使用區域二維雙線性內插法設計視訊格式轉換器

Design of Scan Converter Using the Locally 2-D Bilinear Interpolation

黃炳源(PING-YUAN HUANG)

指導教授 ： 蔡明傑

大同大學/電機資訊學院/電機工程學系所/碩士(2005年)

摘要

本論文主要為研究及設計以雙線性內插法為基礎的視訊格式轉換器，加上二維信號向量的判斷使得轉換後的影像結果有較高的PSNR指數，特別是在邊緣的區域，透過我們所提出的演算法更有明顯的改善，另外由於本文所提的演算法較其他演算法簡潔及高效率，使得本演算法更容易使用FPGA實現硬體。
根據我們經過軟體模擬的結果顯示，使用我們所提的演算法比較其他的演算法PSNR可提高約1 dB ，並且經過FPGA完成硬體實現可使用非常少的內部記憶容量(on chip 9.6KB)，不必使用任何外部記憶器便可即時轉換至1024*768 (60畫面/每秒)畫面格式。

關鍵字

內插法 ； 二維雙線性 ； 即時

並列摘要

This thesis proposes an implementation of a scan conversion. The basis of Bi-linear interpolation and 2-D vector method can achieve higher PSNR of the output image quality. The algorithm presents of interpolation when compared with the traditional algorithms, particularly in the edge regions. In addition, the proposed method can be easily implemented.
Personal computer simulations using read images performance of the proposed algorithm. The performance evaluation is base on the PSNR between the original and reconstructed image, and the results were shown that about 1 dB better then the other algorithms. Besides, it also reveals that the novel method can process high-resolution, with color picture of size up to 1024*768 pixels at real-time video of 60 frames/sec. The implementation can under less embedded memory (on chip 9.6KB) requirement.

並列關鍵字

2-D Bi-linear ； FPGA ； Interpolation ； PSNR ； Real-time

參考文獻

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