Method for controlling charge-coupled device camera

A technology of a charge-coupled device and a control method, which is applied in the field of CCD cameras and can solve problems such as unreliable shooting of spaces

Inactive Publication Date: 2002-01-23
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] That is, the conventional photometry method has the disadvantage that, for example, when using such a method, a certain space cannot be reliably photographed due to irregularly changing illuminance in a parking lot

Method used

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  • Method for controlling charge-coupled device camera
  • Method for controlling charge-coupled device camera
  • Method for controlling charge-coupled device camera

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Embodiment Construction

[0023] Refer below Figure 5-7 The process of switching the shooting mode of the camera by measuring the irregularly changing illuminance in a certain space according to the present invention will be described in detail.

[0024] Figure 5 is a schematic block diagram showing an apparatus for applying the method of the present invention for switching the shooting mode of a camera by measuring irregularly changing illuminance.

[0025] like Figure 5 As shown, the shown device includes a lens unit 51 for focusing and magnifying the image; a charge-coupled device (CCD) 52 that detects the intensity of the radiation constituting the image entering through the lens unit 51 and outputs an analog signal; an A The / D conversion unit 53 converts the analog signal output by the CCD52 into digital image data; an area division unit 54 divides the digital image data into a certain number of unit areas; an illuminance detection unit 55 detects the illuminance of each area divided and a ...

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Abstract

A controlling method for a CCD camera in which a photographing area is divided into a number of cell regions, the illumination of each cell regions is detected the photographing mode of a camera is switched to a daytime or nighttime mode on the basis of the detected illumination so that an optimum image is photographed even under conditions where the illumination of a certain position and the total illumination condition in the photographing place changes irregularly.

Description

field of invention [0001] The present invention relates to CCD (charge-coupled device) camera, particularly relate to a kind of method of controlling CCD camera, when the illuminance condition of the shooting space changes irregularly, by determining the illuminance condition of the space, it can make the CCD camera shoot a clear image. image. Background technique [0002] Recently, as the demand for digital imaging devices has increased, portable and miniaturized cameras have appeared on the market. As an imaging sensor of such a camera, a CCD is widely used. [0003] Most cameras have an automatic exposure setting function or an automatic iris setting function, so they are able to shoot both during the day and at night. That is, the camera measures the illuminance of the scene, and when the illuminance is low, it controls the exposure when imaging so that the captured image has the appropriate brightness. On the other hand, it is very difficult to control the exposure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B7/00H04N5/235H04N5/238
CPCH04N5/2351H04N5/238H04N23/75H04N23/71G03B7/00
Inventor 金成奉
Owner LG ELECTRONICS INC
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