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1.发明授权Image processing system and method employing combined black and white and gray scale image data 失效采用组合黑白灰度图像数据的图像处理系统和方法
公开(公告)号：US4924521A
公开(公告)日：1990-05-08
申请号：US134733
申请日：1987-12-18
CPC分类号： G06T3/4007
摘要： In order to reduce data storage and transmission bandwidth requirements, a high resolution gray scale image is represented in two separate image forms, namely, a high resolution, high sampling density black and white image and a lower resolution, lower sampling density gray scale image. Generating separate black and white and gray scale image data allows the use of either image form independently. The high resolution black and white image data and the low resolution gray scale image data may be recombined subsequently to produce reconstructed high resolution gray scale image data representing the image.
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公开(公告)号：US07148976B1
公开(公告)日：2006-12-12
申请号：US09598141
申请日：2000-06-21
CPC分类号： H04N1/00002 , H04N1/00042 , H04N1/00047 , H04N1/0005 , H04N1/00063 , H04N1/00068 , H04N1/00084 , H04N1/0009 , H04N1/32683 , H04N1/3878 , H04N1/407 , H04N1/6033
摘要： A system which provides a continuous indication of the operating integrity, of an entire image capture and processing system without the need for interfering with document throughput or the need for special paper test documents to be inserted into the scanning path. The system monitors performance from document presentation and scanner output, through image processing. It schedules maintenance of the system on an actual as needed basis. It continuously collects and monitors the imaging characteristics from work documents being processed and calculates a projected date at which maintenance will be required in order to retain system operating integrity. Minimum and maximum video values are collected from the output of each picture element sensor for each document. A running indication of system integrity is stored in a white trend array and a black trend array. These arrays are adjusted after an interval of time or one or more documents have been processed. The change in value of a trend array element depends upon whether the change indicated by the processing of the previous document indicates a deterioration of performance or a return to acceptable performance by the image capture system. After a further interval, the arrays are shifted in parallel to develop a maximum trend and a minimum trend for each picture element.
摘要翻译： 提供整个图像捕获和处理系统的操作完整性的连续指示的系统，而不需要干扰文档吞吐量或者需要将特殊的纸张测试文档插入到扫描路径中。 系统通过图像处理来监控文档呈现和扫描仪输出的性能。 它根据实际需要安排对系统的维护。 它不断收集和监控正在处理的工作文件的成像特征，并计算需要进行维护的预计日期，以保持系统的运行完整性。 从每个文档的每个图像元素传感器的输出收集最小和最大视频值。 系统完整性的运行指示存储在白色趋势数组和黑色趋势数组中。 这些数组在一段时间之后被调整，或者一个或多个文档被处理。 趋势数组元素的值的变化取决于由前一个文档的处理指示的变化是否表现为性能的恶化或图像捕获系统的可接受的性能的返回。 在进一步的间隔之后，阵列平行移动以形成每个像素的最大趋势和最小趋势。
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