cv2.stereoCalibrate例子
时间: 2023-07-24 07:13:03 浏览: 190
以下是使用OpenCV的cv2.stereoCalibrate函数进行立体相机标定的示例代码:
```python
import cv2
import numpy as np
# 读取左右相机的图像
img_left = cv2.imread('left.png', cv2.IMREAD_GRAYSCALE)
img_right = cv2.imread('right.png', cv2.IMREAD_GRAYSCALE)
# 定义棋盘格内部角点的数量
num_corners_width = 9
num_corners_height = 6
# 计算棋盘格角点的3D坐标
objp = np.zeros((num_corners_width*num_corners_height, 3), np.float32)
objp[:,:2] = np.mgrid[0:num_corners_width, 0:num_corners_height].T.reshape(-1, 2)
# 找到左右相机中的棋盘格角点
ret1, corners1 = cv2.findChessboardCorners(img_left, (num_corners_width, num_corners_height), None)
ret2, corners2 = cv2.findChessboardCorners(img_right, (num_corners_width, num_corners_height), None)
# 计算相机标定的参数
ret, mtx_left, dist_left, mtx_right, dist_right, R, T, E, F = cv2.stereoCalibrate(
[objp], [corners1], [corners2],
cameraMatrix1=None, distCoeffs1=None, cameraMatrix2=None, distCoeffs2=None,
imageSize=img_left.shape[::-1], flags=cv2.CALIB_FIX_INTRINSIC)
print("左相机内部参数矩阵:")
print(mtx_left)
print("右相机内部参数矩阵:")
print(mtx_right)
print("左相机畸变系数:")
print(dist_left)
print("右相机畸变系数:")
print(dist_right)
print("左相机到右相机的旋转矩阵:")
print(R)
print("左相机到右相机的平移向量:")
print(T)
```
在这个示例中,我们首先读取左右相机的图像。然后我们定义了棋盘格内部角点的数量,并利用这些信息计算了棋盘格角点的3D坐标。接下来,我们使用cv2.findChessboardCorners函数在左右图像中找到棋盘格角点的坐标。最后,我们调用cv2.stereoCalibrate函数来计算相机的内部参数矩阵、畸变系数、旋转矩阵和平移向量。
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