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    • 10. 发明申请
    • Systems and Methods for Detecting Image Quality Defects
    • 检测图像质量缺陷的系统和方法
    • US20090185204A1
    • 2009-07-23
    • US12018540
    • 2008-01-23
    • Wencheng WUJing WANG
    • Wencheng WUJing WANG
    • G06K15/00
    • H04N1/60
    • An approach for detecting and correcting printing system print quality defects is disclosed that allows defects to be corrected based on an analysis of image data collected over time, across many separate images, under a wide variety of system status and environmental conditions to allow detection of print quality defects that would otherwise be undetectable. The approach supports the detection and correction of defects related to colorant appearance effects that are correlated to colorant interactions. Techniques are described by which allow image data to be efficiently collected and stored to support a wide range of defect processing techniques. Defect processing may be performed in parallel with print job operations using spare processor CPU cycles and/or may be performed off-line by either the printing system processor or a separate defect processing system. Detected print quality defects may be corrected for using one or more interpolation techniques.
    • 公开了一种用于检测和校正打印系统打印质量缺陷的方法,其允许基于在各种系统状态和环境条件下在多种不同的系统状态和环境条件下经过多个单独的图像在一段时间内收集的图像数据的分析来校正缺陷,以允许检测打印 否则将无法检测到质量缺陷。 该方法支持检测和校正与着色剂相互作用相关的着色剂外观效应相关的缺陷。 描述了允许图像数据被有效地收集和存储以支持各种缺陷处理技术的技术。 可以使用备用处理器CPU周期与打印作业操作并行地执行缺陷处理和/或可以通过打印系统处理器或单独的缺陷处理系统离线执行缺陷处理。 检测到的打印质量缺陷可能会使用一种或多种插值技术进行纠正。