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An image acquisition terminal and image acquisition method

An image acquisition and terminal technology, applied in image communication, TV, color TV parts, etc., can solve the problems of slow focusing speed, achieve the effect of improving focusing speed, ensuring high-resolution image output, and improving user experience

Active Publication Date: 2017-06-06
YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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Problems solved by technology

[0005] The present invention provides an image acquisition terminal and an image acquisition method to solve the problem of slow focusing speed in the prior art

Method used

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  • An image acquisition terminal and image acquisition method
  • An image acquisition terminal and image acquisition method

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] see figure 1 , the first embodiment of the present invention provides an image acquisition terminal 100 . The image acquisition terminal 100 can be a smart device such as a mobile phone, a tablet computer, etc. The shooting involved in the present invention is not limited to taking pictures, videos, etc., and the following uses taking pictures as an example to illustrate, and videos, etc. are multiple photos in chronological order Synthesis is performed, that is, the present invention is also applicable to video shooting.

[0026] The image acquisition terminal 100 includes a first camera ...

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Abstract

The present invention provides an image acquisition terminal, which includes a first camera module, a second camera module and a processing module, the first camera module and the second camera module are used to simultaneously view the same scene, and the first camera The resolution of the output image of the module is greater than the resolution of the output image of the second camera module, the processing module detects and analyzes according to the contrast of different frame images, controls the second camera module to automatically focus and determine the focus point, and the processing module The module is also used to determine the focus point of the first camera module according to the focus point information of the second camera module, control the first camera module to directly focus according to the determined focus point, and acquire an image at the focus point. The present invention also provides an image acquisition method correspondingly. The invention can solve the problem of slow focus of the existing single-lens image acquisition module using high-resolution output images.

Description

technical field [0001] The present invention relates to the field of terminal shooting, and in particular to an image acquisition terminal and an image acquisition method capable of fast focusing. Background technique [0002] Auto Focus (Auto Focus) is to use the principle of object light reflection, the reflected light is received by the sensor CCD on the camera, and the method of driving the electric focusing device to focus through computer processing is called auto focus. Contrast method for focusing is to achieve automatic focus by detecting the contour edge of the image. The sharper the edge of the outline of the image, the greater its brightness gradient, or the greater the contrast between the scene and the background at the edge. Conversely, for an out-of-focus image, the contour edge is blurred, and the brightness gradient or contrast decreases; the farther out of focus, the lower the contrast. [0003] In the existing single-camera focusing system, the automati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232
CPCH04N23/45H04N23/673H04N23/743
Inventor 肖立锋
Owner YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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