A Survey of Potatoes Image Segmentation Based on Machine Vision

2019 ◽  
pp. 1-38 ◽  
Author(s):  
Navid Razmjooy ◽  
Vania Vieira Estrela ◽  
Hermes Jose Loschi
Keyword(s):  
Quality Control ◽  
Image Segmentation ◽  
Machine Vision ◽  
Real Time ◽  
Low Cost ◽  
Agricultural Products ◽  
The Other ◽  
Vision Systems ◽  
Agricultural Industry ◽  
Long Time

The quality control of the agricultural products, which in many cases is through intuitive observation of the visible features of the product, plays a key role in the survival of the agricultural industry. For a long time, the qualitative categorization of these products has been performed by trained people who search products for the specific characteristics. On the other hand, hard and repetitive working can cause people to make some mistakes in computing the quality control errors. Hence, by entering the machine vision systems into this subject, they turned into a reliable, low-cost and real-time technology. Despite the existence of machine vision systems in this process, there are still major challenges in categorizing agricultural products in terms of quality, size, shape, and examination of defects. Potato is one of the most important agricultural products that is produced and has a high application. Unfortunately, it suffers from various types of diseases and defects. Hence, its quality control has a particular importance.

Efficient and Robust Approach for Heartbeat Detection of ECG Signal

2019 ◽  
Vol 29 (08) ◽  
pp. 2050133
Author(s):  
Anas Fouad Ahmed ◽  
Mohammed Abdulmunem Ahmed ◽  
Hussain Mustafa Bierk
Keyword(s):  
Real Time ◽  
Low Cost ◽  
Suggested Method ◽  
The Other ◽  
Ecg Signal ◽  
Excellent Performance ◽  
Robust Approach ◽  
Different Types ◽  
Three Stages ◽  
Electrocardiogram Ecg

This paper introduces an efficient and robust method for heartbeat detection based on the calculated angles between the successive samples of electrocardiogram (ECG) signal. The proposed approach involves three stages: filtering, computing the angles of the signal and thresholding. The suggested method is applied to two different types of ECG databases (QTDB and MIT-BIH). The results were compared with the other algorithms suggested in previous works. The proposed approach outperformed the other algorithms, in spite of its simplicity and their fast calculations. These features make it applicable in real-time ECG diagnostics systems. The suggested method was implemented in real-time using a low cost ECG acquisition system and it shows excellent performance.

scholarly journals Low-cost laser measurement gauge for real-time quality control of boards and sheets production

2020 ◽  
Vol 9 (9) ◽  
pp. e100997079
Author(s):  
Marlene Correa Henrique ◽  
Luiz Felipe Gonçalves Dib ◽  
Eduardo Acedo Barbosa
Keyword(s):  
Quality Control ◽  
Real Time ◽  
Production System ◽  
Low Cost ◽  
Laser Beams ◽  
Thickness Variation ◽  
Laser Measurement ◽  
Transparent Plastic ◽  
Plastic Films ◽  
Thickness Variations

This paper describes the conception, the development and the testing of a prototype of a simple and versatile device for micro displacement measurement and thickness monitoring of paper sheets and opaque or transparent plastic films during their fabrication. The device works based on triangulation using low power red diode laser beams for the measurements and low-cost Silicon photodiodes for light detection. The system reproductibility was evaluated as well as experimental simulations for thickness variation detection on adhesive tapes were carried out. The results showed that the gauge is capable to detect and measure thickness variations smaller than 5 µm in real time and can be easily implemented in a production system.

scholarly journals GPRS-BASED REMOTE SENSING AND CLIMATE CONTROL SYSTEM USING CMOD CPLD

2014 ◽  
pp. 68-73
Author(s):  
Wael M. El-Medany
Keyword(s):  
Remote Sensing ◽  
Real Time ◽  
Low Cost ◽  
Web Design ◽  
Climate Control ◽  
Asic Design ◽  
Long Time ◽  
Programmable Logic Devices ◽  
Hardware Description ◽  
User Friendly

This paper presents the design and VLSI hardware implementation of a remote sensing system for humidity and temperature in real time. The remote monitoring of the system based on a web design by using GPRS (General Packet Radio Service) network. Since full custom ASIC design takes long time with high cost, programmable logic devices as a programmable ASIC is a better choice for rapid design process and reasonable prices. The design has been described using VHDL (VHSIC Hardware Description Language), and then implemented in hardware using CoolRunner2 CPLD from Xilinx to achieve low cost with rapid prototyping. The design has been simulated and synthesized using Xilinx ISE 6.2i software tools, then test in hardware level using Digilent Spartan 3 starter kit as a hardware tools. The design offers a complete, low cost, powerful and user friendly way of 24 hours real time monitoring system.

REAL-TIME MACHINE VISION SYSTEMS

1987 ◽  
Vol 41 (2) ◽  
pp. 173-180
Author(s):  
Kam W. Wong
Keyword(s):  
Solid State ◽  
Machine Vision ◽  
Real Time ◽  
Three Dimensional ◽  
The United States ◽  
Image Correlation ◽  
Software Systems ◽  
Vision Systems ◽  
Camera Systems ◽  
Recent Developments

Recent developments in machine vision systems, solid state cameras, and image processing are reviewed. Both hardware and software systems are currently available for performing real-time recognition and geometric measurements. More than 1000 units of these imaging systems are already being used in manufacturing plants in the United States. Current research efforts are focused on the processing of three-dimensional information and on knowledge-based processing systems. Five potential research topics in the area of photogrammetry are proposed: 1) stereo solid state camera systems, 2) image correlation, 3) self-calibration and self-orientation, 4) general algorithm for multistation and multicamera photography, and 5) artificial photogrammetry.

scholarly journals Design of an Attitude and Heading Reference System Based on Distributed Filtering for Small UAV

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Long Zhao ◽  
Qing Yun Wang
Keyword(s):  
Real Time ◽  
Reference System ◽  
Low Cost ◽  
Attitude Estimation ◽  
The Real ◽  
Small Uav ◽  
Development Procedure ◽  
Long Time ◽  
Initial Attitude ◽  
Distributed Filter

A development procedure for a low-cost attitude and heading reference system (AHRS) based on the distributed filter has been proposed. The AHRS consists of three single-axis accelerometers, three single-axis gyroscopes, and one 3-axis digital compass. The initial attitude estimation is readily accomplished by using the complementary filtering. The attitude estimation for UAV flying in the real time is realized by using the three low orders EKF. The validation results show that the estimated orientations of the developed AHRS are within the acceptable region, and AHRS can give a stabilized attitude and heading information for a long time.

Low-Cost, Real-Time Inspection of Oranges Using Machine Vision

2000 ◽  
Vol 33 (19) ◽  
pp. 291-296 ◽  
Author(s):  
E. Moltó ◽  
N. Aleixos ◽  
J. Blasco ◽  
F. Navarrón
Keyword(s):  
Machine Vision ◽  
Real Time ◽  
Low Cost
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