Automatic Polarizer for Cctv Applications
    1.
    发明申请
    Automatic Polarizer for Cctv Applications 有权
    Cctv应用的自动偏振器

    公开(公告)号:US20080246948A1

    公开(公告)日:2008-10-09

    申请号:US11914797

    申请日:2005-12-22

    IPC分类号: G01J3/00 G01J4/00

    摘要: The invention is related to a camera device (10) for CCTV applications. The camera device (10) comprises a sensor (12) comprising a lens (14) for monitoring the scene in front of the camera device (10). At least one polarizer element (16) is assigned to said sensor (12), the at least one polarizer element (16) being rotatably mounted with respect to said sensor (12), or said polarizer element (16) uses opto-electric effects.

    摘要翻译: 本发明涉及用于闭路电视应用的照相机装置(10)。 相机装置(10)包括传感器(12),其包括用于监视相机装置(10)前面的场景的透镜(14)。 至少一个偏振器元件(16)被分配给所述传感器(12),所述至少一个偏振器元件(16)相对于所述传感器(12)可旋转地安装,或者所述偏振器元件(16)使用光电效应 。

    Process, apparatus and computer program for enhancing detail visibility in an input
    3.
    发明申请
    Process, apparatus and computer program for enhancing detail visibility in an input 有权
    用于增强输入中的细节可视性的过程,设备和计算机程序

    公开(公告)号:US20100092104A1

    公开(公告)日:2010-04-15

    申请号:US12515428

    申请日:2006-11-24

    IPC分类号: G06K9/40

    CPC分类号: H04N5/202 H04N1/4074

    摘要: In the technical field of video cameras gamma correction is an often used technique to compensate the non-linear effects of the CRT (cathode ray tube), in order to enhance visibility in images to be displayed. Gamma correction is—by way of example—expressed by the gamma function: A process for enhancing detail visibility in an input image comprising a step of applying a first transfer function (11) to the input image, thereby generating an intermediate image; a step of performing a statistical measurement (12), Mmt (2) on the intermediate image; a step of applying a second transfer function (14) to the intermediate image, thereby generating an output image; a step of performing a statistical measurement (15), Mmt (3) on the output image, a step of determining gain parameters gg, gk for the first and the second transfer function (11, 14) on basis of the statistical measurement results (8, 12, 15), Mmt (1), Mmt (2), Mmt (3) is proposed.

    摘要翻译: 在摄像机的技术领域中,为了增强要显示的图像的可视性,伽马校正是用于补偿CRT(阴极射线管)的非线性效应的常用技术。 通过伽马函数表示的伽马校正:用于增强输入图像中的细节可视性的处理,包括将第一传递函数(11)应用于输入图像的步骤,从而生成中间图像; 在中间图像上执行统计测量(12),Mmt(2)的步骤; 将第二传递函数(14)应用于中间图像,从而生成输出图像的步骤; 对输出图像执行统计测量(15),Mmt(3)的步骤,基于统计测量结果确定第一和第二传递函数(11,14)的增益参数gg,gk的步骤 8,12,15),Mmt(1),Mmt(2),Mmt(3)。

    Real-time signature embedding in video
    4.
    发明授权
    Real-time signature embedding in video 失效
    实时签名嵌入视频

    公开(公告)号:US07603559B2

    公开(公告)日:2009-10-13

    申请号:US10518270

    申请日:2003-06-12

    摘要: A method and system for embedding an authentication signature in an audio-visual signal such that only a part of an entire frame of the audio-visual signal is stored in a memory while the signature bits are calculated and the watermark is embedded. A signature is formed based on a first portion of said audio-visual signal, whereby said first portion is a pattern of horizontal lines of said audio-visual signal and has fewer lines than the number of lines of the entire audio-visual signal. Thereafter the signature generated is embedded in said audio-visual signal in the first portion and/or in another portion of the frame to be authenticated, whereby the other portion also is a pattern of horizontal lines. Thus only memory for some lines instead for all lines of the audio-visual signal is needed. In the case of an interlaced audio-visual signal, the first portion is preferably the first field of a frame of said audio-visual signal and the second portion is the second field of said audio-visual signal. In the case of a non-interlaced audio-visual signal, slices of said lines are preferably used for said portions.

    摘要翻译: 一种用于在视听信号中嵌入认证签名的方法和系统,使得只有一部分音视频信号的整个帧被存储在存储器中,同时计算签名比特并且嵌入水印。 基于所述视听信号的第一部分形成签名,由此所述第一部分是所述视听信号的水平线的图案,并且具有比整个视听信号的行数更少的行。 此后,生成的签名被嵌入在要认证的帧的第一部分和/或另一部分中的所述视听信号中,从而另一部分也是水平线的图案。 因此,仅需要一些线的存储器而不是视听信号的所有行。 在隔行视听信号的情况下,第一部分优选地是所述视听信号的帧的第一场,而第二部分是所述视听信号的第二场。 在非交错视听信号的情况下,优选地,对所述部分使用所述线的切片。

    Digital camera system and method
    5.
    发明授权
    Digital camera system and method 有权
    数码相机系统及方法

    公开(公告)号:US09100580B2

    公开(公告)日:2015-08-04

    申请号:US13391399

    申请日:2009-08-25

    申请人: Jan Klijn

    发明人: Jan Klijn

    CPC分类号: H04N5/2353 H04N5/2357

    摘要: A digital camera system (1) is disclosed, comprising at least one pixel (3); a shutter means (4) for the pixel (3), whereby the shutter means (4) is adapted to generate at least one shutter pulse Stmax, Stmin during a frame period t for the pixel (3), whereby the pixel (3) is switched from a non-sensitive state to a sensitive state during the at least one shutter pulse t; and a memory means (5) for storing light information collected by the pixel (3) in the sensitive state during the frame period t; whereby the shutter means (4) is adapted to generate at least two shutter pulses for the pixel (3) during the frame period t.

    摘要翻译: 公开了一种数字照相机系统(1),包括至少一个像素(3); 用于像素(3)的快门装置(4),由此快门装置(4)适于在像素(3)的帧周期t期间产生至少一个快门脉冲Stmax,Stmin,由此像素(3) 在至少一个快门脉冲t期间从非敏感状态切换到敏感状态; 以及存储装置(5),用于存储在帧周期t期间处于敏感状态的由像素(3)收集的光信息; 由此快门装置(4)适于在帧周期t期间为像素(3)产生至少两个快门脉冲。

    Apparatus, Process and Computer Program for Limiting the Vector Length of Colour Vectors
    6.
    发明申请
    Apparatus, Process and Computer Program for Limiting the Vector Length of Colour Vectors 审中-公开
    用于限制彩色矢量矢量长度的设备,过程和计算机程序

    公开(公告)号:US20100026889A1

    公开(公告)日:2010-02-04

    申请号:US12521072

    申请日:2006-12-29

    IPC分类号: H04N7/01

    CPC分类号: H04N9/68 H04N9/646

    摘要: RGB to NTSC/PAL encoders—as an example—commonly convert red, green and blue colour component signals (RGB) into their corresponding luminance (luma) and chrominance (chroma) signals in the respective standards in order to generate a composite video signal which can be used in connection with television sets and the like. Thereby, roughly spoken, the luminance signal represents the monochrome or black-and-white portion of the composite video signal and the chrominance signal represents the colour portion of the composite video signal. An apparatus 1 for limiting the vector length of colour vectors U, V carrying the chroma information for a composite video signal, is disclosed, which comprises an input module 2 being operable to receive two colour signal values U, V each representing one of the colour vectors, a calculating module 7, 8, 9, 10 being operable to calculate a vector length representative of a chroma vector derived by vector addition of the two colour vectors U, V, a comparator module 13 being operable to compare the vector length representative with a limiting value, a limiting module 11, 14 being operable to limit the vector lengths of the two colour vectors and/or the two colour signal values U, V under the condition that the vector length representative exceeds the limiting value by multiplying the vector lengths and/or the values with the reciprocal value of the vector length of the chroma vector.

    摘要翻译: 作为示例,RGB至NTSC / PAL编码器通常将红色,绿色和蓝色分量信号(RGB)转换为相应标准中的对应亮度(亮度)和色度(色度)信号,以便产生复合视频信号, 可以与电视机等一起使用。 因此,粗略地说,亮度信号表示复合视频信号的单色或黑白部分,色度信号表示复合视频信号的颜色部分。 公开了一种用于限制携带用于复合视频信号的色度信息的色彩矢量U,V的矢量长度的装置1,其包括输入模块2,其可操作以接收两个颜色信号值U,V,每个颜色信号值代表颜色之一 向量,计算模块7,8,9,10可操作以计算表示通过两个颜色向量U,V的向量相加导出的色度矢量的向量长度,比较器模块13可操作以将代表与 极限值,限制模块11,14可操作以在矢量长度代表超过限制值的条件下通过将矢量长度乘以来限制两个颜色矢量和/或两个颜色信号值U,V的矢量长度 和/或具有色度矢量的矢量长度的倒数值的值。

    Image processing method and device for constructing an image from
adjacent images
    7.
    发明授权
    Image processing method and device for constructing an image from adjacent images 失效
    用于从相邻图像构造图像的图像处理方法和装置

    公开(公告)号:US5444478A

    公开(公告)日:1995-08-22

    申请号:US174091

    申请日:1993-12-28

    IPC分类号: G06T1/00 G06T3/00 H04N7/18

    CPC分类号: H04N5/23238 H04N7/181

    摘要: A method of processing images for constructing a target image (Io) from adjacent images having a fixed frame line and referred to as source images (I1, . . . , Ii, Ij, . . . , In), the source and target images having substantially common view points. This method includes the steps of: digitizing the images, determining, for one of the pixels of the target image (Io), the address (Aq) of a corresponding point in one of all source images (Ij), determining the luminance value (F) at this corresponding point, assigning the luminance value (F) of this corresponding pixel to the initial pixel in the target image (Io), and repeating these steps for each pixel of the target image (Io). A device for performing this method includes a system of n fixed real cameras (C1, . . . , Cn) which provide n adjacent source images (I1, . . . , In) covering a wide-angle field of view and which have common view points (P), and an image reconstruction system (100) simulating a mobile camera referred to as target image (Co) for providing a sub-image referred to as target image (Io) of the wide-angle field of view, and constructed on the basis of source images having the same view point (P).

    摘要翻译: 一种用于从具有固定帧线并被称为源图像(I1,...,Ii,Ij,...,In)的相邻图像构成目标图像(Io)的图像的方法,源图像和目标图像 具有基本共同的观点。 该方法包括以下步骤:数字化图像,为目标图像(Io)的像素之一确定所有源图像(Ij)之一中对应点的地址(Aq),确定亮度值( F),将该对应像素的亮度值(F)分配给目标图像(Io)中的初始像素,并对目标图像(Io)的每个像素重复这些步骤。 用于执行该方法的装置包括n个固定实际照相机(C1,...,Cn)的系统,其提供覆盖广角视野的n个相邻源图像(I1,...,In),并且具有共同的 视点(P)和模拟被称为目标图像(Co)的移动摄像机的图像重建系统(100),用于提供被称为广角视野的目标图像(Io)的子图像,以及 基于具有相同视点(P)的源图像构造。

    Process, apparatus and computer program for enhancing detail visibility in an input
    8.
    发明授权
    Process, apparatus and computer program for enhancing detail visibility in an input 有权
    用于增强输入中的细节可视性的过程,设备和计算机程序

    公开(公告)号:US08854512B2

    公开(公告)日:2014-10-07

    申请号:US12515428

    申请日:2006-11-24

    CPC分类号: H04N5/202 H04N1/4074

    摘要: In the technical field of video cameras gamma correction is an often used technique to compensate the non-linear effects of the CRT (cathode ray tube), in order to enhance visibility in images to be displayed. Gamma correction is—by way of example—expressed by the gamma function: A process for enhancing detail visibility in an input image comprising a step of applying a first transfer function (11) to the input image, thereby generating an intermediate image; a step of performing a statistical measurement (12), Mmt (2) on the intermediate image; a step of applying a second transfer function (14) to the intermediate image, thereby generating an output image; a step of performing a statistical measurement (15), Mmt (3) on the output image, a step of determining gain parameters gg, gk for the first and the second transfer function (11, 14) on basis of the statistical measurement results (8, 12, 15), Mmt (1), Mmt (2), Mmt (3) is proposed.

    摘要翻译: 在摄像机的技术领域中,为了增强要显示的图像的可视性,伽马校正是用于补偿CRT(阴极射线管)的非线性效应的常用技术。 通过伽马函数表示的伽马校正:用于增强输入图像中的细节可视性的处理,包括将第一传递函数(11)应用于输入图像的步骤,从而生成中间图像; 在中间图像上执行统计测量(12),Mmt(2)的步骤; 将第二传递函数(14)应用于中间图像,从而生成输出图像的步骤; 对输出图像执行统计测量(15),Mmt(3)的步骤,基于统计测量结果确定第一和第二传递函数(11,14)的增益参数gg,gk的步骤 8,12,15),Mmt(1),Mmt(2),Mmt(3)。

    Image data processing apparatus with image pickup means
    9.
    发明授权
    Image data processing apparatus with image pickup means 失效
    具有图像拾取装置的图像数据处理装置

    公开(公告)号:US07990425B2

    公开(公告)日:2011-08-02

    申请号:US11995147

    申请日:2005-09-19

    IPC分类号: H04N5/228 H04N5/235 H04N5/20

    摘要: The invention relates to an image pickup apparatus (70) comprising an image pickup means (700) for forming a plurality of image signals (S,L) having different exposure conditions, combining means for combining said plurality of image signals (L,S) to form a combined image signal having an extended dynamic range, further comprising display and/or recording means (701) for displaying and/or recording said combined image signal, further comprising a function module (79) correcting at least one of the image signals (L,S) in order to achieve a smooth transition between the image signals (S, L) at a transition point.

    摘要翻译: 本发明涉及一种包括用于形成具有不同曝光条件的多个图像信号(S,L)的图像拾取装置(700)的图像拾取装置(70),用于将所述多个图像信号(L,S) 以形成具有扩展动态范围的组合图像信号,还包括用于显示和/或记录所述组合图像信号的显示和/或记录装置(701),还包括功能模块(79),校正至少一个图像信号 (L,S),以便在转变点处实现图像信号(S,L)之间的平滑过渡。