How to Use the Three-Point-One-Line Method in Subject Two?
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When the eye, a specific point on the car body, and a marker on the ground form a straight line, the position of the car can be determined. Look at the position of the red dot, a node on the windshield wiper, and align it with the line on the road surface on the right side of the car, maintaining a distance of approximately 30 cm from the car. Two parallel straight lines appear nearly parallel under weak perspective. If the car body in the rearview mirror is parallel to the line on the ground, then they are actually parallel. Set a reference target position, observe the actual feedback position, compare, and execute control.