A Digitization Method for Historical Aerial Photographs

An aerial photograph and historical technology, applied in the digitization of historical aerial photographs, can solve problems such as low work efficiency, and achieve the effect of improving work efficiency and rapid digitization

Inactive Publication Date: 2022-02-18
昆明市测绘研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a digitization method of historical aerial photographs, which is used to solve the problem that the digitization of historical aerial photographs must be completed by scanning and the work efficiency is low in the prior art. Digital cameras take images of historical aerial photographs, combined with computer post-processing, can quickly digitize aerial photography data, no longer need to scan historical aerial photographs, and improve the efficiency of digitizing historical aerial photographs

Method used

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  • A Digitization Method for Historical Aerial Photographs
  • A Digitization Method for Historical Aerial Photographs
  • A Digitization Method for Historical Aerial Photographs

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Embodiment Construction

[0056] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0057] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0058] figure 1 It is a schematic flowchart of a method for digitizing historical aerial photographs provided by Embodiment 1 of the present invention. see figure 1 , the method provided by the present invention may include the following steps S1-S2:

[0059] S1. Take historical aerial photos of the target with a digital camera;

[0060] Wherein, the pixel of the digital camera is not less than 100 million;

[0061] For example, the digital camera in the embodiment of the present invention can select the CMOS cam...

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Abstract

The embodiment of the present invention discloses a method for digitizing historical aerial photographs, which relates to the field of site selection and construction of airport navigation stations, urban planning, sunshine analysis, terrain analysis, public safety, and photography technology, and is used to solve the digitization of historical aerial photographs in the prior art Problems that must be done by scanning and work efficiency is low. The digitization method of the historical aerial photographs includes: taking the historical aerial photographs of the target with a digital camera; wherein, the pixels of the digital camera are not less than 100 million; after post-processing the original image output by the camera, the resolution is obtained. The output images not lower than 23μ are digitally saved. The present invention uses a high-resolution large area array digital camera to shoot images of historical aerial photographs, combined with computer post-processing, can quickly digitize aerial photographic data, no longer needs to scan historical aerial photographs, and improves the efficiency of digitizing historical aerial photographs .

Description

technical field [0001] The invention relates to the technical fields of site selection and construction of an airport navigation station, urban planning, sunshine analysis, terrain analysis, public safety, and photography, and in particular relates to a digitization method of historical aerial photographs. Background technique [0002] The original film of aerial photogrammetry has the characteristics of large format, small deformation and high geometric precision. The accuracy and intuitiveness of its image data have unique advantages, and its historical value is extremely high. Aerial photographic film, as a kind of historical archives, records in detail the changes of landform information such as city scale and facilities. Due to the limited shelf life of film materials, it is necessary to digitize them for permanent preservation. [0003] At present, the digital preservation of aerial photographic data mainly uses high-definition image scanners to scan aerial photograph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232H04N5/217H04N5/235
CPCH04N23/81H04N23/80H04N23/73
Inventor 张君华刘宗杰朱发浩姚继锋唐秀娟钟裕标王友昆高铮魏保峰张珏张宇琳
Owner 昆明市测绘研究院
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