Method for seamlessly composing virtual three-dimensional building and real-scene video of real environment

A virtual three-dimensional and video technology, applied in color TV parts, TV system parts, TV and other directions, can solve the problem of unable to photograph buildings, and achieve the effect of speeding up speed and quality and improving efficiency.

Inactive Publication Date: 2009-12-16
杭州镭星科技有限公司
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AI Technical Summary

Problems solved by technology

Using a video to introduce real estate promoted by real estate agents, buildings in urban planning, and streetscapes is a powerful means, but in the current reality, it is impossible to capture

Method used

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  • Method for seamlessly composing virtual three-dimensional building and real-scene video of real environment

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Embodiment Construction

[0022] The present invention will be further described according to the embodiments below.

[0023] The method for seamlessly synthesizing a virtual three-dimensional building with a real environment real-shot video includes the following steps:

[0024] 1) Use a video camera to shoot a video on the site for building a building; the shooting start time T start , shooting location P site , the video frame rate R video , and use the GPS locator to measure the shooting location P site Longitude LON on Earth site , latitude LAT site ;Take a point M on the site used to build the building, and establish a three-dimensional Cartesian coordinate system C with M as the origin M , in the three-dimensional Cartesian coordinate system C M In , the plane established by the x-axis and the z-axis coincides with the horizontal ground, and the z-axis points to the North Pole, and the y-axis is vertical to the ground; on the boundary of the site for building buildings, sample points are t...

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Abstract

The invention discloses a method for seamlessly composing a virtual three-dimensional building and a real-scene video of a real environment, which comprises the following steps: 1) shooting a video of a site on which a building is to be built by using a camera; 2), creating a virtual three-dimensional building model in a three-dimensional graph system; 3), for each frame of image in the video, extracting scenery obstructing the site to generate a frame of obstruction image and copying the rest of the frame of image in the video to generate a background image; 4) for each frame of image in the video, drawing a building image displaying the virtual three-dimensional building model through a virtual camera arranged in the three-dimensional system; 5) overlaying the obstruction images, the building images and the background images to produce a series of new images; and 6) compacting the series of new images at a frame rate at which the video is shot to produce a new video. The method can perfectly integrate the virtual three-dimensional building into the real-scene video of the environment in which the building is to be built and powerfully represents a scene of the building to be built and the environment of the building.

Description

technical field [0001] The invention relates to a method for seamlessly synthesizing a virtual scene and a real video, in particular to a method for seamlessly synthesizing a virtual three-dimensional building and a real video of a real environment. Background technique [0002] The seamless synthesis of virtual scenery and real video is an application of virtual reality (Virtual Reality) technology. It perfectly integrates the live video and the three-dimensional graphics generated by the computer to form a video that cannot be captured in reality. . With the intensification of competition in the real estate industry, traditional display methods such as floor plans, performance maps, sand tables, and model houses have been far from meeting the needs of consumers. It is necessary to provide a true visual experience of the building to be built and its environment; in urban planning In the process, it is necessary to have a true reproduction of planning projects such as urban...

Claims

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Application Information

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IPC IPC(8): H04N5/262G06T17/00
Inventor 华炜鲍虎军秦学英何凤明
Owner 杭州镭星科技有限公司
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