# Support tracking identification map

## 1. Understanding of support tracking identification map

The ordinary identification map is only used for recognition. After opening the scene, scan the recognition map. After the program detects the image, it will trigger the presentation of the scene resource, but the displayed content and the scanned image have no real-time position binding effect;

The recognition map that supports tracking only exists in the scene type \[WebAR Scene-Image Detection and Tracking]; after opening the scene, scanning the recognition map, the program will trigger the presentation of the scene resources after the image is detected, and the content presented is consistent with the The scanned image has the effect of real-time location binding.

## 2. Support tracking identification map specification

### 2.1 Author the identification map

1. We recommend that the identification map is as square as possible. If it must be rectangular, we recommend 5:4, 4:3, 3:4, 4:5 and other images that are biased to the square; 
2. Think as much as possible about the actual material of the scanned identification map when the user experiences the scene you created, such as the reflective material; 
3. It is recommended to add a circle of white borders to the identification map before uploading the identification map. If possible, it is recommended to have white borders on the printed picture as much as possible, as shown in the following figure:

![](/files/-MF4bK8Ub5I_EMtplTE5)


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