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Thread: 2 different angled towers.

  1. #1
    Member davekmrhys's Avatar
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    Default 2 different angled towers.

    i found these 2 camera angles that make the towers look like they are falling but does mean the 'joint' is good as i cant see it!
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  2. #2
    Member davekmrhys's Avatar
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    found what i think is the joint with faded cars
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  3. #3
    WMU Aviator BradG7's Avatar
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    Default

    I love the falling towers, hehe, pretty funny, good find
    Remember what movie these are from? I bet you don't!
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  4. #4
    Member davekmrhys's Avatar
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    Default

    Unless these are towers like piza they are the same
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  5. #5
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    Default Radial Displacement in Vegas

    The towers are angled differently indeed; that is because they were captured on two different images (as you suspected). Adjacent images often have sufficient overlap to allow the operator who is mosaicking the images to adjust the edge of so as not to clip a tall object. If you look at the area around the northeast tower, you can see where the asphalt is a lighter tone than the rest of the western image.

    When tall objects are not directly below the downward pointing camera (at the nadir), they are displaced radially away from the principal point of the image (where the optical axis ray would intersect the surface). The further from the Principal Point, the more radial displacement. The taller the building the more radial displacement; the lower the altitude of the camera, the more radial displacement, and the shorter the focal length of the lens, the more radial displacement.

    If you want to determine the principle point of any near-vertical image, just extend the trace of the buildings' corners (which are almost exactly parallel) and they will converge at the Principle Point/Nadir. This is also known as the vertical vanishing point in three-point perspective drawing.

    Ironically, in non-optical reflective imagery (eg, RADAR, SONAR, etc,) tall objects will lean toward the principle point since its return hits the sensor sooner than the base.

    Cheers,
    XS

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    Member davekmrhys's Avatar
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    Thanks for the xplanation but it is what i ment, but it certainly better than my '2 different angle' xplanation and should clear it up for others. What i find clever is the fact that the images are joined 'seamlessly' in the image of se london they have faded it so you cannot tell. There must be hundreds of examples of this all over GE.

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    Talking it happens at the empire state too!

    Check out this view of the Empire state building, the falling tower happens here too, you would think they would have a better image for such a famous location.

    Makes me think that its what MC Esher would do to NYC given a chance.
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  8. #8
    Member davekmrhys's Avatar
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    Thumbs up

    Xcellent example keep looking.

  9. #9
    Member davekmrhys's Avatar
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    found more near my original find
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  10. #10
    Member davekmrhys's Avatar
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    updated will now use this thread
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  11. #11
    Member davekmrhys's Avatar
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    vagas has plural
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    Cool

    The same here in Miami
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  13. #13
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    Default

    keep looking
    have you found any hairs???????
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  14. #14
    Senior Member Zothip's Avatar
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    I thought I was tripping on "Death sticks" when I saw these.


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  15. #15
    Senior Member Zothip's Avatar
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    I hate responding to my own posts, but to add more.

    I think this is 4 buildings that are seamed in 1/4's If you look, the towers are all 4 angled diferently.
    Latine loqui coactus sum! Latro! fremo!
    Sed quis custodiet ipsos custodes? Si sapis, sis Senatus!

    Si hoc legere scis nimium eruditionis habes

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