摘要
By using image processing software,based on the coordinates of clear points in images and the theoretical coordinates of the points in the reference coordinate system,the coordinate relation multinomial of pre-and post-correction control points can be established by means of the digital image correction technique and the coefficient in the multinomial can be sought on the basis of the coordinates of a certain number of control points.Then the whole image can be re-sampled by correcting every image pixel according to the multinomial,and the linear and nonlinear deformations in the image can be corrected accurately.In archaeological studies,researchers can use the digital image correction technique to correct the whole or partial images of cultural relics,including buildings and stone carvings,reduce the deformations of images occurring in imaging processes to the limit of required accuracy,obtain integral orthophoto images by means of mosaic,and then carry out measurement,plan drawing,etc.
By using image processing software, based on the coordinates of clear points in images and the theoretical coordinates of the points in the reference coordinate system, the coordinate relation muhinomial of pre- and post-correction control points can be established by means of the digital image correction technique and the coefficient in the multinomial can be sought on the basis of the coordinates of a certain number of control points. Then the whole image can be re-sampled by correcting every image pixel according to the multinomial, and the linear and nonlinear deformations in the image can be corrected accurately. In archaeological studies, researchers can use the digital image correction technique to correct the whole or partial images of cultural relics, including buildings and stone carvings, reduce the deformations of images occurring in imaging processes to the limit of required accuracy, obtain integral orthophoto images by means of mosaic, and then carry out measurement, plan drawing, ere.
出处
《考古》
CSSCI
北大核心
2009年第7期68-73,共6页
Archaeology
基金
"十一五"国家科技支撑计划"大遗址保护关键技术研究与开发"中"文物出土现场保护移动实验室研发"课题的内容
课题批准号为2006BAK30B04
关键词
数字影像纠正
正射影像图
考古绘图
digital image correction orthophoto image archaeological drawing
