OBJECT DETECTION AND TRACKING IN REAL TIME ENVIRONMENT WITH DIFFERENT COLOUR BACKGROUND IN EUCLIDEAN COLOR FILTER

2016 ◽  
Vol 2 (2) ◽  
Author(s):  
Trapti Mala Mishra ◽  
Md. Amzad Quazi
Keyword(s):  
Visual Observation ◽  
Paper Analysis ◽  
Video Observation ◽  
Color Filter ◽  
Detection And Tracking ◽  
Color Detection ◽  
Colored Background ◽  
Transient Data ◽  
Set Up ◽  
Normal Background

The innovation of moving item is imperative in numerous undertakings, for example, video reconnaissance and moving article following. In this paper, an audit has been made on a video reconnaissance situation with constant moving item identification and following. The configuration of a video observation framework is coordinated on programmed distinguishing proof of occasions of interest, particularly on following and arrangement of moving articles. The article following and discovery is utilized to set up a correspondence between items or article parts in continuous edges and to concentrate transient data about items, for example, direction, stance, speed and direction. Tracking is distinguishing the items outline by edge in video. It can be utilized as a part of numerous districts, for example, video reconnaissance, movement checking and individuals following. In static environment division of article is not complex. In element environment because of element ecological conditions, for example, brightening changes, shadows and waving tree limbs in the wind object division is a troublesome and noteworthy issue that should be taken care of well for a powerful visual observation framework. In this paper analysis of different colored object in different colored background with the help of Euclidean color filter and compare normal background with different lightening condition. In this work, we analysis the detection capability of filter in same color  with different lightening condition  background and find out the range of color detection by the filter.

scholarly journals Design of Security System Based on Raspberry-PI

2019 ◽  
Vol 19 (2) ◽  
pp. 56-61
Author(s):  
Mohanad Abdulhamid ◽  
Singoee Sheshai
Keyword(s):  
Motion Detection ◽  
Raspberry Pi ◽  
Video Streams ◽  
Environment Friendly ◽  
Live Video ◽  
Video Cameras ◽  
Detection And Tracking ◽  
Tracking Process ◽  
Set Up ◽  
Wireless Module

AbstractAs a critical constituent of many associations’ protection and security precedence, video surveillance has set up its importance and benefits numerous instances with the aid of imparting immediate supervising of possessions, people, surroundings and property. This paper deals with the diagram strategy of an embedded real-time surveillance gadget based totally on Raspberry-Pi single board computer (SBC) for intruder detection which is reinforcing technology of surveillance to supply fundamental security to our life and associated control and alert operations. The suggested safety solution is hinging on our novel integration of cameras and action detectors into application of web. Raspberry-Pi is operating and controlling action detectors and video cameras for far flung sensing and surveillance, streams live video and files it for future playback. Also, this paper is focusing on growing a surveillance machine that detects strangers and to response speedily through taking pictures and relaying photos to proprietor based totally wireless module. This Raspberry-Pi based clever surveillance machine presents the concept of monitoring a region in a far-flung area. The suggested solution offers a fee advantageous ubiquitous surveillance solution, environment friendly and convenient to implement. Furthermore, the paper presents the idea of motion detection and tracking using image processing. This type of technology is of great importance when it comes to surveillance and security. Live video streams therefore be used to show how objects can be detected then tracked. The detection and tracking process are based on pixel threshold.

scholarly journals Evaluation of pheromone trapping of diamondback moth (Plutella xylostella) as a tool for monitoring larval infestations in cabbage crops in Samoa

2007 ◽  
Vol 25 (1) ◽  
pp. 43 ◽  
Author(s):  
J.B. Sulifoa ◽  
A.A. Ebenebe
Keyword(s):  
Plutella Xylostella ◽  
Diamondback Moth ◽  
Visual Observation ◽  
Pheromone Traps ◽  
Weekly Basis ◽  
Pheromone Trapping ◽  
Set Up

Studies were conducted at Aleisa and Alafua in Samoa, during 2004/2005, to assess the propriety of using pheromone trapping of Plutella xylostella as a tool for monitoring larval infestations in cabbage crops. Numbers of adults and larvae of P. xylostella present in cabbage crops were monitored, concurrently, on a weekly basis at the two sites over a period of 13 and 15 months, respectively. Numbers of P. xylostella adults were monitored by using pheromone traps which were set up in cabbage fields, whereas numbers of larvae were monitored through visual observation of cabbage plants in the same fields where the pheromone traps were placed. Results showed that numbers of P. xylostella adults caught in pheromone traps were positively correlated with larval infestations in the crops (r = 0.894 for Aleisa, r = 0.589 for Alafua). Number of moths caught in traps explained 79.9% and 34.4% of variation in larval infestations at Aleisa and Alafua, respectively.

Study on the Quality Control Method of Nuclear Power Plant Project

2015 ◽  
Vol 1092-1093 ◽  
pp. 459-462
Author(s):  
Feng Ling Zheng
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Power Plants ◽  
Control Method ◽  
Paper Analysis ◽  
Production Cycle ◽  
Construction Quality ◽  
Project Construction ◽  
Set Up

Nuclear power plant engineering quality is the security of nuclear safety. The main danger source of nuclear power plants is the nuclear island. Once the project quality uncontrollable, radioactive nuclear fuel could be harm to human and environmental in the nuclear power station trial operation or production cycle. So this paper analysis the effect factors of the nuclear power construction quality, and concludes it must to be control strictly the project construction quality of the nuclear power plant, and use the prevention and control method to set up quality defensive barrier to eliminate the problems of engineering quality.

scholarly journals Intraoperative dynamics of workflow disruptions and surgeons' technical performance failures: insights from a simulated operating room

2021 ◽  
Author(s):  
Amelie Koch ◽  
Aljoscha Kullmann ◽  
Philipp Stefan ◽  
Tobias Weinmann ◽  
Sebastian F. Baumbach ◽  
...  
Keyword(s):  
Operating Room ◽  
Mixed Reality ◽  
Binary Logistic Regression ◽  
Video Observation ◽  
Binary Logistic Regression Model ◽  
Surgical Performance ◽  
Subsequent Performance ◽  
Technical Performance ◽  
Flow Disruptions ◽  
Set Up

Abstract Introduction Flow disruptions (FD) in the operating room (OR) have been found to adversely affect the levels of stress and cognitive workload of the surgical team. It has been concluded that frequent disruptions also lead to impaired technical performance and subsequently pose a risk to patient safety. However, respective studies are scarce. We therefore aimed to determine if surgical performance failures increase after disruptive events during a complete surgical intervention. Methods We set up a mixed-reality-based OR simulation study within a full-team scenario. Eleven orthopaedic surgeons performed a vertebroplasty procedure from incision to closure. Simulations were audio- and videotaped and key surgical instrument movements were automatically tracked to determine performance failures, i.e. injury of critical tissue. Flow disruptions were identified through retrospective video observation and evaluated according to duration, severity, source, and initiation. We applied a multilevel binary logistic regression model to determine the relationship between FDs and technical performance failures. For this purpose, we compared FDs in one-minute intervals before performance failures with intervals without subsequent performance failures. Results Average simulation duration was 30:02 min (SD = 10:48 min). In 11 simulated cases, 114 flow disruption events were observed with a mean hourly rate of 20.4 (SD = 5.6) and substantial variation across FD sources. Overall, 53 performance failures were recorded. We observed no relationship between FDs and likelihood of immediate performance failures: Adjusted odds ratio = 1.03 (95% CI 0.46–2.30). Likewise, no evidence could be found for different source types of FDs. Conclusion Our study advances previous methodological approaches through the utilisation of a mixed-reality simulation environment, automated surgical performance assessments, and expert-rated observations of FD events. Our data do not support the common assumption that FDs adversely affect technical performance. Yet, future studies should focus on the determining factors, mechanisms, and dynamics underlying our findings.

Real-time target moving monitoring algorithm in respiration gating system

2019 ◽  
Vol 33 (14n15) ◽  
pp. 1940047
Author(s):  
Chiu-Ching Tuan ◽  
Chi-Heng Lu ◽  
Yi-Chao Wu ◽  
Yu-Feng Chien ◽  
Tsair-Fwu Lee
Keyword(s):  
Real Time ◽  
Detection Threshold ◽  
Monitoring Method ◽  
Detection Range ◽  
Alert Message ◽  
Color Detection ◽  
Long Time ◽  
Respiration Gating ◽  
System Requirements ◽  
Set Up

This study proposes the use of the ScanNet real-time target moving monitoring method that allows the therapist to set up three primary color detection threshold values, the detection range, the automatic compensation of the distance of the device and the angle of the device. Moreover, the real-time images detected are used for reminding the patient to maintain the therapeutic posture. If the displacement exceeds the permitted range, an alert message will be sent out. Moreover, because the operation is simple, and the system requirements are not too demanding, ScanNet, in addition to its use in monitoring displacement during radiation therapy, can be applied to MRI and other treatments that require the patient to maintain a position for a long time or on patients receiving residential respiratory therapy.

scholarly journals Deep Reinforcement Learning-Based Robotic Grasping in Clutter and Occlusion

2021 ◽  
Vol 13 (24) ◽  
pp. 13686
Author(s):  
Marwan Qaid Mohammed ◽  
Lee Chung Kwek ◽  
Shing Chyi Chua ◽  
Abdulaziz Salamah Aljaloud ◽  
Arafat Al-Dhaqm ◽  
...  
Keyword(s):  
Visual Observation ◽  
Robotic Manipulation ◽  
Experimental Simulation ◽  
Multiple Views ◽  
Robotic Grasping ◽  
Visual Change ◽  
Depth Difference ◽  
Set Up ◽  
Partially Occluded ◽  
View Change

In robotic manipulation, object grasping is a basic yet challenging task. Dexterous grasping necessitates intelligent visual observation of the target objects by emphasizing the importance of spatial equivariance to learn the grasping policy. In this paper, two significant challenges associated with robotic grasping in both clutter and occlusion scenarios are addressed. The first challenge is the coordination of push and grasp actions, in which the robot may occasionally fail to disrupt the arrangement of the objects in a well-ordered object scenario. On the other hand, when employed in a randomly cluttered object scenario, the pushing behavior may be less efficient, as many objects are more likely to be pushed out of the workspace. The second challenge is the avoidance of occlusion that occurs when the camera itself is entirely or partially occluded during a grasping action. This paper proposes a multi-view change observation-based approach (MV-COBA) to overcome these two problems. The proposed approach is divided into two parts: 1) using multiple cameras to set up multiple views to address the occlusion issue; and 2) using visual change observation on the basis of the pixel depth difference to address the challenge of coordinating push and grasp actions. According to experimental simulation findings, the proposed approach achieved an average grasp success rate of 83.6%, 86.3%, and 97.8% in the cluttered, well-ordered object, and occlusion scenarios, respectively.

Oriented Polymer/Metal Nanocomposites: A New Method for the Production of Polarization Dependent Color Filters

1999 ◽  
Vol 559 ◽  
Author(s):  
Yvo Dirix ◽  
Cees Bastiaansen ◽  
Walter Caseri ◽  
Paul Smith
Keyword(s):  
Absorption Spectrum ◽  
Ostwald Ripening ◽  
Incident Light ◽  
Polarized Light ◽  
Nanocomposite Films ◽  
Color Filter ◽  
Vibration Direction ◽  
Aspect Ratios ◽  
Linearly Polarized ◽  
Set Up

ABSTRACTUniaxially oriented composites of high-density polyethylene and silver nanoparticles were prepared using solution-casting, melt-extrusion and solid-state drawing techniques. The absorption spectrum in the visible wavelength range of the drawn nanocomposites was observed to strongly depend on the polarization direction of the incident light. For instance, the nanocomposites appear bright yellow or red when the vibration direction of linearly polarized light is perpendicular or parallel, respectively, to the drawing axis. The optical anisotropy of the drawn nanocomposites originates from uniaxially oriented, pearl-necklace type of arrays of nanoparticles of high aspect ratios. The absorption spectrum of the nanocomposites can be shifted to higher wavelengths using appropriate annealing procedures. The annealing results in an increased size of the primary silver particles, due to Ostwald ripening, and consequently a range of polarization-dependent colors can be generated in the drawn nanocomposites. It is suggested that the drawn nanocomposite films can be used in liquid crystal displays (LCD's) were they serve a dual purpose in combining polarization filter and color filter. The new display configuration transmits colored light in both the on- and off-state of the device, this in contrast to a conventional color LCD which only transmits colored light in the off-state. As a consequence, an enhanced brightness and light (energy) efficiency of the new display set-up is envisioned.

Modeling and Simulation for the Infrared Guidance System

2010 ◽  
Vol 40-41 ◽  
pp. 71-77
Author(s):  
Nan Li ◽  
Yan Jun Li ◽  
Yun Yan Zhang
Keyword(s):  
Control Method ◽  
Aerodynamic Force ◽  
Three Dimensional ◽  
Guidance System ◽  
Guidance Law ◽  
Detection And Tracking ◽  
Set Up ◽  
Trigger Mechanisms ◽  
Geometrical Relationship ◽  
Jamming Effect

The specific guidance simulation system for the infrared air-to-air missile is built. Seeker model including the target detection and tracking loop has simulated not only the different modes of field of view (FOV) according to the geometrical relationship between the target and missile, but also the jamming effect based on the equivalent target calculation; fuze model contains three different trigger mechanisms; guidance of missile is realized via three-dimensional proportional guidance law; the 6 DOF kinematics model and dynamic model of airframe are derived, through aerodynamic force and torque calculating, triple-channel autopilot model is set up by using the PID control method. Finally simulations under three different cases are implemented and the results show that the whole system is credible.

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