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We study the influence rules of the speckle size of light source on ghost imaging, and propose a new type of speckle patterns to improve the quality of ghost imaging. The results show that the image quality will first increase and then…

光学 · 物理学 2022-05-18 Xinjian Zhang , Siyuan Song , Xiaoping Ma , Haonan Zhang , Lei Gai , Yongjian Gu , Wendong Li

This paper introduces a novel method for RGB-Guided Resolution Enhancement of infrared (IR) images called Guided IR Resolution Enhancement (GIRRE). In the area of single image super resolution (SISR) there exists a wide variety of…

图像与视频处理 · 电气工程与系统科学 2023-09-13 Marcel Trammer , Nils Genser , Jürgen Seiler

When imaging moving objects, single-pixel imaging produces motion blur. This paper proposes a new single-pixel imaging method, which can achieve anti-motion blur imaging of a fast-moving object. The geometric moment patterns and Hadamard…

图像与视频处理 · 电气工程与系统科学 2022-08-17 Zijun Guo , Wenwen Meng , Dongfeng Shi , Linbin Zha , Wei Yang , Jian Huang , Yafeng Chen , Yingjian Wang

Moving object detection is a critical task for autonomous vehicles. As dynamic objects represent higher collision risk than static ones, our own ego-trajectories have to be planned attending to the future states of the moving elements of…

计算机视觉与模式识别 · 计算机科学 2019-11-22 Hazem Rashed , Mohamed Ramzy , Victor Vaquero , Ahmad El Sallab , Ganesh Sistu , Senthil Yogamani

The ghost imaging (GI) technique, which has attracted attention as a highly sensitive and noise-resistant technique, employs a spatially modulated illuminating light and a single-pixel detector. Generally, the information acquired by GI is…

光学 · 物理学 2025-05-23 Shuhei Yoshida

Moving object detection is important in computer vision. Event-based cameras are bio-inspired cameras that work by mimicking the working of the human eye. These cameras have multiple advantages over conventional frame-based cameras, like…

计算机视觉与模式识别 · 计算机科学 2022-01-13 Anindya Mondal , Mayukhmali Das

A spectral camera based on ghost imaging via sparsity constraints (GISC) acquires a spectral data-cube (x; y; {\lambda}) through a single exposure. The noise immunity of the system is one of the important factors affecting the quality of…

光学 · 物理学 2020-05-20 Shengying Liu , Zhentao Liu , Chenyu Hu , Enrong Li , Xia Shen , Shensheng Han

One of the main limitations for the resolution of optical instruments is the size of the sensor's pixels. In this paper we introduce a new sub pixel resolution algorithm to enhance the resolution of images. This method is based on the…

仪器与探测器 · 物理学 2012-11-12 Siamak Khademi , Ahmad Darudi , Zahra Abbasi

The rapid advancements in computer graphics have greatly enhanced the quality of computer-generated images (CGI), making them increasingly indistinguishable from authentic images captured by digital cameras (ADI). This indistinguishability…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Preeti Mehta , Aman Sagar , Suchi Kumari

Color and intensity are two important components in an image. Usually, groups of image pixels, which are similar in color or intensity, are an informative representation for an object. They are therefore particularly suitable for computer…

计算机视觉与模式识别 · 计算机科学 2017-05-01 Guanjun Guo , Hanzi Wang , Wan-Lei Zhao , Yan Yan , Xuelong Li

Image denoising methods must effectively model, implicitly or explicitly, the vast diversity of patterns and textures that occur in natural images. This is challenging, even for modern methods that leverage deep neural networks trained to…

计算机视觉与模式识别 · 计算机科学 2019-12-11 Zhihao Xia , Ayan Chakrabarti

This article studies the problem of image restoration of observed images corrupted by impulse noise and mixed Gaussian impulse noise. Since the pixels damaged by impulse noise contain no information about the true image, how to find this…

最优化与控制 · 数学 2014-07-30 Ming Yan

Regressing the illumination of a scene from the representations of object appearances is popularly adopted in computational color constancy. However, it's still challenging due to intrinsic appearance and label ambiguities caused by unknown…

计算机视觉与模式识别 · 计算机科学 2019-12-25 Huanglin Yu , Ke Chen , Kaiqi Wang , Yanlin Qian , Zhaoxiang Zhang , Kui Jia

While it is known that copying a quantum system does not increase the amount of information obtainable about the originals, it may increase the amount available in practice, when one is restricted to imperfect measurements. We present a…

量子物理 · 物理学 2009-11-06 P. Deuar , W. J. Munro

The motion or out-of-focus effect in digital images is the main reason for the blurred regions in defocused-blurred images. It may adversely affect various image features such as texture, pixel, and region. Therefore, it is important to…

计算机视觉与模式识别 · 计算机科学 2023-11-23 Sadia Basar , Mushtaq Ali , Abdul Waheed , Muneer Ahmad , Mahdi H. Miraz

Computational ghost imaging is a promising technique for single-pixel imaging because it is robust to disturbance and can be operated over broad wavelength bands, unlike common cameras. However, one disadvantage of this method is that it…

图像与视频处理 · 电气工程与系统科学 2018-10-16 Ikuo Hoshi , Tomoyoshi Shimobaba , Takashi Kakue , Tomoyoshi Ito

Classical ghost imaging has received considerable attention in recent years because of its remarkable ability to image a scene without direct observation by a light-detecting imaging device. In this article, we show that this imaging…

光学 · 物理学 2013-09-13 Pradeep Sen

Atmospheric scintillation is one of the largest sources of error in ground-based spectrophotometry, reducing the precision of astrophysical signals extracted from the time-series of bright objects to that of much fainter objects. Relative…

天体物理仪器与方法 · 物理学 2025-10-14 Jason E. Williams , Nicholas P. Konidaris

Waves can be used to probe and image an unknown medium. Passive imaging uses ambient noise sources to illuminate the medium. This paper considers passive imaging with moving sensors. The motivation is to generate large synthetic apertures,…

经典物理 · 物理学 2017-02-15 Mathias Fink , Josselin Garnier

We investigate the effect of turbulence on quantum ghost imaging. We use entangled photons and demonstrate that for a novel experimental configuration the effect of turbulence can be greatly diminished. By decoupling the entangled photon…