Distance du tag aruco

This commit is contained in:
Ackimixs_
2023-12-04 17:43:36 +01:00
parent b9d2470068
commit 18545940f6

View File

@@ -1,10 +1,23 @@
import cv2 as cv
import cv2.aruco as aruco
import numpy as np
# Taille du tag aruco
ARUCO_WIDTH = 2.5
# Focal de la cam
# Calculer la focal avec le fichier get_the_focal.py
FOCAL_LENGTH = 600
arucoTagMapping = {
47: ["Solar Panel", 2.2],
36: ["White flower", 2.5],
13: ["Purple Flower", 1.8]
}
# Charger une image depuis la caméra (0 pour la caméra par défaut, généralement la webcam)
cap = cv.VideoCapture(0)
# Définir le dictionnaire ArUco
aruco_dict = aruco.getPredefinedDictionary(aruco.DICT_4X4_50)
@@ -12,7 +25,7 @@ aruco_dict = aruco.getPredefinedDictionary(aruco.DICT_4X4_50)
parameters = aruco.DetectorParameters()
#
detector = aruco.ArucoDetector(aruco_dict,parameters)
detector = aruco.ArucoDetector(aruco_dict, parameters)
while True:
# Lire une image depuis la caméra
@@ -28,6 +41,32 @@ while True:
if ids is not None:
aruco.drawDetectedMarkers(frame, corners, ids)
for i in range(len(ids)):
if len(corners) > 0:
ids = ids.flatten()
for (markerCorner, markerID) in zip(corners, ids):
if markerID not in arucoTagMapping:
continue
corners = markerCorner.reshape((4, 2))
(topLeft, topRight, bottomRight, bottomLeft) = corners
topRight = (int(topRight[0]), int(topRight[1]))
bottomRight = (int(bottomRight[0]), int(bottomRight[1]))
bottomLeft = (int(bottomLeft[0]), int(bottomLeft[1]))
topLeft = (int(topLeft[0]), int(topLeft[1]))
# Calculate the apparent width in pixels
P = np.sqrt((topRight[0] - topLeft[0]) ** 2 + (topRight[1] - topLeft[1]) ** 2)
# Calculate the distance to the Aruco tag
D = (arucoTagMapping[markerID][1] * FOCAL_LENGTH) / P
print(f"Distance to : {arucoTagMapping[markerID][0]} : {D} cm")
# Afficher l'image
cv.imshow('Frame', frame)
@@ -37,4 +76,4 @@ while True:
# Libérer la capture et fermer la fenêtre
cap.release()
cv.destroyAllWindows()
cv.destroyAllWindows()