The Implementation Of Projection Integration System Based On GPU Operation

With the development of The Time, more and more digital image technology has been used in all aspects of human life, among them, the projection technology is used in various business activities,large blossoming in the exhibition very ofen,. At the same time, because the digital development and progress of science and technology, the visual effect of the appreciation level and the vision is becoming more and more high, especially in recent years, the projection effect produced a revolutionary progress, people are constantly pursue beautiful large screen, pure color, high resolution display effect. To command the monitoring center, the establishment of the network management center, small to video conference, academic report, technology lectures and multi-functional conference room, the big picture, more color, high brightness, high resolution display demand more and more strong. And to achieve more ambitious, majestic projection effect, it is necessary to adopt the method of multiple screen splicing. As a result, the projection integration becomes a crucial technology.However, there are still many deficiencies of projection technology, which is difficult to meet the needs of the market. With high costs, only large businesses will only be used in the exhibition, the characteristics of the fusion machine must be used for fusion makes for use for a long time under the condition of purchase cost and maintenance cost is high. Projection fusion technology is a technology that very dependent on hardware, with the continuous upgrading of hardware, how to utilize the existing resources for the development of maximum efficiency, whether there is a kind of method does not require the fusion machine can be fusion is a problem wich ergent to be solved in currently industry.In2014, Qingdao "the ideal garden" project that completed by me and the team has met such a problem, we needed to build a 78 m long, 4 m high animation projection, the customer requested the grandeur of the artistic effect and good fusion effect of projection, and budget was limited, couldn’t use expensive fusion machine.In order to solve this problem, this paper combined with the actual case, based on GPU computing developed a new fusion technology. Through reasonable design of application framework, analysis of the principle of the integration, the integration is needed in the calculation of the data distribution, at the same time using CPU and GPU calculation and processing of image, give full play to the GPU parallel computing faster than the characteristics of the CPU, the small image data under the condition of large amount of calculation, transfer the partial data GPU computation, to make full use of the hardware environment, saving resources, to enhance the efficiency of the operation. In the end, on the presentation of art and technology innovation, has submitted a satisfaction to customers.