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    • 5. 发明申请
    • LUMINAL BACKGROUND CLEANING
    • 白色背景清洁
    • US20140140597A1
    • 2014-05-22
    • US14128243
    • 2012-06-21
    • Zohar BarzelayRan CohenDavid Tolkowsky
    • Zohar BarzelayRan CohenDavid Tolkowsky
    • G06T5/00
    • G06T5/001A61B6/481A61B6/504A61B6/52A61B6/5235A61B6/5258G06T5/009G06T5/50G06T2207/10116G06T2207/20212G06T2207/30101
    • Apparatus and methods are described for use with an input angiogram image of a device inserted inside a portion of subject's body, the angiogram image being acquired in the presence of contrast agent. At least one processor (11) includes background-image-generation functionality (13) configured to generate a background image in which a relative value is assigned to a first pixel with respect to a second pixel, at least partially based upon relative values of surroundings of the first pixel and the surroundings of the second pixel in the input image. Cleaned-image-generation functionality (14) generates a cleaned image in which visibility of the radiopaque portions of the device is increased relative to the input image, by dividing the input image by the background image. Output-generation functionality (15) drives a display (16) to display an output based upon the cleaned image. Other applications are also described.
    • 描述了与插入受试者身体的一部分内的装置的输入血管造影图像一起使用的装置和方法,在存在造影剂的情况下获取血管造影图像。 至少一个处理器(11)包括背景图像生成功能(13),其被配置为生成背景图像,其中相对于第二像素将相对值分配给第一像素,至少部分地基于周围环境的相对值 的第一像素和第二像素的周围。 清洁图像生成功能(14)通过将输入图像除以背景图像来生成其中相对于输入图像增加设备的不透射线部分的可视性的清洁图像。 输出产生功能(15)驱动显示器(16)以基于清洁的图像显示输出。 还描述了其它应用。
    • 9. 发明授权
    • Endoscopic tutorial system for urology
    • 泌尿外科教学系统
    • US06939138B2
    • 2005-09-06
    • US10239881
    • 2001-04-05
    • Edna ChosackDavid BarkayRan BronsteinRan Cohen
    • Edna ChosackDavid BarkayRan BronsteinRan Cohen
    • G06T15/00G09B23/28
    • G06T15/00G09B23/285
    • A method and a system for simulating the minimally invasive medical procedure of urological endoscopy. The system is designed to simulate the actual medical procedure of urological endoscopy as closely as possible by providing botha simulated medical instrument, and tactile and visual feedback as the simulated procedure is performed on the simulated patient. Particularly preferred features include a multi-path solution for virtual navigation in a complex anatomy, the simulation of the effect of the beating heart on the urethra as it crosses the illiac vessel, and the simulated operation of a guidewire within the urethra In addition, the system and method optionally and more preferably incorporate the effect of dynamic contrast injection of dye into the urethra for fluoroscopy. The injection of such dye, and the subsequent visualization of the urological organ system in the presence of the endoscope, must be accurately simulated in terms of accurate visual feedback. Thus, the system and method provide a complete solution to the complex and difficult problem of training students in urological endoscopy procedures.
    • 一种用于模拟泌尿内镜微创医学程序的方法和系统。 该系统旨在通过提供模拟医疗仪器,以及对仿真患者进行模拟程序的触觉和视觉反馈,尽可能接近地模拟泌尿内窥镜的实际医疗程序。 特别优选的特征包括用于复杂解剖结构中的虚拟导航的多路解决方案,模拟在穿过肛门血管的情况下跳动心脏对尿道的影响,以及尿道内导丝的模拟操作。此外, 系统和方法可选地并且更优选地将染料的动态对比度注入到用于荧光透视的尿道中的效果。 在内窥镜存在的情况下,注射这种染料以及随后的泌尿器官系统的可视化,必须根据准确的视觉反馈精确地模拟。 因此,系统和方法为泌尿内窥镜检查程序中培养学生的复杂难题提供了一个完整的解决方案。