Meaning of "ida, bda" in the dataset script

[NJUEELJN]

Hi, thanks for opening access the nice work! I have a question about the meaning of "ida" that shows up a lot in the dataset script e.g. ida_transformation , and does it mean transformation among different view cameras?

[yinchimaoliang]

Hi! ida denotes image data augmentation and bda denotes bev data augmentation.

[NJUEELJN]

Hi! ida denotes image data augmentation and bda denotes bev data augmentation. Thanks really! And to be specifically, does ida_matrics refers to camera extrinsic parameter of the camera to vehicle?

[raozhongyu]

Hi, I'd like to konw if I use my own data. How to caluate the BDA and IDA? If there is no augmentation of bev label, what's the IDA data?

[ww249]

ida and bda are from BEVDet, I want to communicate more with you.