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Aerial view generation method based on orthographic projection, and storage medium

An orthographic projection and orthophoto image technology, applied in the field of image processing, can solve the problems of deformation, low resolution of bird's-eye view, etc. Effect

Pending Publication Date: 2020-12-29
GUANGZHOU URBAN PLANNING & DESIGN SURVEY RES INST
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] Embodiments of the present invention provide a method, system, and storage medium for generating a bird's-eye view based on orthographic projection, which can effectively solve the problems of low resolution and serious deformation of the bird's-eye view generated by the prior art

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  • Aerial view generation method based on orthographic projection, and storage medium
  • Aerial view generation method based on orthographic projection, and storage medium
  • Aerial view generation method based on orthographic projection, and storage medium

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0035] see figure 1 , is a schematic flowchart of a method for generating a bird's-eye view view based on orthographic projection provided by an embodiment of the present invention, including:

[0036] S101. Collect the image data of the target area, arrange image control points in the target area according to the image data of the target area, and perform coordinate measurement to obtain the coordinate results of the image control points in the target area;

[00...

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Abstract

The invention discloses an aerial view generation method based on orthographic projection, and the method comprises the steps: collecting image data of a target region, arranging image control pointsin the target region, measuring the coordinates to obtain an image control point coordinate result of the target region; determining a projection axis and a coordinate system rotation angle, calculating a corresponding rotation matrix according to the rotation angle, and rotating the coordinate system; performing aerial triangulation according to the rotated image control point coordinates to obtain a measurement photo; calculating exterior orientation element data of the measurement photo, and obtaining a three-dimensional model according to the exterior orientation element data; performing digital differential correction on the three-dimensional model to generate an orthophotoquad; and carrying out image processing on the orthophotoquad to obtain an aerial view of the target region. Theinvention discloses an aerial view generation method based on orthographic projection, which can effectively solve the low resolution and serious deformation of an aerial view generated in the prior art. The invention further discloses a system and a storage medium.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a method, system and storage medium for generating a bird's-eye view image based on orthographic projection. Background technique [0002] The bird's-eye view is usually based on the principle of perspective, and it is a three-dimensional map drawn from a high point of view to look down on the undulations of the ground by using the high-viewpoint perspective method. It is an indispensable element in planning and design. [0003] In the prior art, the production methods of the bird's-eye view mainly include: (1) planning or architectural design drawing, that is, directly drawing a conceptual design drawing with a three-dimensional effect by a computer. During the drawing process, multi-point perspective projection is considered to make the two-dimensional The picture has a three-dimensional effect; (2) The camera looks around at a high viewpoint for aerial photogr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/05G06T5/00
CPCG06T17/05G06T2200/08G06T2207/30181G06T5/80G06T5/73
Inventor 程相兵杨荣帮张国锋魏峰
Owner GUANGZHOU URBAN PLANNING & DESIGN SURVEY RES INST
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