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A high efficient code for visible light positioning system based on image sensor
2019
IEEE Access
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A light-emitting diode (LED) can be modulated in visible light positioning systems so that it acts as a transmitter with a unique ID. ...
INDEX TERMS Encoding efficiency, light-emitting diode (LED) ID, visible light position. 77762 2169-3536 ...
MASK XOR CODE PRINCIPLE The operation of the code-based visible light position system is shown in Fig. 1 . The VLP relies on the modulation of the LED and the rolling shutter effect of the CMOS. ...
doi:10.1109/access.2019.2921601
fatcat:affiui7qgzew3i4nxkwchlqg6m
A System for Capturing Textured 3D Shapes Based on One-Shot Grid Pattern with Multi-band Camera and Infrared Projector
2011
2011 International Conference on 3D Imaging, Modeling, Processing, Visualization and Transmission
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One of promising approach to reconstruct a 3D shape is a projector-camera system that projects structured light pattern. ...
If the cameras for infrared and visible lights are placed at different position, it causes the misalignment between texture and shape, which degrades the quality of the textured 3D model. ...
Two monochrome cameras are used to obtain IR images as imaging sensors, and a color camera is used for visible light in this system. Akasaka et al. [?] ...
doi:10.1109/3dimpvt.2011.61
dblp:conf/3dim/SakashitaYSFK11
fatcat:te4wlmdrrjey7m7qdyjf3fvi3y
HFR Projector Camera Based Visible Light Communication System for Real-Time Video Streaming
2020
Sensors
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This study develops a projector-camera-based visible light communication (VLC) system for real-time broadband video streaming, in which a high frame rate (HFR) projector can encode and project a color ...
a gray code for encoding and decoding instead of pure-code-based binary modulation. ...
Maximum likelihood estimation of vehicle position for outdoor image sensor-based visible
light positioning system. Opt. Eng. 2016, 55, 1–8. [CrossRef]
65. Do, T.; Yoo, M. ...
doi:10.3390/s20185368
pmid:32961714
pmcid:PMC7570572
fatcat:j2vgsgl3jjeqlmvumcrlxrwala
Capturing Textured 3D Shapes based on Infrared One-shot Grid Pattern
2012
IPSJ Transactions on Computer Vision and Applications
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One of promising approach to reconstruct a 3D shape is a projector-camera system that projects structured light pattern. ...
If the cameras for infrared and visible lights are placed at different position, it causes the misalignment between texture and shape, which degrades the quality of textured 3D model. ...
Two monochrome cameras are used to obtain IR images as imaging sensors, and a color camera is used for visible light in this system * 1 . Akasaka et al. ...
doi:10.2197/ipsjtcva.4.161
fatcat:i3oi4h6zpvfrzljr347og2wqom
Three-Dimensional Indoor Visible Light Positioning with a Tilt Receiver and a High Efficient LED-ID
2021
Electronics
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Nowadays, indoor visible light positioning (VLP) is one of the hottest technologies in the field of positioning; as a result, a number of algorithms for VLP have been proposed. ...
the positioning of the camera by the triangulation algorithm. ...
In [19] , the method of the indoor positioning system using visible light based on two-LEDs and an image sensor for the different handhold situation of the mobile phone is proposed. ...
doi:10.3390/electronics10111265
fatcat:ybx5dn372fgsxoozyhjj2vdhzi
Visible Light Communication, Networking, and Sensing: A Survey, Potential and Challenges
2015
IEEE Communications Surveys and Tutorials
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This functionality has given rise to a novel communication technology (known as Visible Light Communication -VLC) where LED luminaires can be used for high speed data transfer. ...
Based on the review, Section 7 outlines various challenges that need further research in order to build high-capacity, mobile VLC networks. ...
An imaging sensor or a camera sensor can also be used to receive the transmitted visible light signals. ...
doi:10.1109/comst.2015.2476474
fatcat:bjxca4ktq5hrvneh2ynvnetyiq
High-Accuracy and Real-Time Indoor Positioning System Based on Visible Light Communication and Mobile Robot
2020
International Journal of Optics
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In this paper, we innovatively design a high-accuracy and real-time indoor localization system based on visible light positioning (VLP) and mobile robot. ...
of high robustness, LED-ID recognition algorithm, and triple-light positioning algorithm. ...
sensors near the unknown position and the unknown location is then calculated based on the geometry of the LED image created on the image sensor. ...
doi:10.1155/2020/3124970
fatcat:nlshmgd6w5bkzpvlsoxo6w3gfe
Visible Light Communication [VLC] and its Applications
2019
IARJSET
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For overcoming these limitations, a new method is adopted ie, Visible Light Communication [VLC]. ...
It suffers from interference and high latency issues and the RF communication requires a separate setup for transmission and reception of radio waves. ...
The visible light communication based positioning techniques are of two types. ie, photodiodes[PD] and image sensor[IS] based system. ...
doi:10.17148/iarjset.2019.6213
fatcat:s2piohbhnvay3ag43qxjpivm3a
Research on Secure Debugging Interaction of Sensor Nodes Based on Visible Light Communication
2021
Sensors
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Therefore, we implemented a VLC-based hybrid communication debugging system (HCDS) based on VLC using smartphone and sensor node. ...
To improve the transmission efficiency of the downlink, we also propose a new coding method for source coding and channel coding, respectively. ...
Sensors 2021, 21, 953 ...
doi:10.3390/s21030953
pmid:33535421
fatcat:rjs2gdlrfncttd54mx4fprlldq
Indoor Positioning System based on Visible Light Communication for Mobile Robot in Nuclear Power Plant
[article]
2020
arXiv
pre-print
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Besides, with the optimized visible light positioning algorithm based on dispersion calibration method, the proposed VLP system can achieve an average positioning accuracy of 0.82cm and ensure that 90% ...
Visible light positioning (VLP) is widely believed to be a cost-effective answer to the growing demanded for robot indoor positioning. ...
Based on the above analysis of the positioning results using rviz, we can conclude that the visible light positioning system has a high degree of agreement with the nuclear power plant from the inherent ...
arXiv:2011.07771v1
fatcat:svdbclddjbbn5ihdbgual4obri
Robust near-infrared structured light scanning for 3D human model reconstruction
2014
Emerging Digital Micromirror Device Based Systems and Applications VI
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Previous structured light scanning methods typically emitted visible coded light patterns onto static and opaque objects to establish correspondence between a projector and a camera for triangulation. ...
In the success of these methods rely on scanning objects with proper reflective surface for visible light, such as plaster, light colored cloth. ...
FSL, however, enjoys the advantage of the high resolution and easy and free design of coded pattern. Thus our proposed near-infrared structured light scanning system is based on FSL. ...
doi:10.1117/12.2040137
fatcat:awyon3ealjdu5kebl342roebry
SIMULATION OF CLOSE-RANGE PHOTOGRAMMETRIC SYSTEMS FOR INDUSTRIAL SURFACE INSPECTION
2013
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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These measurement systems are based on an active light source, the projector, and one or more cameras. ...
Close-range photogrammetric measurement systems are increasingly used for high-precision surface inspection of car body parts. ...
The fictive photogrammetric sensor uses a sequence of 14 images, one with light switched off, one with light switched on but no stripes, eight images with the 8-bit gray code and four images for the phase ...
doi:10.5194/isprsarchives-xxxviii-3-w22-179-2011
fatcat:c2guzw5g45grpe5s3pqazek5vm
Paper Titles
2019
2019 IEEE 8th Global Conference on Consumer Electronics (GCCE)
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Flame Recognition Method Based on a Deep Convolutional Neural Network and Image Processing Efficient HEVC Inter Prediction Using SVM Efficient Hybrid Sensor Data Recovery Scheme Efficient Implementation ...
of Sewer Pipelines Design of a Real-Time Visible Laser Light Communication System with Basedband in FPGA for High Definition Video Transmission Design of Adaptive Offloading Framework for Video Streaming ...
doi:10.1109/gcce46687.2019.9015409
fatcat:6k3r6jixrvglrkrkzek636gb54
Steady-state Non-Line-of-Sight Imaging
[article]
2019
arXiv
pre-print
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Relying on consumer color image sensors, with high fill factor, high quantum efficiency and low read-out noise, we demonstrate high-fidelity color NLOS imaging for scene configurations tackled before with ...
Existing NLOS methods temporally probe the indirect light transport to unmix light paths based on their travel time, which mandates specialized instrumentation that suffers from low photon efficiency, ...
The authors thank Colin Brosseau for many fruitful discussions and assisting with the experiments. We thank the Vector Institute for supporting Wenzheng Chen. ...
arXiv:1811.09910v2
fatcat:fumhwdhxmbezjpq6vwgyxrpnui
Empirical Rate-Distortion Analysis of JPEG 2000 3D and H. 264/AVC Coded Integral Imaging Based 3D-Images
2008
2008 3DTV Conference: The True Vision - Capture, Transmission and Display of 3D Video
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ABSTRACT Novel camera systems producing 3D-images containing light direction in addition to light intensity is emerging. Integral imaging (II) is a technique on which many of these systems rely. ...
For low bitrates (<0.5bpp) the H.264/AVC-based coding schemes have higher coding efficiency, which asymptotically level of at higher bitrates in favor of JP3D. ...
The incoming light is relayed through the array within the II-camera and is finally captured by a high resolution pixel sensor. ...
doi:10.1109/3dtv.2008.4547821
fatcat:wsq4kx4dhbcbdibcosu6so2lei
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