今天突然发现在另外一个帖子里有人对CSF有所反馈,虽然不完美,但已经是很大的肯定了。 over 80 million points(能处理超过8千万个点的数据),very irregular surfaces(非常复杂的地形),performed very well(以前参加ISPRS建筑物三维重建测评时也得到过同样的评价)。 另外,CSF mex在mathworks网站上的30天下载量超过50次,也截屏留念一下。 Re: qCANUPO (classifier files, etc.) Report this post Quote Post by uasghar Wed Dec 14, 2016 3:13 pm wpqjbzwm wrote:Hi, @uasghar. For bare-earth extraction, there is another option. You may try new CSF plugin. (see http://www.danielgm.net/cc/forum/viewtopic.php?f=21t=1724 ) Hope to see your comparison of qCANUPO and CSF. I guess qCANUPO should be better, because it uses more information to classify ground and non-ground points. But CSF will be easier to use. I tested your plugin today on Photogrammetrically point cloud consisting of over 80 million points, and I must thank you that it worked better than my expectations, for very irregular surfaces (e.g. erosion gullies with very sharp spikes) it CSF performed very well. However, the settings I used were 0.2, 800, and 0.5 (with both steep slope options checked). I actually moved step by step from cloth resolution of 1 to 0.1 while keeping all other values constant, and until 0.2 my bare-earth model constantly improved. However, when I changed from 0.2 to 0.1, my bare-earth model had less points (especially in areas with erosion gullies), what I got for 0.2. Do you know if there's any specific reason behind that? and thanks again for your plugin. Regards, Umair.