本研究对比了荒漠化无人机样地监测常用的影像处理软件:Agisoft Metashape Profes-sional(64 bit)、Context Capture Center Engine、Pix4Dmapper和大疆智图(DJI Terra).通过对比地面分辨率、总耗时、重投影误差RMS、正射影像建图覆盖面积和正射影像精度误差等指标,表明:Agisoft Metashape Professional(64 bit)在时间、精度和质量方面表现良好,适用于低空小面积的影像合成;DJI Terra在处理无明显地表物时功能相对较差;Pix4Dmapper生成的影像具有纵向波纹;Context Capture Center Engine整体色彩较真实,但在水域处理上不如其他3款软件.建议在荒漠化无人机样地监测中,使用处理时间、精度及质量都较好的Agisoft Metashape Professional(64 bit)软件.
Comparative Analysis of Four Process Softwares for Desertification Drone Monitoring Images
In this study four conventional process software for desertification drone monitoring images,such as Agisoft Metashape Professional(64 bit),Context Capture Center Engine,Pix4Dmapper and DJI Terra,were contrasted.Through contrasting ground resolution,total processing time,reprojection error RMS,mapping coverage area of ortho-graphic image and accuracy error of orthographic image,the results showed that Agisoft Metashape Professional(64 bit)performed well in terms of time,accuracy and quality,which was suitable for synthesizing images of small areas at low altitudes.DJI Terra was relatively poor in handling areas without prominent surface features.Pix4Dmapper pro-duced images with vertical ripples.Context Capture Center Engine produced images with realistic overall colors,which was less effective in water feature processing compared with other software.In desertification drone sample monitoring,it is suggested to use Agisoft Metashape Professional(64 bit)performed well in terms of time,accuracy and quality.