摘要
车载交互系统广泛使用TFT-LCD屏幕,其主要用于显示导航地图、车辆状态信息等。论文简介了TFT-LCD屏幕工作原理,分析其显示缺陷的硬件、软件成因。论文提出了一种显示优化算法,并详细介绍了优化算法的离散余弦变换、小波域变换、字符二维度划分等环节的工作流程。理论仿真结果表明,优化算法饱和度、对比度指标更优;工程实测结果表明,优化算法能够得到更好的视觉体验。
TFT-LCD screen is widely used in vehicle interactive system, which is mainly used to display navigation maps, vehicle status information and so on. This paper introduced the working principle of TFT-LCD screen and the causes of its hardware, and software display defect has be analyzed. A display optimization algorithm is proposed in this paper. The work flow of discrete cosine transform, wavelet domain transformation and two-dimensional character division of the optimization algorithm are introduced in detail. Theoretical simulation results show that the optimization algorithm has better saturation and contrast index, and the experimental results show that the optimization algorithm is better enough to achieve a better visual experience.
作者
蔡黎
代妮娜
戴闽鲁
邓明
邱刚
王欣煜
CAI Li;DAI Nina;DAI Minlu;DENG Ming;Qiu Gang;WANG Xinyu(Chongqing Three Gorges University, Signal and Information Processing Key Lab, Chongqing 404000, China;Beijing Digital Television National Engineering Laboratory, Beijing 101000, China;Research and Development Center Room, Changan Industry （Group） Co., Ltd., Chongqing 400023, China)
出处
《电视技术》
2018年第1期48-52,共5页
Video Engineering
基金
教育部"春晖计划"资助(Z2015138)
重庆市创新创业团队资助(渝科[2016]187号)
重庆市教委科学技术研究项目资助(KJ1710249)
重庆三峡学院青年项目资助项目(16QN06)
关键词
TFT-LCD
离散余弦变换
小波域变换
二维度划分
视觉体验
TFT -LCD
Discrete cosine transform
wavelet domain transformation
two -dimensional character division
visualexperience.
