Where are the "*.txt" in pose dir come from ?

[feiqiu-cyber]

I train HelixSurf in a real world dataset which i. get by iphone, then as the step in the first_mvs.sh, but in the 4th step, "mvs_fusion_segmentation" , which need to read ".txt" from "pose" dir, but i dont have a pose dir in fact, so I find the "_cam.txt" in mvs_result/scene/cams, these extrin and intrin are get from colmap. But I find something i dont understand in dataset you provided, for example, as the pic show, i compare the 0000.txt and 0000_cam.txt, i find the params in extrin is diffrent, the first three rows and first three columns in 0000.txt is the transpose matrix of the first three rows and first three columns in 0000_cam.txt, but difference is the 4th column So, I want to ask how to get the pose dir of a scene data, thank you very much