Then 3 kinds of recognition algorithm , including zeroth order moments , gray histogram and color histogram , have been tested for this system 分別用幾何零階矩和圖像的灰度、彩色直方圖的方法進(jìn)行識(shí)別。
The subwavelength optical elements with features smaller than the wavelength of the incident illumination do not give rise to diffraction other than the zeroth orders in the substrate and incident medium 亞波長(zhǎng)光學(xué)元件的特征尺寸小于入射光波波長(zhǎng),特點(diǎn)是僅有零級(jí)反射波和透射波存在。
At the position of the zeroth order , all wavelengths from each slit add constructively ; this produces the bright white light you see as the zeroth order at the center of the back focal plane of the objective ( figures 3 and 4 ) 在零級(jí)位,從柵格標(biāo)本的各個(gè)窄縫中發(fā)出的所有波長(zhǎng)會(huì)產(chǎn)生相加的干涉,在物鏡的后焦面中心會(huì)看到明亮的白色像。
Zeroth order ignorance ( 0oi ) , the application of already - known information , requires a stable , detailed , and highly repeatable process - basically a streamlined version of the same process that was used when the knowledge was first successfully implemented after being obtained 零級(jí)無知,已經(jīng)知道信息的應(yīng)用,需要穩(wěn)定,詳細(xì),和高度可重復(fù)的過程基本上是同樣過程的串行,當(dāng)知識(shí)獲得了之后就馬上實(shí)現(xiàn)。
Form the experiment results , we can see that zeroth order moments method is not appropriate for this reconstruction and recognition system because it discards all the detail information of an image color and texture . however , considering on all pixel color , color histogram is suitable for this recognition system 從仿真結(jié)果可以看出,由于零階矩沒有利用圖像的全部顏色細(xì)節(jié)和紋理信息,識(shí)別效果不是很好,而彩色直方圖比較的方法是針對(duì)于上述飛機(jī)模型庫(kù)進(jìn)行識(shí)別的合適的方法。