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Anti-shake control method and circuit for tilt depth-of-field camera, camera and mobile phone

A control method and technology of control circuit, which are applied in the direction of telephone structure, TV, color TV, etc., can solve problems such as image jitter, and achieve the effects of reducing anti-shake cost, good anti-shake effect, and reducing development difficulty.

Active Publication Date: 2021-09-07
重庆市天实精工科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide an anti-shake control method, circuit, camera and mobile phone for a tilted depth-of-field camera to solve the problem of image shaking caused by tilting the mobile phone

Method used

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  • Anti-shake control method and circuit for tilt depth-of-field camera, camera and mobile phone
  • Anti-shake control method and circuit for tilt depth-of-field camera, camera and mobile phone
  • Anti-shake control method and circuit for tilt depth-of-field camera, camera and mobile phone

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Embodiment Construction

[0040] This embodiment will be described in detail below in conjunction with the accompanying drawings.

[0041] Such as figure 1 As shown, in the present embodiment, a method for anti-shake control of a tilting depth-of-field camera uses a gyroscope 3 to detect the angular velocity of the camera; the method includes the following steps:

[0042] Step 1: Obtain the angular velocity of the gyroscope 3 in the sampling period T, and calculate the average angular velocity V in the sampling period T;

[0043] Calculate the offset angle N of the gyroscope, the calculation formula is as follows:

[0044] N=T*V;

[0045] Calculate the current actual angle N of the gyroscope Ri ,Calculated as follows:

[0046] N Ri =N-N E +N Ri-1 -GZ;

[0047] Where: N Ri-1 is the last angle of the gyroscope, N E is the offset angle of the gyroscope in a static state, and GZ is the reference zero point;

[0048] Step 2: According to the current actual angle N of the gyroscope 3 Ri Calculate...

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Abstract

The invention discloses an anti-shake control method and circuit for a tilt depth-of-field camera, the camera and a mobile phone. The method detects the angular velocity of the camera by using a gyroscope and comprises the following steps: 1, acquiring an angular velocity of the gyroscope in a sampling period T, calculating an average angular velocity V in the sampling period T, calculating a deviation angle N of the gyroscope, and calculating a current actual angle NRi of the gyroscope; 2, calculating a shake distance L of the camera according to the current actual angle NRi of the gyroscope; and 3, controlling an OIS motor to compensate for the tilt displacement of the camera based on the shake distance L. According to the invention, the problem of image jitter caused by mobile phone inclination can be solved.

Description

technical field [0001] The invention belongs to the technical field of anti-shake cameras, and in particular relates to an anti-shake control method, a circuit, a camera and a mobile phone for an inclined depth-of-field camera. Background technique [0002] Currently, mobile phone camera modules include OIS optical image stabilization, EIS electronic image stabilization and AIS intelligent image stabilization. OIS optical image stabilization is to adjust the movement of the lens on the X and Y planes to compensate for the displacement of the mobile phone when it vibrates, so as to avoid shaking of the optical path; EIS electronic image stabilization is an algorithmic operation that avoids blurring by affecting the cropping compensation method, but at the expense of Image resolution; AIS intelligent image stabilization integrates the advantages of OIS optical image stabilization and EIS electronic image stabilization. Tilt OIS optical image stabilization achieves displacemen...

Claims

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Application Information

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IPC IPC(8): H04N5/232H04M1/02
CPCH04M1/0264H04M2250/52H04N23/6812H04N23/685
Inventor 古昌根姜林森唐超齐书章平卢江邓小光王军成
Owner 重庆市天实精工科技有限公司
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