在刑事照相中,有时需要采用偏角摄影方法来记录物证,但所获得的影像会因为透视而产生变形,传统校正方法主要是利用光路可逆原理在放大过程中对变形影像进行校正。使用数字图象处理软件中的透视校正技术,同样可以有效处理图像的变形,与传统方法相比,操作更为方便。 In criminal photography, the photogrammetry is sometimes used to record evidence, but the obtained image will be distorted due to the perspective. The traditional correction method mainly utilizes the reversible principle of the optical path to correct the deformed image during the magnification process. The use of perspective correction technology in digital image processing software can also effectively handle the deformation of an image, making it easier to operate than conventional methods.