Nvdewarper plugin [surface0] property

Accelerated Computing Intelligent Video Analytics DeepStream SDK
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  1. top-angle
  2. bottom-angle
  3. pitch
  4. yaw
  5. roll
    those 5 Gst-nvdewarper configuration [surface] parameters, What do these parameters mean ? How to define these ?
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Please refer to Perspective distortion dewrapping - Intelligent Video Analytics / DeepStream SDK - NVIDIA Developer Forums

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I just want to know what these 5 parameters means? and how to define these ? I have already check Perspective distortion dewrapping - Intelligent Video Analytics / DeepStream SDK - NVIDIA Developer Forums

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These are all camera position and view related.
top angle and bottom angle are the viewing angles.

The other three parameters, please refer to
Yaw, Pitch, Roll and Omega, Phi, Kappa angles (pix4d.com)

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  1. OK, top angle and bottom angle are the viewing angles. and these 2 angles range -180.0 to 180.0,
  2. please draw me the [surface0] params upon picture. and THE RANGE -180.0 to 180.0 .
    [surface0]

1=PushBroom, 2=VertRadCyl

projection-type=1
surface-index=0
#dewarped surface parameters
width=3886
height=666
top-angle=0
bottom-angle=-35
pitch=90
yaw=0
roll=0
focal-length=437

IMG_20240201_092602
IMG_20240201_092602960×1280 175 KB

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What do you require?

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draw these 5 params on the up picture.

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I have no idea about your camera. We have explained all the parameters.

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Schematic plot

IMG_20240201_092602
IMG_20240201_092602960×1280 175 KB

can you tell me the location “bottom-angle=-35”,? plot a line or curve on the picture. ?

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In reality, I want to see the "contour line " or the “isohypse line”. the top angle and bottom angle viewing angles. and these 2 angles range -180.0 to 180.0

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Do you know camera’s FOV? The field of view (FOV) of camera calculation Example (linkedin.com)

It should be 3D(cone-shaped), just show you in 2D

camera
camera886×550 9.43 KB

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We have no idea about your camera’s parameters, please consult your camera vendors.

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OK , got it!

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Dewarper plugin cv::Mat - Intelligent Video Analytics / DeepStream SDK - NVIDIA Developer Forums
please response me this topic.

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How to calculate the “Focal length of camera lens, in pixels per radian” ?

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Finding focal length from image size and FOV - Photography Stack Exchange
calculations - How do I find a camera’s focal length in pixels? - Photography Stack Exchange

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