Optical image measurement device
    22.
    发明授权
    Optical image measurement device 有权
    光学图像测量装置

    公开(公告)号:US07643154B2

    公开(公告)日:2010-01-05

    申请号:US11961195

    申请日:2007-12-20

    IPC分类号: G01B11/02

    摘要: An optical image measurement device comprises: a light source configured to emit a low-coherence light; an interference-light generator configured to generate an interference light, by splitting the low-coherence light into a signal light and a reference light, and superimposing the signal light passed through a measurement object and the reference light passed through a reference object; a changer configured to change a difference in optical path length; a detector configured to detect the interference light; an image forming part configured to form an image of the measurement object within a predetermined frame based on the result of the detection; an analyzer configured to analyze the image, and specify a position of the image within the frame; and a controller configured to control the changer based on the specified position to change the difference so that an image newly formed is placed in a predetermined position within the frame.

    摘要翻译: 光学图像测量装置包括:被配置为发射低相干光的光源; 干涉光发生器,被配置为通过将低相干光分解为信号光和参考光来产生干涉光,并且叠加通过测量对象的信号光和通过参考对象的参考光; 更换器,被配置为改变光路长度的差异; 检测器,被配置为检测干涉光; 图像形成部,被配置为基于检测结果在预定帧内形成测量对象的图像; 分析器,其被配置为分析所述图像,并且指定所述图像在所述帧内的位置; 以及控制器,其被配置为基于所述指定位置来控制所述更换器以改变所述差异,使得新形成的图像被放置在所述帧内的预定位置。

    Fundus observation device
    23.
    发明授权
    Fundus observation device 有权
    眼底观察装置

    公开(公告)号:US07641338B2

    公开(公告)日:2010-01-05

    申请号:US11689090

    申请日:2007-03-21

    IPC分类号: A61B3/14 A61B3/10

    CPC分类号: A61B3/102

    摘要: Image forming part 220 forms a 2-dimensional image of the surface of the fundus oculi Ef (fundus oculi image) and a tomographic image of the fundus oculi Ef. The fundus oculi image 212a and the tomographic image Ga captured at the first examination time and the fundus oculi image 212b and the tomographic image Gb captured at the second examination time are stored in an image storage part 212. Position information generating part 214 generates the position information 213a indicating the position of the tomographic image Ga in the fundus oculi image 212a and the position information 213b indicating the position of the tomographic image Gb in the fundus oculi image 212b. The generated position information 213a and 213b are stored in information storage part 213. Image processing part 230 adjusts the position between the tomographic images Ga and Gb based on such position information 213a and 213b.

    摘要翻译: 图像形成部220形成眼底Ef(眼底图像)的表面的二维图像和眼底Ef的断层图像。 在第一检查时间拍摄的眼底图像212a和眼底图像Ga以及在第二检查时间捕获的眼底图像212b和断层图像Gb被存储在图像存储部212中。位置信息生成部214生成位置 指示眼底图像212a中的断层图像Ga的位置的信息213a和指示眼底图像212b中的断层图像Gb的位置的位置信息213b。 所生成的位置信息213a和213b被存储在信息存储部分213中。图像处理部分230基于这样的位置信息213a和213b来调整断层图像Ga和Gb之间的位置。

    Fundus observation device
    24.
    发明授权
    Fundus observation device 有权
    眼底观察装置

    公开(公告)号:US07527378B2

    公开(公告)日:2009-05-05

    申请号:US11675657

    申请日:2007-02-16

    IPC分类号: A61B3/10

    CPC分类号: A61B3/102

    摘要: Technology is provided, capable of easily acquiring high precision tomographic images of the desired observation site of the fundus oculi. A fundus observation device 1 is provided, comprising: an interferometer that generates interference light LC from a reference light LR via a reference mirror 174 and a signal light LS that reaches the fundus oculi Ef after low-coherence light L0 is split into that signal light LS and reference light LR; a CCD 184 that detects interference light LC; an image forming part 220 that forms image data G of a tomographic image based on detection results of the CCD 184; a display part 240A; an operation part 240B for specifying an observation mode (observation site); and a reference mirror drive mechanism 243. The image data G of a tomographic image includes image data of a normal image G (Re) and an inverse image G (Im). A controlling part 210 that displays the selected normal image G (Re) or inverse image G (Im) on the display part 240A along with moving the reference mirror 174 by controlling the reference mirror drive mechanism 243 based on the selected observation mode.

    摘要翻译: 提供技术,能够容易地获取眼底的所需观察部位的高精度断层图像。 提供了一种眼底观察装置1,包括:干涉仪,其经由参考镜174产生来自参考光LR的干涉光LC,以及在低相干光L0被分裂成该信号光之后到达眼底Ef的信号光LS LS和参考光LR; 检测干涉光LC的CCD184; 基于CCD 184的检测结果形成断层图像的图像数据G的图像形成部220; 显示部240A; 用于指定观察模式(观察部位)的操作部240B; 和参考镜驱动机构243.断层图像的图像数据G包括正常图像G(Re)和逆图像G(Im)的图像数据。 控制部210通过基于所选择的观察模式控制参考镜驱动机构243,在显示部240A上显示所选择的正常图像G(Re)或反转图像G(Im)。

    Fundus observation device
    25.
    发明授权
    Fundus observation device 有权
    眼底观察装置

    公开(公告)号:US07458684B2

    公开(公告)日:2008-12-02

    申请号:US11621726

    申请日:2007-01-10

    IPC分类号: A61B3/10

    摘要: Highly reliable technology is provided with the capable of forming three-dimensional images of fundus oculi. The image forming part 220 of a computational control unit 200 forms images of the surface of fundus oculi Ef based on results of detecting fundus oculi catoptric light of light illuminated by a fundus camera unit 1A, in addition to forming tomographic images of the fundus oculi Ef based on results of detecting interference light LC from the OCT unit 150. The controlling part 210 synchronizes the timing of detecting fundus oculi catoptric light of light illuminated by the fundus camera unit 1A with the timing of detecting interference light LC from the OCT unit 150. The correction processing part 240 corrects the image positions of the tomographic images based on results of detecting interference light LC from the OCT unit 150 on the basis of two-dimensional images based on the results of detecting fundus oculi catoptric light of light illuminated from the fundus camera unit 1A. The image processing part 230 forms three-dimensional images of fundus oculi Ef based on tomographic images for which the image positions have been corrected.

    摘要翻译: 提供了高度可靠的技术,能够形成眼底三维图像。 计算控制单元200的图像形成部220除了形成眼底Ef的断层摄影图像之外,还基于检测由眼底照相机单元1A照射的光的眼底反射光的结果来形成眼底Ef的表面的图像 基于检测来自OCT单元150的干涉光LC的结果。控制部210将检测由眼底相机单元1A照明的光的眼底反射光的检测时间与检测来自OCT单元150的干涉光LC的定时同步。 校正处理部240基于从眼底照射的光的眼底反射光的检测结果,基于二维图像,基于从OCT单元150检测干涉光LC的结果来校正断层图像的图像位置 相机单元1A。 图像处理部230基于图像位置被校正的断层图像来形成眼底Ef的三维图像。

    Fundus Observation Device, An Ophthalmologic Image Processing Unit, An Ophthalmologic Image Processing Program, And An Ophthalmologic Image Processing Method
    26.
    发明申请
    Fundus Observation Device, An Ophthalmologic Image Processing Unit, An Ophthalmologic Image Processing Program, And An Ophthalmologic Image Processing Method 有权
    眼底观察装置,眼科图像处理单元,眼科图像处理程序和眼科图像处理方法

    公开(公告)号:US20070285619A1

    公开(公告)日:2007-12-13

    申请号:US11760314

    申请日:2007-06-08

    IPC分类号: A61B3/14

    摘要: First image forming part forms a two-dimensional surface image of a fundus oculi of an eye based on optically obtained data. Second image forming part forms tomographic images of fundus oculi based on data obtained by optically scanning a region of the surface of fundus oculi corresponding to at least part of two-dimensional image. Accumulated image generating part generates an accumulated image by accumulating the formed tomographic images in a depth-wise direction. Extracting part extracts first vascular territory corresponding to a fundus oculi vessel from two-dimensional image formed by first image forming part, and also extracts second vascular territory corresponding to a fundus oculi vessel from accumulated image generated by accumulated image generating part. Specification part specifies a position of a vascular cross sectional region corresponding to a cross section of a fundus oculi vessel in the tomographic image based on extracted first vascular territory and extracted second vascular territory.

    摘要翻译: 第一图像形成部件基于光学获得的数据形成眼睛的眼底的二维表面图像。 第二图像形成部分基于通过光学扫描与至少部分二维图像相对应的眼底表面的区域获得的数据来形成眼底的断层图像。 累积图像生成部通过在深度方向累积形成的断层图像来生成累积图像。 提取部分从由第一图像形成部分形成的二维图像中提取对应于眼底容器的第一血管区域,并且从累积图像生成部分生成的累积图像中提取与眼底容器对应的第二血管区域。 规格部分基于提取的第一血管区域和提取的第二血管区域来指定与断层图像中的眼底血管的横截面对应的血管横截面区域的位置。

    Optical image measurement device and program for controlling the same
    27.
    发明授权
    Optical image measurement device and program for controlling the same 有权
    光学图像测量装置及其控制程序

    公开(公告)号:US08192024B2

    公开(公告)日:2012-06-05

    申请号:US12450879

    申请日:2008-04-08

    IPC分类号: A61B3/14 A61B3/00 A61B3/10

    摘要: A fundus oculi observation device 1 divides a low-coherence light L0 into a signal light LS and a reference light LR, superimposes the signal light LS propagated through a a fundus oculi Ef and the reference light LR propagated through a reference mirror 174 to generate and detect an interference light LC, and forms an OCT image of the fundus oculi Ef based on the result of the detection. The fundus oculi observation device 1 scans with the signal light LS while changing a scan interval when performing a series of scans with the signal light LS. Thus, it is possible to acquire a highly accurate image at small scan intervals from an attention site, and it is possible to reduce a scanning time by scanning at large intervals in other sites. Accordingly, it is possible to rapidly acquire a highly accurate image of an attention site.

    摘要翻译: 眼底观察装置1将低相干光L0分成信号光LS和参考光LR,叠加通过眼底Ef传播的信号光LS和通过参考反射镜174传播的参考光LR,以产生和检测 干涉光LC,并且基于检测结果形成眼底Ef的OCT图像。 眼底观察装置1在用信号光LS进行一系列扫描的同时改变扫描间隔时用信号光LS进行扫描。 因此,可以从注意部位以小的扫描间隔获取高精度的图像,并且可以通过在其他位置以大的间隔扫描来减少扫描时间。 因此,可以快速获取关注点的高精度图像。

    OPTICAL IMAGE MEASUREMENT DEVICE
    28.
    发明申请
    OPTICAL IMAGE MEASUREMENT DEVICE 有权
    光学图像测量装置

    公开(公告)号:US20100118132A1

    公开(公告)日:2010-05-13

    申请号:US12451621

    申请日:2008-05-15

    IPC分类号: H04N7/18

    摘要: A fundus oculi observation device 1 splits a low-coherence light L0 into a signal light LS and a reference light LR, generates an interference light LC from the signal light LS propagated through an eye E and the reference light LR propagated through a reference mirror 174 to detect the interference light LC and, based on the result of the detection, forms a tomographic image of a fundus oculi Ef. The device 1 includes a scan unit 141 configured to scan with the signal light LS, and an LCD and optical system that present a fixation target. The device 1 acquires an image of the fundus oculi Ef in a state that scan a fixation target is presented while scanning with the signal light LS, and based on the image, determines whether fixation is proper or not.

    摘要翻译: 眼底观察装置1将低相干光L0分解为信号光LS和参考光LR,从通过眼睛E传播的信号光LS和通过参考镜174传播的参考光LR产生干涉光LC 以检测干涉光LC,并且基于检测结果,形成眼底Ef的断层图像。 装置1包括被配置为用信号光LS扫描的扫描单元141以及呈现固定目标的LCD和光学系统。 设备1在用信号光LS扫描的同时,在扫描固定目标的状态下获取眼底Ef的图像,并且基于该图像确定是否适当的固定。

    Optical image measurement device
    29.
    发明授权
    Optical image measurement device 有权
    光学图像测量装置

    公开(公告)号:US08177362B2

    公开(公告)日:2012-05-15

    申请号:US12450881

    申请日:2008-04-08

    IPC分类号: A61B3/14

    摘要: A device is an OCT device that splits a low-coherence light into a signal light and a reference light, detects an interference light obtained by superimposing the signal light propagated through an eye and the reference light propagated through a reference mirror, and forms an image of an fundus oculi. The device has a scan unit that scans the eye with the signal light. When a cross-section position is designated in an fundus oculi image, the device repetitively scans with the signal light along each cross-section position to repeatedly forms tomographic images at each cross-section position, thereby displaying a tomographic motion image at each cross-section position on a display. An operator can observe the tomographic motion image to designate the range and timing for measurement of a tomographic still image.

    摘要翻译: 器件是将低相干光分解为信号光和参考光的OCT器件,检测通过叠加通过眼睛传播的信号光和通过参考反射镜传播的参考光而获得的干涉光,并形成图像 的眼底。 该装置具有用信号灯扫描眼睛的扫描单元。 当在眼底图像中指定横截面位置时,该装置利用沿着每个横截面位置的信号光重复扫描以在每个横截面位置处重复形成断层图像,从而在每个横截面位置处显示断层摄影运动图像, 显示屏上的截面位置。 操作者可以观察层析运动图像来指定断层摄影静止图像的测量的范围和时间。

    Optical image measurement device
    30.
    发明授权
    Optical image measurement device 有权
    光学图像测量装置

    公开(公告)号:US08098278B2

    公开(公告)日:2012-01-17

    申请号:US12451621

    申请日:2008-05-15

    IPC分类号: H04N7/18 H04N9/47 A61B3/14

    摘要: A fundus oculi observation device 1 splits a low-coherence light L0 into a signal light LS and a reference light LR, generates an interference light LC from the signal light LS propagated through an eye E and the reference light LR propagated through a reference mirror 174 to detect the interference light LC and, based on the result of the detection, forms a tomographic image of a fundus oculi Ef. The device 1 includes a scan unit 141 configured to scan with the signal light LS, and an LCD and optical system that present a fixation target. The device 1 acquires an image of the fundus oculi Ef in a state that scan a fixation target is presented while scanning with the signal light LS, and based on the image, determines whether fixation is proper or not.

    摘要翻译: 眼底观察装置1将低相干光L0分解为信号光LS和参考光LR,从通过眼睛E传播的信号光LS和通过参考镜174传播的参考光LR产生干涉光LC 以检测干涉光LC,并且基于检测结果,形成眼底Ef的断层图像。 装置1包括被配置为用信号光LS扫描的扫描单元141以及呈现固定目标的LCD和光学系统。 设备1在用信号光LS扫描的同时,在扫描固定目标的状态下获取眼底Ef的图像,并且基于该图像确定是否适当的固定。