Results 11 to 20 of about 5,119 (217)

The Continuity of Images by Transmission Imaging Revisited

CoRR, 2014
Transmission imaging, as an important imaging technique widely used in astronomy, medical diagnosis, and biology science, has been shown in [49] quite different from reflection imaging used in our everyday life. Understanding the structures of images (the prior information) is important for designing, testing, and choosing image processing methods, and
Zhitao Fan, Feng Guan, Chunlin Wu, Ming Yan   +3 more
openaire   +2 more sources

Epipolar Consistency in Transmission Imaging [PDF]

IEEE Transactions on Medical Imaging, 2015
This paper presents the derivation of the Epipolar Consistency Conditions (ECC) between two X-ray images from the Beer-Lambert law of X-ray attenuation and the Epipolar Geometry of two pinhole cameras, using Grangeat's theorem. We motivate the use of Oriented Projective Geometry to express redundant line integrals in projection images and define a ...
André Aichert, Martin Berger 0002, Jian Wang 0009, Nicole Maass, Arnd Doerfler, Joachim Hornegger, Andreas K. Maier   +6 more
openaire   +2 more sources

Improving the Calibration of Image Sensors Based on IOFBs, Using Differential Gray-Code Space Encoding

Sensors, 2012
This paper presents a fast calibration method to determine the transfer function for spatial correspondences in image transmission devices with <em>Incoherent</em><em> </em><em>Optical Fiber</em><em> </em> ...
Carlos Luna Vázquez, Ángel E. Cano García, Ignacio Bravo Muñoz, Alfredo Gardel Vicente, José Luis Lázaro Galilea, Pedro R. Fernández   +5 more
doaj   +1 more source

Joint Early Stopping Criterions for Protograph LDPC Codes-Based JSCC System in Images Transmission

Entropy, 2021
In this paper, a joint early stopping criterion based on cross entropy (CE), named joint CE criterion, is presented for double-protograph low-density parity-check (DP-LDPC) codes-based joint source-channel coding (JSCC) systems in images transmission to ...
Zhiping Xu, Lin Wang, Shaohua Hong
doaj   +1 more source

Differential Binary Encoding Method for Calibrating Image Sensors Based on IOFBs

Sensors, 2012
Image transmission using incoherent optical fiber bundles (IOFBs) requires prior calibration to obtain the spatial in-out fiber correspondence necessary to reconstruct the image captured by the pseudo-sensor.
Ángel Cano, Ignacio Bravo, Felipe Espinosa, José Luis Lázaro-Galilea, Alfredo Gardel, Pedro R. Fernández   +5 more
doaj   +1 more source

An NB-IoT-Based Edge-of-Things Framework for Energy-Efficient Image Transfer

Sensors, 2021
Machine Learning (ML) techniques can play a pivotal role in energy efficient IoT networks by reducing the unnecessary data from transmission. With such an aim, this work combines a low-power, yet computationally capable processing unit, with an NB-IoT ...
Sikandar Zulqarnain Khan, Yannick Le Moullec, Muhammad Mahtab Alam   +2 more
doaj   +1 more source

Modifications of the Mobile Robotic System Crawler [PDF]

Transactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2016
The paper describes modifications of an inspection mobile robotic system. Those were carried out in order to increase the functional value of the current mobile robot.
Jiří SUDER, Zdenko BOBOVSKÝ, Václav KRYS, Tomáš KOT   +3 more
doaj   +1 more source

Streamlined Direct Image Transmission via Plastic Optical Fiber for Automotive Applications

IEEE Access
As automotive safety systems advance, the number of in-vehicle cameras continues to increase, placing a growing burden on their integration. Simple low-cost methods for acquiring scene images are thus required.
Hikaru Fukushima, Isamu Takai, Tadashi Ichikawa, Hiroyuki Matsubara   +3 more
doaj   +1 more source

Semantic Adaptive Communication Based on Double-Attention Phase and Compress Estimator for Wireless Image Transmission

Sensors
In existing semantic communication systems for image transmission, some images are generally reconstructed with considerably low quality and a high transmission rate.
Hong Yang, Lijuan Wang, Pingyu Wang, Ji Li, Linbo Qing, Xiaohai He   +5 more
doaj   +1 more source

Implementation of an Efficient Image Transmission Algorithm for Unmanned Surface Vehicles Based on Semantic Communication

Journal of Marine Science and Engineering, 2023
With the increasingly maturing technology of unmanned surface vehicles (USVs), their applications are becoming more and more widespread. In order to meet operational requirements in complex scenarios, the real-time interaction and linkage of a large ...
Yuanming Chen, Xiaobin Hong, Bin Cui, Rongfa Peng   +3 more
doaj   +1 more source