摘要
本文首次将分形原理应用于平板显示系统灰度图像的扫描映射,提出了平板显示系统灰度图像的最优扫描结构及分形模型,以解决平板显示系统扫描形成灰度图像过程中的时间冗余问题.将显示系统的数字显示存贮空间分切成若干个具有不同时间维数的空间划分,在此基础上导出“空间划分”和“时间灰度分形”拓扑结构的分形扫描模型及FPD离散空间的分形维数,然后根据分形模型对每一维空间划分实施自相似时间灰度分形扫描.文中从理论上证明了该模型的最优性,推导了超高显示灰度与帧频的关系,并用实验结果证明该方法可在不改变扫描频率的前提下可提高平板显示系统扫描效率及成像质量.
To solve the time redundancy of FPD gray scale imaging process, the fractal principle is firstly applied to the FPD scanning system in this paper,and the optimal scanning architecture is educed and its fractal model is proposed. Firstly, an optimal topology is constructed for digital display system whose memory space is incised into several sub-partitions with different time dimensions. Then, we established the fractal scanning model used in ＂time gray scale＂ and ＂sub-partition＂ topology, and deduced the fractal dimension of FPD discrete space. Based on the fractal model, the self-similar fractal scanning of time gray scale is carried out in every sub-partition. This paper proved the optimization of the fractal scanning architecture in theory, and the experimental results also indicated that it could raise the scanning efficiency, improve the imaging quality apparently without changing the scanning frequency of current digital flat panel display systems.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2006年第8期1376-1380,共5页
Acta Electronica Sinica
基金
上海市科委SDC重点项目(No.047062012)
上海市重点学科建设项目(No.T0103)
关键词
平板显示
最优扫描结构
时间冗余
分形扫描
灰度等级
flat panel display
optimal scanning architecture
time redundancy
fractal scanning
gray scale
