Design Of Image Acquisition System Research Articles

Retracted: Design of Image Acquisition System Based on Visual Intelligent Sensor and Video Signal Processing

Retracted: Design of Image Acquisition System Based on Visual Intelligent Sensor and Video Signal Processing

Design of Image Acquisition System Based on Visual Intelligent Sensor and Video Signal Processing

With the rapid development and iteration of CMOS image sensor and other related technologies, in addition to the more advanced technology, the corresponding sensor also integrates the image signal processing system, so it is a leap for the image acquisition system. Based on this, this paper will take the visual intelligent sensor produced and developed by a semiconductor company as the hardware to complete the hardware design of the image acquisition and transmission system. In addition to the core processor of the system, this paper will also use audio and video processing chips and image data processing chips for collaborative analysis, so as to ensure the processing capacity and processing quality of the image acquisition system at the hardware design level. Compared with the traditional system, at the corresponding system software level, in order to further improve the quality of video signal processing, this paper creatively proposes a switch weighted median filter denoising algorithm, which has a significant impact on the processing of random impulse noise in video and the overall image filtering. At the same time, the algorithm also protects the edge details of the video image, thus improving the authenticity of the image and video. Based on this, this paper has built a verification platform based on supporting hardware and corresponding algorithms. Through hardware debugging and system operation analysis, when the operating frequency of the visual intelligent sensor is 100 MHz, the set acquisition depth is 10 bits, and the corresponding system collects data at a rate of 251 fps per second. In terms of the corresponding performance, the iteration number of the algorithm proposed in this paper is about 40% more than that of the traditional algorithm in unit time. In terms of the corresponding algorithm performance, the algorithm proposed in this paper is about 30% higher than the traditional algorithm. In terms of the efficiency of the corresponding image and video acquisition system, the algorithm proposed in this paper is about 44% higher than the traditional algorithm. Based on this, the system proposed in this paper has obvious advantages over the traditional algorithm.

Design of Image Acquisition System Based on STM32

In this paper, the STM32 chip with high performance, low cost and low power consumption is selected as the control unit. A highly efficient and portable image acquisition system is designed. The system uses OV7670 camera as the sensor to collect image signal, and the collected image signal is converted into digital signals and is stored temporarily in FIFO chips. Then the digital code which is stored in the FIFO chip is extracted by the STM32. The data will be displayed on the TFT-LCD color screen after processing. The image acquisition system can effectively collect the image signal, and display it.

Image Acquisition System Design of Camera Based on FPGA

It designs an image acquisition system of the camera based on FPGA. It uses a CMOS image sensor as the sensitive chip and controls the timing of image collection by designing the FPGA. FPGA transfers captured image into a PC to display. It uses the I2C bus to initiate CMOS sensor. A problem of cross-clock is solved by asynchronous FIFO. By the ping-pong operation based on two SDRAM chips to solve the problem of high speed data cache. The FPGA chip communicates signal data with PC by Ethernet port. The experiment proved that the system is able to collect 2048×1536 resolution images in a speed of 12fps.

The Design of Image Acquisition System Based on CMOS Image Sensor USB Interface

The system selected OmniVisiON company's CMOS chip OV7620, it is an integrated color camera chip, a 640 × 480 (300,000 pixels) image matrix. Considered that the CPLD control system is similar to the DMA mode of data transmission; Cypress's USB 2.0 chip is used by CY7C68013 chip. Finally, it is become the microcontroller firmware and device driver. The paper presents the design of Image acquisition system based on CMOS image sensor USB interface. Design an image acquisition and transmission system, and describes its firmware as well as the development of USB device drivers and PC-side application .

The Design of Image Acquisition System Based on CMOS Image Sensor USB Interface

The system selected OmniVisiON company's CMOS chip OV7620, it is an integrated color camera chip, a 640 × 480 (300,000 pixels) image matrix. Considered that the CPLD control system is similar to the DMA mode of data transmission; Cypress's USB 2.0 chip is used by CY7C68013 chip. Finally, it is become the microcontroller firmware and device driver. The paper presents the design of Image acquisition system based on CMOS image sensor USB interface. Design an image acquisition and transmission system, and describes its firmware as well as the development of USB device drivers and PC-side application.

A Design of Image Acquisition System Based on FPGA and USB2.0

The paper introduces a realization method of high-speed image acquisition system based on FPGA and USB2.0. After introducing the CMOS chip MT9T001 of Micron Technology, Inc. and the universal interface chip CY7C68013 of Cypress Semiconductor Corporation, we design the hardware platform of image acquisition system and the control program written by Verilog HDL language through which FPGA can simulate I2C bus to configure CMOS. Then we introduce the development of firmware, driver and application of the USB interface. This paper completed the design and the experiment of image acquisition system well. In the test, the system achieves the requirement of real-time display. The collected images are clear, which can satisfy design requests.

Critical Application Technology of PIV in Dynamic Centrifugal Test and Design Method of Instrumentation

PIV is a velocity-measuring technology commonly applied for the measurement of deformation and displacement in the field of experimental fluid mechanics, but no previous report is found for the application of this technology in dynamic centrifugal tests. As soil is a type of complicated materials with mechanical properties closely tying with the stress condition it suffered, centrifugal shaker shows great superiority to the research of soil dynamics and geotechnical earthquake engineering. PIV capable of measuring deformation and displacement of any point at any time supplies overall visible information for full understanding of failure mechanism. For only the deformation of selected points captured by transducers in current instrumentation, the application of PIV in dynamic centrifugal tests is advantageous to understand the complex behavior of soil under earthquake and high-stress loading. This paper analyses the critical technology of PIV application in dynamic centrifugal tests and proposes the requirements of image acquisition system design as well as a method, which provide some guidance and reference for construction of centrifugal shaker.

Research and Design of Image Acquisition System Using USB2.0 Interface

Image acquisition is to study an image acquisition, transmission and storage of information, is the basis of image processing technologies. Currently most of the image acquisition device through the computer interface in the image data into the computer, with high speed and large storage capacity of the computer complete the image acquisition. Traditional computer interface in image processing of data if there is a problem such as high cost, inconvenience, in response to this situation, this paper proposes a USB2.0 interface technology of image acquisition system programme.

The Design of Image Acquisition System Based on Contex-M3

A CMOS image acquisition system based on Contex-M3 is developed. In design STM32F103X is selected as the main controller, OV7670 is used for image sensors. In order to capture high-speed digital image, the FIFO buffer chip AL422B and SD Card under the control of the DMA are employed to directly transfer data. Moreover the SD card and 2.8 inch TFT LCD are selected to storage and display image data, respectively. Because of small size, low power, simple structure and low cost, the image acquisition system can provide an important reference value for development of similar system.

Design of Image Acquisition System Based on ARM&FPGA

One kind of ARM and FPGA integrated design ideas have been proposed in this paper. The cost of ARM and FPGA integrated design is not large, but it can be powerful and expand the scope of application of ARM and FPGA. The system can be divided into two parts: image acquisition and image processing (image compression and storage). The part of image acquisition is composed by the FPGA, and the part of image processing is by the ARM. The system uses high-speed SRAM switching mode “Ping-pong operation” can help to improve image acquisition speed on the part of image acquisition. In addition, the paper describes the method of image compression and image storage, JPEG2000 coding standard is used in image compression, and SQLite embedded database is used in image storage. The operation of the whole system can be stable and reliable through integrated debugging. The results show that the system can achieve the requirements of industrial site with required high acquisition of speed. Because the use of the “Ping-pong operation” in the system, the acquisition speed can be improved significantly and the effect can be reached in a high speed standard.

基于FPGA/SOPC架构的面阵CCD图像采集系统的设计

基于FPGA/SOPC架构的面阵CCD图像采集系统的设计

Design of Image Acquisition System Based on FPGA

A viable real-time image acquisition system was introduced in this paper. The EP2C35F6728C8 was usesd in this system as the core processor. By using the VHDL language and giving a simulation effect in the circumstances of QUARTUS, the collection and cache of original image was completed in the system, which could ensure the continuity and integrity of the image data. With a simple external interface circuit, it is very convenient for people to use and transplant this system. What’s more, it is also highlighted for its lower power consumption and higher speed. Thus it can be widely used in video surveillance and other fields.

The impact of networking on image acquisition system design

Widespread integration of networking technology will change the hospital imaging environment, making computational, archiving, and film production services available to network-connected modalities. This change will be reflected in the designs of the image acquisition modalities themselves. A view of the future is presented in which the modalities depend on network-provided services, simplifying the modalities' designs and making them more cost-effective. Achieving this view will require cooperative efforts by standards groups, PACS and modality manufacturers, and hospital organizations.