Optimization with Unknown Objective Function
    1.
    发明申请
    Optimization with Unknown Objective Function 失效
    未知目标函数的优化

    公开(公告)号:US20080276245A1

    公开(公告)日:2008-11-06

    申请号:US12173947

    申请日:2008-07-16

    IPC分类号: G06F9/50

    CPC分类号: G06F9/5016

    摘要: Nonlinear optimization is applied to resource allocation, as for example, buffer pool optimization in computer database software where only the marginal utility is known. The method for allocating resources comprises the steps of starting from an initial allocation, calculating the marginal utility of the allocation, calculating the constraint functions of the allocation, and applying this information to obtain a next allocation and repeating these steps until a stopping criteria is satisfied, in which case a locally optimal allocation is returned.

    摘要翻译: 非线性优化应用于资源分配,例如计算机数据库软件中的缓冲池优化,其中只有边际效用是已知的。 用于分配资源的方法包括以下步骤:从初始分配开始,计算分配的边际效用,计算分配的约束函数,并应用该信息以获得下一个分配并重复这些步骤,直到满足停止标准 在这种情况下,返回局部最优分配。

    Optimization with unknown objective function
    2.
    发明授权
    Optimization with unknown objective function 失效
    未知目标函数的优化

    公开(公告)号:US08214840B2

    公开(公告)日:2012-07-03

    申请号:US12173947

    申请日:2008-07-16

    IPC分类号: G06F9/46 G06F15/18

    CPC分类号: G06F9/5016

    摘要: Nonlinear optimization is applied to resource allocation, as for example, buffer pool optimization in computer database software where only the marginal utility is known. The method for allocating resources comprises the steps of starting from an initial allocation, calculating the marginal utility of the allocation, calculating the constraint functions of the allocation, and applying this information to obtain a next allocation and repeating these steps until a stopping criteria is satisfied, in which case a locally optimal allocation is returned.

    摘要翻译: 非线性优化应用于资源分配,例如计算机数据库软件中的缓冲池优化,其中只有边际效用是已知的。 用于分配资源的方法包括以下步骤:从初始分配开始,计算分配的边际效用,计算分配的约束函数,并应用该信息以获得下一个分配并重复这些步骤,直到满足停止标准 在这种情况下,返回局部最优分配。

    Optimization with unknown objective function
    3.
    发明授权
    Optimization with unknown objective function 失效
    未知目标函数的优化

    公开(公告)号:US07433856B2

    公开(公告)日:2008-10-07

    申请号:US10669722

    申请日:2003-09-25

    IPC分类号: G06F17/00 G06N5/02

    CPC分类号: G06F9/5016

    摘要: Nonlinear optimization is applied to resource allocation, as for example, buffer pool optimization in computer database software where only the marginal utility is known. The method for allocating resources comprises the steps of starting from an initial allocation, calculating the marginal utility of the allocation, calculating the constraint functions of the allocation, and applying this information to obtain a next allocation and repeating these steps until a stopping criteria is satisfied, in which case a locally optimal allocation is returned.

    摘要翻译: 非线性优化应用于资源分配,例如计算机数据库软件中的缓冲池优化,其中只有边际效用是已知的。 用于分配资源的方法包括以下步骤:从初始分配开始,计算分配的边际效用,计算分配的约束函数,并应用该信息以获得下一个分配并重复这些步骤,直到满足停止标准 在这种情况下,返回局部最优分配。

    Mask generation mechanism
    6.
    发明授权
    Mask generation mechanism 有权
    面具生成机制

    公开(公告)号:US08693054B2

    公开(公告)日:2014-04-08

    申请号:US13345456

    申请日:2012-01-06

    IPC分类号: H04N1/60

    CPC分类号: H04N1/4051

    摘要: A method is disclosed. The method includes generating a seed pattern which ensures one dot per column, computing an auto correlation function and performing pixel error processing. Pixel error processing includes performing multiple operations during each iteration to create visually pleasing halftone mask patterns which follow a one dot per column constraint.

    摘要翻译: 公开了一种方法。 该方法包括生成保证每列一个点的种子图案,计算自相关函数并执行像素误差处理。 像素误差处理包括在每次迭代期间执行多个操作以创建视觉上令人满意的半色调掩模图案,其遵循每列约束的一个点。

    Hybrid Halftone Generation Mechanism
    7.
    发明申请
    Hybrid Halftone Generation Mechanism 有权
    混合半色调生成机制

    公开(公告)号:US20130265612A1

    公开(公告)日:2013-10-10

    申请号:US13440830

    申请日:2012-04-05

    IPC分类号: H04N1/405

    摘要: A method is disclosed. The method includes generating a Continuous Tone Image (CTI) with all pixel values same as a first gray level, generating an initial Half Tone Image (HTI) with all pixel values equal to minimum absorptance level and computing a change in pixel error for a first pixel. The change in pixel error is computed by identifying a first pixel indicated in a valid pixel map, toggling the first pixel with all the possible output states and swapping the first pixel with all neighbor pixels only if the stacking constraint is satisfied, updating the HTI with the maximum error decrease operation and continue to next pixel location till the end criteria is met.

    摘要翻译: 公开了一种方法。 该方法包括产生具有与第一灰度级相同的所有像素值的连续色调图像(CTI),产生具有等于最小吸收水平的所有像素值的初始半色调图像(HTI),并计算第一像素值的像素误差的变化 像素。 通过识别有效像素图中指示的第一像素来计算像素误差的变化,如果满足堆叠约束,则仅切换具有所有可能输出状态的第一像素并且将第一像素与所有相邻像素交换,更新HTI与 最大误差减小操作,并继续到下一个像素位置,直到满足结束标准。

    Method and system for designing multilevel halftone screens using spot functions
    8.
    发明授权
    Method and system for designing multilevel halftone screens using spot functions 有权
    使用现场功能设计多层半色调网版的方法和系统

    公开(公告)号:US07599097B2

    公开(公告)日:2009-10-06

    申请号:US11149235

    申请日:2005-06-10

    IPC分类号: G06K15/00

    CPC分类号: H04N1/4055 H04N1/40087

    摘要: A method and system for generating halftone tables, using a spot function, subdivides the pixels within the halftone cell of a halftone matrix into a plurality of sub-pixels, determines the value of the spot function corresponding to the position of each of the sub-pixels within the halftone matrix, repeats the subdividing and determining for all of the sub-pixels in the halftone matrix, ranks the values for the entire halftone matrix, normalizes the ranked values, generates a cumulative histogram based upon the normalized values, and stores the cumulative histogram as a halftone table.

    摘要翻译: 使用点功能产生半色调表的方法和系统将半色调矩阵的半色调单元内的像素细分成多个子像素,确定与每个子像素的位置相对应的光点函数的值, 半色调矩阵内的像素重复细分和确定半色调矩阵中的所有子像素,对整个半色调矩阵的值进行排序,对排序的值进行归一化,基于归一化值生成累积直方图,并存储 累积直方图作为半色调表。

    Detecting and compensating for color misregistration produced by a color scanner
    10.
    发明授权
    Detecting and compensating for color misregistration produced by a color scanner 有权
    检测和补偿由彩色扫描仪产生的颜色重合失调

    公开(公告)号:US07400430B2

    公开(公告)日:2008-07-15

    申请号:US10672234

    申请日:2003-09-25

    IPC分类号: H04N1/58 G03F3/08

    CPC分类号: H04N1/58

    摘要: A method, computer program product and system for detecting and compensating for color misregistration. A black/white edge or a solid color edge on a target may be scanned. A black/white edge may refer to a black image, e.g., black text, on a white surrounding background having a rapid spatial transition from black to white. A solid color edge may refer to a solid color image, e.g., solid color text, on a white surrounding background having a rapid spatial transition from color to white. A curve of gray values versus spatial pixel positions for each color channel, e.g., red, green and blue color channels, may be generated. A misregistration error may then be calculated by calculating the offset between the color channel curves. The misregistration error may then be used to calibrate the scanner to compensate for the detected color misregistration.

    摘要翻译: 一种用于检测和补偿颜色错配的方法,计算机程序产品和系统。 可以扫描目标上的黑色/白色边缘或纯色边缘。 黑白边缘可以指白色周围背景上的黑色图像,例如黑色文本,其具有从黑色到白色的快速空间转变。 纯色边缘可以指在白色周围背景上具有从颜色到白色的快速空间转变的纯色图像,例如纯色文本。 可以生成灰度值与每个颜色通道(例如红色,绿色和蓝色通道)的空间像素位置的曲线。 然后可以通过计算颜色通道曲线之间的偏移来计算重合失误。 然后可能会使用重合失误来校准扫描仪以补偿检测到的颜色重合失调。