| 基于DSP的SDTV/HDTV数字电视信号格式转换卡设计 |
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| 引用本文： | 黄 翔,李德华,金良海,朱美能.基于DSP的SDTV/HDTV数字电视信号格式转换卡设计[J].计算机工程与应用,2007,43(19):108-110. |
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| 作者姓名： | 黄 翔 李德华 金良海 朱美能 |
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| 作者单位： | 华中科技大学 人工智能研究所 图像信息处理与智能控制教育部重点实验室，武汉 430074 |
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| 基金项目： | 湖北省时代科学院支持项目 |
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| 摘 要： | 设计了基于DSP的SDTV/HDTV电视信号格式转换卡。运用双线性插值的方法，在DSP上实现对图像实时的放大处理，算法已在ADSP-TS201S开发板上得到验证，效果良好。设计难点在于，数字电视信号的时钟频率很高，要处理的信号量极大，因此采用多DSP并行处理。
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| 关 键 词： | 标清转高清 DSP 双线性插值 |
| 文章编号： | 1002-8331（2007）19-0108-03 |
| 修稿时间： | 2006-11 |
Format conversion board design of Standard Digital Television(SDTV) to High Definition Television(HDTV) based on DSP |
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| HUANG Xiang,LI De-hua,JIN Liang-hai,ZHU Mei-neng.Format conversion board design of Standard Digital Television(SDTV) to High Definition Television(HDTV) based on DSP[J].Computer Engineering and Applications,2007,43(19):108-110. |
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| Authors: | HUANG Xiang LI De-hua JIN Liang-hai ZHU Mei-neng |
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| Affiliation: | State Key Laboratory for Image Processing and Intelligent Control，Institute of Artificial Intelligence，Huazhong University of Science and Technology，Wuhan 430074，China |
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| Abstract: | The circuit board design of SDTV/HDTV format conversion is proposed.Using the method of bilinear interpolation, which has been testified well on ADSP-TS201S EZ-KIT LITE evaluation board,the realization of real-time image enlargement processing based on DSP is accessible.The difficulty of the design is that the clock signal frequency of digital TV is so high that a large amount of information needs to be dealt with in a short period of time,so the method of muhi-DSPs parallel processing is employed. |
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| Keywords: | SDTV/HDTV DSP bilinear interpolation |
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