Check patentability & draft patents in minutes with Patsnap Eureka AI!

Image defective pixel correction method, device, electronic device and medium

A dead pixel, image technology, applied in image enhancement, image data processing, solid-state image signal generator and other directions, can solve problems such as large resource consumption

Inactive Publication Date: 2018-11-06
ゼジャンハーレイテクノロジーカンパニーリミテッド
View PDF20 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a method, device, electronic equipment and medium for correcting dead pixels of an image, which are used to solve the problem of large resource consumption in the prior art when correcting dead pixels of an image

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Image defective pixel correction method, device, electronic device and medium
  • Image defective pixel correction method, device, electronic device and medium
  • Image defective pixel correction method, device, electronic device and medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] figure 2 It is a schematic diagram of an image bad pixel correction process provided by an embodiment of the present invention, and its specific processing process is as follows:

[0050] S201: Determine the color format of the bad pixel to be corrected.

[0051] In the embodiment of the present invention, the image dead pixel correction method is applied to an electronic device, and the electronic device may be a PC, a tablet computer, a smart phone, a personal digital assistant (Personal Digital Assistant, PDA), a field programmable gate array (Field Programmable Gate Array, FPGA), image acquisition equipment and image processing equipment, etc.

[0052]When the imaging element contains a Bayer filter, the image collected by the imaging element is an image in Bayer format; when the imaging element does not contain a Bayer filter, the image collected by the imaging element is an image in a single Mono format. Among them, each pixel in the Bayer format image correspo...

Embodiment 2

[0073] In order to improve the efficiency of bad pixel correction, on the basis of the above-mentioned embodiments, in the embodiments of the present invention:

[0074] According to the pixel value of the target reference point that is not a bad point in the reference point, determining the corrected pixel value of the bad point includes:

[0075] Divide reference points with equal distances into a reference point group according to the distance between each reference point and the dead point;

[0076] Obtaining each reference point group sequentially according to the order of the distance from the bad point from small to large; for the currently obtained reference point group, judging whether each reference point contained in the reference point group is a bad point;

[0077] If not, determine the corrected pixel value of the bad point according to the pixel value of the non-bad point reference point in the reference point group;

[0078] If yes, get the next reference poin...

Embodiment 3

[0087] In order to improve the accuracy of bad pixel correction, on the basis of the above-mentioned embodiments, in the embodiments of the present invention:

[0088] The number of acquired reference points is four.

[0089] In the embodiment of the present invention, since in the row where the bad point to be corrected is located, when obtaining a reference point with the same color format as the bad point and a smaller distance from the bad point, the more reference points are obtained, the non- The more reference points there are for bad points, the higher the success rate of bad point correction is, and correspondingly, the ratio of the number of reference points occupied by the reference point with a larger distance from the bad point is larger, while the one with a farther distance from the bad point When the dead point correction is performed on the reference point, correction errors may occur, resulting in inaccurate pixel values ​​after the bad point correction.

[...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an image defective pixel correction method, device, electronic device and medium, aiming to solve the problem that in the prior art, when image defective pixel correction is carried out, the resource consumption is large. The image defective pixel correction method includes determining the color format of the defective pixel to be corrected; acquiring each pixel point in the line where the defective pixel is located, acquiring at least two pixel points arranged at the two sides of the defective pixel in the line and having the same format with the defective pixel, and having the smaller distances from the defective pixel; according to the pixel value of the target reference point of the non-defective pixel in the reference point, determining the pixel value after the defective pixel is corrected. According to the invention, by only acquiring the at least two pixel points arranged at the two sides of the defective pixel in the line where the defective pixel is located, and having the same format with the defective pixel, and having the smaller distances from the defective pixel, the defective pixel can be corrected, resources are saved, and the image defective pixel correcting efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of image correction, in particular to a method, device, electronic equipment and medium for correcting dead pixels in an image. Background technique [0002] When generating an image, the imaging element (sensor) generally contains a color filter array, that is, a Bayer (Bayer) filter, so that the light collected by each photosensitive unit in the imaging element can only collect one wavelength after passing through the Bayer filter. In which, after the light collected by any photosensitive unit is filtered by Bayer filter, the color format of the pixel corresponding to the photosensitive unit is red (R) format, green (G) format and blue (B) format any of the Due to the damage of a photosensitive unit in the imaging element, the photosensitive unit cannot normally receive light, resulting in black, white or certain color spots in a fixed position of the image, which we call dead pixels. [0003] The existi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06T5/00H04N9/04
CPCH04N23/10G06T5/80
Inventor 陈建国李铭
Owner ゼジャンハーレイテクノロジーカンパニーリミテッド
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com