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Multi-projector fusion method based on GPU real-time video processing, and multi-projector fusion system based on GPU real-time video processing

A fusion method and real-time video technology, applied in the field of video processing, can solve problems such as high requirements for execution efficiency, inability to meet real-time processing requirements of video files, and reducing real-time response capabilities of PCs

Inactive Publication Date: 2015-08-12
BEIJING UNION UNIVERSITY
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Problems solved by technology

[0004] At present, the data processing of video files is mainly through CPU multi-thread processing, which can improve CPU utilization and speed up data processing, but only through CPU multi-thread processing requires higher execution efficiency of the algorithm and reduces PC's real-time responsiveness
Especially in the case of processing high-definition video files, the CPU multi-thread processing method cannot meet the real-time processing requirements of video files

Method used

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  • Multi-projector fusion method based on GPU real-time video processing, and multi-projector fusion system based on GPU real-time video processing

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Embodiment Construction

[0062] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments. The correspondence between constituent elements in the claims and specific examples in the embodiments can be exemplified as follows. The description herein is intended to confirm that specific examples used to support the subject matter stated in the claims are described in the embodiments, and since an example is described in the embodiments, it does not mean that the specific examples do not represent constituent elements. Conversely, even if a specific example is included here as an element characteristic corresponding to one constituent element, it does not mean that the specific example does not represent any other constituent element.

[0063] Furthermore, the description herein does not imply that all subject matter corresponding to specific examples set forth in the embodiments are recited in the claims. In other words, the d...

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Abstract

The present invention provides a multi-projector fusion method based on GPU real-time video processing, and a multi-projector fusion system based on GPU real-time video processing. According to the present invention, by designing and using an edge fusion and non-linear geometric correction parallel algorithm, and adopting a programming mode of CPU and GPU cooperative operation, the operation speed of the algorithm can be improved effectively, the consumption of the CPU resources is reduced, the dependence on the CPU calculation performance is reduced effectively. More space can be provided for the algorithm performance optimization while improving the hardware utilization rate and the calculation efficiency, so that the final projection and display effect is more natural and smooth. With the help of a DirectShow link model, the adaptive capacity of the system to a playing environment can be enhanced, the filters can be modified or added flexibly to complete the functions of the system, and users can adjust the non-linear geometric correction and edge fusion effects of the projective planes by modifying the parameters of the filters.

Description

technical field [0001] The invention relates to the field of video processing, in particular to a multi-projection fusion system based on GPU real-time video processing. Background technique [0002] As a virtual reality system, the multi-channel projection fusion system uses multiple projectors to project seamlessly unified, high-resolution perfect images and wide-angle visual scenes, and cooperates with the surround stereo system to create an immersive, An immersive virtual simulation environment. It is widely used in large-scale scene simulation environments such as traffic command and monitoring, virtual battlefield simulation, digital city planning, museums, cinemas, education and training, and tourist attractions. The multi-channel surround screen projection system is far lower than the construction cost of a professional graphics workstation, and it is flexible and easy to expand. [0003] For the multi-projection fusion of video files, first divide the video files ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/74H04N9/31G06T5/00
Inventor 袁家政刘宏哲李晓光
Owner BEIJING UNION UNIVERSITY
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