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Method and apparatus for controlling optical image stabilization

An optical anti-shake and controller technology, applied in optics, projection devices, printing devices, etc., can solve problems such as difficulty in focusing

Active Publication Date: 2015-10-07
XIAOMI INC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The present disclosure provides a method and device for controlling optical anti-shake, so as to solve the problem in the related art that the mobile device is difficult to automatically focus due to shaking when shooting close-range objects

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  • Method and apparatus for controlling optical image stabilization
  • Method and apparatus for controlling optical image stabilization
  • Method and apparatus for controlling optical image stabilization

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Embodiment Construction

[0105] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0106] The terminology used in the present disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood...

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Abstract

The invention provides a method and apparatus for controlling optical image stabilization, and an image acquisition device of a mobile device. The method includes the following steps that: a rotational angular velocity when the mobile device jitters is acquired; a corresponding first control command is generated according to the rotational angular velocity; translational acceleration when the mobile device jitters is acquired; a second control command is generated according to the translational acceleration; and the first control command and the second control command are transmitted to a driving device so as to command the driving device to drive an optical lens to move, so that first displacement compensation and second displacement compensation can be performed. According to the method for controlling optical image stabilization provided by the invention, 4-axis optical image stabilization (OIS) is adopted, and effective light compensation can be performed on rotation and translation jigger in horizontal-axis and vertical-axis directions quickly and accurately in the close shot photographing process of the mobile device.

Description

technical field [0001] The present disclosure relates to the technical field of optical information collection, and in particular to a method and device for controlling optical anti-shake. Background technique [0002] Existing portable mobile devices are generally integrated with a miniature image acquisition device for simply and quickly realizing the camera function. When a mobile device is held in hand to take a picture of an object, an important reason affecting the quality of image shooting is the shake generated by the hand-held manner. [0003] In the related art, an optical anti-shake device is installed in an image acquisition device of a mobile device to solve the problem of blurred captured images caused by shaking when taking pictures by hand. The related art generally adopts the anti-shake method of two-axis OIS rotation to compensate the rotation along the horizontal axis and the vertical axis, so as to achieve the anti-shake effect. However, the above-menti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232G03B5/00
Inventor 孙长宇王彦腾郭峰
Owner XIAOMI INC
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