会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • DETERMINING OPTIMAL POSITIONING OF OPHTHALMIC DEVICES BY USE OF IMAGE PROCESSING AND AUTOFOCUSING TECHNIQUES
    • 通过图像处理和自动绘图技术确定眼科装置的最佳定位
    • WO2007079076A3
    • 2007-08-30
    • PCT/US2006049264
    • 2006-12-21
    • ALCON REFRACTIVE HORIZONS INCCAMPIN JOHN ABOWES JOHN J
    • CAMPIN JOHN ABOWES JOHN J
    • A61F9/01A61B3/10
    • A61F9/00802A61B3/0075A61B3/0083A61B3/10A61B3/145A61F2009/00872G06T7/571G06T2207/30041
    • A system (200) or method of positioning an ophthalmic device relative to an eye is provided. The method first obtains a series of images of an eye. In these series of images, the distance between the ophthalmic device and the eye is varied while the region of the eye image remains substantially the same. It is possible then to process these images to determine the high frequency content associated with each image. By comparing the high frequency content associated with each image, it is possible to determine which image has the largest amount of high frequency content. The high frequency content is maximized when the image is the sharpest. An optimally focused image will have the largest amount of high frequency content . By examining the high frequency content associate with the series of images is impossible to adjust the relative position and distance between the eye and the ophthalmic device to the distance associated with the image having the largest amount of high frequency content (i.e., optimally focused) .
    • 提供了一种相对于眼睛定位眼科装置的系统(200)或方法。 该方法首先获得一系列的眼睛图像。 在这些系列图像中,眼睛装置与眼睛之间的距离是变化的,而眼睛图像的区域保持基本相同。 然后可以处理这些图像以确定与每个图像相关联的高频内容。 通过比较与每个图像相关联的高频内容,可以确定哪个图像具有最大量的高频内容。 当图像最清晰时,高频内容最大化。 最佳聚焦图像将具有最大量的高频内容。 通过检查与该系列图像相关联的高频内容不可能将眼睛和眼科装置之间的相对位置和距离调整为与具有最大量的高频内容(即,最佳聚焦)的图像相关联的距离。
    • 4. 发明专利
    • DE602006012373D1
    • 2010-04-01
    • DE602006012373
    • 2006-12-21
    • ALCON REFRACTIVE HORIZONS INC
    • CAMPIN JOHN ABOWES JOHN J
    • A61B3/10A61F9/01
    • A system or method of positioning an ophthalmic device relative to an eye is provided. The method first obtains a series of images of an eye. In these series of images, the distance between the ophthalmic device and the eye is varied while the region of the eye image remains substantially the same. It is possible then to process these images to determine the high frequency content associated with each image. By comparing the high frequency content associated with each image, it is possible to determine which image has the largest amount of high frequency content. The high frequency content is maximized when the image is the sharpest. An optimally focused image will have the largest amount of high frequency content. By examining the high frequency content associate with the series of images is impossible to adjust the relative position and distance between the eye and the ophthalmic device to the distance associated with the image having the largest amount of high frequency content (i.e., optimally focused).
    • 5. 发明专利
    • SISTEMA DE POSICIONAMIENTO DE DISPOSITIVO OFTALMICO Y METODOS ASOCIADOS.
    • ES2373056T3
    • 2012-01-31
    • ES06800383
    • 2006-07-26
    • ALCON REFRACTIVE HORIZONS INC
    • CAMPIN JOHN ABOWES JOHN J
    • A61B3/10
    • Método implementado por ordenador para determinar una posición óptima de mejor enfoque de un ojo con relación a un dispositivo oftálmico, que comprende las etapas siguientes: (a) recibir datos (102) que comprenden una imagen de una superficie de un ojo, con el ojo en una primera posición con relación a un dispositivo oftálmico (11); (b) localizar (103) una característica de borde en la imagen; (c) realizar un cálculo de nitidez (107) en la característica de borde utilizando una función de transformada rápida de Fourier (104) para calcular un valor de nitidez (109), comprendiendo las etapas de filtrar los datos de imagen (108) para retener un contenido espectral de frecuencia baja, media y alta y combinar información de diferentes frecuencias en el contenido espectral de frecuencia baja, media y alta retenido, de modo que éste pueda utilizarse para discriminar entre niveles grandes y pequeños de borrosidad (110), (d) ajustar la superficie del ojo a una segunda posición (112) con relación al dispositivo oftálmico sobre la base del cálculo de nitidez (107) en la característica de borde; y (e) repetir las etapas (a)-(d) hasta que se maximice (111) el valor de nitidez, siendo en cada ciclo posterior la primera posición de la etapa (a) la segunda posición de la etapa (d) del ciclo previo y siendo la segunda posición de la etapa (d) una nueva posición, indicando que se ha conseguido (111) una posición óptima de mejor enfoque del ojo.
    • 6. 发明专利
    • AT523139T
    • 2011-09-15
    • AT06800383
    • 2006-07-26
    • ALCON REFRACTIVE HORIZONS INC
    • CAMPIN JOHN ABOWES JOHN J
    • A61B3/10
    • A system and method for determining an optimal position of an eye relative to an ophthalmic device are disclosed. One embodiment of the method includes receiving data comprising an image of a surface of an eye with the eye at a first position relative to an ophthalmic device. An edge feature in the image is located, and a sharpness calculation on the edge feature is performed using a predetermined algorithm to yield a sharpness value. The eye surface is then adjusted to a second position relative to the ophthalmic device, and the previous steps are repeated until the sharpness value is maximized, which is an indication that an optimal eye position has been achieved. An embodiment of the system includes a processor and a software package executable by the processor, the software package adapted to perform the calculations as above. Means are also provided for adjusting the eye surface to a second position relative to the ophthalmic device.
    • 7. 发明专利
    • BRPI0614619A2
    • 2011-04-12
    • BRPI0614619
    • 2006-07-26
    • ALCON REFRACTIVE HORIZONS INC
    • CAMPIN JOHN ABOWES JOHN J
    • A61B3/10
    • A system and method for determining an optimal position of an eye relative to an ophthalmic device are disclosed. One embodiment of the method includes receiving data comprising an image of a surface of an eye with the eye at a first position relative to an ophthalmic device. An edge feature in the image is located, and a sharpness calculation on the edge feature is performed using a predetermined algorithm to yield a sharpness value. The eye surface is then adjusted to a second position relative to the ophthalmic device, and the previous steps are repeated until the sharpness value is maximized, which is an indication that an optimal eye position has been achieved. An embodiment of the system includes a processor and a software package executable by the processor, the software package adapted to perform the calculations as above. Means are also provided for adjusting the eye surface to a second position relative to the ophthalmic device.