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Internal memory of camera character during production

A camera, characteristic technology, applied in the direction of camera, color TV parts, TV system parts, etc., can solve problems such as color difference

Inactive Publication Date: 2008-09-24
NOKIA CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this causes differences in color because the cameras are not individually calibrated

Method used

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  • Internal memory of camera character during production
  • Internal memory of camera character during production

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Embodiment Construction

[0045] A new method, apparatus and software product are provided for storing camera module characteristics of a camera module (or camera) of an electronic device provided during production of the electronic device (e.g., factory testing) in a non-volatile memory of the camera module In the memory, the image is captured and processed by the electronic device using the camera module characteristics according to the embodiment of the present invention. The electronic device may be a wireless communication device, a portable electronic device, a camera, a camera-telephone mobile device, or the like.

[0046] According to one embodiment of the present invention, the camera module characteristics may include pixel calibration data for pixels of an image sensor of the camera module. Pixel calibration data includes at least, but is not limited to, dark current calibration, photoresponse non-uniformity calibration, and / or vignetting calibration.

[0047] According to a further embodim...

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Abstract

The specification and drawings present a new method, apparatus and software product for storing camera module characteristics of a camera module (or camera) of an electronic device provided during production (e.g., a factory testing) of the electronic device in a non-volatile memory of the camera module, such that the camera module characteristics are used by the electronic device for taking and processing images and / or identifying the camera module. The electronic device can be a wireless communication device, a portable electronic device, a camera, a camera-phone mobile device, etc.

Description

technical field [0001] The present invention relates generally to video electronics, and more particularly to storing camera module characteristics during production. Background technique [0002] An image sensor (or sensor) is the light-sensitive element in any digital camera. At the heart of a sensor is an array of pixels. The output value of each pixel is proportional to the energy of the light incident on the pixel, enabling the sensor to output an image. Color imaging can be done by placing a color filter in front of each pixel. [0003] Typically, sensors have non-ideal properties: for example, pixels are able to produce an output signal even in the dark, pixels have a limited capacity (become saturated), the relationship between light energy and output value is not the same for all pixels , and the pixels have different color responses. There are also pixels with fixed value responses. Additional parameters are introduced by placing the optics in front of the sen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/217G03B7/00
Inventor J·阿拉卡尔宇E·萨尔梅兰
Owner NOKIA CORP