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Image composing method and device

A technology of image synthesis and original image, applied in the field of information fusion, can solve the problem of not being able to quickly and effectively acquire high depth-of-field images

Active Publication Date: 2009-11-25
VIMICRO ELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of this, the present invention provides an image synthesis method and device to solve the problem in the prior art that a high depth-of-field image with clear pixels can not be obtained quickly and effectively

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Embodiment Construction

[0041] The image synthesis method provided by the present invention first obtains the brightness information of each pixel of each original image in multiple original images; then extracts the high-frequency component from the brightness information of the pixel; according to the high-frequency component of each pixel, Determine the value of the pixel at the corresponding location in the composite image.

[0042] The method of the present invention is applicable to all monochrome images and color images, and for monochrome images, the value of a pixel point refers to the gray value of a pixel point in a monochrome image; The Red Green Blue (RGB) value of the point. The implementation steps of the method provided by the present invention will be described in detail below by taking a color image of size m*n as an example, where m and n are both positive integers.

[0043] see figure 1 , which is a flowchart of image synthesis in the present invention, and the specific implemen...

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Abstract

The invention discloses an image synthesis method and device. The method provided by the present invention includes: A. respectively obtaining the brightness information of each pixel in each original image; B. extracting the high-frequency component of the corresponding pixel from the brightness information of the pixel; C. according to each original image The high-frequency component of each pixel in the composite image is determined to determine the value of the corresponding pixel in the composite image. In addition, while extracting the high frequency component of each pixel in step B, the low frequency component of the corresponding pixel can be obtained, and the low frequency component of the corresponding pixel in the composite image is determined according to the low frequency component of each pixel in the original image. According to the method provided by the invention, a plurality of multi-focus images can be quickly and effectively synthesized into a clear image with a large depth of field in all directions.

Description

technical field [0001] The invention relates to the field of information fusion, in particular to an image synthesis method and device. Background technique [0002] In recent years, image acquisition devices such as digital cameras, digital video cameras, and video cameras have been rapidly popularized, and required images can be obtained through these image acquisition devices. However, due to the depth of field of the image acquisition device, the acquired image will not be completely clear. Objects can only be clearly imaged on the imaging surface within a limited distance before and after the focus point of the image acquisition device. This distance that can form a clear image is the depth of field. Due to the small depth of field of the existing image acquisition equipment, it can only accurately focus on a distance in the scene, resulting in a clear image only at the focus position. For example, when focusing on the foreground, the obtained image has a clear foregro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/50H04N5/243H04N5/14H04N23/76
Inventor 沈操
Owner VIMICRO ELECTRONICS CORP