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1. 发明公开

EP0222548A3 Image sensors 失效
标题翻译：图像传感器
公开(公告)号：EP0222548A3
公开(公告)日：1987-07-29
申请号：EP86308361
申请日：1986-10-27
申请人： BRITISH AEROSPACE PUBLIC LIMITED COMPANY
发明人： Stewart, John British Aerospace Public Ltd. Comp.
IPC分类号： H04N05/217
CPC分类号： H04N5/367
摘要： Blemishes on a CCD array 5 are mapped by uniformly illuminating the array immediately prior to use and storing the locations of the blemishes in a random access memory 15. During use the outputs from the blemish locations are ignored. The blemish locations are mapped each time the array is operational.
摘要翻译：在CCD阵列5上的瑕疵通过在使用之前立即均匀地照亮阵列并将瑕疵的位置存储在随机存取存储器15中来映射。在使用期间，忽略来自瑕疵位置的输出。每次阵列运行时都会映射瑕疵位置。

2. 发明公开

EP0277394A3 Picture pick-up device including a solid-state sensor and operating with a signal interference reduction 失效
标题翻译：包含固态传感器的图像拾取装置和具有信号干扰减少的操作
公开(公告)号：EP0277394A3
公开(公告)日：1988-08-24
申请号：EP87202654
申请日：1987-12-30
申请人： N.V. Philips' Gloeilampenfabrieken
发明人： Knibbe, Engel Johannes
IPC分类号： H04N05/217
CPC分类号： H04N5/3595
摘要： The solid-state sensor may be particularly in the form of a frame transfer device (FT) in which smear is present as a signal interference. The sensor (FT) comprises a picture pick-up member (PP) having picture pick-up elements (P) which are sensitive to picture information from a scene to be recorded. A first and a second shift register member (SR1 and SR2) are coupled via first and second storage members (MP1, MP2), respectively to the picture pick-up member (PP). The first and second shift register members (SR1, SR2) have capacitive couplings (FG1, FG2) with first and second outputs (FT1, FT2), respectively of the sensor (FT) for supplying a signal with picture information and smear as interference and for supplying only smear as interference, respectively. The sensor outputs (FT1 and FT2) are connected to respective inputs (AT1 and AT2) of a differential amplifier (A). It is essential that during the performance of the interference reduction the second (FT2) or the first sensor output having a DC connection (FT2, AT2) with an electrically floating potential to a (+) amplifier input (AT2) and that the first (FT1) or the second sensor output have a DC connection to the (-) amplifier input (AT1) and that both sensor outputs (FT1 and FT2) have a capacitive output impedance. As a result an optimum interference reduction at the sensor outputs (FT) is obtained by means of a charge packet comparison.

3. 发明公开

EP0170908A3 Visible and near infrared imaging system 失效
标题翻译：可见和近红外成像系统可见和近红外成像系统
公开(公告)号：EP0170908A3
公开(公告)日：1988-01-07
申请号：EP85108496
申请日：1985-07-09
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Dudley, Dana
IPC分类号： H04N05/33 , H04N05/335 , H04N05/217
CPC分类号： H04N5/33 , H04N5/363 , H04N5/3653
摘要： An improved visible and near infrared imaging system (10) is disclosed having, in a first embodiment, an optical system (12), chopper (14), improved detector (16), improved first and second delta frames (20, 22), display (26) and timing and control circuits (18). The detector is a parallel amplification type detector with the sense lines each including a total subtraction chain. Each parallel amplifier chain is split so that two branches exit, each containing sample-and-hold circuits and one with a gain of -C s /( Cd + C s ) times the other. The outputs of the amplifier chains are multiplexed to the first delta frame (20) for storage by frame for summation with the outputs of the next frame for substantially reducing the reset noise. The summed output signals are multiplexed at a 2x rate into the second delta frame (22) for removal of the pattern noise and multiplexed out at a 1 x rate for display. In the second embodiment a transversal filter (24) receives the output of the second delta frame (22) for performing a peaking function on the signals for improving the resolution of the displayed image.

4. 发明公开

EP0149949A3 Stray light correcting device for television picture tube and television camera comprising such a device 无效
标题翻译：用于电视图像管和包含这样的设备的电视摄像机的光校正装置
公开(公告)号：EP0149949A3
公开(公告)日：1985-08-14
申请号：EP84402744
申请日：1984-12-27
申请人： THOMSON-CSF
发明人： Mourier, Christian
IPC分类号： H04N05/217
CPC分类号： H04N5/217
摘要： Les objectifs des caméras de télévision couvrent un champ supérieur au champ de l'image utile, c'est-à-dire de l'image destinée à être télévisée; or des défauis apparaissent qui proviennent d'un phénomène de diffusion, dans l'image utile, de lumières provenant de l'image non destinée à être télévisée, c'est-à-dire du pourtour de l'image utile.
Le dispositif est destiné à permettre la correction de la diffusion de pourtour. Il comporte pour cela des moyens d'analyse et de traitement (20, 21, 22, C, Rh, 12) pour analyser une bande entourant, sur la cible, l'image destinée à être télévisée, et pour fournir un signal de correction de diffusion représentatif d'une valeur moyenne des signaux d'analyse de la bande fermée.
Application aux prises de vues de télévision.

5. 发明申请

WO1998026582A1 DITHERED SCAN OFFSET CORRECTION 审中-公开
标题翻译：扫描扫描校正
公开(公告)号：WO1998026582A1
公开(公告)日：1998-06-18
申请号：PCT/US1997022313
申请日：1997-12-08
申请人： RAYTHEON TI SYSTEMS, INC.
发明人： RAYTHEON TI SYSTEMS, INC. , ALLRED, Rustin, W. , ALLEN, John, B. , SNYDER, John, L., III , WHITNEY, Donald, C. , LEATHAM, Anthony, L.
IPC分类号： H04N05/217
CPC分类号： H04N5/3656 , H04N5/33 , H04N5/349 , H04N5/367
摘要： A different offset correction method wherein, according to a first embodiment, updates are made on the offset correction during each iteration and, after four iterations, the offset for each pixel or detector element is updated from all of its neighbors to provide faster convergence than is obtainable by the prior art. In accordance with a second embodiment, the offset for each detector element is updated for every iteration and, for each update, the update is made with information from an entire row or an entire column of data. After four iterations, each offset has been updated with information from every detector element in the focal plane array. This provides even more rapid convergence compared to the prior art.
摘要翻译：不同的偏移校正方法，其中，根据第一实施例，在每次迭代期间对偏移校正进行更新，并且在四次迭代之后，从其所有邻居更新每个像素或检测器元件的偏移，以提供更快的收敛可通过现有技术获得。根据第二实施例，针对每个迭代更新每个检测器元件的偏移，并且对于每个更新，使用来自整个行或整个数据列的信息进行更新。在四次迭代之后，利用来自焦平面阵列中的每个检测器元件的信息来更新每个偏移。与现有技术相比，这提供了更快速的收敛。

6. 发明申请

WO1997007627A2 ENDOSCOPY VIDEO SYSTEM 审中-公开
标题翻译：内镜视频系统
公开(公告)号：WO1997007627A2
公开(公告)日：1997-02-27
申请号：PCT/DE1996001540
申请日：1996-08-19
申请人： KARL STORZ GMBH & CO. , IRION, Klaus, M. , STROBL, Karl, Heinz , FAUST, Uwe , CHATENEVER, David
发明人： KARL STORZ GMBH & CO.
IPC分类号： H04N05/217
CPC分类号： H04N5/2254 , A61B1/042 , G02B23/26 , H04N1/401 , H04N2005/2255 , Y10S600/921
摘要： An endoscopy video system has an endoscope, lighting means whose light is led by an optical fibre to one or several light outlets at the distal end of the endoscope, an endoscope objective arranged at the distal end of the endoscope that forms an image of the field lighted by the lighting means, an electronic image recorder with a plurality of image elements that record the image taken by the objective and that are controlled by an image recorder control unit, and an image processing unit that corrects and further processes the image signal from the image recorder and in particular represents it in real time on a display unit, such as a monitor. The image processing unit has a learning mode and a recording mode. In the learning mode, the image is taken of at least one known test object that is lighted by the lighting means. The image processing unit then compares the output signal of each image element of the image recorder with a predetermined set output signal for said test object, derives therefrom for each image element the light intensity and colour modifications of the recorded image in relation to the test object, whether these modifications are due to irregular lighting, marginal unsharpness of the objective, transmission defects of the optical fibre or irregularities in the sensitivity of the image recorder, and derives therefrom a correcting value for each image element. In the recording mode, the image processing unit corrects the output signal of each image element by means of the correcting value associated with each image element.
摘要翻译：本发明涉及与内窥镜的内窥镜视频系统; 的照明装置，其光在内窥镜的远端引导光纤的一个或多个光出射开口; 一个配置在内窥镜的内窥镜透镜，其图像由照明装置的物场照明的远端; 具有多个图像元素，其接收透镜的图像，并且控制图像Aufnahmer控制单元的电子图像传感器; 以及图像处理单元，其进行校正，所述图像传感器的图像信号并进一步加工，特别是在一个显示单元上实时诸如监视器。本发明的特征在于以下特征：所述图像处理单元具有一个“学习模式”和“记录模式”; 在“学习模式”拍摄图像的已知测试对象至少，这是由所述照明装置照明的; 图像处理单元从该所捕获的图像相对于测试对象，它是强度和颜色变化比较“学习模式”，用该试验对象的预定期望的输出信号的图像传感器的各像素的输出信号，确定对每一个像素，由于在照明的不规则性，由于透镜和所述图像转发的传输错误的边缘变薄，由于图像传感器的灵敏度不均匀，并且确定一个从中分配给各个象素的修正值而产生，和; 在“记录模式”被校正，图像处理单元，由相关联的图像元素此校正值的装置的每个像素的各自的输出信号。

7. 发明申请

WO1999003262A1 METHOD AND CIRCUIT CONFIGURATION FOR COMPENSATING VARIATIONS IN THE CMOS IMAGE SENSORS RESULTING FROM TEMPERATURE, VOLTAGE AND PRODUCTION 审中-公开
标题翻译：方法与电路补偿温度，电压和生产相关的年龄变化的CMOS图像传感器
公开(公告)号：WO1999003262A1
公开(公告)日：1999-01-21
申请号：PCT/DE1997002528
申请日：1997-10-30
申请人： INSTITUT FÜR MIKROELEKTRONIK STUTTGART , APEL, Uwe , SEGER, Ulrich , GRAF, Heinz-Gerd , POSTEL, Udo , SCHÖNHERR, Hans-Jörg , ARMBRUSTER, Armin
发明人： INSTITUT FÜR MIKROELEKTRONIK STUTTGART
IPC分类号： H04N05/217
CPC分类号： H04N5/361 , H04N5/374
摘要： Disclosed are a method and a circuit configuration designed to compensate variations resulting from temperature, voltage and production by means of CMOS image sensors which are exposed to radiation and generate, depending on the radiation intensity, electrical output signals below a logarithmic curve. The inventive method comprises the following steps: at least two reference CMOS sensors, which are maintained at the same temperature as the CMOS image sensors to be compensated but are not irradiated, are used to generate two reference signals, one of which corresponds to a reference dark value and the other, as a result of electric power application thereupon, to a reference light value. The reference signals are amplified separately from each other in such a way that the amplification conditions are identical to those needed for amplifying the output signals to be compensated. Said reference signals are sent to an A/D converter with a thermal regime identical to that of the electrical output signals form the CMOS image sensors to be compensated. For each CMOS image sensor point at least one correction value is stored in a memory unit. The correction value, which enables variations resulting from temperature, voltage and production to be compensated, is fed into the system to correct the output signal to be compensated and obtain FPN=(fixed-pattern-noise)-corrected output signals. The FPN-corrected output signals and the reference signals received ared fed to the A/D converter, where the output signals from the CMOS image sensors are compensated and converted into digital singals. The circuit configuration according to the invention is so designed as to allow implementation of the method described.
摘要翻译：的方法和用于补偿的电路布置将在温度，电压和在CMOS图像传感器，其被暴露于辐射和作为照射强度的函数产生电输出信号，这些信号都受到了对数特性制造有关的变化进行说明。本发明的方法的特征在于以下工艺步骤的组合：通过在相同的温度水平保持在至少两个参考CMOS传感器，诸如那些，但不照射CMOS图像传感器进行补偿的手段，生成两个基准信号，其中的一个参考暗值和通过加载电流，基准亮值的装置相应的其它。所产生的参考信号被分别扩增voneinader使得扩增条件是相同的补偿的输出信号的增益。基准信号与相同的电输出信号提供给补偿CMOS图像传感器转变温度到A / D转换器。在存储单元中，将被补偿为每个单独的修正值CMOS图像传感器点被至少存储，这是合适的，以补偿制造变化以及在被加载用于所述校正的特定将被补偿的输出信号，所以FPN（=固定模式噪声）获得-corrected输出，得到的FPN校正的输出信号，以及所述参考信号被提供给A / D转换器，其中补偿的CMOS图像传感器的输出信号，并转换成数字信号。本发明的电路装置用于执行该方法。

8. 发明申请

WO1997001238A2 METHOD OF OPERATING A CCD IMAGER, AND CCD IMAGER SUITABLE FOR THE IMPLEMENTATION OF SUCH A METHOD 审中-公开
标题翻译： CCD图像的操作方法和适用于实现这种方法的CCD成像器
公开(公告)号：WO1997001238A2
公开(公告)日：1997-01-09
申请号：PCT/IB1996000513
申请日：1996-05-28
申请人： PHILIPS ELECTRONICS N.V. , PHILIPS NORDEN AB
发明人： PHILIPS ELECTRONICS N.V. , PHILIPS NORDEN AB , KORTHOUT, Alouisius, Wilhelmus, Marinus , HEIJNS, Hendrik
IPC分类号： H04N05/217
CPC分类号： H04N5/37213 , H04N5/3595 , H04N5/372
摘要： The absence of a memory matrix in full frame CCD imagers renders it difficult to convert an image with a sufficiently high frame rate for displaying it again in a satisfactory manner on, for exemple, an LCD screen. To eliminate this disadvantage, an image is projected on a segment of the imaging matrix in an embodiment of the invention and, after the integration period, is stored in an adjoining, separately controllable segment which is used as a memory during the read-out while in the first segment a fresh image is received and converted into electric charge. During the transfer of the information from the first to the second segment, empty lines are formed between the lines containing information, in which empty lines compensation charge is formed during the charge storage which can be subtracted from the signals so as to compensate for the smear added to the signals during storage in the - exposed - second segment. The total number of lines can be limited in that signal lines are joined together or signal lines are drained off through the substrate. In a second embodiment, the charge pattern of the second segment may be transported back to the first segment again, which is used as a memory, while an image is received by the second segment. It is possible in this manner to convert and display a full frame with a comparatively high frequency.
摘要翻译：在全帧CCD成像器中不存在存储矩阵使得难以以足够高的帧速率转换图像，以便以令人满意的方式再次显示它，例如LCD屏幕。为了消除这个缺点，在本发明的一个实施例中，图像被投影在成像矩阵的一部分上，并且在积分周期之后被存储在邻接的，单独可控的段中，其在读出期间用作存储器，在第一段中，接收新的图像并将其转换成电荷。在从第一段到第二段的信息传送期间，在包含信息的行之间形成空行，其中在电荷存储期间形成空行补偿电荷，其可以从信号中减去以补偿污迹在暴露的第二段存储期间添加到信号中。可以限制总线数，因为信号线被连接在一起或者信号线通过衬底排出。在第二实施例中，第二段的电荷模式可以被再次传输回第一段，其被用作存储器，而图像被第二段接收。以这种方式可以以比较高的频率转换和显示全帧。

9. 发明申请

WO1992011733A1 NOISE REDUCTION PROCESSING MEANS FOR VIDEO SIGNALS 审中-公开
标题翻译：用于视频信号的噪声减少处理装置
公开(公告)号：WO1992011733A1
公开(公告)日：1992-07-09
申请号：PCT/GB1991002144
申请日：1991-12-03
申请人： GEC FERRANTI DEFENCE SYSTEMS LIMITED. , THOMSON, Richard, Charles
发明人： GEC FERRANTI DEFENCE SYSTEMS LIMITED.
IPC分类号： H04N05/217
CPC分类号： H04N5/357 , H04N5/21
摘要： Image intensified T.V. cameras are prone to produce noisy pictures, the noise being in the form of a speckle pattern of bright white dots above the background picture, and the noise speckles being typically of short duration and a localised nature. Noise reducers known hitherto use integration techniques, which average the output of several frames to reduce the noise peaks, but consequently suffer from the disadvantage of blurring a moving picture. The invention uses framestores for storing successive parts of three frames from the source of a video signal such as a camera, and a logical output selection unit (2) arbitrates between the outputs for the frame to produce a reduced noise output to be fed to a T.V. monitor (1). If the noise of a pixel in the central frame is increased significantly compared to that in the first frame, the output of the third frame for that pixel is used to arbitrate between the two, for example, by selecting as the output that of the first frame if it is found that the output of the third frame is nearer to that of the first frame than to the second. Isolated noise specks are thereby reduced without the problems of motion smear.

10. 发明申请

WO1990015501A1 METHOD AND APPARATUS FOR CORRECTING SHADING EFFECTS IN VIDEO IMAGES 审中-公开
标题翻译：用于校正视频图像中的下降效应的方法和装置
公开(公告)号：WO1990015501A1
公开(公告)日：1990-12-13
申请号：PCT/US1990002924
申请日：1990-05-24
申请人： EASTMAN KODAK COMPANY
发明人： EASTMAN KODAK COMPANY , VOGEL, Richard, Martin
IPC分类号： H04N05/217
CPC分类号： H04N1/401 , H04N5/3572
摘要： This invention is directed to reducing the size of the memory required to store correction information, by defining the two-dimensional non-uniformity characteristics in terms of two functions that are orthogonal. The orthogonal correction functions are stored in separate memories. During a scan, a pixel counter addresses the X memory while a line counter addresses the Y memory. The correction factors thus obtained are applied sequentially to correct the pixel data value at the current X and Y coordinates.
摘要翻译：本发明旨在通过根据正交的两个函数定义二维不均匀性特性来减小存储校正信息所需的存储器的尺寸。正交校正功能存储在分离的存储器中。在扫描期间，像素计数器对X存储器寻址，而行计数器寻址Y存储器。这样获得的校正因子被顺序地应用以校正当前X和Y坐标处的像素数据值。

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