基于分段伽马变换的医用LED显示控制系统设计  

Design of medical LED display control system based on segmented Gamma transform

作　　者：尹景隆 程宏斌[1,2,3] 王瑞光 赵健博[3] 袁庆海 YIN Jinglong;CHENG Hongbin;WANG Ruiguang;ZHAO Jianbo;YUAN Qinghai(Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;University of Chinese Academy of Sciences,Beijing 100049,China;Changchun Cedar Electronics Technology Co.,Ltd.,Changchun 130103,China;Second Hospital of Jilin University,Changchun 130041,China)

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院大学,北京100049 [3]长春希达电子技术有限公司,吉林长春130103 [4]吉林大学第二医院,吉林长春130041

出　　处：《现代电子技术》2019年第24期20-24,共5页Modern Electronics Technique

基　　金：“十三五”国家重点研发计划（2017YFB0404800）;长春市地院合作项目(17DY016)~~

摘　　要：为了满足大尺寸高清医用显示系统的需求,设计基于FPGA的医用大尺寸高清LED显示控制系统,该系统由HDMI接口信号处理模块、FPGA控制模块、千兆网接口模块和驱动电路等模块组成,利用分段伽马的设计方法来保证在高灰度、中间灰度和低灰度时显示屏显示的特性曲线均严格符合DICOM曲线,并在每一段伽马基础上进行亮度校正,保证整屏在各灰度级下的一致性,来实现医学影像数据的处理和显示。实验测试表明,该新型LED医用显示控制系统满足医用要求,具有较强的实用性。A big-size high-definition medical LED display control system based on FPGA is designed to meet the requirements of large-size high-definition medical display system. This system is composed of HDMI interface signal processing module,FPGA control module,Gigabit Ethernet interface module,and driving circuit and other modules. The design method based on segmented gamma transform is used to ensure that the characteristic curve displayed by the display screen in high gray level,middle gray level and low gray level are in strict conformance with DICOM curve,and then the brightness calibration is carried out on the basis of each segment of gamma to ensure the consistency of the whole screen at each gray level,so as to realize the processing and display of medical image data. Experimental testing results show that the new LED medical display control system can meet medical requirements and has stronger practicability.

关 键 词：医用LED显示 控制系统 伽马变换 亮度校正 影像数据处理 结果分析 

分 类 号：TN876-34[电子电信—信息与通信工程] TP273[自动化与计算机技术—检测技术与自动化装置]