数码低空摄影测量应用于大比例尺土地调查

准确、翔实的土地数据是土地调查的前提和基础,而土地数据的获取离不开测绘技术手段的支撑。航空摄影测量是我国基础测绘手段之一,随着数码相机技术的发展,数码航测技术已初见端倪,并成为当前航测领域中应用研究的热点。本文首次论述了数码低空航测手段的原理、工作流程和关键技术,分析了其相对于传统航测手段的优缺点,并结合焦作市地籍测量应用实例加以说明,最后阐明了数码低空摄影测量应用于我国土地调查的意义、可行性与高效性。

The application in the large-scale land investigation based on digital low-space air-survey

The premise and foundation of land investigation is based on accurate and detail land-data,but the acquirement of land data is in great need of surveying and mapping techniques.Aerial photogrammetry is one of chief surveying methods.With the progressing of digital camera technology,air survey based on digital camera is in preliminary advent,moreover,the one is being the research focus in air survey domain.This paper discusses the theory,work-flow and key technologies of the digital low-space survey for the first time, analyses the advantages and disadvantages about it against traditional air survey and clarifies it in details by an applying example in the cadastral survey at Jiaozuo zone.At last,it expatiates the significance,feasibility and high efficiency of this digital low-space air-survey.