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question about camera_transformation #2
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Hi @RichardoMrMu , I'm sorry that I completely missed this issue. I am not entirely sure which part you need help in, so I'd like to point you to: https://github.com/swook/EVE/blob/master/DATASET.md#hdf-file-format for now. I hope this helps. |
Thanks. What I mean is that how I can calculate the camera_transformation by myself. I am troubled with it. Does camera_transformation get by rotation and perspective transform matrix? I will appreciate it if you would tell me. |
Hi @RichardoMrMu , you need to do the camera-screen calibration to get the values in camera_transoformation. We wrote such information in the "A.3 Dataset Pre-processing" of the "Appendix" section in the paper. This calibration can be done with the "mirror-based camera pose estimation". You can find the code with the link. |
Thanks for the help. |
I have another questiuon. What is the diffirence between the camera_transformation with "mirror-based camera poseestimation" and the transformation getting from ETH-xgaze? In ETH-Xgaze, it seems like every image can get a matrix, and like in a video, every frame have a diffirent matrix. But in EVE, a piece of video have a same matrix. |
Hi, the transformation that you link to in ETH-XGaze is a transformation for warping the input image space to the final face patch space. Hence, this is different for every image sample. In EVE, the We also provide an equivalent matrix to the one you're referring to (from ETH-XGaze) as described in https://github.com/swook/EVE/blob/master/DATASET.md#hdf-file-format as:
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Hi, EVE is an excellent work, and I benefit a lot from it. But I have a question about HDF file data filed --camera_transformation. I will appreciate it very much if you could show me the way to get this field.
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