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    • 3. 发明申请
    • IMAGING A PATIENT'S INTERIOR
    • 成像患者的内部
    • WO2014184274A1
    • 2014-11-20
    • PCT/EP2014/059901
    • 2014-05-15
    • KONINKLIJKE PHILIPS N.V.
    • VENKATESAN, Shankar MosurVAJINEPALLI, PallaviGUPTA, VipinGOVINAHALLISATHYANARAYANA, SushanthKULKARNI, Mandar Shrikant
    • A61B1/06A61B1/04G06T7/00
    • A61B1/00006A61B1/04A61B1/0607A61B1/0661A61B1/303A61B1/3132A61B3/12G06T7/586G06T2207/10021G06T2207/10068G06T2207/10152G06T2207/30004H04N5/2256H04N7/183H04N2005/2255
    • A system (100) is provided for imaging a patient's interior. The system comprises an imaging sensor (120) for acquiring a series of images of a region of interest (020) in the patient's interior, and a plurality of light sources (140) for illuminating the region of interest in the patient's interior from different light source directions (152-156). A light controller (160) is provided for controlling individual ones (142-146) of the plurality of light sources (140) to dynamically vary the light source directions (152-156) during said acquiring. Moreover, a processor (180) is provided for obtaining lighting data (164) indicative of the dynamically varying light source directions. The processor (180) is further arranged for using the lighting data to apply a photometric stereo technique to the image data so as to establish a three-dimensional [3D] surface profile of the region of interest. The processor (180) is further provided to detect insufficiently illuminated areas of the region of interest (020-024) in the images acquired by the imaging sensor (120), using the 3D surface profile of the region of interest. Accordingly, the system is enabled to establish a 3D surface profile of the region of interest from a series of images in a convenient and cost-effective manner.
    • 提供了一种用于对患者内部进行成像的系统(100)。 该系统包括用于获取患者内部的感兴趣区域(020)的一系列图像的成像传感器(120)和用于从不同的光照射患者内部的感兴趣区域的多个光源(140) 来源方向(152-156)。 提供光控制器(160),用于控制多个光源(140)中的单个(142-146)在所述获取期间动态地改变光源方向(152-156)。 此外,提供处理器(180)以获得指示动态变化的光源方向的照明数据(164)。 处理器(180)还被布置为使用照明数据将光度立体声技术应用于图像数据,以便建立感兴趣区域的三维[3D]表面轮廓。 进一步提供处理器(180)以使用感兴趣区域的3D表面轮廓来检测由成像传感器(120)获取的图像中感兴趣区域(020-024)的未充分照明的区域。 因此,该系统能够以便利且具有成本效益的方式从一系列图像建立感兴趣区域的3D表面轮廓。