Comments on: Nearest Neighbor Classification in eCognition https://gisgeography.com/nearest-neighbor-classification-guide-ecognition/ Geographic Information Systems Fri, 28 Mar 2025 00:35:25 +0000 hourly 1 https://wordpress.org/?v=6.8.3 By: Nguyen Van Nam https://gisgeography.com/nearest-neighbor-classification-guide-ecognition/#comment-251759 Fri, 19 Nov 2021 19:30:49 +0000 http://gisgeography.com/?p=1215#comment-251759 Find and read “Research on effective method of object-oriented classification for land cover using multi-spectral satellite imagery”

]]> By: GISGeography https://gisgeography.com/nearest-neighbor-classification-guide-ecognition/#comment-52286 Sat, 23 Nov 2019 11:21:44 +0000 http://gisgeography.com/?p=1215#comment-52286 In reply to Salma Benmokhtar.

It depends on what you’re trying to do. But often, mean and standard deviation come into play for classification. Difference to neighbors can also be helpful for urban features.

]]> By: Salma Benmokhtar https://gisgeography.com/nearest-neighbor-classification-guide-ecognition/#comment-52227 Fri, 22 Nov 2019 08:58:22 +0000 http://gisgeography.com/?p=1215#comment-52227 What are the statistics to use if we are working with an ortho-photography??

]]> By: GISGeography https://gisgeography.com/nearest-neighbor-classification-guide-ecognition/#comment-31651 Fri, 03 May 2019 09:00:35 +0000 http://gisgeography.com/?p=1215#comment-31651 In reply to Judit Rubio Delgado.

I don’t think so. But why not add the other images to your current project?

]]> By: Judit Rubio Delgado https://gisgeography.com/nearest-neighbor-classification-guide-ecognition/#comment-31648 Fri, 03 May 2019 08:29:38 +0000 http://gisgeography.com/?p=1215#comment-31648 It is possible to train a NN classification using images from different projects?

]]> By: thymiodimo https://gisgeography.com/nearest-neighbor-classification-guide-ecognition/#comment-30342 Wed, 03 Apr 2019 15:34:37 +0000 http://gisgeography.com/?p=1215#comment-30342 What is really powerfull with OBIA is that it can be used to perform supervised classification for B&W aerial imagery. Using segmentation as well as enhanced features such as haralick textures one can achieve very good accuracy (depending on spatial resolution).

]]> By: Jaime Candelas Bielza https://gisgeography.com/nearest-neighbor-classification-guide-ecognition/#comment-25420 Fri, 30 Nov 2018 19:31:19 +0000 http://gisgeography.com/?p=1215#comment-25420 I am not sure which sofware you used but i am guessing it was ECOGNITION. I am not trained in this software but more in ARCGIS and QGIS. I have ARCGIS 10.2.2 and this version does not have Segmentation and classification tool installed but QGIS has ORFEO toolset. I can not find online anything that well explain the parameters of ORFEO´s tool Segmentation (meanshift). Any help here? thanks in advance

]]> By: cory https://gisgeography.com/nearest-neighbor-classification-guide-ecognition/#comment-25278 Tue, 27 Nov 2018 21:29:04 +0000 http://gisgeography.com/?p=1215#comment-25278 Is there a way to upload an ArcGIS shapefile with predefined classes to use as a training set?

]]> By: GISGeography https://gisgeography.com/nearest-neighbor-classification-guide-ecognition/#comment-14961 Thu, 24 May 2018 02:14:42 +0000 http://gisgeography.com/?p=1215#comment-14961 In reply to Haslina.

You need someone to go in the field to verify your classes are correct. In addition, you can generate a user/producer accuracy and confusion matrix

]]> By: Haslina https://gisgeography.com/nearest-neighbor-classification-guide-ecognition/#comment-14960 Thu, 24 May 2018 02:11:19 +0000 http://gisgeography.com/?p=1215#comment-14960 How can we evaluate the accuracy assessment of the land cover classification using eCognition. Details steps and procedure are much appreciated.

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