Image shooting anti-shaking manner for handheld camera equipment

A handheld and equipment technology, applied in image communication, color TV parts, TV system parts, etc., can solve the problems of high hardware cost, single-frame image blur, etc., achieve good image quality, prevent jitter and blur, cost reduction effect

Active Publication Date: 2012-05-16
BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The technical problem to be solved by the present invention is to propose a method for preventing the hand-held camera from shaking when taking pictures, in order to solve the problem that the har

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  • Image shooting anti-shaking manner for handheld camera equipment
  • Image shooting anti-shaking manner for handheld camera equipment
  • Image shooting anti-shaking manner for handheld camera equipment

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Embodiment Construction

[0043] The specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0044] Although the shaking of handheld camera equipment (such as a camera) exists all the time, its impact on image clarity is negligible when the scene to be photographed is daytime and outdoors with sufficient lighting, and the exposure time is short. However, in an indoor environment with insufficient lighting or at night, as the exposure time increases, the impact of jitter on image clarity cannot be ignored. For traditional film cameras, the industry has an empirical formula for calculating the safe shutter speed: the shutter speed cannot be lower than the reciprocal of the focal length of the lens. For mobile phone cameras, since the sensor size is different from that of film cameras, this formula cannot be directly applied, but similar results can be obtained through proportional conversion calculations. For example: the diagonal size of th...

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Abstract

The invention relates to a method which can prevent handheld camera equipment from shaking when shooting. The method comprises the following steps of: judging a normal shutter speed needed by brightness on a current scene whether have exceeded a safe shutter speed of the handheld camera equipment or not; if no, directly releasing a shutter for shooting; if so, analyzing high-speed image sequences based on a preview mode to confirm size of the current handheld camera equipment when the equipment is shaking; confirming current shaking whether is larger than a set threshold value according to a preset threshold value range, if the current shaking is smaller than the set threshold value, so a user can be allowed to press down the shutter for shooting; if the shaking continuously becomes larger within a certain time, a condition for shutter releasing is not satisfied, so exposure parameters can be automatically adjusted, namely, gain can be automatically increased, meanwhile, exposure time is reduced, moreover, the threshold value used for judging degree of shaking is correspondingly enlarged, so that the shooting is easier to be reached within an allowable shaking range.

Description

technical field [0001] The invention relates to a hand-held camera device, in particular to a method for preventing the hand-held camera device from shaking when taking pictures. Background technique [0002] As we all know, the process of the camera acquiring an image is that the light of the external scene passes through the optical lens to form an optical image on the image sensor (that is, the two-dimensional distribution of the light and dark details of the image), and through a certain time integration, the optical image is converted into an electrical image. In this process, the staticity of the optical image on the image sensor must be kept, otherwise the obtained integrated image will be blurred, which will seriously affect the quality of the image. [0003] In a dark environment, in order to obtain an image with suitable brightness, the exposure time of the image sensor needs to be correspondingly longer. If the camera used at this time is a handheld shooting devi...

Claims

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Application Information

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IPC IPC(8): H04N5/232H04N5/235H04N5/14
Inventor 陈远林福辉
Owner BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
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