Urban panoramic dynamic display system and method based on large-screen fusion projection
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A dynamic display and large-screen technology, applied in three-dimensional systems, image data processing, 3D modeling, etc., can solve the problems of poor urban display, poor immersion of viewers, and lack of vitality
Active Publication Date: 2019-07-19
苏州华恒展览设计营造有限公司
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[0006] However, the above-mentioned existing technical solutions have the following defects: the above-mentioned technical solutions can only project static three-dimensional image data such as urban buildings and roads on the display screen, and cannot capture vehicles traveling on urban roads in real time and project them on the display screen. Therefore, it shows a static panorama of the city, which is not full of vitality, the immersion of the viewers is poor, and the display effect of the city is not good.
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Embodiment 1
[0083] refer to figure 1 , is a city panoramic dynamic display system based on large-screen fusion projection disclosed by the present invention, including a display screen, a display hall installed with the display screen, and multiple cameras for monitoring urban traffic flow. It also includes a construction module 1 , a splicing module 2 , a conversion module 3 , a matching module 4 , a first transformation module 5 , a second transformation module 6 and a projection module 7 .
[0084] Specifically, the building block 1 is used to construct a 3D model of the corresponding proportion of the city by using 3D modeling methods (including basic body, extended body, Boolean operation, rotation, stretching (or extrusion) and lofting and other modeling methods). In this embodiment, the ratio between the 3D model and the city is 1:500000. The splicing module 2 is used for splicing the projection images of multiple projectors into an overall projection image by using an image splic...
Embodiment 2
[0092] refer to image 3 , which is a method for dynamically displaying city panoramas based on large-screen fusion projection disclosed by the present invention, including a display screen, a display hall equipped with the display screen, and a plurality of cameras for monitoring urban traffic flow. It also includes the steps of:
[0093] S1. Using three-dimensional modeling methods (including basic body, extended body, Boolean operation, rotation, stretching (or extrusion) and lofting and other modeling methods) to construct a three-dimensional model of the corresponding proportion of city reduction, in this embodiment, the three-dimensional model and The ratio between cities is 1:500000.
[0094] S2. Using an image stitching method to splice the projection images of multiple projectors into an overall projection image, and store it as a reduced overall projection image result map with a set ratio. Preferably, the overall projection image result map in this embodiment is th...
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Abstract
The invention discloses an urban panorama dynamic display system and method based on large-screen fusion projection, relates to the technical field of urban panorama dynamic display, and aims to solvethe problem that the display effect is poor when an existing method for displaying a three-dimensional image is applied to urban panorama display. Key points of the technical scheme are as follows: the system comprises a construction module used for constructing a three-dimensional model of a city, a splicing module used for splicing the projection images of the plurality of projectors into an integral projection image; a conversion module used for generating a conversion equation, a matching module used for generating a matching equation, a first conversion module used for generating a firstconversion equation, a second conversion module used for generating a second conversion equation, and a projection module used for obtaining vehicle feature points and carrying out pixel conversion calculation on an overall projection image. Projection on the display screen comprises real-time projection of vehicles in a city, city panorama dynamic display is achieved, the immersion feeling of viewers is improved, and the advantage of being good in city panorama display effect is achieved.
Description
technical field [0001] The invention relates to the technical field of city panorama dynamic display, in particular to a system and method for city panorama dynamic display based on large-screen fusion projection. Background technique [0002] Large-screen fusion projection is a display system that projects 3D scenes in real time on a large-size screen. Its principle is to overlap the edges of the images projected by multiple projectors, perform geometric correction, and brightness blanking to produce a seamless, uniform color. , ultra-high brightness, ultra-large size, and ultra-large resolution, it looks like a picture projected by a projector in terms of visual sense. [0003] In the field of urban panoramic display, the existing display methods generally use digital sand tables. The digital sand table is a revolutionary innovation. On the basis of the traditional solid-state sand table, various multimedia sound and light methods, mainly dynamic projection, are added, wh...
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