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Get Depth Image from Stereo (G Dataflow)

Last Modified: June 25, 2019

Returns the depth image associated with latest disparity image that was computed.

Run this node after running the Stereo Correspondence (Block Matching) node or the Stereo Correspondence (SG Block Matching) node.

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depth control

Range of depth values that are valid for the system.

If the value is out of range, NaN is returned.

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invalid disparity replace value

Pixel value assigned to invalid disparity values in the input disparity image. Use the same value that was used either in the Stereo Correspondence (Block Matching) node or Stereo Correspondence (SG Block Matching) node.

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binocular stereo session in

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

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disparity image

Reference to the image that contains the disparity values.

This image is the output of the Stereo Correspondence (Block Matching) node or the Stereo Correspondence (SG Block Matching) node.

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depth image in

Reference to the image that contains the depth values after the node executes.

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error map in

Reference to the image that contains the error estimates of each depth value output in the depth image out image.

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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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binocular stereo session out

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

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disparity image dup

Reference to the input disparity image.

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depth image out

Reference to the image that contains the depth values corresponding to the disparity values in the input disparity image.

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error map out

Reference to the image that contains the error estimates of each depth value output in the depth image out image.

The error value at each pixel gives the maximum error in the computed depth value and is specified in the units used during calibration.

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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.

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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