所谓感光测定积分方法,就是使用单一密度的灰色球体(反射光)代替试片被摄体标准板。球体理想地反映拍摄景物的光亮和彩色条件。由反射光产生的密度0.60的球体灰色表面最有价值,因为它表明被摄体亮度的全部范围。对于鉴定,控制拍摄和加工过程,只用一个表示特征的密度就够了。 The so-called photogrammetric integration method is to use a single density gray sphere (reflected light) instead of the test strip subject standard plate. The sphere ideally reflects the light and color conditions of the shot scene. The spherical gray surface with a density of 0.60 produced by reflected light is most valuable because it shows the full range of the subject’s brightness. For identification, control of the shooting and machining process, only one density of features is enough.