognition · Computer Science 2020-05-12 Michael Ramamonjisoa , Yuming Du , Vincent Lepetit