Confidence Threshold#
该功能的使用#
运作原理#
The camera calculates an internal confidence value between 0 and 65335 for every pixel. The more light is collected for a pixel, the higher the confidence value. With the ConfidenceThreshold parameter you can specify that only pixels above a certain confidence value are included in the camera output. If the internal confidence value of a pixel doesn't pass the confidence threshold, the corresponding pixel position is represented in the various components like outlined in the following table:
| 组件 | 低于 Confidence Threshold 的像素表示法 |
|---|---|
| 范围 | For point clouds, i.e., the PixelFormat is set to Coord3D_ABC32f, all 3 coordinates of a pixel are set to the value specified by the Scan3dInvalidDataValue parameter.For depth maps, i.e., the PixelFormat is set to Coord3D_C16 或 Mono16, the depth value for a pixel is set to the value specified by the Scan3dInvalidDataValue parameter. |
| 强度 | 置信度阈值对强度分量没有影响。无论置信度值如何，每个像素始终会有强度值。 |
| 置信度 | 设置为零。 |
设置 Confidence Threshold#
您可以指定一个 0 到 65335 之间的置信度阈值。由于操作条件在不同的应用中可能会发生很大变化，因此没有选择该值的通用准则。尝试使用此参数进行试验，以查看哪个设置可提供最佳效果，即，在哪个设置中删除了图像中不需要的部分。