blob_params_collector

Utility for extracting blob detector parameters.

To launch using a webcam, use the attached launch file. Usb_cam package required.

roslaunch extended_object_detection blob_params_collector.launch

When you press ESC, the utility will write an XML description of the configured object to the console and close, including the nodeusb-cam.usb-cam.

1. Subscribed topics

• image_raw (sensor_msgs/Image) image topic

2. Interface

The interface provides a number of sliders for setting the parameters of spot detectors and one slider for the size of the object (size attribute on the image is used), as well as an image with the recognition result with the current parameters.

3. Guide

3.1. Quick guide

1. Place the object of interest in the field of view of the camera.
2. Move the spot detector sliders to get the best detection results.
3. Move the size slider to filter out fractal objects.
4. Press ESC and copy the object parameters from the console.