Using the Photo-CD as a source and digital memory for photogrammetric images: a report on its data compression method and the geometry of the transferred images

摘要

Abstract: The photo compact disk is on its way to becoming a very important tool for every photogrammetrist involved in digital close range applications. The maximum resolution of 2048 by 3072 pixel referring to a 24 by 36 mm negative image, respectively a resolution of 4096 by 6144 with the professional version (Pro Photo CD), leads to the expectation of a high quality standard. The presented paper deals with its data compression method, the analysis of accuracy and geometrical stability of the transferred photo-CD images as a tool for low-cost and easy analog-digital conversion of images. Because the special method of data compression it hits exactly the needs of digital photogrammetry concerning an efficient and fast data storage. !5