A camera focusing system and method based on sight point

Abstract

The invention discloses a camera focusing system and method based on sight drop point. The system includes an image transmitter, a sight drop point positioning system, a focusing system and an AF circuit. The method includes: the user performs the calibration and identification of the sight point; the viewfinder obtains the user's monocular image; calculates the sight position on the viewfinder corresponding to the monocular image according to the model generated during the user's calibration; The location of the landing point is controlled by the shutter button to focus on the subject. The automatic focusing method provided by the embodiment of the present invention realizes the calibration of the user's line of sight, and uses the shutter button and the line of sight to locate and focus the focus point, which is flexible and conforms to the user's habits.

Description

technical field [0001] The present invention relates to the technical field of focusing, and in particular to a camera focusing system and method based on a sight point. Background technique [0002] With the popularity of cameras, the focusing technology closely related to camera imaging technology has also undergone unprecedented development. Autofocus systems are used on high-end cameras such as SLRs and mirrorless cameras. The focusing principle of a camera using auto-focus technology is roughly as follows: the photosensitive device on the camera calculates the light information through the processor in the camera, and then the auto-focus circuit controls the lens group to focus. [0003] When shooting with an auto-focus camera, users often require the object to be photographed to be in different positions in the viewing area of ​​the viewfinder. In existing auto-focus cameras, the user needs to set the focus point in advance, and then half-press the shutter button to ...

AI Technical Summary

Problems solved by technology

Due to the long-time auto-servo focusing, if this technology is used in a portable camera, the load on the camera’s power supply will be too heavy, resulting in a short standby time, which does not meet the portable requirements

Moreover, fighter jets need to carry out detailed setting and parameter input to the pilot's control before the pilot attacks. For the situation that the camera may be used by multiple people, this autofocus system and method of fighter jets are not suitable for civilian camera autofocus systems and methods.

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