| The aerial photogrammetry is one of fundamental surveying and mapping methods in our country and of important effects in geo-data requiring and renewing. The photogrammetry has gone through two stage of analog photogrammetry and analytical photogrammetry, nowadays, is at stage of digital photogrammetry. The data from the conventional film cameras is film, and there are several procedures from film to digital image, including processing, scanning etc, it wastes much time. The digital camera can directly get digital image, productivity is improved, and it is more convenient to handle image. But the no-metric digital camera is not prepared for aerial photogrammetry, its interior orientations are unknown, and has the characteristic of unstable structure and large distortion. The parameters, such as interior orientations and distortion coefficients must be determined before the camera is used in photogrammetry. Base of those parameters, the image from digital camera is processed. The measurable research of digital camera and its application in the photogrammetry have become popular in photogrammetry field.This paper studies light-air survey based on super-light aircraft platform and large array CCD. Super-light air digital camera survey is of many good properties, such as high-resolution, high-quality air-photo, high geometric precision, advantage and low costs.The paper studies the large array CCD Digital camera to take the Aerial Photograph, and utilize the matching to finish the creation of dummy photograph. The technique has lots of trait including high-resolution, high-quality air-photo, high geometric precision, advantage and low costs.The subject Based on the theory of photogrammetry to research and discuss the new digital Aerial photogrammetry system containing the integration, camera calibration, correspond point's automatism matching , character matching and the technology of dummy photograph's matching, and finish the working of experiment reasoning and the practice application. |
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