当使用相对高度属性训练输入模型时,需要参考表面参数。 栅格表面用作参考高度,从该高度开始为每个点插入相对高度。 这为模型提供了附加信息,这些信息有助于区分对象。 为此参数提供的栅格表面应表示与创建模型的训练数据中使用的栅格相同类型的数据。 在大多数情况下,这将是从地面分类点创建的栅格。 通过应用地面过滤器并使用 LAS 数据集转栅格 工具,可以从 LAS 数据集中的地面分类点生成栅格表面。 也可以使用 点云转栅格 工具从点云场景图层生成地面表面。 或者,可以使用非基于输入点云的栅格表面,但必须确保栅格中的 z 值与点云中的 z 值相应匹配。
Object Code—The codes that represent the objects the model was trained to identify.
Confidence—The confidence threshold for object recognition operates on a scale from 0.0 to 1.0. A higher value means that fewer objects will meet the criteria for being positively identified. Setting the threshold to 1.0 requires 100 percent certainty in the object's detection, effectively making it improbable for any object to be recognized. If you want to exclude a particular object from the output, set its confidence threshold to 1.0.
Overlap—The overlap threshold provides a way to select the object that will be retained when multiple overlapping objects have been identified. The overlap threshold describes the ratio between the intersection and the union of overlapping bounding boxes. When multiple objects overlap and exceed the overlap threshold, the object with the higher confidence will be retained.
Object Code—The codes that represent the objects the model was trained to identify.
Confidence—The confidence threshold for object recognition operates on a scale from 0.0 to 1.0. A higher value means that fewer objects will meet the criteria for being positively identified. Setting the threshold to 1.0 requires 100 percent certainty in the object's detection, effectively making it improbable for any object to be recognized. If you want to exclude a particular object from the output, set its confidence threshold to 1.0.
Overlap—The overlap threshold provides a way to select the object that will be retained when multiple overlapping objects have been identified. The overlap threshold describes the ratio between the intersection and the union of overlapping bounding boxes. When multiple objects overlap and exceed the overlap threshold, the object with the higher confidence will be retained.