YuanSun-XJTU / iComMa

iComMa: Inverting 3D Gaussian Splatting for Camera Pose Estimation via Comparing and Matching
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Questions about se3_to_SE3 #6

Open YosinLiu opened 5 months ago

YosinLiu commented 5 months ago

In the function that calculates the transformation from Lie algebra to Lie group, there is a formula for calculating the transformation of the translation vector: V = I + B wx + C (wx @ wx)

However, should the transformation formula be modified as follows, with a coefficient multiplied before the identity matrix? image

The code does not use this coefficient and still produces reliable results. Could you please clarify if this has any impact?

计算李代数到李群的函数中有一段计算平移向量转换的公式 V = I+Bwx+Cwx@wx 但是转换公式是否应该如下所示,在单位矩阵之前应该乘一个系数呢? 代码中没有使用这个系数也得到了可靠的结果,请问是否有影响呢?