Design of High-efficiency Natural Image Embedded Hardware Surveillance System

2021 ◽  
Author(s):  
Ting-Yu Lin ◽  
Jen-Shiun Chiang ◽  
Cheng-En Wei ◽  
Yu-Shian Lin
Keyword(s):  
Surveillance System ◽  
High Efficiency ◽  
Natural Image

scholarly journals An Underwater Image Enhancement Algorithm Based on Generative Adversarial Network and Natural Image Quality Evaluation Index

2021 ◽  
Vol 9 (7) ◽  
pp. 691
Author(s):  
Kai Hu ◽  
Yanwen Zhang ◽  
Chenghang Weng ◽  
Pengsheng Wang ◽  
Zhiliang Deng ◽  
...  
Keyword(s):  
Image Quality ◽  
Image Enhancement ◽  
Quality Evaluation ◽  
High Efficiency ◽  
Natural Image ◽  
High Quality ◽  
Generative Adversarial Network ◽  
Image Quality Evaluation ◽  
Adversarial Network ◽  
Underwater Image

When underwater vehicles work, underwater images are often absorbed by light and scattered and diffused by floating objects, which leads to the degradation of underwater images. The generative adversarial network (GAN) is widely used in underwater image enhancement tasks because it can complete image-style conversions with high efficiency and high quality. Although the GAN converts low-quality underwater images into high-quality underwater images (truth images), the dataset of truth images also affects high-quality underwater images. However, an underwater truth image lacks underwater image enhancement, which leads to a poor effect of the generated image. Thus, this paper proposes to add the natural image quality evaluation (NIQE) index to the GAN to provide generated images with higher contrast and make them more in line with the perception of the human eye, and at the same time, grant generated images a better effect than the truth images set by the existing dataset. In this paper, several groups of experiments are compared, and through the subjective evaluation and objective evaluation indicators, it is verified that the enhanced image of this algorithm is better than the truth image set by the existing dataset.

Tracking Filter for Radio Surveillance upon UAV Detection

2021 ◽  
Vol 26 (6) ◽  
pp. 554-564
Author(s):  
E.I. Minakov ◽  
◽  
G.A. Valikhin ◽  
A.V. Ovchinnikov ◽  
S.S. Matveeva ◽  
...  
Keyword(s):  
Surveillance System ◽  
High Efficiency ◽  
Target Position ◽  
Surveillance Systems ◽  
Energy Potential ◽  
Filter System ◽  
Detection And Tracking ◽  
Visual Identification ◽  
Aerial Vehicle ◽  
Tracking Filter

Unsanctioned intrusion of unmanned aerial vehicle (UAV) on the territory of the guarded object is primarily detected by specialized radio surveillance systems. The results obtained by radio surveillance systems are used for aiming of UAV visual identification and radio jamming systems. In this work, the problems of UAV detection and tracking of the target trajectory are considered. The known tracking filter systems for radio surveillance application were analyzed and a specialized matrix tracking filter system was proposed, which uses in its algorithm a dynamically changing energy potential of the radio surveillance system. The developed tracking filter system efficiency is evaluated using methods of matrix calculation, mathematical modeling, and probability theory. It has been established that the developed tracking filter system lets the radio surveillance equipment most effectively initiate trajectories of UAV, set its movement window, consider radio surveillance equipment characteristics, and approximate the trajectory of UAV at times of missed detections connected to radar cross-section fluctuations of moving targets. A high efficiency of the developed system has been achieved by decreasing the inaccuracy of the target position prediction two times in comparison with the known tracking filter systems. The obtained results allow easy scaling of the developed tracking filter system for its application as a part of any radio surveillance system.

scholarly journals Raspberry Pi Based Home Surveillance System using SMTP

2020 ◽  
Vol 9 (1) ◽  
pp. 2792-2794
Keyword(s):  
Computer Vision ◽  
Surveillance System ◽  
High Efficiency ◽  
Raspberry Pi ◽  
Surveillance Systems ◽  
Processing Unit ◽  
Central Processing ◽  
Local Database ◽  
Python Language ◽  
Transfer Protocol

Different Technologies are emerging in the field of Home Surveillance now a days. Surveillance systems are being used to reduce man power and to increase security of a home. Technologies like Computer Vision and Internet of Things (IOT) are one of them. In this project a surveillance system has been implemented employing a single board computer i.e. Raspberry Pi 3 which will act like a central processing unit with the help of python language and a module named as Open Source Computer Vision(Open CV).To make it more automated a local database of authorized persons has been made. It will store the images of the different authorized persons who can enter in that security area. Camera will be always in surveillance mode and it will be searching for a face persistently. It’ll act as Computer Vision. This will lead to more accurate system with high efficiency. Therefore it’ll capture the image of the person automatically and compare it with the local database. In the case of match, door will be open automatically otherwise in the case of unauthorized person, system will send the image of the unauthorized person to owner of the home via SMTP(Simple Mail Transfer Protocol). A local library in Python - "smtplib" is being press into service to send messages. The smtplib module characterizes a SMTP customer meeting object that can be utilized to send messages to any Web machine with SMTP( Simple Mail Transfer Protocol). Also a webpage has been made with the help of apache server to store the images of unauthorized persons.

Design of a Remote Wireless Surveillance System Based on 3G

2012 ◽  
Vol 532-533 ◽  
pp. 606-609
Author(s):  
Bai Yan Hu ◽  
Zong Wu Ke ◽  
Lin Huang ◽  
Chong Wen Wang
Keyword(s):  
Data Transmission ◽  
Surveillance System ◽  
Large Scale ◽  
High Efficiency ◽  
High Quality ◽  
Image Capture ◽  
Front End ◽  
Large Scale Project

The remote wireless surveillance system based on 3G consist of the front-end image capture module, data transmission module, and the back-end monitoring part. The basis elements of the system and the principle is discussed .The system of software and the hardware is introduced. The system is high-compressed, of high quality ,easily wiring, and of high efficiency. The best use of the system is to surveillance the complicated enviroment of a large scale project.

scholarly journals Robust Time Optimization in HD Video Surveillance System

2019 ◽  
Vol 8 (9S3) ◽  
pp. 923-928
Keyword(s):  
Video Coding ◽  
Video Surveillance ◽  
Surveillance System ◽  
High Efficiency ◽  
Transmission Time ◽  
Video Surveillance System ◽  
Area Network ◽  
Wide Area Network ◽  
High Efficiency Video Coding ◽  
Ip Camera

Recent video surveillance system provides a path to continuously monitor any place at any time. In addition IP based surveillance system helps to monitor the place remotely through wide area network. Here the system is designed such that the camera which captures the video act as the front end and the computer which helps as to view the details acts as the client of the system. The main aim of this paper is to increase the resolution of the video in the system and to reduce the transmission time of the IP based video surveillance system. In this system we use IP camera to capture the scene and a field programmable gate array (FPGA) is connected to the local server through the IP network.The FPGA used here is programmed to process the captured video and operates towards effective data transmission in IP network. The algorithms like connected component labeling, background modeling is analyzed along with High Efficiency Video Coding (HEVC) to enhance the quality of the video captured. In futureon updating the designed model Using WAP structure the cell phones can be used for the client side of the system.As expected due to the introduction of efficient video coding and IP networking the transmission time is highly reduced in our proposed system.

scholarly journals A Numerical Method for Optimization of the Arrangement of Elements of a Video Surveillance System Taking into Account their Safety

2021 ◽  
Vol 27 (1) ◽  
pp. 073-080
Author(s):  
V. V. Menshikh ◽  
◽  
N. E. Chirkova ◽  
Keyword(s):  
Decision Tree ◽  
Numerical Method ◽  
Video Surveillance ◽  
Branch And Bound ◽  
Surveillance System ◽  
High Efficiency ◽  
Optimal Solution ◽  
Video Surveillance System ◽  
Numerical Example

The article deals with the development of a numerical method for optimizing the arrangement of elements of a video surveillance system, taking into account their own safety. The necessity of using the branch and bound scheme in the development of this method is substantiated, which makes it possible to search for an optimal solution with high efficiency. Methods of forming a partial decision tree, evaluating partial solutions, traversing the vertices of a partial decision tree are determined. A numerical example of the implementation of the proposed method is shown.

scholarly journals Assessment of the core functions of hepatitis B surveillance system in the southeastern Iran: a qualitative study

2019 ◽  
Author(s):  
Mozhgan Mahmoodi ◽  
Abbas Yazdanpanah ◽  
Abbas Ghavam ◽  
Khodadad Sheikhzadeh
Keyword(s):  
Hepatitis B ◽  
World Health Organization ◽  
Surveillance System ◽  
Disease Surveillance ◽  
High Efficiency ◽  
World Health ◽  
The Core ◽  
Disease Surveillance System ◽  
Content Analysis Method ◽  
Health Organization

Introduction: Viral hepatitis has been declared as one of the major health problems by World Health Organization. Hepatitis B surveillance system is one of the most important tools for managing the disease and achieving the targets of disease elimination. Despite its high efficiency, hepatitis B surveillance system has always been faced with many challenges. Therefore, the present study aimed to investigate the core functions of the hepatitis B surveillance system in southeastern region of Iran. Method: Semi-structured in-depth interviews were conducted with 14 hepatitis B surveillance experts in five counties of Sistan and Baluchestan Province, southeast Iran. The data were analyzed using content analysis method, based on the structure of the disease surveillance system. Purposeful sampling method was carried out and continued until saturation of the themes was achieved. Results: The main studied themes were case finding, case reporting, case registration, case confirmation, data analysis, sending feedback, and implementing interventions. The results of this study showed that all of the core functions of the hepatitis B surveillance system were running in the studied counties, although they did not meet the relevant standards in some cases. Conclusion: It seemed that, despite the numerous efforts and activities, it was still far from reaching the targets of the program. Considering the goal of World Health Organization to eliminate hepatitis B by 2030, it is essential to address these challenges and make attempt to overcome them.

Footwear Exchange Has No Influence on the Incidence of Febrile Neutropenia in Patients Undergoing Chemotherapy for Hematologic Malignancies

2004 ◽  
Vol 25 (1) ◽  
pp. 51-54 ◽  
Author(s):  
Hiroyuki Sugahara ◽  
Masao Mizuki ◽  
Sayoko Matsumae ◽  
Yoshiko Nabetani ◽  
Motoko Kikuchi ◽  
...  
Keyword(s):  
Febrile Neutropenia ◽  
Nosocomial Infections ◽  
Surveillance System ◽  
High Efficiency ◽  
Neutropenic Patient ◽  
Hematologic Malignancies ◽  
University Hospital ◽  
Infection Rates ◽  
Historical Comparison ◽  
Control And Prevention

AbstractObjective:To determine whether footwear exchange affects the incidence of febrile neutropenia among patients undergoing chemotherapy for hematologic malignancies.Design:Open trial with historical comparison.Setting:The 12-bed high-efficiency particulate air-fil-tered hematology unit at Osaka University Hospital, Suita, Japan.Patients:Those with hematologic malignancies who underwent chemotherapy from January 1997 through January 2003. Footwear exchange was discontinued in January 2000.Methods:The surveillance system was based on the National Nosocomial Infections Surveillance System of the Centers for Disease Control and Prevention. Rates of febrile neutropenia were calculated for neutropenic patient-days (ie, days with neutropenia < 500/μL).Results:From January 1997 through December 1999 and from February 2000 through January 2003, 58 and 54 patients endured 237 and 184 neutropenic periods following chemotherapy, and their total neutropenic days were 3,123 and 2,503, respectively. They showed episodes of febrile neutropenia 89 and 68 times, respectively. Infection rates were 28.5 and 27.2 per 1,000 neutropenic patient-days (P = .83), respectively.Conclusion:The incidence of febrile neutropenia was not affected by footwear exchange. In hematology units, changing shoes does not appear to affect the rate of infections during neutropenic periods.

Microcalorimeters for X-Ray Spectroscopy

1988 ◽  
Vol 102 ◽  
pp. 41
Author(s):  
E. Silver ◽  
C. Hailey ◽  
S. Labov ◽  
N. Madden ◽  
D. Landis ◽  
...  
Keyword(s):  
High Resolution ◽  
High Efficiency ◽  
Thermal Response ◽  
Low Noise ◽  
High Resolution Spectroscopy ◽  
Superconducting Transition ◽  
Sapphire Substrates ◽  
Laboratory Plasmas ◽  
Adiabatic Demagnetization ◽  
Theoretical Predictions

The merits of microcalorimetry below 1°K for high resolution spectroscopy has become widely recognized on theoretical grounds. By combining the high efficiency, broadband spectral sensitivity of traditional photoelectric detectors with the high resolution capabilities characteristic of dispersive spectrometers, the microcalorimeter could potentially revolutionize spectroscopic measurements of astrophysical and laboratory plasmas. In actuality, however, the performance of prototype instruments has fallen short of theoretical predictions and practical detectors are still unavailable for use as laboratory and space-based instruments. These issues are currently being addressed by the new collaborative initiative between LLNL, LBL, U.C.I., U.C.B., and U.C.D.. Microcalorimeters of various types are being developed and tested at temperatures of 1.4, 0.3, and 0.1°K. These include monolithic devices made from NTD Germanium and composite configurations using sapphire substrates with temperature sensors fabricated from NTD Germanium, evaporative films of Germanium-Gold alloy, or material with superconducting transition edges. A new approache to low noise pulse counting electronics has been developed that allows the ultimate speed of the device to be determined solely by the detector thermal response and geometry. Our laboratory studies of the thermal and resistive properties of these and other candidate materials should enable us to characterize the pulse shape and subsequently predict the ultimate performance. We are building a compact adiabatic demagnetization refrigerator for conveniently reaching 0.1°K in the laboratory and for use in future satellite-borne missions. A description of this instrument together with results from our most recent experiments will be presented.

Imaging and diffraction modes in Scanning Transmission Electron Microscopy

1986 ◽  
Vol 44 ◽  
pp. 684-687
Author(s):  
J. M. Cowley ◽  
R. Glaisher ◽  
J. A. Lin ◽  
H.-J. Ou
Keyword(s):  
Scanning Transmission Electron Microscopy ◽  
High Efficiency ◽  
Fiber Optic ◽  
Image Intensifier ◽  
Detector System ◽  
Detector Plane ◽  
Secondary Electrons ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
Special Detector

Some of the most important applications of STEM depend on the variety of imaging and diffraction made possible by the versatility of the detector system and the serial nature, of the image acquisition. A special detector system, previously described, has been added to our STEM instrument to allow us to take full advantage of this versatility. In this, the diffraction pattern in the detector plane may be formed on either of two phosphor screens, one with P47 (very fast) phosphor and the other with P20 (high efficiency) phosphor. The light from the phosphor is conveyed through a fiber-optic rod to an image intensifier and TV system and may be photographed, recorded on videotape, or stored digitally on a frame store. The P47 screen has a hole through it to allow electrons to enter a Gatan EELS spectrometer. Recently a modified SEM detector has been added so that high resolution (10Å) imaging with secondary electrons may be used in conjunction with other modes.

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