高分辨率CCD压缩视频的快速存取及实现

J4 ›› 2012, Vol. 29 ›› Issue (3): 265-268.

高分辨率CCD压缩视频的快速存取及实现

陈苏婷, 张燕

南京信息工程大学江苏省气象探测与信息处理重点实验室, 江苏南京 210044

收稿日期:2011-05-16 修回日期:2011-06-08 出版日期:2012-05-28 发布日期:2012-05-22
通讯作者: 陈苏婷（1980-），女，江苏省南京人，博士，副教授，主要从事实时信号处理研究。 E-mail:sutingchen27@163.com
基金资助:
江苏省产学研联合创新资金项目（BY2009105）、中国博士后科学基金（2011M500940）

Quick access method and realization of high resolution CCD compressed video

CHEN Su-ting, ZHAN Yan

Jiangsu Key Laboratory of Meteorological Observation and Informaiotn Processing， Nanjing University of Information Science and Technology， ,Nanjing 210044, China

Received:2011-05-16 Revised:2011-06-08 Published:2012-05-28 Online:2012-05-22

摘要/Abstract

摘要：

针对航测高分辨率CCD巨量压缩视频数据的存取，提出了一种基于文件结构的快速存取系统方案，并给出了该方案在实际存储器中的实现结构。该存取系统主要由图像基本信息和详细信息组成。图像基本信息包括帧号、缩略图、编码长度和地址。通过图像帧号获得图像的基本信息，实现快速浏览；并可进一步读取任意帧图像的详细编码信息。同时，构造了基于小波变换的缩略图方法，并通过对相关存取结构的设计，给出了整个存取系统在存储器中的实现。通过对该系统的研究实现，可高效快捷的实现对任意帧图像数据的快速存取和查找，大大提高了工作效率。

关键词: 图像与信息处理, 快速存取, 文件, 小波变换

Abstract:

Aimed at the access of high resolution CCD compressed video in aerial photography and measurement, a quick access design scheme based on document structure is put forward. The access system is consisted of image basic information and image detail information. and The realization structure of the system is proposed in practical memory. On the one hand, image basic information includes frame number, thumbnail, encoding length and address. Through frame number, image basic information is acquired and quick view is implemented. Furthermore, detailed encoding information could be accessed through related image detailed information. On the other hand, thumbnail displaying method based on wavelet transform is designed. Through above design of basic information and detailed information, the whole access design has been realized. As the whole access system of compressed high-resolution CCD data, quick view and access is implemented rapidly and efficiently.

Key words: image compression, quick access, document, wavelet transform

中图分类号:

TP391

陈苏婷, 张燕. 高分辨率CCD压缩视频的快速存取及实现[J]. J4, 2012, 29(3): 265-268.

CHEN Su-ting, ZHAN Yan. Quick access method and realization of high resolution CCD compressed video[J]. J4, 2012, 29(3): 265-268.

参考文献

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