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Method of Estimation of Scanning System Quality

机译:扫描系统质量估算方法

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Estimation of scanner parameters is an important part in developing electronic document management system. This paper suggests considering the scanner as a system that contains two main channels: a photoelectric conversion channel and a channel for measuring spatial coordinates of objects. Although both of channels consist of the same elements, the testing of their parameters should be executed separately. The special structure of the two-dimensional reference signal is offered for this purpose. In this structure, the fields for testing various parameters of the scanner are sp atially separated. Characteristics of the scanner are associated with the loss of information when a document is digitized. The methods to test grayscale transmitting ability, resolution and aberrations level are offered.
机译:扫描仪参数的估计是开发电子文档管理系统的重要组成部分。本文建议将扫描仪视为包含两个主通道的系统:光电转换通道和用于测量物体空间坐标的通道。虽然两个通道由相同的元素组成,但应单独执行其参数的测试。为此目的提供二维参考信号的特殊结构。在这种结构中,用于测试扫描仪各种参数的字段SP本物分开。扫描仪的特性与文档数字化时的信息丢失相关联。提供了测试灰度传输能力,分辨率和像差水平的方法。

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