simaaiboxcreator

This section describes a GStreamer plugin named simaaiboxcreator.

Brief Description

This plugin is an aggregator plugin designed to process a bounding box. The plugin takes the softmax and sigmoid outputs and transforms the coordinates to create a set of BBOX structures. These structures, representing bounding boxes with associated class IDs, scores, and coordinates, are then available for further processing.

Config JSON Parameters

width: frame width height: frame height num_boxes: total data len (100) num_classes: total number of classes (92) car_only: Enable to detect cars only

{
 "version": 0.1,
 "node_name": "bbox",
 "memory": {
   "cpu": 0,
   "next_cpu": 0
 },
 "system": {
   "out_buf_queue": 1,
   "debug": 0,
   "dump_data": 1
 },
 "params": {
   "width": 1280,
   "height": 720,
   "num_boxes": 100,
   "num_classes": 92,
   "car_only": 1
 },
 "buffers": {
   "input": [
     {
       "name": "sigmoid",
       "size": 1600,
       "order": 0,
       "offset": 0,
       "copy_bytes": 1600
     },
     {
       "name": "softmax2d",
       "size": 36800,
       "order": 1,
       "offset": 0,
       "copy_bytes": 36800
     }
   ],
   "output": {
     "size": 2400
   }
 }
}

Example Usage

typedef struct { unsigned int x1; // top-left unsigned int y1; unsigned int w; // width and height unsigned int h; float score; unsigned int class_id; // channel in heatmap } BBOX;

gst-inspect-1.0 Output

Plugin Details:
Name                     simaaiboxcreator
Description
Filename
Version
License                  LGPL
Source module            gst-plugins-sima
Binary package
Origin URL               https://bitbucket.org/sima-ai/gst-plugins-sima

simaaiboxcreator: SiMa.ai simaaiboxcreator element

1 features:
+-- 1 elements

Note

Please refer to simaaiboxcreator’s README file for more information.