公开(公告)号：US08860868B2

公开(公告)日：2014-10-14

申请号：US14054220

申请日：2013-10-15

Applicant: Axis AB

Inventor： Gunnar Dahlgren

IPC: H04N5/225 ,  G02B13/16 ,  H04N5/232 ,  H01L27/146

CPC classification number: H04N5/23212 ,  H01L27/14609 ,  H01L27/14625 ,  H04N5/2254

Abstract: A digital video camera that includes a photo sensor having a plurality of pixels, each pixel being arranged to obtain and output pixel data, a focusing device to set a focus of the digital video camera, a processing unit to process pixel data from a first subset of the pixels such that image frames of said video image stream are rendered based on pixel data in said first subset of pixels, and an array of micro lenses covering a second subset of the pixels, each of said micro lenses covering a number of pixels. The first subset of pixels is confined within an area and the second subset of pixels is arranged outside and adjacent to said first subset of pixels such that a frame of pixels of said second subset is formed around said first subset of pixels.

Abstract translation: 一种数字摄像机，包括具有多个像素的光传感器，每个像素布置成获得并输出像素数据;聚焦装置，用于设置数字摄像机的焦点;处理单元，用于处理来自第一子集的像素数据 的像素，使得基于所述第一子像素中的像素数据渲染所述视频图像流的图像帧，以及覆盖所述像素的第二子集的微透镜阵列，每个所述微透镜覆盖多个像素。 像素的第一子集被限制在一个区域内，并且第二像素子集被布置在所述第一子像素的外部和附近，使得所述第二子集的像素的帧围绕所述第一子像素形成。

公开(公告)号：US12063460B2

公开(公告)日：2024-08-13

申请号：US17943263

申请日：2022-09-13

Applicant: Axis AB

Inventor： Gunnar Dahlgren ,  Johan Jeppsson Karlin

IPC: H04N9/64 ,  H04N9/73

CPC classification number: H04N9/646 ,  H04N9/73

Abstract: A method for suppressing chromatic aberration, especially blue or red fringing, in a digital image with multiple color channels is disclosed. The method comprises negatively correcting a first color channel by subtracting an overshoot component of the first color channel. The subtraction is subject to a lower threshold, which is dependent on a local value of at least one further color channel.

公开(公告)号：US12254666B2

公开(公告)日：2025-03-18

申请号：US17943257

申请日：2022-09-13

Applicant: Axis AB

Inventor： Björn Benderius ,  Gunnar Dahlgren ,  Andreas Muhrbeck

IPC: G06V10/25 ,  G06T5/50 ,  G06V10/44 ,  G06V10/60 ,  G06V10/74

Abstract: A method for stray light compensation is disclosed. The method comprising: acquiring a first image with a first imaging device covering a first field-of-view; acquiring a second image with a second imaging device covering a second field-of-view, wherein the second field-of-view is larger than the first field-of-view and wherein the first field-of-view is included in the second field-of-view; estimating stray light components in pixels of the first image from pixel data of pixels in the second image; and compensating for stray light in the first image by subtracting the estimated stray light components in pixels of the first image. Also, a system for stray light compensation is disclosed.