If the pretrained CLRNet has the process ROIgather

Hello everyone,

I'm using https://de.mathworks.com/help/driving/ug/extract-lane-information-from-recorded-camera-data-for-scene-generation.html this example to extract the lane information. Could anyone please tell me if the ROI Gather be used in pretrained CLRNet-Modell?

Best regards,

Xinyu

Answer 1

[praguna manvi]

Hi @Xinyu,

The "laneBoundaryDetector" that loads the pretrained "CLRNet" by default already applies ROI using the "detect" function as follows, which is also seen in the example you referenced above:

detector = laneBoundaryDetector;
lanes = detect(detector,I,ROI=120,ExecutionEnvironment="cpu");

The "ROI" parameter either crops the top 120 rows of the image in this snippet, or the function crops the image using the position and size of the crop rectangle specified as "[x y width height]". For more information, refer to this documentation for the "detect" function:

https://www.mathworks.com/help/driving/ref/laneboundarydetector.detect.html

Hope this helps!