Problem merging photogrammetry components and laser

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    Wallace Wainhouse CR

    Hi,

    How spread out were the control points? we're they confirmed on laser scans and both image sets? if so how many pics for each image set? and with how many px error? Did you follow the procedure as described in this video? https://youtu.be/rrXuHcqoOjQ

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    ImanolMP

    Hi,

    thanks for the fast reply.

    How spread out were the control points?

    I've set 3 control points on the middle of each of the main facades of the church (at different heights), so I guess they cover most of the whole volume.

    we're they confirmed on laser scans and both image sets?

    I'm not sure of understanding your question. I have marked the same control points on laser scans intensity images and outside images. Non in inside images because they are not visible from inside, and I don't see the need as the inside component is well registered.

    if so how many pics for each image set?

    Laser => Control Point 1 : 2 images | Control Point 2 : 2 images | Control Point 3 : 1 image

    Outside photographies => Control Point 1 : 17 images | Control Point 2 : 19 images | Control Point 3 : 4 image

    Inside Phtographies => each control point in 0 images

    and with how many px error?

    Laser => CP1: 0.5 and 0.6 px | CP2: 0.7 and 0.9 px | CP3: -- px

    Outside Photographies: CP1: [0.0,0.6]px | CP2: [0.0,1.7]px | CP3: [0.0,0.1]px

    Did you follow the procedure as described in this video? https://youtu.be/rrXuHcqoOjQ

    I didn't know this video I'm taking a look on it right now.

    Thanks!

    Imanol

     

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    ImanolMP

    Hi,

    I have just watched the video. I did something similar to this video. Maybe the problem is that CP3 is only in one image on laser?

    I will try this evening to improve the control points...

    Imanol

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