期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2006
卷号：XXXVI Part 5
出版社：Copernicus Publications
摘要：The purpose of the introduced project is to achieve a combination of photogrammetric measurement techniques and procedures of digital image analysis in one stereoscopic evaluation system, which can be used in architectural surveying, building preservation and archaeology. Digital stereoscopic examination allows users an estimation of the spatial dimension and the surface texture of objects. The integration of automated image analysis techniques simplifies the stereoscopic measurement procedure and offers an increase in accuracy. Due to the substantial similarities of stereoscopic image pairs, correlation techniques provide measurements of subpixel precision for corresponding image points. Already within the process of image orientation this technique allows the use of natural unmarked tie points. Separate signalized control points are no longer necessary. The stereoscopic measurement process itself is simplified by an automated correlation-based depth determination for manual single point measurements. An adapted expansion algorithm for the same process even offers the possibility to measure profiles and object surfaces automatically. Additionally an included interface for the integration of tacheometric measurements and laser scanner point clouds allows a combined object evaluation. Digital surface models (DSM) can be created by triangulation and edited within the stereo model. In combination with the high resolution image material of the stereo evaluation, high-quality unwrappings, ortho images and 3D models can be generated. Taking various approaches for camera modelling into consideration, analogue and digital amateur cameras as well as panoramic cameras, can be used for stereoscopic recording in addition to the common metrical cameras
关键词：Stereoscopic Documentation; Architecture; Matching; Digital Surface Model; Scanner
