Application of approximation value to revise diagnosis matrix in fuzzy diagnosis process 貼近度對(duì)模糊診斷矩陣的實(shí)時(shí)修正應(yīng)用研究
Lastly , aiming at the poor results which all current algorithms do for directional textures , and cannot synthesis texture directly , aiming at the particularity of this kind of textures , we bring forward the conceptions of non frontal parallel textures and frontal parallel textures . by analyzing texture ' s direction through fourier spectrum , we introduce the conception of main direction , and solve the approximation value of texture ' s main direction by discrete approximated approach . by this way , we can synthesis indirectly simple structural non frontal parallel textures 最后針對(duì)現(xiàn)有算法對(duì)帶有方向的紋理合成效果差,無(wú)法直接合成紋理圖像的難點(diǎn),本論文首先提出了非正平行紋理與正平行紋理的概念,分析了它們之間的內(nèi)在聯(lián)系,引入了兩個(gè)角度參數(shù)來(lái)描述紋理的朝向,采用傅立葉頻譜法分析紋理的方向特性,并提出了紋理主方向的概念,本論文引入離散逼近的方法來(lái)求解出紋理主方向的近似值,這樣我們就能用一種間接的方法合成簡(jiǎn)單的結(jié)構(gòu)性非正平行紋理。