| 摘要 |
The present invention relates to a turning determining method for assisting navigation. The navigation method provides a navigation display while a GPS terminal device is moving along a curved path and when GPS information is not available, the navigation method captures a plurality of background images upon the GPS terminal device moving along the curved path to determine a turning and maintain navigation frames. Then the background images are processed to obtain the deviation direction of the reference point by subtraction and comparison, or to capture specific object image as reference. The navigation method utilizes a GPS terminal device comprising an image capture unit to capture images.
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