太阳影子定位问题研究

Research on the Location of Sun Shadow

针对太阳影子定位问题,通过对固定直杆影子长度和位置等参数的分析,构建数学模型。文章首先围绕三角形的边角关系分析影子长度变化曲线,进而结合最小二乘法建立优化模型,确定视频拍摄的日期和地点。该模型在视频数据分析,尤其是刑侦领域,具有重要意义。

Aiming at the problem of sun shadow localization, the mathematical model is constructed by analyzing the parame-ters such as the length and position of the fixed pole.This paper first analyzes the shadow length variation curve around the cor-ners of the triangle. And then combined with the least squares method to establish an optimization model to determine the date and location of video capture. The model is o f great significance in video data analysis, especially in the field of criminal inves-tigation.