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This paper presents a light-emitting reconfigurable intelligent surface (LeRIS) architecture that integrates vertical cavity surface emitting lasers (VCSELs) to jointly support user localization, obstacle-aware mapping, and millimeter-wave…

The assessment of iris uniqueness plays a crucial role in analyzing the capabilities and limitations of iris recognition systems. Among the various methodologies proposed, Daugman's approach to iris uniqueness stands out as one of the most…

Computer Vision and Pattern Recognition · Computer Science 2023-06-23 Katelyn M. Hampel , Jinyu Zuo , Priyanka Das , Natalia A. Schmid , Stephanie Schuckers , Joseph Skufca , Matthew C. Valenti

In this paper, we propose a deep learning based assistive system to improve the environment perception experience of visually impaired (VI). The system is composed of a wearable terminal equipped with an RGBD camera and an earphone, a…

Robotics · Computer Science 2019-08-12 Yimin Lin , Kai Wang , Wanxin Yi , Shiguo Lian

In this research work, we address the problem of robust iris centre localisation in unconstrained conditions as a core component of our eye-gaze tracking platform. We investigate the application of U-Net variants for segmentation-based and…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Nipun Sandamal Ranasekara Pathiranage , Stefania Cristina , Kenneth P. Camilleri

Eye-tracking technology has gained significant attention in recent years due to its wide range of applications in human-computer interaction, virtual and augmented reality, and wearable health. Traditional RGB camera-based eye-tracking…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 Argha Sen , Nuwan Bandara , Ila Gokarn , Thivya Kandappu , Archan Misra

Interactive image segmentation(IIS) plays a critical role in generating precise annotations for remote sensing imagery, where objects often exhibit scale variations, irregular boundaries and complex backgrounds. However, existing IIS…

Computer Vision and Pattern Recognition · Computer Science 2025-12-11 Deliang Wang , Peng Liu , Yan Ma , Rongkai Zhuang , Lajiao Chen , Bing Li , Yi Zeng

Infrared imaging is essential for autonomous driving and robotic operations as a supportive modality due to its reliable performance in challenging environments. Despite its popularity, the limitations of infrared cameras, such as low…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Xingyuan Li , Zirui Wang , Yang Zou , Zhixin Chen , Jun Ma , Zhiying Jiang , Long Ma , Jinyuan Liu

Infrared image super-resolution (IISR) under real-world conditions is a practically significant yet rarely addressed task. Pioneering works are often trained and evaluated on simulated datasets or neglect the intrinsic differences between…

Computer Vision and Pattern Recognition · Computer Science 2026-03-06 Yang Zou , Jun Ma , Zhidong Jiao , Xingyuan Li , Zhiying Jiang , Jinyuan Liu

Gabor kernels are widely accepted as dominant filters for iris recognition. In this work we investigate, given the current interest in neural networks, if Gabor kernels are the only family of functions performing best in iris recognition,…

Computer Vision and Pattern Recognition · Computer Science 2020-02-24 Aidan Boyd , Adam Czajka , Kevin Bowyer

Images captured in severe low-light circumstances often suffer from significant information absence. Existing singular modality image enhancement methods struggle to restore image regions lacking valid information. By leveraging…

Computer Vision and Pattern Recognition · Computer Science 2025-02-14 Chen Zhao , Mengyuan Yu , Fan Yang , Peiguang Jing

According to the World Health Organization(WHO), it is estimated that approximately 1.3 billion people live with some forms of vision impairment globally, of whom 36 million are blind. Due to their disability, engaging these minority into…

Human-Computer Interaction · Computer Science 2020-07-03 Jieshan Chen , Chunyang Chen , Zhenchang Xing , Xiwei Xu , Liming Zhu , Guoqiang Li , Jinshui Wang

The InfraRed Imaging Spectrograph (IRIS) is a first light client science instrument for the TMT observatory that operates as a client of the NFIRAOS facility multi-conjugate adaptive optics system. This paper reports on the concept study…

We present sensitivity estimates for point and resolved astronomical sources for the current design of the InfraRed Imaging Spectrograph (IRIS) on the future Thirty Meter Telescope (TMT). IRIS, with TMT's adaptive optics system, will…

Instrumentation and Methods for Astrophysics · Physics 2015-05-19 Shelley A. Wright , Elizabeth J. Barton , James E. Larkin , Anna M. Moore , David Crampton , Luc Simard , IRIS team

We investigate the design of an entire mobile imaging system for early detection of melanoma. Different from previous work, we focus on smartphone-captured visible light images. Our design addresses two major challenges. First, images…

Computer Vision and Pattern Recognition · Computer Science 2018-02-27 T. -T. Do , T. Hoang , V. Pomponiu , Y. Zhou , Z. Chen , N. -M. Cheung , D. Koh , A. Tan , S. -H. Tan

The use of low-resolution images adopting more relaxed acquisition conditions such as mobile phones and surveillance videos is becoming increasingly common in iris recognition nowadays. Concurrently, a great variety of single image…

Computer Vision and Pattern Recognition · Computer Science 2022-10-25 Eduardo Ribeiro , Andreas Uhl , Fernando Alonso-Fernandez

System identification is an exceptionally expansive topic and of remarkable significance in the discipline of signal processing and communication. Our goal in this paper is to show how simple adaptive FIR and IIR filters can be used in…

Signal Processing · Electrical Eng. & Systems 2018-07-19 Ibraheem Kasim Ibraheem

The computational capabilities of recent mobile devices enable the processing of natural features for Augmented Reality (AR), but the scalability is still limited by the devices' computation power and available resources. In this paper, we…

Human-Computer Interaction · Computer Science 2021-11-10 Wenxiao Zhang , Sikun Lin , Farshid Hassani Bijarbooneh , Haofei Cheng , Tristan Braud , Pengyuan Zhou , Lik-hang Lee , Pan Hui

We study a visible light communication (VLC) system that employs a colored reconfigurable intelligent surface (CRIS) based on dichroic mirrors that reflect light at tunable frequencies. A verifier can use the CRIS to authenticate…

Signal Processing · Electrical Eng. & Systems 2025-04-21 Besra Cetindere Vela , Serkan Vela , Stefano Tomasin

Circulatory system abnormalities might be an indicator of diseases or tissue damage. Early detection of vascular abnormalities might have an important role during treatment and also raise the patient's awarenes. Current detection methods…

Computer Vision and Pattern Recognition · Computer Science 2023-09-07 Ayse Altay , Abdurrahman Gumus

Integrated sensing and communication (ISAC) has been identified as a promising technology for the sixth generation (6G) of communication networks. Target privacy in ISAC is essential to ensure that only legitimate sensors can detect the…

Signal Processing · Electrical Eng. & Systems 2025-03-10 Ahmed Magbool , Vaibhav Kumar , Marco Di Renzo , Mark F. Flanagan