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电气电子工程paper

HDL FOR PROGRAMMABLE LOGIC WITH PROJECT
MODULE CODE: H64HPP
Project – ADC Controller Core Design
1 INTRODUCTION

两个最广泛部署的图像传感器技术CCD(电荷耦合器件)和CMOS(互补金属氧化物半导体)。这是众所周知的,CCD相机提供更高的图像质量,但苦于较低的读出速度。相反,较目前的CMOS摄像头,CCD摄像头,技术稍微降低图像质量。

 

The two most widely deployed image sensor technologies are CCD (charge coupled device) and
CMOS (complementary metal oxide semiconductor). It is  ukthesiss.com/media well known that the CCD camera offers
higher image quality, but suffers from lower read-out speed. On the contrary, compared with the
CCD camera, the current CMOS camera technology has slightly lower image quality. However, the
CMOS camera enjoys high-speed random access to the image pixels of interest which means that
data can be rapidly transferred to a digital signal processor.
One of the research projects we are investigating is full-field laser Doppler blood flowmetry, in
which an in-house designed CMOS camera route has been followed. Such an approach offers highspeed
random access to individual pixels.
Aout0
CMOS CAMERA
(32x32 pixels)
Aout1
Aout2
Aout31
C0
5-to-32 Decoder
32-to-1 Multiplexer
ADS5545 based
ADC Module
Ain ADC Controller
Core
CLKIN
CLKOUT
D
SCLK
SEN
SDATA
14
5 5
ROW
COL
C1
C2
C31
Reset
Clock40M
DataReady
ReadData
ReadAddress
ReadEnable
14
10
Xilinx Spartan-3E FPGA
(XC3S500E-FG320-5 )
Start
ReadClock

32×32的全域激光多普勒血流仪监测的数据采集系统.我们已经开发了一个满场的研究大小为32x32像素的CMOS摄像头芯片
激光多普勒血流仪监测..
Fig.1 The data acquisition system for the 32x32 full field laser Doppler blood flowmetry
We have developed a CMOS camera chip of size of 32x32 pixels for the research of full-field
laser Doppler blood flowmetry. In this chip, in order to reduce the number of analogue outputs, 32
analogue outputs rather than 1024 analogue outputs are adopted, in which 32 pixels share one


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