本文選題：FPGA　切入點：無縫拼接　出處：《浙江大學(xué)》2015年碩士論文

【摘要】：大屏幕多投影無縫拼接系統(tǒng)在大型場館展覽、交通指揮調(diào)度、公共安全管理、能源資源監(jiān)控等領(lǐng)域有著廣泛的應(yīng)用,它通過幾何校正、邊緣融合、顏色校正等技術(shù),將多臺投影機(jī)的投影畫面無縫拼接在一起,在大屏幕上組成一個完整的超大畫面,可以同時顯示更多的信息,還可以給觀眾帶來更強(qiáng)的沉浸感以實現(xiàn)虛擬現(xiàn)實。目前市場上的大屏幕多投影無縫拼接系統(tǒng)型號很多,但無論哪一種方案,視頻處理設(shè)備的成本和價格都居高不下,而且其功耗也都較大,不利于面向大眾化的推廣普及。本論文通過研究現(xiàn)有各多投影無縫拼接方案的優(yōu)缺點以及拼接融合算法,提出了一種基于FPGA的大屏幕多投影無縫拼接系統(tǒng),并設(shè)計制作了專用的視頻處理硬件設(shè)備,在實現(xiàn)投影畫面無縫拼接融合的同時,還可以實現(xiàn)低成本和低功耗。本文的主要工作及創(chuàng)新點包括：1.提出了一種基于FPGA的大屏幕多投影無縫拼接系統(tǒng)方案,設(shè)計了“軟件預(yù)處理”和“硬件實時拼接融合”分步式的工作模式；2.研究了大屏幕多投影無縫拼接系統(tǒng)所用多投影拼接融合算法,根據(jù)FPGA的特性對硬件實時拼接融合所需算法進(jìn)行了近似處理,并根據(jù)處理后的算法制定了參數(shù)文件的數(shù)據(jù)格式,使得軟件預(yù)處理階段和硬件實時拼接融合階段有了一個過渡的橋梁；3.設(shè)計制作了基于FPGA的零階插值和雙線性插值兩款拼接融合器,可實現(xiàn)對一路高清視頻信號進(jìn)行實時拼接融合處理,然后輸出兩路經(jīng)過處理的視頻投影信號；4.設(shè)計制作了一款基于FPGA的圖像分割器,可實現(xiàn)對一路高清視頻信號的分割處理,并輸出三路分割后的視頻信號；5.利用所設(shè)計制作的拼接融合器和圖像分割器,設(shè)計實現(xiàn)了1×2兩投影、1×4四投影、1×6六投影、2×2四投影和2×3六投影這5種大屏幕多投影無縫拼接方式,具有體積小、成本低、功耗低的優(yōu)點。
[Abstract]:The large screen multi-projection seamless splicing system has been widely used in the exhibition of large venues, traffic command and scheduling, public safety management, energy resources monitoring and other fields. It uses geometric correction, edge fusion, color correction and other technologies.The projection images of multiple projectors are seamlessly stitched together to form a complete super-large picture on the large screen, which can display more information at the same time, and can also bring a stronger immersive feeling to the audience to realize virtual reality.At present, there are many models of large screen multi-projection seamless splicing system, but the cost and price of video processing equipment are high, and its power consumption is high, which is not conducive to popularizing and popularizing.By studying the advantages and disadvantages of the existing multi-projection seamless stitching schemes and the fusion algorithm, a large screen multi-projection seamless stitching system based on FPGA is proposed, and a special video processing hardware device is designed and manufactured.At the same time, it can realize low cost and low power consumption.The main work and innovation of this paper include: 1.In this paper, a scheme of large screen multi-projection seamless splicing system based on FPGA is proposed, and the working mode of "software preprocessing" and "hardware real-time splicing fusion" is designed.This paper studies the multi-projection splicing fusion algorithm used in the large screen multi-projection seamless stitching system. According to the characteristics of FPGA, the algorithm needed for hardware real-time splicing fusion is approximately processed, and the data format of the parameter file is established according to the processed algorithm.The software preprocessing stage and the hardware real-time splicing fusion stage have a bridge of transition.Two splicing fusion devices, zero order interpolation and bilinear interpolation based on FPGA, are designed and manufactured, which can realize the real-time splicing and fusion of one high definition video signal, and then output two processed video projection signals.An image segmenter based on FPGA is designed and fabricated, which can realize the segmentation of one high definition video signal and output three channels of video signal.By using the splicing fusion device and image segmenter designed and manufactured, five kinds of multi-projection seamless splicing modes of 1 脳 2, 1 脳 4, 1 脳 4, 1 脳 6, 6, 6, 2 脳 24 and 2 脳 3 6 are designed and realized, which have the advantages of small volume and low cost.The advantage of low power consumption.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN791;TN946.1

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本文編號：1702444