DriveWorks SDK Reference
4.0.0 Release
For Test and Development only

Image Pyramid PVA Sample


The Image Pyramid PVA sample demonstrates the image pyramid creation pipeline on hardware units:

  • PVA (Programmable Vision Accelerator).

The Image Pyramid PVA sample accepts RAW videos, h264 videos, or live camera input data from an AR0231 (revision >= 4) sensor. It then applies gaussain based scaling algorithm to create images for specified number of levels.

Running the Sample

The Image Pyramid pva sample, sample_image_pyramid_pva, accepts the following optional parameters. If none are specified, it performs detections on a supplied pre-recorded video.

./sample_image_pyramid_pva --input-type=[video|camera]


        Defines if the input is from live camera or from a recorded video.
        Live camera is supported only on NVIDIA DRIVE(tm) platforms.
        It is not supported on Linux (x86 architecture) host systems.
        Default value: video

        Specifies the absolute or relative path of a raw or h264 recording.
        Only applicable if --input-type=video
        Default value: path/to/data/samples/stereo/left_1.h264

        Specifies a supported AR0231 `RCCB` sensor.
        Only applicable if --input-type=camera.
        Default value: ar0231-rccb-bae-sf3324

        Is the group where the camera is connected to.
        Only applicable if --input-type=camera.
        Default value: a

        Indicates the camera index on the given port.
        Default value: 0

        Indicates the number of levels in a pyramid.
        Default value: 1

        Indicates on which PVA engine the corresponding stage of the pipeline is to be executed.
        Default value: 0


To run the sample on a video

./sample_image_pyramid_pva --input-type=video --video=<video file>

To run the sample on a camera on NVIDIA DRIVE platforms

./sample_image_pyramid_pva --input-type=camera --camera-type=<camera type> --camera-group=<camera group> --camera-index=<camera idx on camera group>

To run the sample on non-default engines

./sample_image_pyramid_pva --pyrLevel=3 --pvaNo=1

Additional information

For more information, see Filtering.