Video camera automatic focusing system and video camera automatic focusing method

An automatic focus and camera technology, applied in the field of cameras, can solve the problems that the target scene cannot be well displayed and the effect cannot be obtained, and achieve the effect of fast speed, high efficiency and high focusing precision

Active Publication Date: 2018-09-28
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This all-focus imaging system highlights unimportant scenes, so that the target scene to be photographed cannot be well highlighted
When users view pictures, sometimes they cannot get the effect they want

Method used

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  • Video camera automatic focusing system and video camera automatic focusing method
  • Video camera automatic focusing system and video camera automatic focusing method
  • Video camera automatic focusing system and video camera automatic focusing method

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Embodiment Construction

[0040] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

[0042] Such as figure ...

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Abstract

The invention discloses a video camera automatic focusing system and a video camera automatic focusing method, which relate to the technical field of video cameras. The method provided by the invention comprises the following steps: a microprocessor receives a current scene picture photographed by a video camera, a focusing position of several target objects and a background in the picture is obtained through a picture focus estimation module, the microprocessor processes the information to obtain relative focusing position values, the values are transmitted to a focusing control module, the focusing control module controls a focusing motor, the video camera photographs one picture while moving every position, after all the input focus positions used in photographing, all the pictures aretransmitted to an image fusion processing module, and finally, a high-resolution image is obtained, and the image is previewed on a display screen of the video camera or stored in a memory chip. The method provided by the invention can solve the defects, such as inaccuracy of the existing manual focusing, slow speed and low efficiency of the other automatic focusing, and failure in immediately obtaining an ideal high-resolution image of the existing video camera.

Description

technical field [0001] The invention relates to the technical field of cameras, in particular to a camera automatic focusing system and method. Background technique [0002] The focusing of the camera was initially carried out manually, but now it is gradually replaced by an automatic focusing system or module, and with the development of the detector, the automatic focusing technology is constantly improving. Now more and more video cameras, digital video cameras, etc. have adopted automatic focusing technology. As a result, most of the automatic focusing problems are also highlighted. The focusing accuracy is not enough, and the focusing position cannot be found accurately; After the focus is adjusted, some targets are not clear, which requires post-processing by technicians to obtain a high-resolution image and other shortcomings. These problems directly affect the customer experience. [0003] Existing pan-focus imaging systems generally include three parts: a high-sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232
CPCH04N23/67H04N23/64
Inventor 吴羽峰金怀洲金尚忠唐莹黄河袁骁霖王杰王赟张益溢
Owner CHINA JILIANG UNIV
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