Reference database and method for determining spectra using measurements from an LED color sensor, and method of generating a reference database
    1.
    发明授权
    Reference database and method for determining spectra using measurements from an LED color sensor, and method of generating a reference database 有权
    用于使用来自LED颜色传感器的测量来确定光谱的参考数据库和方法,以及生成参考数据库的方法

    公开(公告)号:US07839498B2

    公开(公告)日:2010-11-23

    申请号:US11797062

    申请日:2007-04-30

    IPC分类号: G01J3/40 G02B25/04

    摘要: To determine spectra, integrated multiple illuminant measurements from a non-fully illuminant populated color sensor may be converted into a fully populated spectral curve using a reference database. The reference database is partitioned into a plurality of clusters, and an appropriate centroid is determined for each cluster by, for example, vector quantization. Training samples that form the reference database may be assigned to the clusters by comparing the Euclidean distance between the centroids and the sample under consideration, and assigning each sample to the cluster having the centroid with the shortest Euclidean distance. When all training samples have been assigned, the resulting structure is stored as the reference database. When reconstructing the spectra for new measurements from the sensor, the Euclidean distances between actual color samples under measurement and each cluster centroid are measured. The spectra are then reconstructed using only the training samples from the cluster corresponding to the shortest Euclidean distance, resulting in improved speed and accuracy.

    摘要翻译: 为了确定光谱,可以使用参考数据库将来自非完全光源的填充颜色传感器的集成多个光源测量值转换为完全填充的光谱曲线。 参考数据库被划分成多个簇,并且通过例如向量量化为每个簇确定适当的质心。 形成参考数据库的训练样本可以通过比较质心和所考虑的样本之间的欧氏距离,并将每个样本分配给具有最短欧几里德距离的质心的群集来分配给群集。 当所有训练样本都被分配后,结果存储为参考数据库。 当从传感器重建新测量的光谱时,测量测量下的实际颜色样本与每个聚类质心之间的欧氏距离。 然后使用仅对应于最短欧几里得距离的簇的训练样本重建光谱,从而提高速度和精度。

    Reference database and method for determining spectra using measurements from an LED color sensor, and method of generating a reference database
    2.
    发明授权
    Reference database and method for determining spectra using measurements from an LED color sensor, and method of generating a reference database 有权
    用于使用来自LED颜色传感器的测量来确定光谱的参考数据库和方法,以及生成参考数据库的方法

    公开(公告)号:US07383261B2

    公开(公告)日:2008-06-03

    申请号:US10758096

    申请日:2004-01-16

    IPC分类号: G06F7/00

    摘要: To determine spectra, integrated multiple illuminant measurements from a non-fully illuminant populated color sensor may be converted into a fully populated spectral curve using a reference database. The reference database is partitioned into a plurality of clusters, and an appropriate centroid is determined for each cluster by, for example, vector quantization. Training samples that form the reference database may be assigned to the clusters by comparing the Euclidean distance between the centroids and the sample under consideration, and assigning each sample to the cluster having the centroid with the shortest Euclidean distance. When all training samples have been assigned, the resulting structure is stored as the reference database. When reconstructing the spectra for new measurements from the sensor, the Euclidean distances between actual color samples under measurement and each cluster centroid are measured. The spectra are then reconstructed using only the training samples from the cluster corresponding to the shortest Euclidean distance, resulting in improved speed and accuracy.

    摘要翻译: 为了确定光谱,可以使用参考数据库将来自非完全光源的填充颜色传感器的集成多个光源测量值转换为完全填充的光谱曲线。 参考数据库被划分成多个簇,并且通过例如向量量化为每个簇确定适当的质心。 形成参考数据库的训练样本可以通过比较质心和所考虑的样本之间的欧氏距离,并将每个样本分配给具有最短欧几里德距离的质心的群集来分配给群集。 当所有训练样本都被分配后,结果存储为参考数据库。 当从传感器重建新测量的光谱时,测量测量下的实际颜色样本与每个聚类质心之间的欧氏距离。 然后使用仅对应于最短欧几里得距离的簇的训练样本重建光谱,从而提高速度和精度。

    Sensitivity matrix determination for adaptive color control
    3.
    发明授权
    Sensitivity matrix determination for adaptive color control 有权
    灵敏度矩阵确定自适应色彩控制

    公开(公告)号:US07782490B2

    公开(公告)日:2010-08-24

    申请号:US12024221

    申请日:2008-02-01

    IPC分类号: G06F15/00

    摘要: What is provided are a novel system and method for determining a sensitivity matrix for adaptive color control in a color marking device capable of performing device independent color correction. In one embodiment, a determination is made as to what control operation the color marking device is being characterized for. Nominal CMYK values are then selected based on the determined control operation. If the control operation is a gray balancing operation, the nominal CMYK values are selected using C=M=Y=L* and K*=0 values. Otherwise, the nominal CMYK values are selected using a CMYK to L*a*b* printer map. Color parameters are determined for the CMYK values based on the selected nominal CMYK values. A sensitivity matrix is then generated from the color parameters and CMYK values. The method facilitates calibration of dynamically varying color reproduction devices.

    摘要翻译: 提供了一种用于在能够执行设备无关色彩校正的彩色标记装置中确定自适应色彩控制的灵敏度矩阵的新型系统和方法。 在一个实施例中,确定颜色标记装置的特征在于什么控制操作。 然后根据确定的控制操作选择标称CMYK值。 如果控制操作是灰色平衡操作,则使用C = M = Y = L *和K * = 0值选择标称CMYK值。 否则,使用CMYK至L * a * b *打印机映射来选择标称CMYK值。 基于所选的标称CMYK值为CMYK值确定颜色参数。 然后从颜色参数和CMYK值生成灵敏度矩阵。 该方法便于校准动态变化的色彩再现设备。

    Sensitivity matrix determination via chain rule of differentiation
    5.
    发明授权
    Sensitivity matrix determination via chain rule of differentiation 有权
    通过分化链规则的灵敏度矩阵确定

    公开(公告)号:US08564830B2

    公开(公告)日:2013-10-22

    申请号:US12819591

    申请日:2010-06-21

    IPC分类号: G06F15/00

    CPC分类号: H04N1/603 H04N1/6016

    摘要: What is provided are a novel system and method for generating a sensitivity matrix for adaptive color control in a color marking device. In one embodiment, a first and second color space is identified. A total of N intermediate components are identified. Component sensitivity matrices are calculated and a sensitivity matrix is generated using a chain rule of differentiation over each successive component sensitivity matrix. The present method facilitates calibration of dynamically varying color reproduction devices.

    摘要翻译: 提供了一种用于在颜色标记装置中产生用于自适应颜色控制的灵敏度矩阵的新型系统和方法。 在一个实施例中,识别第一和第二颜色空间。 共鉴定出N个中间成分。 计算组分灵敏度矩阵,并使用每个连续分量敏感矩阵的分化链规则生成灵敏度矩阵。 本方法有助于校正动态变化的色彩再现装置。

    Accurate content-based indexing and retrieval system
    6.
    发明授权
    Accurate content-based indexing and retrieval system 有权
    准确的基于内容的索引和检索系统

    公开(公告)号:US08117183B2

    公开(公告)日:2012-02-14

    申请号:US12273208

    申请日:2008-11-18

    IPC分类号: G06F7/00 G06F17/30

    CPC分类号: G06F17/3025

    摘要: The computer algorithm described which indexes and retrieves images. A query in the form of an image object or an image facilitates image retrieval in order to retrieve several images close to user's request. A thumbnail form of rank ordered images is provided for viewing. The user selects the images and down loads the images for inclusion in the job. The images are then ripped and printed.

    摘要翻译: 描述了用于索引和检索图像的计算机算法。 以图像对象或图像形式的查询便于图像检索,以便检索靠近用户请求的多个图像。 提供排序图像的缩略图形式供查看。 用户选择图像并下载图像以包含在作业中。 然后将图像撕开并打印。

    Accurate content-based indexing and retrieval system
    7.
    发明申请
    Accurate content-based indexing and retrieval system 有权
    准确的基于内容的索引和检索系统

    公开(公告)号:US20090300055A1

    公开(公告)日:2009-12-03

    申请号:US12273208

    申请日:2008-11-18

    IPC分类号: G06F17/30

    CPC分类号: G06F17/3025

    摘要: The computer algorithm described which indexes and retrieves images. A query in the form of an image object or an image facilitates image retrieval in order to retrieve several images close to user's request. A thumbnail form of rank ordered images is provided for viewing. The user selects the images and down loads the images for inclusion in the job. The images are then ripped and printed.

    摘要翻译: 描述了用于索引和检索图像的计算机算法。 以图像对象或图像形式的查询便于图像检索,以便检索靠近用户请求的多个图像。 提供排序图像的缩略图形式供查看。 用户选择图像并下载图像以包含在作业中。 然后将图像撕开并打印。

    Estimating cardiac pulse recovery from multi-channel source data via constrained source separation
    8.
    发明授权
    Estimating cardiac pulse recovery from multi-channel source data via constrained source separation 有权
    通过约束源分离从多信道源数据估计心脏脉搏恢复

    公开(公告)号:US08617081B2

    公开(公告)日:2013-12-31

    申请号:US13247683

    申请日:2011-09-28

    IPC分类号: A61B5/02

    摘要: What is disclosed is a system and method for recovering a patient's cardiac pulse rate from a sequence of video images recording of that patient. In one embodiment, a reference signal of a particular frequency is generated at predetermined frequency intervals and a constrained source separation is performed on the source data to obtain an estimation of the source signal intended to be recovered. The reference signal is updated and constrained source separation is again performed. These operations are repeated for all frequencies of the reference signal. The frequency at which a minimum error is achieved is determined to be the subject's recovered cardiac pulse frequency. In such a manner, the source signal is extracted and recovered reliably from captured multi-channel RGB signals or multispectral signals. The teachings hereof find their uses in a variety of medical solutions including various military, security and telemedicine applications. Various embodiments are disclosed.

    摘要翻译: 所公开的是用于从记录该患者的视频图像的序列中恢复患者心脏脉搏率的系统和方法。 在一个实施例中,以预定的频率间隔产生特定频率的参考信号,并且对源数据执行受限的源分离以获得旨在被恢复的源信号的估计。 更新参考信号并再次执行约束源分离。 对参考信号的所有频率重复这些操作。 实现最小误差的频率被确定为受试者的恢复心脏脉搏频率。 以这种方式,从捕获的多通道RGB信号或多光谱信号可靠地提取和恢复源信号。 其教学方法可用于各种医疗解决方案,包括各种军事,安全和远程医疗应用。 公开了各种实施例。