Superposing processing device of vehicle-mounted camera images and method thereof

An overlay processing and camera technology, applied in image memory management, image communication, vehicle components, etc., can solve problems such as noise, delayed images, and inability to guarantee image quality, and achieve the effect of low CPU performance and shortened delay.

Active Publication Date: 2013-03-06
HYUNDAI MOBIS CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Of course, when using a high-performance CPU with a fast processing speed, the problem of image quality degradation will not occur, but when using a low-performance CPU with a low processing speed, the image quality cannot be guaranteed.
In other words, due to delays in writing and reading of image data stored in memory and image data, graphics delays are visible to the naked eye or image noise is generated due to synchronization problems with Vsync

Method used

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  • Superposing processing device of vehicle-mounted camera images and method thereof
  • Superposing processing device of vehicle-mounted camera images and method thereof
  • Superposing processing device of vehicle-mounted camera images and method thereof

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Embodiment Construction

[0017] In the present invention, in the superimposition process of the vehicle-mounted camera image, two OSD window areas are allocated inside the memory, and the graphics stored in the two superimposition areas are superimposed on the front image or the rear image, which is also possible in lower CPU performance. Improve image overlay (Overlay) performance and system performance.

[0018] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] figure 1 It is a schematic block diagram of an overlay processing device according to an embodiment of the present invention. Although figure 1 Although the superimposition processing device employed in the parking support system was exemplified, the superimposition processing device of the present invention is not limited to the parking support system. Just to facilitate the understanding of the present invention, it is an example applied to the parking ...

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Abstract

Two OSD areas are distributed on an internal memory of the present invention. Image data formed by a steering angle linkage conducting wire can be directly read into the other OSD area without waiting a used OSD area to be initialized. Thus, delay time generated during the superposing and processing time of the video image and image data can be shortened, image noises caused by Vsync synchronization can be avoided finally, and high quality images can be realized with low CPU performance.

Description

technical field [0001] The present invention relates to a device and method for superimposing images of a vehicle-mounted camera, in particular, a device and method for superimposing images used in various vehicle-mounted electronic systems. Background technique [0002] Generally, the technique of synthesizing specific graphics on camera images or video images is called Overlay. This superimposition technology is widely used in the field of image processing technology, especially the superposition technology of images and graphics is widely used in the vehicle parking assistance system (Parking Guide System) at present. [0003] figure 1 It is the memory partition diagram of the vehicle parking assistance system using the traditional overlay technique. [0004] Such as figure 1 As shown, the memory partition of the vehicle parking assistance system adopting the traditional overlay technology is a buffer area, an image window area, and an OSD (On Screen Display) window ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/445H04N5/262
CPCB62D15/0275G06T1/60
Inventor 朴起坤
Owner HYUNDAI MOBIS CO LTD
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