Shooting focusing method and device based on angular velocity detection

Abstract

The invention discloses a shooting focusing method and device based on angular velocity detection. The method includes receiving an image captured by camera equipment; detecting angular velocity data of the camera equipment at preset intervals, comparing the angular velocity data of a current frame and the angular velocity data of a previous frame, when the difference between the angular velocity data of the current frame and the angular velocity data of the previous frame is smaller than a preset threshold, starting automatic focusing, and when the difference is lager than or equal to the preset threshold, detecting the angular velocity data of the next frame. According to the shooting focusing method and device, by means of a gyroscope, whether focusing is to be carried out is judged. Data of the gyroscope can be directly obtained from a bottom drive, the operation state of the equipment can be obtained quickly and precisely, focusing is precisely and conveniently recognized, and the phenomenon that a focusing thread always occupies a CPU, and accordingly resources are wasted is avoided.

Description

technical field [0001] The invention relates to optical focusing technology, in particular to a camera focusing method and device based on angular velocity detection. Background technique [0002] Focusing is also called aiming at light and focusing. Focusing is the process of changing the object distance and distance through the camera's focusing mechanism to make the image of the subject clear. Nowadays, smart phones generally have the functions of touch screen focus and continuous focus. [0003] Touch screen focus refers to focusing on the multi-touch area of ​​the screen when a touch action is detected on the screen. This is to focus on the place you want to focus on according to the user's own wishes. [0004] Continuous focus is to detect the scene picture within a period of time, if there is no change, it will automatically focus on the central area. This focusing method is based on the actual imaging of the lens to judge whether it is correctly focused. The basis...

AI Technical Summary

Problems solved by technology

This focusing method is based on the actual imaging of the lens to judge whether it is correctly focused. The basis for judging is generally the contrast detection method, and the specific principle is quite complicated.

Continuous focusing needs to be obtained by analyzing and processing the frame image, so it will occupy more CPU resources. At the same time, if it is still in the process of moving, but the movement is not large, it is not easy to detect, and it is easy to appear that the phone is still In the process of moving, focusing is performed, which wastes CPU resources and poor user experience

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