hailo_tile_aggregator.rst

Hailo Tile Aggregator

Overview

HailoTileAggregator is a derived element of hailoAggregator and it is used in the Tiling app. A complement to the HailoTileCropper, the two elements work together to form a versatile tiling apps.

The element extends two methods of the parent element:

• handle_sub_frame_roi: Functionality to perform for each incoming sub frame. .. code-block:

  Performs ``remove_exceeded_bboxes`` (remove boxes close to boundary - using given border_threshold) and then parent element performs flatten detections.
  

• post_aggregation: Functionality to perform after all frames are aggregated succesfully. .. code-block:

  Performs ``remove_large_landscape`` and ``NMS``.
  

Example

Hierarchy

GObject
 +----GInitiallyUnowned
       +----GstObject
             +----GstElement
                   +----GstHailoAggregator
                         +----GstHailoTileAggregator

Pad Templates:
  SRC template: 'src'
    Availability: Always
    Capabilities:
      ANY

  SINK template: 'sink'
    Availability: Always
    Capabilities:
      ANY

Element has no clocking capabilities.
Element has no URI handling capabilities.

Pads:
  SINK: 'sink_0'
    Pad Template: 'sink'
  SINK: 'sink_1'
    Pad Template: 'sink'
  SRC: 'src'
    Pad Template: 'src'

Element Properties:
  name                : The name of the object
                        flags: readable, writable
                        String. Default: "hailotileaggregator0"
  parent              : The parent of the object
                        flags: readable, writable
                        Object of type "GstObject"
  flatten-detections  : perform a 'flattening' functionality on the detection metadata when receiving each frame
                        flags: readable, writable, changeable only in NULL or READY state
                        Boolean. Default: false
  iou-threshold       : threshold
                        flags: readable, writable, changeable only in NULL or READY state
                        Float. Range:               0 -               1 Default:             0.3
  border-threshold    : border threshold
                        flags: readable, writable, changeable only in NULL or READY state
                        Float. Range:               0 -               1 Default:             0.1
  remove-large-landscape: remove large landscape objects when running in multi-scale mode
                        flags: readable, writable, changeable only in NULL or READY state