| 水运交通电视监控图象传输技术研究 |
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| 引用本文： | 胡汉南.水运交通电视监控图象传输技术研究[J].交通部上海船舶运输科学研究所学报,2000(2). |
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| 作者姓名： | 胡汉南 |
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| 作者单位： | 电子信息部 |
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| 基金项目： | 交通部重点科技项目! (攻关 )(95-04-21-06 ) |
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| 摘 要： | 介绍水运交通电视监控图象通过电话线路的传输技术、相应的硬件装置、软件框图以及软件特点。特别是针对水运交通电视监控图象 ,对 JPEG编码标准作了修改 ,以进一步提高压缩比 ,以及自编调制解调器程序以充分发挥调制解调器的传输速率。最后介绍达到预期效果的系统性能测试及现场试验结果
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| 关 键 词： | 水运交通 电视监控 图象数据传输 压缩与编码 |
The Research on Image Transmission Technique of Shipping Traffic TV Surveillance |
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| Authors: | HU Han nan |
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| Institution: | Electronic Information Division |
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| Abstract: | The image transmission technique through phone channel of shipping traffic TV surveillance, corresponding hardware configuration, software flow chart and some software characteristics are described in this paper. The JPEG encoding standard is somewhat modified for shipping traffic TV surveillance image in order to increase compression ratio. The MODEM program is edited using Hayes instruction set for the actual transmission ratio to approach to the nominal transmission ratio of the MODEM. Finally the system performance test and the field test results reaching the predeterming effects are described. |
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| Keywords: | shipping traffic TV surveillance image data transmission compressing and encoding |
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