利用halcon进行9点标定
时间: 2023-07-04 15:20:06 浏览: 413
Halcon中的9点标定是一种常用的机器视觉标定方法,它可以用于相机的内部和外部参数标定。以下是一个简单的示例代码,演示如何使用Halcon进行9点标定:
```csharp
// 读取标定图片
HImage image = new HImage("calib_image.jpg");
HTuple width, height;
HOperatorSet.GetImageSize(image, out width, out height);
// 定义标定点坐标
HTuple row = new HTuple();
HTuple col = new HTuple();
row = row.TupleConcat(0.3 * height, 0.3 * height, 0.3 * height, 0.7 * height, 0.7 * height, 0.7 * height, 0.5 * height, 0.5 * height, 0.5 * height);
col = col.TupleConcat(0.3 * width, 0.5 * width, 0.7 * width, 0.3 * width, 0.5 * width, 0.7 * width, 0.3 * width, 0.5 * width, 0.7 * width);
// 进行标定
HTuple cameraParam = new HTuple();
HTuple worldPose = new HTuple();
HOperatorSet.VectorToPose9(row, col, 0, 0, out worldPose);
HOperatorSet.FindCalibObject(image, 9, 0, 0.03, "points", out cameraParam);
HOperatorSet.CalibrateCameras(image, cameraParam, worldPose, out cameraParam);
// 输出相机参数
HTuple fx, fy, cx, cy, kappa, s;
HOperatorSet.TupleSelect(cameraParam, 0, out fx);
HOperatorSet.TupleSelect(cameraParam, 1, out fy);
HOperatorSet.TupleSelect(cameraParam, 2, out cx);
HOperatorSet.TupleSelect(cameraParam, 3, out cy);
HOperatorSet.TupleSelect(cameraParam, 4, out kappa);
HOperatorSet.TupleSelect(cameraParam, 5, out s);
Console.WriteLine("fx={0}, fy={1}, cx={2}, cy={3}, kappa={4}, s={5}", fx, fy, cx, cy, kappa, s);
```
在这个示例中,首先读取标定图片,然后定义标定点的坐标。接着,使用Halcon的FindCalibObject函数找到标定点,并使用CalibrateCameras函数进行标定。最后,通过TupleSelect函数获取相机参数,并输出到控制台。
需要注意的是,在实际应用中,需要使用多组标定图片进行标定,并对标定结果进行评估和优化,才能获得更精确的相机参数。
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