Study On Image Acquisition Technology Based On Embedded System

We can integrate signal processing, artificial intelligence, TCP/ IP network communication protocol and control circuit into the front-end CCD image acquisition module by applying embedded system to image acquisition and processing. This will not only greatly enhance the image acquisition system's performance but also expand the functions of the system. This paper places emphasis on discussing the application of embedded system technologies, especially the latest technology– SOC (System on a Chip) in image acquisition and processing aspect. This paper places emphasis on discussing the application of embedded system technologies, especially the latest technology– SOC (System on a Chip) in image acquisition and processing aspect. The paper proposes a program of systematic solution and verifies it feasibility. Embedded system-based image acquisition module can achieve most of the traditional functions of the computer image acquisition and processing system, such as image data collection, transmission and simple image processing, and can achieve small size, low power, low cost, high integration, it 's more suitable for mass industrial applications.After gives a general design of image acquisition module this paper goes into detail of software and hardware design. On the hardware side, this paper describes the design of TCD1209D linear CCD's drive circuit and Virtex-II Pro FPGA's embedded system, and designs a custom IP core which solves the real-time data acquisition and storage of the CCD image problem by using Virtex-II Pro's internal dual-port BlockRAM. On the software side, this paper designs a driver for user IP core, and ports Embedded TCP/IP stack - uIP to embedded system, implements real-time data acquisition and storage of CCD image.When finished hardware/software design, the paper testifies system's design by using CCD driver circuit and laboratory's FPGA experiment board. Experiments show that the proposed design is entirely feasible, and the CCD image acquisition module can achieve basic functions such as the real-time acquisition, storage and transmission of CCD image.