A Building Texture Optimization Method Based on Oblique Photography Technology

Abstract

The invention relates to a building texture optimization method based on oblique photography technology. The specific steps are as follows: first step: blurring of building facade texture; second step: matching of main color of building texture image. The beneficial effects of the present invention are as follows: (1) Aiming at the blurred image of the building facade texture and the mottled color on each side of a single building, an MTF image restoration algorithm based on high-frequency enhancement is proposed. (2) Aiming at the problem of different color intensity of adjacent buildings, a main color matching method based on texture image is proposed.

Description

technical field [0001] The invention relates to a method for extracting urban three-dimensional data textures, in particular to a method for optimizing building textures based on oblique photography technology. Background technique [0002] Regarding the construction of digital cities at home and abroad, more research is on how to restore the geometric model of the three-dimensional modeling of the building, while the texture of the building is only an additional attribute, and there is less research, while the real texture is to build fine and real buildings. Required for 3D models. Tilt photography technology is a newly developed technology in the field of international geographic information. It uses multi-sensor integration mechanism, such as the application of new multi-line (area) array and multi-angle digital cameras, such as three-line array camera system ADS40 / 80, three-camera system Trimble's AOS, as well as the five-camera system Pictometry camera and the domesti...

AI Technical Summary

Problems solved by technology

In the actual environment, affected by various external factors, such as light diffraction, air quality, camera system factors, and internal processing processes, the image blur effect is inevitable, which affects the texture quality and visual effect to a certain extent.

In addition, although the facade texture of the building can be obtained from aerial photos, the clarity of the texture depends on the angle of shooting and the height of the floor. The side texture often has the problem of insufficient resolution, which makes the model not exquisite enough.

[0004] On the other hand, since the textures on each side of the building are selected from images taken at different shooting times and angles, it is inevitable that the color of each side of a single building is mottled, and the color intensity of adjacent buildings is different, which greatly affects the three-dimensional city. Visual consistency and aesthetics

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