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Mixed reality illumination consistency adjusting method

A technology of mixed reality and adjustment methods, applied in image data processing, instruments, computing, etc., can solve problems such as lighting that cannot be well unified, process processing methods are rough, and realism needs to be improved.

Active Publication Date: 2021-05-25
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

Although the patent can obtain the virtual camera coordinates and the virtual world coordinate system based on the real camera coordinates, and then obtain the real world coordinate system with the help of the virtual world coordinate system, the processing method is relatively rough, and the lighting in the real world and the lighting in the virtual space are not very good. The ground is unified, and the sense of reality needs to be improved

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  • Mixed reality illumination consistency adjusting method

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Embodiment Construction

[0030] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0031] In this example, if figure 1 As shown, the mixed reality lighting consistency adjustment method specifically includes the following processes:

[0032] 1. According to the video mixing scheme, select several brightness sampling points on the object to be photographed. Sampling points can be arranged in a uniform distribution, or non-uniform distribution according to the characteristics of the object being photographed. After the setting is completed, n sampling points (small patches) S1, S2...Sn are obtained. Each sampling point Si can represent the luminance characteristics of the area Qi within a certain range. The size of the sampling point should be able to ensure that the number of pixels imaged in the video frame ...

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Abstract

The invention discloses a mixed reality illumination consistency adjusting method. The method comprises the following steps: designing and arranging sampling points and carrying out collection; mapping the coordinates of the sampling points into a virtual scene according to a mapping relation, and carrying out illumination pre-calculation processing on each sampling point; collecting a frame of video, and converting data of each sampling point into an HSV model to obtain HSV values of the sampling points; adjusting the video HSV value according to the sampling points and the calculation result; converting the frame of video picture after HSV adjustment into an RGB model, and transmitting the RGB model as a dynamic texture into a virtual scene to realize synthesis of the video and the virtual scene; and if the video picture synthesis is not completed, entering a next frame cycle, and if the synthesis is completed, releasing resources and exiting. According to the invention, the brightness of images from two different sources can be well unified, and the key technical problem in video projection type mixed reality is well solved.

Description

technical field [0001] The invention relates to the technical field of mixed reality, in particular to a method for adjusting the consistency of lighting in mixed reality. Background technique [0002] In a video transmissive mixed reality system, real-time video of the real world needs to be mixed with a 3D rendered scene in a virtual space. The lighting conditions of the virtual space are preset according to the simulated environment and controlled by the system. The lighting in the real world is determined by the lighting conditions of the user's actual use environment and is not controlled by the system. The two types of lighting are usually unable to maintain uniformity, resulting in inconsistencies in the brightness of real-time video and 3D rendered scenes in a mixed reality environment, resulting in obvious distortion, which seriously affects visual effects and realism. [0003] The patent (application number CN202011064045.7) discloses a video penetrating mixed re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T19/00G06T5/00G06T7/90
CPCG06T19/006G06T7/90G06T2207/10012G06T5/94
Inventor 苏虎刘琰马志千
Owner SOUTHWEST JIAOTONG UNIV
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