A Dynamic Calibration Manual Focusing Method

Abstract

A dynamic calibration manual focus method, comprising the following steps: S10, receiving a camera startup instruction, and performing camera processing; S20, obtaining basic data information from a manual calibration MF table and an OTP, and MF is defined as Mf table(a,...,b) , a, b and the values ​​between them are fixed values, read the data in the original manual focus table according to the instruction, and read the data into the register of the camera optical sensor; S30, perform interpolation processing on the basic data information to establish Dynamically calibrate the MF table; S40. Use the new dynamic calibration MF table to obtain data information from the OTP for module consistency correction, obtain the original manual calibration MF table from the memory, and manually calibrate the MF according to the manual focus calibration. Table to move, corresponding to a clearer position. The present invention records the initial value when reading the old Mf Table, reads the OTP data and reconstructs an Mf Table, thereby avoiding the influence of module differences and making manual focus more accurate.

Description

technical field [0001] The invention relates to the field of mobile phone camera technology, in particular to a dynamic calibration manual focusing method. Background technique [0002] At present, there are more and more mobile phone functions, and many mobile phones have realized the manual focus function. That is, by adjusting the shaft to manually move the motor to focus. For example, if I need to focus on an object of 10cm, then manually push the motor to a fixed value (focus). And if the object you want to focus on is from far to near, just turn the shaft to move the motor accordingly, then you can always find a clear focus point between far focus and near focus. The moving code (hereinafter referred to as code) is moved according to the manual focus (hereinafter referred to as MF) table (hereinafter referred to as table) on the software. At the same time, in order to be more accurate, this table is generally used for the golden module. derived from actual measureme...

AI Technical Summary

Problems solved by technology

In this case, the effects of the above-mentioned three modules of AB and golden are obviously inconsistent, and golden is just a clearer point; because the difference between A and A is not too large, it may be a little blurry, and the rotation of the shaft can be adjusted to the close focus that A needs. 500code value; while B is very blurry and cannot move to the clear point required by B at all

It is definitely unacceptable for users who use the B module to match their mobile phones.

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