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Picture edge dead point emendation method and device thereof

A technology for image edge and bad pixels, applied in the field of correction method and correction device for image edge bad pixels, capable of solving problems such as poor image data quality

Inactive Publication Date: 2008-10-29
ALICORP
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Problems solved by technology

[0007] In this way, the practice of ignoring the bad pixels on the edge of the scanned image data will make the image data displayed on the fluorescent screen poor in quality, which is not allowed for higher-level image processing chips

Method used

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  • Picture edge dead point emendation method and device thereof
  • Picture edge dead point emendation method and device thereof
  • Picture edge dead point emendation method and device thereof

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Embodiment Construction

[0045] Please refer to FIG. 2 , which is a schematic block diagram of the device for correcting bad pixels at the edge of an image according to the present invention. The image edge defect correction device 2 of the present invention includes a sensor 210, an input interface 220, a memory unit 230, a defect correction unit 240, an image cropping unit 250, an image enhancement and adjustment unit 260 and an image encoding unit 270.

[0046] The input interface 220 is connected to the sensor 210 and the memory unit 230 for receiving image data (image frame) sensed by the sensor 210 to further scan pixels of each frame of detected image data. When the sensor 210 connected to the input interface 220 supports an image expansion function, the image data received by the input interface 220 may be expanded image data. In addition, the data generated by the input interface 220 processing the image data is temporarily stored in the memory unit 230 .

[0047] The dead point correction ...

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Abstract

The invention discloses a method for correcting an image edge dead pixel and a correction device thereof. The method of the invention can take expansion pixels generated on an image data edge and detected by an expansion sensor, or mirror image pixels assumed at the image data edge, or even select reference pixels required by the pixels of the image data edge as reference so as to meet the demands of detection and compensation of the dead pixels of the image data edge under the circumstance that the pixels of the image data edge are scanned without neglect.

Description

technical field [0001] The invention relates to an image processing chip, in particular to a correction method and a correction device for bad pixels on the edge of an image. Background technique [0002] Image sensors can convert light signals into electrical signals, so image sensors can be used to capture image sources. The image sensor performs the work of image capture based on the basic unit of pixel. Generally speaking, the image sensor configures the pixels in the form of an array. Therefore, the quality of the pixels becomes the quality evaluation standard of the image sensor. [0003] Due to the sensor manufacturing process, it is not easy to make every pixel of the image sensor be good. Therefore, it is normal for the image sensor to have some defective pixels after it is manufactured. In addition, the image sensor is used for a long time, and it will also have aging phenomenon to form dead pixels. These dead pixels will make the image sensor unable to sense t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/335G06T9/20H04N5/374H04N5/3745
Inventor 黄启庭郑士彬
Owner ALICORP
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