4.6 Body Detection

4.6.1 Algorithm

It determines whether there is a person in the image according to the outlines of the head and shoulders. If yes, it returns its coordinates and size.

4.6.2 Returned Values

When the controller acquires the recognition result, the algorithm will return the followings:

Parameter

Definition

kXValue

Central coordinate x

kYValue

Central coordinate y

kWidthValue

Width w

kHeightValue

Height h

4.6.3Tips of Body Algorithm

  1. Compared with a human facing from the side and back, the detection results will be more accurate when the person faces Sengo1 head-on.

  2. The detection results will be more accurate when the color of the background is simple and obviously difference from that of the body dress.

4.6.4 Test Code

  1. In the code start-up, set the serial port baud rate to 9600, and then set the communication mode of the AI vision module to I2C, and finally set it to run in Body.

a60

  1. The if block determines the number of detections. Only when the number of detections is greater than 0 will the data be output. Note to choose Body.

Complete code:

4.6.5 Test Result

After uploading the code, the AI vision module will scan the area captured by the camera. If there is a human body, it will be recognized and its coordinates, width and height will be printed on the monitor.

1