METHOD OF CONTROLLING A FUNCTION OF A DEVICE AND SYSTEM FOR DETECTING THE PRESENCE OF A LIVING BEING
    1.
    发明公开
    METHOD OF CONTROLLING A FUNCTION OF A DEVICE AND SYSTEM FOR DETECTING THE PRESENCE OF A LIVING BEING 审中-公开
    一种用于控制装置和系统的功能用于确定活体的存在

    公开(公告)号:EP2404261A1

    公开(公告)日:2012-01-11

    申请号:EP10708622.5

    申请日:2010-03-01

    IPC分类号: G06K9/00

    摘要: A method of controlling a function of a device, includes obtaining a sequence (19;34;48) of digital images taken at consecutive points in time. At least one measurement zone (25) including a plurality of image points is selected. For at least one measurement zone (25), a signal (30;41;55) representative of at least variations in a time-varying value of a combination of pixel values at at least a number of the image points is obtained and at least one characteristic of the signal (30;41;55) within at least a range of interest of its spectrum relative to comparison data is determined. The determination comprises at least one of: (i) determining whether the signal (30;41;55) has a spectrum with a local maximum at a frequency matching a comparison frequency to a certain accuracy; and (ii) determining whether at least a certain frequency component of the signal (30;41;55) is in phase with a comparison signal to a certain accuracy. The function is controlled in dependence on whether the determination is positive.

    摘要翻译: 在连续的时间点拍摄的数字图像的控制装置的功能,包括获得一个序列的方法(48 19; 34)。 包括图像的点的多个至少一个测量区域(25)被选择。 对于至少一个测量区域(25),信号(30; 41; 55)代表的以在至少一些图像点的像素值的组合的一个随时间变化的值至少变化获得并至少 所述信号的一个特性(30; 41; 55)的至少一个的范围内,以比较数据频谱相对其感兴趣内确定性开采。 确定包括至少一个:(i)确定的采矿无论信号(30; 41; 55)具有在相匹配的比较频率,以一定的精度的频率的局部最大值的频谱; 和(ii)确定的采矿无论信号的至少一定的频率分量(30; 41; 55)与比较信号到一定的精度相。 该功能依赖于控制是否确定是肯定的。

    PROCESSING IMAGES OF AT LEAST ONE LIVING BEING
    2.
    发明公开
    PROCESSING IMAGES OF AT LEAST ONE LIVING BEING 有权
    VERBBEITUNG VON BILDERN MINDESTENS EINES LEBEWESENS

    公开(公告)号:EP2404283A2

    公开(公告)日:2012-01-11

    申请号:EP10708623.3

    申请日:2010-03-01

    IPC分类号: G06T7/20 A61B5/024 G06T7/40

    摘要: A method of processing images of at least one living being, includes obtaining a sequence (19) of digital images taken at consecutive points in time. At least one measurement zone (26) comprising a plurality of image points is selected. For each measurement zone (26), a signal (28,30) representative of at least variations in a time-varying value of a combination of pixel values at at least a number of the image points for use in determining at least one of a presence and a frequency value of at least one peak in a spectrum of the signal (28,30) corresponding to a frequency of a periodic physiological phenomenon is obtained. The step (25) of selecting at least one measurement zone (26) includes analyzing information based on pixel data of a plurality of image parts in at least one of the images (19), each image part including at least one image point, and selecting each measurement zone (26) from contiguous parts determined to have similar characteristics.

    摘要翻译: 一种处理至少一个生物的图像的方法,包括获得在连续的时间点拍摄的数字图像的序列(19)。 选择包括多个图像点的至少一个测量区域(26)。 对于每个测量区域(26),表示至少多个图像点的组合的时间变化值的变化的信号(28,30),用于确定至少一个存在 并且获得与周期性生理现象的频率对应的信号(28,30)的频谱中的至少一个峰值的频率值。 选择至少一个测量区域(26)的步骤(25)包括基于至少一个图像(19)中的多个图像部分的像素数据分析信息,每个图像部分包括至少一个图像点,以及 从被确定为具有相似特征的连续部分中选择每个测量区(26)。

    ILLUMINATION DEVICE COMPRISING A COLLIMATOR
    3.
    发明公开
    ILLUMINATION DEVICE COMPRISING A COLLIMATOR 审中-公开
    有准直器照明装置

    公开(公告)号:EP2297513A1

    公开(公告)日:2011-03-23

    申请号:EP09754294.8

    申请日:2009-05-27

    IPC分类号: F21V8/00

    摘要: The invention provides an illumination device (1) comprising a lighting unit (2). The lighting unit (2) comprises a light source (100) and a substantially flat collimator (200), arranged to collimate light source light (111). The collimator (200) has an entrance window (210), an edge window (220), a top collimator surface (201), a bottom collimator surface (202), a first collimating side edge (230) and a second collimating side edge (240). The lighting unit has an optical axis (O). One or more of the top collimator surface (201), the bottomcollimator surface (202), the first collimating side edge (230) and the second collimating side edge (240) comprise n*½ grooves (300), wherein n is a positive integer number, and wherein the grooves (300) independently have a longitudinal axis (301) having a groove direction angle (ω) with the optical axis (O) ≥0º and &and

    LIGHT GUIDING LAYER WITH INTEGRATED MIXING AND LIGHT EXTRACTING REGION
    5.
    发明公开
    LIGHT GUIDING LAYER WITH INTEGRATED MIXING AND LIGHT EXTRACTING REGION 审中-公开
    具有集成的混合与光取出区域导光层

    公开(公告)号:EP2089745A1

    公开(公告)日:2009-08-19

    申请号:EP07849192.5

    申请日:2007-11-20

    IPC分类号: G02B6/00

    CPC分类号: G02B6/0018 G02B6/0055

    摘要: A light guiding layer comprises an optical incoupling structure (3) on which light from a light source (7) is incident, said optical incoupling structure (3) having a slanted surface (15) configured to give the light a first directional distribution by reflecting the light in a first general direction, by total internal reflection within the layer, towards a reflecting structure (5). The reflecting structure (5) is configured to give the light a second directional distribution by reflecting the light in a second general direction towards the optical incoupling structure (3), and at least a part of the light reflected in the second general direction is transmitted through the slanted surface (15) of the optical incoupling structure (3). A display unit, a segmented backlight, a luminaire, and a method is also disclosed.

    A PRESENCE DETECTION SYSTEM AND A LIGHTING SYSTEM
    7.
    发明公开
    A PRESENCE DETECTION SYSTEM AND A LIGHTING SYSTEM 审中-公开
    存在检测系统和照明系统

    公开(公告)号:EP2633504A1

    公开(公告)日:2013-09-04

    申请号:EP11785109.7

    申请日:2011-10-20

    IPC分类号: G08B13/181 G08B21/22

    摘要: A presence detection system (1) for detecting a living being (10) within an area (12). The area (12) comprises at least two zones (12A;12B). The system (1) in total comprises at least two light sources (2A;2B) each of them having a different predefined spectrum and each of them radiating light in a different zone (12A;12B). The system comprises at least two sensing means (4A;4B) sensitive to light of the first predefined spectrum and the second predefined spectrum respectively. Each of the sensing means (4A;4B) is arranged for detecting light reflected from the living being (10) if present in the zone (12A;12B) of the area (12) and for generating a presence signal (14A;14B) based on detected light. The system comprises a processor device (8) that concludes the presence of the living being (10) within the area (12) in a zone wise way based on the presence signals. Such presence detection system provides relatively precise presence detection. The invention also relates to a lighting system comprising the above mentioned presence detection system (1).

    METHOD AND SYSTEM FOR IMAGE ANALYSIS
    9.
    发明公开
    METHOD AND SYSTEM FOR IMAGE ANALYSIS 审中-公开
    图像分析系统和程序

    公开(公告)号:EP2467805A2

    公开(公告)日:2012-06-27

    申请号:EP10749492.4

    申请日:2010-08-09

    IPC分类号: G06K9/00

    摘要: A method of enabling remote photoplethysmographic analysis includes: - obtaining a sequence (37;51) of images from at least one camera (3), each represented by pixel data representative of reflected ambient light in at least a limited range of wavelengths; and, - for at least one measurement zone (41), providing a signal representative of at least variations in a time-varying value of a combination of pixel values at at least a number of image points in the measurement zone (41) for use in determining at least one value of a physiological parameter. At least part of a selected subject represented in the sequence (37;51) of images is tracked, and a directable light source (4) illuminating at least part of the selected subject is controlled.