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公开(公告)号：US4053946A
公开(公告)日：1977-10-11
申请号：US634711
申请日：1975-11-24
申请人： Eugene W. Opittek , James L. Heard , Bruce W. Keller , Michael D. Pruznick , Thomas A. Bosseler
发明人： Eugene W. Opittek , James L. Heard , Bruce W. Keller , Michael D. Pruznick , Thomas A. Bosseler
CPC分类号： G06K13/0825 , G01S7/298 , G06T1/0007
摘要： A digital scan converter which comprises modular video processing units and modular memory and output units is adapted for processing applied sensor data of various formats so as to provide output data suitable for display on a common indicator. Parameters for processing operations, such as analog-to-digital converting, integrating and detecting, are implemented by the video processing modules in response to digital "set-up" and address words applied from a programmed microprocessor controller. The storage and readout format of the memory and output modules is also controlled by "set-up" and address words applied from the programmed controller.
摘要翻译： 包括模块化视频处理单元和模块化存储器和输出单元的数字扫描转换器适于处理各种格式的应用传感器数据，以便提供适于在公共指示器上显示的输出数据。 响应于数字“设置”和从编程的微处理器控制器应用的地址字，视频处理模块实现诸如模数转换，集成和检测的处理操作的参数。 存储器和输出模块的存储和读出格式也通过“编程”和从编程的控制器应用的地址字进行控制。
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公开(公告)号：US4158838A
公开(公告)日：1979-06-19
申请号：US869721
申请日：1978-01-16
CPC分类号： G09G5/20
摘要： A symbol smoothing system for synthetically increasing the effective resolution of an in-raster symbol generator memory by a factor of four. The system stores a special three bit code in selected memory elements representative of the existing and past two memory lines with the code actually being a video brightness distribution and positioning offset code. A code number in a single memory cell defines positional and intensity information for the display elements corresponding to that memory cell and to selected surrounding eight memory cells, all of the memory cells having time or positional correspondence to display element positions. The stored codes in the surrounding memory cells, as well as the instantaneous memory cell being decoded, provide intensity levels which are combined at selected display element positions. The video data input for each memory cell consists of the fractional X and Y position bit and symbol type bit and from each memory element, eight additional display elements are developed having selected brightness levels. By decoding this code bit information, the in-raster symbology provides a smooth transition from one display line to the next so as to eliminate the staircase effect in rotated or non-orthogonal lines. For each memory cell in a first field, such as the odd field, every other display resolution element is generated principally from the code in the memory cell and the alternate resolution element is generated principally from the same code. For the other field, such as the even field, the two elements on the display are generated principally from same information code in the memory cell. Further, each resolution element defined by a memory cell can have its intensity increased by codes stored in surrounding memory cells. The three bit memory codes define the location of the imaginary display elements and the video distribution patterns, which patterns simulate a gaussian brightness distribution to temper the edge sharpness of the digitally derived symbology. Thus by storing a single code for each selected memory cell, the system by proper decoding of the codes stored in that memory cell and the surrounding memory cells, develops both positional and intensity display information for the display elements while increasing the effective resolution of the in-raster symbol generator refresh memory by a factor of four. Another feature in accordance with the invention is the use of a common decoding structure by altering the stored codes with a bit rotator so as to be compatible with the common decoding structure, with the altered code representing the correct condition to be decoded.
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公开(公告)号：US5083204A
公开(公告)日：1992-01-21
申请号：US656382
申请日：1984-10-01
CPC分类号： H04N5/33 , H04N5/208 , H04N5/3655
摘要： A signal processor for use with an imaging sensor system that provides enhanced video imagery. The signal processor may be coupled to a FLIR system, for example, which comprises a plurality of detectors that are scanned across an image scene and reference temperature source during separate portions of each scan cycle. The signal processor comprises an input processor coupled to the imaging sensor system which processes analog signals derived from each of the plurality of detectors. The input processor normalizes the analog signals relative to one another during the active portion of the scan cycle based upon stored data derived from a predetermined sensor responsivity calibration procedure. This normalization function equalizes the gains associated with all channels of the sensor system. The input processor also restores the DC levels of each of the sensor channels to respective DC values related to the reference temperature source during the inactive portion of the scan cycle. This function is performed during the calibration procedure and while the system is in operation. The input processor digitizes the signals which are applied to a scan converter. The scan converter stores the digitized signals and converts the stored signals into signals which are compatible with a video monitor employed to view the image. An output processor is coupled to the scan converter that is employed to process signals in a manner which permits software-controlled digitized image enhancement thereof, and which converts the enhanced signals into analog video output signals compatible with the video monitor.
摘要翻译： 用于与提供增强的视频图像的成像传感器系统一起使用的信号处理器。 信号处理器可以耦合到FLIR系统，例如，其包括在每个扫描周期的分离部分期间跨越图像场景和参考温度源扫描的多个检测器。 信号处理器包括耦合到成像传感器系统的输入处理器，其处理从多个检测器中的每一个导出的模拟信号。 输入处理器在扫描周期的有效部分期间基于从预定的传感器响应度校准程序导出的存储的数据来相对于彼此进行归一化。 该归一化功能使与传感器系统的所有通道相关联的增益相等。 在扫描周期的非活动部分期间，输入处理器还将每个传感器通道的DC电平恢复到与参考温度源相关的相应DC值。 此功能在校准过程中和系统运行期间执行。 输入处理器将应用于扫描转换器的信号数字化。 扫描转换器存储数字化信号并将所存储的信号转换成与用于观看图像的视频监视器兼容的信号。 输出处理器耦合到扫描转换器，其被用于以允许其软件控制的数字化图像增强的方式处理信号，并且将增强的信号转换成与视频监视器兼容的模拟视频输出信号。
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