jacquin 中文意思是什麼
jacquin
解釋
哈金-
The jacquin algorithm of fractal image coding is modified according to the modern optimization theory. the aim is to reduce the coding time
本文採用現代優化演算法對分形圖像壓縮編碼的簡庫恩演算法進行改進，以期達到在不降低分形編碼峰值信噪比和壓縮比的前提下使編碼時間減少的目的。 -
At first the problem of the matching search of domain and range in the jacquin algorithm of fractal image coding has been analyzed and the result of it belonging to the np _ hard has been found
首先經過分析發現簡庫恩演算法中的定義域、值域匹配搜索問題屬于組合優化問題中的np ? hard ，並把組合優化方法應用於分形圖像壓縮編碼的搜索過程。 -
Then, in the second chapter, we generalize the mathematical principle of fractal image compression. in the third chapter, we introduce jacquin ' s fractal image compres - sion method and fisher ' s self - adapted quadtree image compression method
第二章給出了分形壓縮編碼的數學原理和理論基礎。第三章介紹了jacquin的分形壓縮編碼方法和fisher的自適應四叉樹編碼方法。 -
On the basis of the new affine transformation and self - adapted quadtree im - age compression method, we bring forward a new image compression method. experiments show that the psnr can reach 28. 7db at the compression ratio of 22. 4 for 256 x 256 x 8 " lena " image, better than jacquin [ 1 ], fisher [ 13 ] and yao zhao [ 12 ] ' s method. at last, we point out the defects of the method and program, bring forward some ways to be improved
並介紹了用此演算法編寫的程序，給出了實驗結果，實驗結果顯示「 lena 」 256 256 8圖象在psnr等於28 . 7時，壓縮比可以達到22 . 4 ，比fisher ， jacquin ，和趙耀等人的結果都有一定程度的改進，文章最後指出了演算法和程序的不足，提出了一些改進的方向。
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