Research on the close-range photogrammetry accuracy of 3D digital interactive platform of Hunan intangible cultural heritage

Abstract This paper designed a three-dimensional digital interactive platform, which takes power supply module, image data acquisition control transmission module and ESAM as the main hardware makes it feasible to realize transmission, multiple acquisition, platform process control, encryption decryption, identity authentication. Then, through relative orientation element calculation, model point coordinate proportion coefficient deformation accuracy this realized of close-range photogrammetry, improving photogrammetry. The results show that method photogrammetry studied in can increase from 319 769 improve average value 0.4282 0.5938. In addition, performance analysis, response time is 0.32s, 96.3%, comprehensiveness detection 94.37%. Therefore, concluded using proposed paper, increased, highest, more comprehensive.