Algorithm for realizing rapid image splicing by using point-point line connection in common area in automotive panoramic display system

A technology of panoramic display and public area, applied in image enhancement, image data processing, graphics and image conversion, etc., can solve the problems of single displayed object and low resolution.

Inactive Publication Date: 2013-10-09
丹阳科美汽车部件有限公司
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Problems solved by technology

[0004] In view of the particularity of the application field of image stitching, when it is used in the car panoramic assisted parking system, the resolution of the camera that captures the image is not very high, and the image has image de-distortion processing before stitching, which also changes the quality of each image in the stitching image. For the gray value of each pixel, each pixel basically needs to be interpolated, and the display field is fixed, and the displayed object is relatively simple. For this special application, a simple and convenient method is proposed. Image Stitching Technology

Method used

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  • Algorithm for realizing rapid image splicing by using point-point line connection in common area in automotive panoramic display system
  • Algorithm for realizing rapid image splicing by using point-point line connection in common area in automotive panoramic display system
  • Algorithm for realizing rapid image splicing by using point-point line connection in common area in automotive panoramic display system

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Embodiment Construction

[0015] In the world coordinate system, go to the car center point coordinate origin 0, determine M1 and M2 two points in the coordinate system and measure the positions of the two coordinate points, measure the car width as w1, the car length as h1, and the shooting area of ​​the front camera is a rectangle abcd , the width is w2 meters, the height is h2 meters, the image pixel width is W1, and the width is H1, then the coordinate conversion relationship between M1 (X1, Y1) and its corresponding point N1 (x1, y1) is:

[0016] x 1 = X 1 * W 1 / w 2 y 1 = ( Y 1 - h ...

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Abstract

The invention relates to an algorithm for realizing rapid image splicing in an automotive panoramic display system. Two points are selected in a common area shot by cameras in a world coordinate system; the two selected points are found in a to-be-spliced image by spatial conversion; the two points in the image are connected to solve a linear equation; the image is cut by using the linear as a boundary; and the two cut images are spliced. According to the invention, the algorithm is targeted and has a good effect when being used in an automotive panoramic display system; and the algorithm can be realized easily; the requirement on the processor of the system is low; and the real-time performance is excellent.

Description

technical field [0001] Aiming at the automobile panorama technology, the invention proposes a method for fast splicing of images, which belongs to the field of vehicle engineering application. Background technique [0002] In the car panoramic reversing auxiliary parking system, a large number of image processing algorithms are involved. There are two cores, one is to de-distort the images collected by each camera, and restore the distorted images; the second is to convert the four-way The image information input by the camera is stitched into a bird's-eye view for panoramic display. A panoramic reversing assistance system can show that the degree of image distortion is directly related to image de-distortion processing, and the integrity of the bird's-eye view displayed on the monitor in the cab is determined by image stitching technology. [0003] Nowadays, image stitching technology is generally divided into five steps: (1), image preprocessing, basic operations on image...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/50G06T3/40
Inventor 刘建国李雪松章辉罗俊蒋国民蒋卫军
Owner 丹阳科美汽车部件有限公司
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