Search query: EMBEDDED IMAGE ACQUISITION SYSTEM

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abstract: Electro optical measurements, i.e. optical waveguides and plasmonic based electrochemical impedance spectroscopy (P EIS) are based on the sensitive dependence of refractive index of electro optical sensors on surface charge density, modulated by an AC electrical field applied to the sensor surface. Recently, P EIS has emerged as a new analytical tool that can resolve local impedance with high, optical spatial resolution, without using microelectrodes. This study describes a high speed image acquisition and processing system for electro optical measurements, based on a high speed complementary metal oxide semiconductor (CMOS) sensor and a field programmable gate array (FPGA) board. The FPGA is used to configure CMOS parameters, as well as to receive and locally process the acquired images by performing Fourier analysis for each pixel, deriving the real and imaginary parts of the Fourier coefficients for the AC field frequencies. An AC field generator, for single or multi sine signals, is synchronized with the high speed acquisition system for phase measurements. The system was successfully used for real time angle resolved electro plasmonic measurements from 30 Hz up to 10 kHz, providing results consistent to ones obtained by a conventional electrical impedance approach. The system was able to detect amplitude variations with a relative variation of 1% even for rather low sampling rates per period (i.e. 8 samples per period) The PC (personal computer) acquisition and control software allows synchronized acquisition for multiple FPGA boards, making it also suitable for simultaneous angle resolved P EIS imaging.
author_names: Mihnea Rosu-Hamzescu

Cristina Polonschii

Sergiu Oprea

Dragos Popescu

Sorin David

Dumitru Bratu

Eugen Gheorghiu
title: High speed CMOS acquisition system based on FPGA embedded image processing for electro optical measurements.
venue: The Review of scientific instruments
year: 2018

abstract: Embedded eye tracking systems usually require high performance of the physical devices on which they are implemented. Low power consumption, low heat and small size factors create barriers in decision making to define the core components of the final design of such a system. For the proposed system, a custom board was manufactured to meet these requirements. The board uses an ARM Cortex A9 based microcontroller, FPGA and two external RAM memory integrated circuits. However, in order to ensure maximal efficiency in terms of utilization of each hardware component, proper software modules should be designed. In this paper we are presenting an image acquisition architecture for eye tracking systems and discuss its performance.
author_names: Pavel Morozkin

Marc Swynghedauw

Maria Trocan
title: Design of an embedded image acquisition system
venue: 2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS)
year: 2015

abstract: Based on the requirements of miniaturization, stability and definition of the image acquisition device, an embedded Linux image acquisition and display system based on embedded system is designed. The system hardware using ARM core S3C2440 microprocessor, USB camera and LCD display to build image acquisition and display system; the software system placed Linux system as the core is built. Build hardware platform and transplant Linux operating system and related drivers, to achieve the image acquisition and display system miniaturization and stability and image quality have reached the people's requirements.
author_names: Hong He

Yang Li

Zhihong Zhang
title: Design of image acquisition system based on embedded Linux
venue: 2017 29th Chinese Control And Decision Conference (CCDC)
year: 2017

abstract: The paper analyzes the development status at home and abroad of the embedded system, the embedded application in view of the current, this paper introduces a ARM embedded image acquisition and transmission scheme based on. The program takes advantage of the powerful function of WINCE, with small size, high stability and rapid development, has completed the hardware design and software development, the basic system stability, good safety.
author_names: Cheng Xiny
title: The Design of Embedded Image Acquisition and Transmission System
year: 2015

abstract: An image acquisition system is designed based on STM32 embedded system and OV2640 camera with 200 million pixels.The basic hardware structure is analyzed,and the features of different modules are introduced briefly.Meanwhile,the software design is explained in detail.The basic process of the system initialization and the use of associated peripheral modules in the program are given.At last,the overall idea of system is introduced,and it achieves the stable operation of the system.
author_names: Tianhuang Industrial
title: Embedded Image Acquisition System Design Based on STM32 and OV2640
year: 2014

abstract: For fairly solving the problem of security monitoring,lowering the cost and improving the stability of image qcuisition,this paper describes a design of image acquisition based on ARM9 S3C2440 processor,gives the concrete realization of image acquisition,and discusses the software and hardware design of embedded image acquisition.The experiment result indicates that this system is stable and reliable,and the design scheme is feasible and effective.
author_names: Li Peng-fei
title: Design and Implementation of Embedded Image Acquisition System
year: 2013

abstract: To obtain a wider view around underwater robotic vehicle, a remote underwater dual cameras acquisition system based on V4L2 is developed. Athena III PC104 with embedded Linux uses two USB cameras for the hardware development platform. After transplanting the embedded Linux OS and drivers, the image acquisition combined with V4L2 using the X264 and FFMPEG is implemented for digital image encoding and decoding. The images are transported into two separate image channels to network via User Datagram Protocol (UDP) socket. A graphical user interface is designed using GTK toolkit for user display purpose. Experimental tests had shown that the two channel image data were able to transmit independently without much interference and data loss. In addition, the image size of 320x240 transmitting at a frame rate of 10 frames per second had shown a good quality video. The proposed acquisition system has a good scalability and offers a new approach for embedded system design for remote multi channel signal acquisition in underwater.
author_names: W P Lin

Cheng Siong Chin
title: Remote underwater dual cameras video image acquisition system using Linux based embedded PC104
venue: OCEANS 2014 TAIPEI
year: 2014

author_names: Hong Su
title: The Embedded Image Acquisition System Based on the ARM
year: 2013

abstract: This article is based on CMOS image sensor which is commonly used in image acquisition. It applies 32 bit ARM9 microprocessor S3C2410A as the CPU to control other function modules and designs embedded Arm9 image acquisition system for the realization of machine vision. The main function modules are SDRAM memory cell, image acquisition unit and Ethernet transmission module, UART serial port communication module, Flash module, power supply module, etc. Compared with machine vision systems of the traditional "image acquisition card PC terminal control device" model, the image acquisition system has advantages of small volume, low cost, low power consumption, strong real time performance, etc. And it can be used for practical application in video image monitoring, automatic detection, medical and military detection and so on. In a word, it has a good application prospect. Copyright (c) 2013 IFSA.
author_names: Niqin Jing

Yu Wang
title: Embedded ARM 9 Image Acquisition System Based on CMOS Image Sensor
year: 2014

abstract: An embedded image acquisition and transmission scheme based on WinCE is introduced,and the basic hardware design and software development are completed.The hardware used USB camera and S3C2440 processor to constitute embedded image acquisition device and connect the host through an Ethernet.The software included system software transplant and application software development.The system software included BOOTLOADER of ARM platform,WinCE system transplant and camera drive development.The application software included the design of image acquisition module and the design of image transmission module.The system has advantages of small volume,high stability and rapid development.
author_names: Yuan Zu-long
title: Design of Embedded Image Acquisition System Based on WinCE
year: 2011