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Questions about data normalization #6

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Soongja opened this issue Jan 10, 2023 · 1 comment

Soongja commented Jan 10, 2023 •

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For training, is wc(3D coordinate map) normalized in the same way as wc in DewarpNet?(reference)
After network inference, why is bm being multiplied by 0.99 as below?

DocGeoNet/inference.py

Line 29 in 5a56ab4

bm = (2 * (bm / 255.) - 1) * 0.99

Owner

fh2019ustc commented Jan 30, 2023

I am sorry for the late reply.

Yes

    msk = ((wc[:, :, 0] != 0) & (wc[:, :, 1] != 0) & (wc[:, :, 2] != 0)).astype(np.uint8)

    xmx, xmn, ymx, ymn, zmx, zmn = 1.2485291, -1.2410645, 1.2387834, -1.2280148, 0.63452387, -0.67187124
    wc[:, :, 0] = (wc[:, :, 0] - zmn) / (zmx - zmn)
    wc[:, :, 1] = (wc[:, :, 1] - ymn) / (ymx - ymn)
    wc[:, :, 2] = (wc[:, :, 2] - xmn) / (xmx - xmn)
    wc = cv2.bitwise_and(wc, wc, mask=msk)

Please refer to this issue in DocTr.

Hope this helps! Good luck~

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