关键词:

视频人像, 身高, 步长, 测量技术

Abstract:

Objective Through the experimental study, we explored the use of desktop mapping combined with point and line marking, then conduct reconnaissance experiments and scene reconstruction, and finally measure data of video portraits. Methods We selected 15 experimenters and used the video surveillance system to conduct the experiment and access the video portrait measurement data. Finally, we concluded an effective measurement method by the correction method of imaging scale consistency, the reproduction method of field reconstruction, and the measurement method of video portrait. Results The method can accurately measure not only static features such as height of the video portrait, but also dynamic features such as step length of the video portrait. However, due to the objective conditions, there is a certain error between the measurement data and the actual data. Conclusions More accurate data can be obtained by first using desktop mapping combined with point and line marking, then conduct reconnaissance experiments and scene reconstruction, and finally conducting video portrait measurements. After many experiments and repeated verification,the reliability of the conclusion is proved.

Key words:

video portrait, height, step length, measuring technology