A calculation method of tv distortion

Abstract

The present application relates to a TV distortion calculation method and device, which are applied to automotive electronic products provided with a camera and an image sensor. The method includes: acquiring the resolution of the camera and the pixel size of the image sensor; According to the pixel size, the actual image height is obtained; the actual image height is processed to obtain the edge image height; the TV distortion is calculated according to the edge image height and the actual image height. The beneficial effects are: compared with the traditional TV distortion test, the method and device disclosed in this application have fast calculation efficiency and high accuracy.

Description

technical field [0001] The present application relates to the technical field of automotive electronics, and in particular, to a method for calculating TV distortion. Background technique [0002] With the development of in-vehicle electronic technology, in-vehicle cameras have gradually become standard components of automobiles. With the diversification of application scenarios, the solutions of cameras are also diversified. In the early selection and matching process of the image processor and the camera, the deformation caused by the combination of the camera and the image processor is an important indicator in the selection guide reference specification. One, its deformation is measured by TV distortion. Because it involves the body layout of the camera and the effect of the distortion correction of the later algorithm, the measurement of the TV distortion index in the early stage is very important. [0003] The traditional TV distortion test method is to use the physi...

AI Technical Summary

Problems solved by technology

[0003] The traditional TV distortion test method is to use a physical camera to shoot a grid chart, and then use a measuring tool to measure the corresponding position of the actually captured chart and then substitute it into the formula for calculation. This method requires a lot of manpower, material resources and financial resources. It can be completed, and the corresponding image processor and camera need to be prepared

However, in the early camera selection process, an image processor needs to adapt to multiple cameras, and the camera body generally cannot be obtained in the early stage or in real time.

Therefore, the traditional TV distortion test method can no longer satisfy the selection of the camera in the early stage, consumables, money and manpower are consumed, and in severe cases, the development progress of the project is delayed

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