Map registration can be divided into video registration and spatial registration. The image registration object is a raster graph, such as a TIFF chart. The image after registration can be saved as an ESRI GRID, TIFF, or erdas imagine format. Spatial registration (spatial adjustment) is a vector data registration.
First, image registration
Registration in ArcGIS:
1. Open ArcMap and add the Georeferencing toolbar.
2. Add the images that need to be corrected to ArcMap and find the tools in the Georeferencing toolbar active. Select the coordinate system in the coordinate properties of the View/data frame properties. In the case of the geodetic (projection) coordinate system Select projected coordinate system in predefined, the coordinate units are generally meters. If the geographic coordinate system (coordinates are represented by latitude and longitude), select geographic coordinate system.
3. You can remove the tick before "auto adjust" before correcting. In the middle of the school we need to know the coordinates of some special points. such as the intersection of the kilometer grid, we evenly take a few points, not less than 7. In practice, these points should be evenly distributed across the graph.
4. First, the Georeferencing toolbar's georeferencing menu under Auto Adjust is not selected.
5. On the Georeferencing toolbar, click the Add Control Point button.
6. Use the tool to pinpoint a control point on the scan, then right click,input X and Y Enter the actual coordinate position of the point. The geographic coordinate system should be used to enter latitude and longitude, latitude in decimal notation, such as 110°30 ' 30 ' should be written as 110.508 (=110+30.5/60).
7. In the same way, add multiple control points to the image and enter their actual coordinates.
8. After adding all the control points, under the Georeferencing menu, click Update Display.
9. After the update, it becomes the real coordinates.
10. Under the Georeferencing menu, click Rectify to save the calibrated image. Registration in ArcView:Software Preparation: ArcView, Image wape expansion module must be installed
Data Preparation: Raster images, must have coordinates (geodetic coordinates or graticules)
steps:
1, find the grid image of the coordinate point, at least four, sit punctuation distribution should be uniform.
2. Open ArcView, click Chart, click New, create a new table
3. Enter x, y coordinates (point coordinates on the grid),
4, click Save. Open the View window and click Theme,add Event Theme to set the X, Y field in the newly created table.
5. When you import into the view, you can see several points.
6, then convert to SHP, transform it into a point. shp file, added to the view.
7, in the view, Propertise set the projection method you want.
8, then the control point file is done.
9, Next, close all the Windows, click File-extension,image Wape, click on this module, the menu bar more than one line image Wape
10. Click on Image Wape--image wape session and select the raster image you want to match to the first box. Then select the point file that you just generated to the second box.
Second, Space registration (ArcGIS)
1, first in the ARC catalog to face the need to match the vector map set projection method (right click on the graph, in the Shapefile attribute table in the Shape field properties, define the corresponding projection mode;
2, through Excel or Notepad to create a text file, enter the coordinate values of several control points, X is the direction, y is the latitude, can be kilometer grid coordinates, and the above definition of the projection method corresponding to save;
3. Open the vector image in ArcMap and set it to "start editing" in "editor";
4. Set adjust data to "Select all the features in these layers" (all features in these), and adjustment in the "Spatial registration" (spatial), and then on the link Open the above control point file;
5, first double-click the coordinates in the control point file, and then find the corresponding point in the vector map double-click, that is, set up the first link, according to this method, establish a number of links;
6. Click "Registration" under "Space Registration" (available from gray to black), then registration is complete. Reference article: Live to the old, learn the old 3478 map Registration can be divided into image registration and space registration
Registration between image and image, image and point cloud in ArcGIS
