| 车载视频记录仪关键技术研究 |
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| 引用本文： | 吕先锋,王旭东,蒋朝根.车载视频记录仪关键技术研究[J].电视技术,2007,31(7):30-32. |
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| 作者姓名： | 吕先锋 王旭东 蒋朝根 |
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| 作者单位： | 西南交通大学,信息科学与技术学院,四川,成都,610031 |
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| 基金项目： | 教育部行动计划-研究生创新实践计划 |
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| 摘 要： | 设计了车载视频记录仪的硬件平台,软件部分采用H.264视频压缩标准,针对车载视频记录仪的特点,对标准算法的宏块编码类型模式选择算法进行了改进,提出一种新的快速选择算法.试验证明,该算法减少了H.264率失真优化算法中对宏块多种模式大量无效的遍历,在获得与标准算法相当的图像质量、信噪比和比特率的情况下,大大降低了多种块模式遍历算法的计算复杂度.
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| 关 键 词： | 车载视频记录仪 H.264/AVC标准 宏块编码模式 空域预测 |
| 文章编号： | 1002-8692（2007）07-0030-03 |
| 修稿时间： | 2007-05-08 |
Research on Key Technology for Vehicle Borne Video Recorder |
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| L Xian-feng,WANG Xu-dong,JIANG Chao-gen.Research on Key Technology for Vehicle Borne Video Recorder[J].Tv Engineering,2007,31(7):30-32. |
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| Authors: | L Xian-feng WANG Xu-dong JIANG Chao-gen |
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| Affiliation: | L(U) Xian-feng,WANG Xu-dong,JIANG Chao-gen |
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| Abstract: | A hardware platform for vehicle borne video recorder is designed. The H.264/AVC video coding standard is adopted in the software part and the inter-mode decision algorithm is improved. Extensive experiments show that the algorithm reduces the ineffective traversing of the H.264 RDO algorithm considerably and provides competitive performance compared to full search, with highly reduced computational complexity and very similar image quality and bit rate. |
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| Keywords: | vehicle borne video recorder H 264/AVC encoded mode of microblock spatial domain prediction |
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