Vehicle-mounted panoramic image system based on fiber optic image transmission technology and calibration method thereof

Abstract

The invention discloses a vehicle-mounted panoramic image system based on a fiber optic image transmission technology. The system comprises a plurality of fiber optic image transmission bundles, head ends of the fiber optic image transmission bundles are connected with a front-end lens, tail ends of the fiber optic image transmission bundles are connected with an image collection module, the image collection module is connected with a control system, the front-end lens obtains images and transmits the images to the image collection module through optical fibers, the image collection module and the control system perform unified collection and processing to integrate the images into a complete image for display; the front-end lens obtains the images and transmits the images through the optical fibers, thereby ensuring the image transmission quality, finally image collection and corresponding image processing comprising image correction, rotation, splicing, synthesis and other algorithms are performed by using the image collection module so as to achieve the purposes of improving the image quality and reducing the production and installation costs; and the invention provides a calibration method, which facilitates the installation and debugging of the whole system, reduces the installation difficulty and reduces the working intensity of workers as well.

Description

technical field [0001] The invention relates to the application field of panoramic systems, in particular to a vehicle-mounted panoramic image system based on optical fiber image transmission technology and a calibration method thereof. Background technique [0002] At present, it is difficult for the seventh-generation seamed panoramic parking assistance system originally used in automobiles to enter the aftermarket such as the field of automobile modification, mainly because there are many bottlenecks in technology research and development, industrial production, and installation and promotion of this product. [0003] 1. Some imaging systems have to reduce the function of the system when the complexity of the algorithm cannot be reduced. For example, BMW's parking assistance system does not include a front view, and Nissan's AVM system does not perform fusion and stitching on images. [0004] 2. Some imaging systems reduce the image quality in order to achieve real-time ...

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Problems solved by technology

[0004] 2. Some imaging systems reduce the image quality in order to achieve real-time video processing. The current system often cannot meet the data volume processing requirements of the four-way D1 video input, and adopts the method of sampling to reduce the image data volume, making it Become a CIF image, or even give up image beautification processing, which reduces the difficulty of data processing, but also reduces image quality

[0005] 3. After some imaging systems are installed on the car, debugging requires professional technicians and takes several hours. The entire installation and debugging process relies too much on manual work, resulting in non-standardized operations

This is mainly because the calibration of the camera requires a special environment and requires personnel with professional skills to operate, which hinders the popularization of the panoramic imaging parking assistance system in the automotive aftermarket. Of course, this is also one of the important technical barriers to the panoramic imaging system. one

[0006] 4. Due to immature technology, the quality of split-screen display "panoramic" systems on the market is mostly unstable

However, the technical threshold of the real panoramic surround view system is relatively high.

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