Abstract: This application discloses a display method, an apparatus, and a system, so that an electronic apparatus can display prompt information of a target object at a first moment based on an obtained predicted position of the target object at the first moment and a measurement position before the first moment. This effectively reduces output jitter and improves user experience.

Abstract: This application is applicable to the field of intelligent vehicles, and specifically provides a projection method and apparatus, a vehicle, and an AR-HUD. The projection method includes: obtaining image information and position information of a calibration object; projecting the calibration object based on the image information and the position information of the calibration object and an imaging model; and when an overlap ratio between the calibration object and a projection plane of the calibration object is less than a first threshold, adjusting a parameter of the imaging model. According to this application, an image projected and displayed may be aligned with a real world, which improves a projection display effect.

Abstract: A head-up display includes a picture generation unit and a first lens. The picture generation unit is configured to output a first light ray and a second light ray. The first light ray is used to output and display a first picture, and the second light ray is used to output and display a second picture. When the first lens is at the first position, the first light ray and the second light ray do not pass through the first lens. When the first lens is at the second position, the first light ray passes through the first lens. The head-up display can implement switching between a single image plane and a plurality of image planes.