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Verification of land cover maps from landsat data. [for alaska, arizona and oklahoma
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Szajgin, J. Linden, D. S. |
| Copyright Year | 1981 |
| Description | The application of cluster sampling to verifying the accuracy of maps derived from digital data is discussed. Variants of the cluster sampling technique were used in large scale assessments for areas in excess of one million hectares. Three types of classification errors are possible: commission errors, omission errors, and overall error classification. Commission errors for a particular cover type occur when pixels are classified as that cover type but are found to be some other cover type when the field is checked. Omission errors occur when pixels of fields already visited and known to be of a particular cover type, are classified as some other cover type. Overall error is the proportion of pixels incorrectly classified, without regard to omission or commission. Since the classified image represents the sampling frame, sampling for accuracy assessment was designed to estimate commission error. However, the sample can also provide useful estimates of omission and overall error. Assessment for Alaska, Arizona, and Oklahoma are presented. |
| File Size | 326225 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19820014694 |
| Archival Resource Key | ark:/13960/t0sr3pw0k |
| Language | English |
| Publisher Date | 1981-09-01 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Classifications Earth Resources Program Canopies Vegetation Taxonomy Variability Oklahoma Multispectral Photography Pattern Recognition Regression Analysis Ground Truth Digital Data Aerial Reconnaissance Accuracy Thematic Mapping Photointerpretation Photomaps Alaska Clumps Data Sampling Arizona Spectral Reconnaissance Photogrammetry Technology Utilization Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
