ZhangAoCanada / RADDet

Range-Azimuth-Doppler Based Radar Object Detection
MIT License
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The use of registration matrix #54

Open LRNO1 opened 2 months ago

LRNO1 commented 2 months ago

While studying your work, I encountered some challenges and would like to seek your guidance. In your paper, you mentioned the registration matrix used for transforming coordinates from the 3D camera frame to the radar frame. I am having difficulty understanding the exact usage of this matrix, particularly in calculating the Range (R) and Angle (A) from 3D points (x, y, z).

Specifically, I would like to ask for clarification on the following points:

Purpose of the registration matrix: Could you please explain how this matrix should be used to transform 3D points (x, y, z) from the camera frame to the radar frame? Matrix dimensions: The matrix is 4x2. Does this mean that I need to append a homogeneous coordinate to the 3D point, and then map it to (R, A)? If so, does each column of the matrix correspond to Range and Angle? I would really appreciate it if you could provide some guidance on these questions.