摘要
地理国情是国情的重要组成部分,是与地理空间紧密相连的自然环境、自然资源基本情况和特点的总和。影像控制点作为地理国情重要组成之一,其数据生产以及成果质量具有重要意义[1]。当前处理影像控制点方式需大量人工操作,过程复杂且效率低下,本文深入分析影像控制点规范,提出基于GDAL的自动提取方案,并开发出影像控制点自动提取软件,可大幅度提高影像控制点生产效率,为地理国情普查提供保障。
As an import part of National Condition;Geographic condition refers to the sum characteristics of natural environment and resources closely linked to geospatial .Image control point as one of them , its production and quality is very important achievements . Current treatment methods required manual operation , complex and inefficient .After depth analysis of the specification in this paper , an automatic image control point extraction solutions based on GDAL was proposed , and implements software , which could improve production efficiency significantly .Guarantee the successful completion of the National geographic condition survey task .
出处
《测绘与空间地理信息》
2014年第6期140-142,共3页
Geomatics & Spatial Information Technology
关键词
影像控制点
地理国情普查
GDAL
影像裁切
image control point
national geographic condition survey
GDAL
image clipped
