Close-range photogrammetry foundation pit monitoring mark point

• Main Authors: LIU NING, LIU DAN, HAN MENGYUE, LI HANBING, WANG PAN, GU ZHANGCHUAN, LING QING, WANG CHUNTAO, WANG BIN
• Format: Patent
• Language: Chinese; English
• Published: 03.06.2022
• Subjects: GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

The utility model discloses a close-range photogrammetry foundation pit monitoring mark point, which comprises a mark plate, a front side plate (1) and a bottom plate (3), the lower edge of the front side plate (1) is connected with the upper edge of the bottom plate (3) in a tiled state, the lower edge of the front side plate (1) is vertically and fixedly connected with the upper edge of the bottom plate (3) in a three-dimensional state, and the mark plate is fixedly arranged on the front side plate (1). The utility model is obtained by splicing a plurality of plates, and the six parts adopt a black and white alternate mode, so that the contrast ratio is increased, and a computer can identify artificial mark points in close-range photogrammetry more conveniently. 本实用新型公开了一种近景摄影测量基坑监测标志点，包括标志板、前侧板（1）和底板（3），平铺状态下前侧板（1）下边缘连接底板（3）上边缘，折叠成立体状态时前侧板（1）下边缘垂直固定连接底板（3）上边缘，标志板固定安装在前侧板（1）上。本实用新型采用多块板材拼接获得，六个部分采用黑白相间的方式，增加了对比度，更方便计算机识别近景摄影测量中的人工标志点。