Image acquisition device and digital zooming method thereof

An image acquisition device, a technology of digital zoom, applied in image communication, TV, color TV components and other directions, can solve problems such as jumping, image screen is not smooth, etc.
CN105657237AActive Publication Date: 2016-06-08ALTEK SEMICON
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ALTEK SEMICON
Publication Date
2016-06-08

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Abstract

The invention provides an image acquisition device and a digital zooming method thereof. The method comprises the following steps of: acquiring an image of a scene by utilizing a main lens and an auxiliary lens, such that a main image and an auxiliary image are generated; performing image correction treatment of the main image and the auxiliary image, such that a main corrected image and an auxiliary corrected image are generated; and performing feature point detection of the main corrected image and the auxiliary corrected image so as to detect an overlapped region of the main and auxiliary corrected images, such that pixel displacement information and pixel depth information thereof are obtained. According to the zoom ratio, the pixel displacement information and the pixel depth information, image zooming treatment and the image deformation treatment of the main corrected image and the auxiliary corrected image are respectively carried out, such that a main deformed image and an auxiliary deformed image are generated; and, according to the zoom ratio, image fusion treatment of the overlapped region of the main and auxiliary deformed images is carried out, such that a digital zoom image is generated.
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Description

technical field

[0001] The present invention relates to an image acquisition device and its digital zoom method, and in particular to an image acquisition device with double lenses and its digital zoom method. Background technique

[0002] With the development of technology, various smart electronic devices, such as tablet computers, personal digital assistants, and smart phones, have become indispensable tools for modern people. Among them, the camera lenses of high-end smart electronic devices are already comparable to traditional consumer cameras, and can even replace them. A few high-end models also have the pixel and quality close to digital SLR cameras or the function of shooting 3D images.

[0003] Generally, when such electronic devices perform digital zooming to magnify images, they often have the problem of image blurring and distortion. For single-lens digital zoom, it uses image processing technology to directly digitally zoom in on a single image. However, aft...

Claims

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