scholarly journals DESIGN DETAILS OF A LOW COST AND HIGH PERFORMANCE ROBOTIC VISION ARCHITECTURE

2015 ◽  
pp. 141-156
Author(s):  
John V. Vourvoulakis ◽  
John A. Kalomiros ◽  
John N. Lygouras
Keyword(s):  
Video Processing ◽  
High Performance ◽  
Low Cost ◽  
Basic Feature ◽  
Full Detail ◽  
Robotic Vision ◽  
Multiple Camera ◽  
Video Frames ◽  
Potential Applications ◽  
Video Input

The implementation of an advanced real-time, low cost video processing platform capable of supporting a variety of demanding robotic applications is presented. The system is designed as an open project, accessible in full detail and has the potential to grow. It is based on a FPGA plus MCU architecture, allowing the implementation of combined fixed-point and 32-bit floating-point applications with optimized resource allocation. The presented platform is optimally integrated with appropriate controllers, like video-input frame grabbers for multiple camera applications, external SDRAM, as well as USB and VGA interfaces. The processing and interfacing capabilities of the proposed system are illustrated by implementing basic feature extraction and preprocessing tasks, achieving the display of processed video frames at a rate of 30 fps with resolution 640x480. The proposed architecture is evaluated in terms of resource usage, power consumption and cost. Potential applications are also discussed.

Advances in preparation, modification, and application of polypropylene membrane

2016 ◽  
Vol 36 (4) ◽  
pp. 329-362 ◽  
Author(s):  
Nurul F. Himma ◽  
Sofiatun Anisah ◽  
Nicholaus Prasetya ◽  
I Gede Wenten
Keyword(s):  
Thermal Stability ◽  
High Performance ◽  
Chemical Resistance ◽  
Low Cost ◽  
Comprehensive Overview ◽  
Preparation Methods ◽  
Good Thermal Stability ◽  
Polypropylene Membrane ◽  
Membrane Fabrication ◽  
Potential Applications

Abstract Polypropylene (PP) is one of the most used polymers for microporous membrane fabrication due to its good thermal stability, chemical resistance, mechanical strength, and low cost. There have been numerous studies reporting the developments and applications of PP membranes. However, PP membrane with high performance is still a challenge. Thus, this article presents a comprehensive overview of the advances in the preparation, modification and application of PP membrane. The preparation methods of PP membrane are firstly reviewed, followed by the modification approaches of PP membrane. The modifications includes hydrophilic and superhydrophobic modification so that the PP membranes become more suitable to be applied either in aqueous applications or in non-aqueous ones. The fouling resistant of hydrophilized PP membrane and the wetting resistant of superhydrophobized PP membrane are then reviewed. Finally, special attention is given to the various potential applications and industrial outlook of the PP membranes.

Low-Cost Image and Video Processing Using High-Performance Middleware in Single-board Computers with Open Internet Standards

2020 ◽  
Vol 18 (02) ◽  
pp. 311-318
Author(s):  
Carlos Alejandro Perez ◽  
Mario Sergio Cleva ◽  
Diego Orlando Liska ◽  
Dominga Concepcion Aquino ◽  
Claudio Rodrigues da Fonseca
Keyword(s):  
Video Processing ◽  
High Performance ◽  
Low Cost ◽  
Image And Video Processing

Low-cost, highly sensitive and stable pressure sensor based on glass fiber surfacing mat coated with graphene

2019 ◽  
Vol 13 (02) ◽  
pp. 2051002
Author(s):  
Shaowei Lu ◽  
Junchi Ma ◽  
Keming Ma ◽  
Shuai Wang ◽  
Xiangdong Yang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Glass Fiber ◽  
Pressure Sensor ◽  
High Performance ◽  
Low Cost ◽  
Epoxy Group ◽  
Pressure Sensors ◽  
Superior Performance ◽  
Filtration Method ◽  
Potential Applications

High-performance pressure sensors have caused widespread concern due to the potential applications in 3D-touch technology and wearable electronic devices. Herein, a new type of graphene pressure sensor based on the glass fiber surfacing mat coated with graphene oxide aqueous solution by a spray-vacuum filtration method and HI acid reduction method is reported. It is a simple and highly effective method to reduce graphene oxide films into highly conductive graphene films without destroying their integrity and flexibility at a low temperature based on the nucleophilic substitution reaction. The FTIR, SEM and conductivity tests indicate that the optimum time for graphene oxide to be reduced is 30[Formula: see text]min, under this condition enter the epoxy group has been reacted without damaging the regular sp2 hybrid C atom structure in graphene. The conductivity of the graphene pressure sensor is increased significantly to 23260[Formula: see text]S/m. The monotonic compressing test for 100[Formula: see text]Pa/s and the test of the metal block placement and removal demonstrate that the sensor exhibits relatively high linearity of 99.74% between the response and pressure, the advantage makes the sensor monitor pressure more accurately. More importantly, the pressure sensor based on the glass fiber surfacing mat coated with graphene shows extremely high sensitivity (0.169[Formula: see text][Formula: see text]), fast response time (251[Formula: see text]ms) and good stability for 1000 cycles. Based on its superior performance, it also demonstrates potential applications in measuring pressure and human body’s motions.

scholarly journals Tunable seesaw-like 3D capacitive sensor for force and acceleration sensing

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Jilong Ye ◽  
Fan Zhang ◽  
Zhangming Shen ◽  
Shunze Cao ◽  
Tianqi Jin ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
High Sensitivity ◽  
Capacitive Sensor ◽  
Mechanical Tests ◽  
Structure Design ◽  
Capacitive Sensors ◽  
Wearable Electronics ◽  
Potential Applications ◽  
The Stability

AbstractTo address the resource-competing issue between high sensitivity and wide working range for a stand-alone sensor, development of capacitive sensors with an adjustable gap between two electrodes has been of growing interest. While several approaches have been developed to fabricate tunable capacitive sensors, it remains challenging to achieve, simultaneously, a broad range of tunable sensitivity and working range in a single device. In this work, a 3D capacitive sensor with a seesaw-like shape is designed and fabricated by the controlled compressive buckling assembly, which leverages the mechanically tunable configuration to achieve high-precision force sensing (resolution ~5.22 nN) and unprecedented adjustment range (by ~33 times) of sensitivity. The mechanical tests under different loading conditions demonstrate the stability and reliability of capacitive sensors. Incorporation of an asymmetric seesaw-like structure design in the capacitive sensor allows the acceleration measurement with a tunable sensitivity. These results suggest simple and low-cost routes to high-performance, tunable 3D capacitive sensors, with diverse potential applications in wearable electronics and biomedical devices.

Expeditious and eco-friendly fabrication of highly uniform microflower superstructures and their applications in highly durable methanol oxidation and high-performance supercapacitors

2016 ◽  
Vol 4 (31) ◽  
pp. 12253-12262 ◽  
Author(s):  
Sivaprakasam Radhakrishnan ◽  
Hak-Yong Kim ◽  
Byoung-Suhk Kim
Keyword(s):  
Methanol Oxidation ◽  
Copper Sulfide ◽  
High Performance ◽  
Low Cost ◽  
Simple Synthesis ◽  
Potential Applications ◽  
Low Toxicity ◽  
Highly Uniform

It is important to exploit copper sulfide products with desired structures as well as their potential applications owing to their simple synthesis, low cost and low toxicity.

A high performance and low cost video processing SoC for digital HDTV systems

2011 ◽  
Author(s):  
Longjun Liu ◽  
Hongbin Sun ◽  
Wenzhe Zhao ◽  
Zuoxun Hou ◽  
Jingmin Xin ◽  
...  
Keyword(s):  
Video Processing ◽  
High Performance ◽  
Low Cost

scholarly journals Detection of Human Sperm Tracks Using Video Processing Techniques

2017 ◽  
Author(s):  
◽  
D. F. Rodríguez-Montaña
Keyword(s):  
Sperm Motility ◽  
Video Processing ◽  
Low Cost ◽  
Human Sperm ◽  
Individual Characteristics ◽  
Connected Components ◽  
Technological Support ◽  
Video Frames ◽  
Precise Diagnosis ◽  
The Individual

Sperm motility analysis is very important for human fertility assessment. It is often carried on manually, but this could be susceptible to mistakes due to the nature of procedure. In addition to being time-consuming, results are merely subjective and non-repeatable. In order to overcome this, we present a semi-automated algorithm that tracks accurately the sperm movements. Adaptive Gaussian models are implemented for detecting moving spermatozoa and segment them throughout video frames. Morphological operators and connected-components labeling are applied to reduce noise and calculate centroids, respectively. Then, the Munkres algorithm along with the Kalman filter are used for the purpose of assigning centroids to tracks. Finally, tracks are displayed on screen. Outcomes show a 90.91 % of accuracy regarding to manual analysis. This algorithm aims only to detect spermatozoa movement and trace its displacement in video for human sperm samples. Moreover, it allows andrology experts to perform a more exact analysis of the individual characteristics of spermatozoa, having so a low cost, accurate and repetitive technological support that will allow them to emit more precise diagnosis. Thus, this method will help specialists to reduce time periods and make more objective analysis of sperm motility. In this way, fertility diagnosis will be more reliable.

scholarly journals Detection of Human Sperm Tracks Using Video Processing Techniques

2017 ◽  
Author(s):  
◽  
E. E. Roa Guerrero
Keyword(s):  
Sperm Motility ◽  
Video Processing ◽  
Low Cost ◽  
Human Sperm ◽  
Individual Characteristics ◽  
Connected Components ◽  
Technological Support ◽  
Video Frames ◽  
Precise Diagnosis ◽  
The Individual

Sperm motility analysis is very important for human fertility assessment. It is often carried on manually, but this could be susceptible to mistakes due to the nature of procedure. In addition to being time-consuming, results are merely subjective and non-repeatable. In order to overcome this, we present a semi-automated algorithm that tracks accurately the sperm movements. Adaptive Gaussian models are implemented for detecting moving spermatozoa and segment them throughout video frames. Morphological operators and connected-components labeling are applied to reduce noise and calculate centroids, respectively. Then, the Munkres algorithm along with the Kalman filter are used for the purpose of assigning centroids to tracks. Finally, tracks are displayed on screen. Outcomes show a 90.91 % of accuracy regarding to manual analysis. This algorithm aims only to detect spermatozoa movement and trace its displacement in video for human sperm samples. Moreover, it allows andrology experts to perform a more exact analysis of the individual characteristics of spermatozoa, having so a low cost, accurate and repetitive technological support that will allow them to emit more precise diagnosis. Thus, this method will help specialists to reduce time periods and make more objective analysis of sperm motility. In this way, fertility diagnosis will be more reliable.

A review on the development of conjugated polymer-based textile thermoelectric generator

2021 ◽  
pp. 152808372199673
Author(s):  
Vivek Jangra ◽  
Subhankar Maity ◽  
Prashant Vishnoi
Keyword(s):  
Conjugated Polymers ◽  
Silicon Germanium ◽  
High Performance ◽  
In Situ Polymerization ◽  
Low Cost ◽  
Lead Telluride ◽  
Energy Scavenging ◽  
Organic Conjugated Polymers ◽  
Potential Applications ◽  
And Performance

Thermoelectric (TE) materials based on conjugated/conductive polymers can directly convert heat into electricity, and thus found promising applications in energy scavenging and cooling technologies. The performance of these thermoelectric materials is governed by different parameters like the nature of the material, thermal stability, electrical conductivity, Seebeck coefficient, and thermal conductivity. Although the traditional inorganic semiconductor materials such as PbTe (Lead Telluride), Bi2Te3 (Bismuth Telluride), SiGe (Silicon-Germanium), SnSe (Tin Selenide), and Skutterudite (CoAs2) are giving high performance, they have some inherent limitations, such as poor processability, toxicity, rare availability, and high cost of manufacturing. Whereas, organic conjugated polymers such as polyacetylene (PA), polyaniline (PANi), Poly(3-hexylthiophene) (P3HT), polypyrrole (PPy), poly 3,4-ethylenedioxythiophene (PEDOT), etc. have low cost of synthesis, light in weight, low toxicity and better processibility. Organic textile thermoelectric generators (T-TEG) can be prepared by in-situ polymerization of the conjugated polymers onto textile substrates. This article reviews the preparation, design and performance of these T-TEGs. Various approaches and scopes of improvement of efficiency of the thermoelectric effect of the T-TEGs are discussed. Various potential applications of the T-TEG in different fields are also described.

Low-Cost Image and Video Processing Using High-Performance Middleware in Single-board Computers with Open Internet Standards

2019 ◽  
Vol 18 (02) ◽  
pp. 311-318
Author(s):  
Carlos Alejandro Perez ◽  
Mario Sergio Cleva ◽  
Diego Orlando Liska ◽  
Dominga Concepcion Aquino ◽  
Claudio Rodrigues da Fonseca
Keyword(s):  
Video Processing ◽  
High Performance ◽  
Low Cost ◽  
Image And Video Processing
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