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Get Binocular Stereo Calibration Information (G Dataflow)

Last Modified: June 25, 2019

Returns binocular stereo calibration information associated with an image.

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binocular stereo session in

Reference to the binocular stereo vision session on which this node operates.

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error in

Error conditions that occur before this node runs.

The node responds to this input according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Default: No error

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left rectified ROI

Rectangular region in the left rectified image that overlaps with the right image.

Disparity information is available only in the overlapped region.

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global rectangle

Coordinates of the bounding rectangle.

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contours

Individual shapes that define an ROI.

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ID

Control specifying whether the contour is the external or internal edge of an ROI.

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type

Shape type of the contour.

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coordinates

Relative position of the contour.

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right rectified ROI

Rectangular region in the right rectified image that overlaps with the left image.

Disparity information is available only in the overlapped region.

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global rectangle

Coordinates of the bounding rectangle.

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contours

Individual shapes that define an ROI.

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ID

Control specifying whether the contour is the external or internal edge of an ROI.

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type

Shape type of the contour.

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coordinates

Relative position of the contour.

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binocular stereo session out

Reference to the stereo vision session on which this node operates.

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rotation matrix

Rotation transformation between the left and right cameras.

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translation vector

Translation between the left and right cameras.

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essential matrix

Output that transforms a point in the left camera coordinate system to the right camera coordinate system

This output contains all the information about the geometry of the two cameras.

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error out

Error information.

The node produces this output according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.
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fundamental matrix

Output that transforms a pixel coordinate in the left image to the right image.

This matrix contains the same information as the essential matrix and intrinsic information of both cameras.

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Q matrix

Output that converts pixel coordinates along with the disparity value into real-world 3-D points.

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported

Web Server: Not supported in VIs that run in a web application


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