攝影測量基本原理.ppt

1、攝影測量學(xué)基本原理,適普軟件公司 研發(fā)部 2005年4月18日,SUPRESOFT INC.,SUPRESOFT INC.,兩類傳感器 面陣式（傳統(tǒng)，DMC等） 線陣式（IKNONS、SPOT、Quickbirds、Landsat 等）,SUPRESOFT INC.,VirtuoZo 處理的是面陣式傳感器的數(shù)據(jù),SUPRESOFT INC.,兩個(gè)坐標(biāo)系： 地面坐標(biāo)系 象空坐標(biāo)系,SUPRESOFT INC.,兩個(gè)坐標(biāo)系的關(guān)系： Xp/(Xg-X0)=Yp/(Yg-Y0) =Zp/(Zg-Z0)=1/ 即： V= *R*V 也即：,SUPRESOFT INC.,內(nèi)定向決定象空坐標(biāo)系與掃描坐標(biāo)的關(guān)

2、系,SUPRESOFT INC.,Image center is defined by 4 (or 8) fiducial marks located on corners (or sides of edges) of the mechanical frame of the metric camera,SUPRESOFT INC.,內(nèi)定向的結(jié)果是個(gè)紡射變化： X= x0+ a0*x+b0*y Y= y0+ a1*x+b1*y,SUPRESOFT INC.,地面坐標(biāo)可以投影到單張照片，但是單張照片無法定地面坐標(biāo),SUPRESOFT INC.,相對(duì)定向確定照片的姿態(tài),SUPRESOFT INC.,

3、SUPRESOFT INC.,Relative orientation Consecutive Mode of relative orientation the orientation of left image is fixed, which can usually be defined as “zero”, therefore the relative orientation in consecutive mode is as following: bY bZ ,SUPRESOFT INC.,Non metric camera As all the parameters of interi

4、or orientation are unknown, we can only solve eight parameters: by the solved eight parameters epipolar line image for non metric camera is absolutely possible to be obtained,SUPRESOFT INC.,絕對(duì)定向確定照片的地面坐標(biāo),SUPRESOFT INC.,Bundle of imaging rays,Space resection: reconstructing the bundle and restoring i

5、ts orientation in object space.,SUPRESOFT INC.,Direction cosine: a1 , a2 , a3 , b1 , b2 , b3 , c1 , c2 , c3,SUPRESOFT INC.,SUPRESOFT INC.,SUPRESOFT INC.,SUPRESOFT INC.,核線是用來看立體的,SUPRESOFT INC.,A conception of epipolar line all the plans passing through the photographed base B are referred to as “Epipolar Plan”, the intersection lines of which with the photos are call as “epipolar line”.,SUPRESOFT INC