where is the physical location of the origin of Ladybug camera coordinate system?

erkil1452 / gaze360

Code for the Gaze360: Physically Unconstrained Gaze Estimation in the Wild Dataset

http://gaze360.csail.mit.edu

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where is the physical location of the origin of Ladybug camera coordinate system? #21

Closed taoye0606 closed 2 years ago

taoye0606 commented 3 years ago

as mentioned in the ICCV2019 paper 'The Ladybug5 consists of five synchronized and overlapping 5 megapixel camera' and the metadata also provides the 'index of the camera'. it seems that the subject and the target are captured by different cameras. Generally each camera has its own coordinate, so which camera dose 'the Ladybug camera coordinate system' based on?

erkil1452 commented 2 years ago

It is based on a point somewhere in the middle of all the cameras. The Ladybug sdk handles the conversions between this coordinate system and the local camera coordinate systems (there is one for each camera) so all the provided 3D locations are valid with respect to this central neutral origin.