Description

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]
                          --video=[path/to/video]
                          --camera-type=[camera]
                          --camera-group=[a|b|c|d]
                          --camera-index=[0|1|2|3]
                          --pyrLevel=[1-3]
                          --pvaNo=[0|1]

Where:

--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

--video=[path/to/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

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

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

--camera-index=[0|1|2|3]
        Indicates the camera index on the given port.
        Default value: 0

--pyrLevel=[1-3]
        Indicates the number of levels in a pyramid.
        Default value: 1

--pvaNo=[0|1]
        Indicates on which PVA engine the corresponding stage of the pipeline is to be executed.
        Default value: 0

Examples

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.

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