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你好,感谢您开源的项目,我有几个问题不理解,想请教下: (1)您开源的DARTset数据集的3D坐标是什么坐标系下的? (2)在DARTset.py文件第95行中,为什么要对y、z坐标取反? (3)在DARTset.py文件第97、98行中,为什么要做平移,是为了更好地可视化吗? (4)我自己用Unity GUI工具做出来的图像与标签,用postprocess目录下的convert.py处理后,再用DARTset.py进行可视化,为什么3D坐标投影后与2D坐标对不上?
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hello, (1) 3D坐标就是MANO原始的坐标系, 我很久没检查了. (2) 取反是为了把Unity里面的坐标系搞成我们的坐标系. (3) 是的, 这是为了渲染object-centric的结果 (4) 具体对不上的话可以放出来debug下?
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好的,感谢回复,关于(4),我做了以下流程: 1.用官网下载的DART GUI输出一张图像及对应的标签文件: GUI下载方式: 得到的图像与标签: 图像与标签文件可从以下链接下载:GoogleDrive或者百度网盘 (提取码:l4hw) 2.用https://github.com/DART2022/DART/blob/master/postprocess/convert.py将输出的标签转化为output.obj: output.obj也可从1中链接下载 3.用https://github.com/DART2022/DART/blob/master/DARTset.py进行可视化: (1)首先,读取output.obj的2d坐标joints_2d与3d坐标joints_3d: (2)然后,利用joints_2d与joints_3d计算投影矩阵ortho_intr: (3)再利用joints_3d与ortho_intr进行投影,得到投影后的2d坐标proj_2d: (4)最后将joints_2d与proj_2d画在同一张图像上: 得到以下结果: 该图像中,joints_2d的坐标是准确的,但proj_2d不准确,joints_2d与proj_2d对不上,请问这是什么原因?
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你好,感谢您开源的项目,我有几个问题不理解,想请教下:
(1)您开源的DARTset数据集的3D坐标是什么坐标系下的?
(2)在DARTset.py文件第95行中,为什么要对y、z坐标取反?
(3)在DARTset.py文件第97、98行中,为什么要做平移,是为了更好地可视化吗?
(4)我自己用Unity GUI工具做出来的图像与标签,用postprocess目录下的convert.py处理后,再用DARTset.py进行可视化,为什么3D坐标投影后与2D坐标对不上?
The text was updated successfully, but these errors were encountered: