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Method for adapting a gamma curve of a camera system of a motor vehicle, camera system and motor vehicle

机译:适应机动车的摄像机系统的伽马曲线的方法,摄像机系统和机动车

摘要

The invention relates to a method for adapting a gamma curve (G2) of a camera system by providing an input image of an environmental region of a motor vehicle and correcting the input image to an output image based on a current gamma curve (G2), by determining at least one region of interest in the output image by an image processing device, by determining a minimum and a maximum pixel value within the at least one region of interest of the output image, wherein the minimum and maximum pixel values define a current output range of values, by calculating associated minimum and maximum input pixel values (A min , A max ) of the input image from the minimum and maximum pixel values using the current gamma curve (G2), wherein the minimum and maximum input pixel values (A min , A max ) define a preferred input range of values (36), by generating a new gamma curve (G2') by defining a new output range of values (35') to the preferred input range of values (36), such that the new output range of values (35') is greater than the preferred input range of values (36), and applying the new gamma curve (G2') as current gamma curve (G2) for a subsequent input image.
机译:本发明涉及一种用于通过提供机动车的环境区域的输入图像并且基于当前的伽马曲线(G2)将输入图像校正为输出图像来适配照相机系统的伽马曲线(G2)的方法,通过图像处理设备确定输出图像中的至少一个感兴趣区域,通过确定输出图像的至少一个感兴趣区域内的最小和最大像素值,其中最小和最大像素值定义了当前通过使用当前伽玛曲线(G2)从最小和最大像素值计算输入图像的关联的最大和最小输入像素值(A min,A max),来计算值的输出范围,其中最小和最大输入像素值(A通过定义一个新的伽马曲线(G2')(定义一个新的输出值范围(35')到该首选输入值范围(36),来定义一个首选的输入值范围(36),这样新的输出范围值(35')的最大值大于值(36)的优选输入范围,并将新的伽玛曲线(G2')用作后续输入图像的当前伽玛曲线(G2)。

著录项

  • 公开/公告号EP2843937B1

    专利类型

  • 公开/公告日2016-03-09

    原文格式PDF

  • 申请/专利权人 CONNAUGHT ELECTRONICS LTD.;

    申请/专利号EP20140169765

  • 发明设计人 EOGHAN DENNY PATRICK;

    申请日2014-05-26

  • 分类号H04N5/202;G06T5;B60R1;H04N5/235;

  • 国家 EP

  • 入库时间 2022-08-21 14:50:02

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