The invention discloses a polarization correction optical lens group and an electronic rearview mirror system (CMS) thereof. The polarization correction optical lens group comprises a first lens, a second lens, a third lens, a fourth lens and a CMOS (Complementary Metal Oxide Semiconductor) connecting module which are sequentially arranged from an object side to an image side, and image distortion is corrected from a hardware angle; the first lens is a convex lens and has unequal magnification times in the vertical direction and the horizontal direction, the focal length is changed through the curvature radius so as to change the magnification times, and the first lens plays a main role in image distortion correction. In order to solve the problem of image distortion of the electronic rearview mirror of the automobile, correction is carried out from two aspects of hardware and software. The lenses with unequal magnification times in the vertical and horizontal directions are adopted, so that the number of the lenses and the manufacturing cost are reduced; an improved spherical model method is adopted, the model is simple, and calculation is convenient; and DSP and FPGA parallel pipeline operation is adopted, so that the processing effect and the real-time performance are ensured.

    本发明公开了偏矫正光学透镜组及其电子后视镜系统CMS。所述偏矫正光学透镜组,包括从物侧到像侧顺次排列的第一透镜、第二透镜、第三透镜、第四透镜和CMOS连接模块,从硬件角度校正图像畸变;第一透镜为凸透镜,在垂直与水平方向上拥有不均等的放大倍数,通过曲率半径改变焦距从而改变放大倍数,第一透镜对图像畸变校正起主要作用。对于汽车电子后视镜图像畸变问题,本发明从硬件和软件两方面进行校正。采用垂直与水平方向上不均等放大倍数的透镜,减少了透镜数量和制造成本;采用改进的球形模型法,模型简单,计算方便;采用DSP和FPGA并行流水操作,保证了处理效果与实时性。


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    Title :

    Polarization correction optical lens group and electronic rearview mirror system CMS thereof


    Additional title:

    偏矫正光学透镜组及其电子后视镜系统CMS


    Contributors:
    GUO ZHIYOU (author) / DENG YI (author) / ZHANG YEXIANG (author) / ZHANG KANG (author) / HE XIAO (author) / XIE CHANGXIN (author) / HUANG XIANG (author)

    Publication date :

    2023-06-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien / G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen



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