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    • 4. 发明申请
    • DOWNLOADABLE FILTERS FOR A VISUAL PROSTHESIS
    • 可视化过滤器可视化前景
    • WO2007035743A2
    • 2007-03-29
    • PCT/US2006036501
    • 2006-09-18
    • SECOND SIGHT MEDICAL PROD INCMCCLURE KELLY HROY ARUPYADAV SUMITMAKSY PISHOYMELISTRUP PETER
    • MCCLURE KELLY HROY ARUPYADAV SUMITMAKSY PISHOYMELISTRUP PETER
    • A61N1/36A61F2/14A61F9/08A61N1/05
    • A61N1/36046A61N1/0543
    • The present invention is a method of neural stimulation and more specifically an improved method of providing flexible video/image possessing in a visual prosthesis by providing downloadable video filters. In a visual prosthesis, the input video image will, for the foreseeable future, be higher resolution than the output stimulation of the retina, optic nerve or visual cortex. This is due to limits of electrode array technology and the rapid advancement of video camera technology. It is therefore, advantageous to apply video processing algorithms (filters) to help provide the most useful information to the lower resolution electrode array. Different filters are more effective in different environments and for different subjects. Furthermore, filters will continue to improve over time. Examples of situation dependent filters include reverse image, contrast increasing, edge detection, segmentation using chromatic information and motion detection. Filters loaded in the video processing unit may be selected dynamically to suit the situation or the user's preference. It is therefore advantageous to provide flexibility in applying filters. However, it is also important to maintain the security necessary for a medical device. The present invention provides for an external (not implanted) video processing unit with downloadable video filters.
    • 本发明是神经刺激的方法,更具体地,提供了一种通过提供可下载的视频滤波器来提供在视觉假体中拥有的灵活视频/图像的改进方法。 在视觉假体中,在可预见的将来,输入视频图像将比视网膜,视神经或视觉皮质的输出刺激更高的分辨率。 这是由于电极阵列技术的局限性和摄像机技术的飞速发展。 因此,应用视频处理算法(滤波器)有助于向较低分辨率电极阵列提供最有用的信息。 不同的过滤器在不同的环境和不同的科目中更有效。 此外,过滤器将随着时间的推移而持续改善。 情况相关滤波器的示例包括反向图像,对比度增加,边缘检测,使用色彩信息和运动检测的分割。 可以动态地选择加载在视频处理单元中的滤波器以适应情况或用户的偏好。 因此,提供应用过滤器的灵活性是有利的。 然而,保持医疗设备所需的安全性也是重要的。 本发明提供具有可下载的视频滤波器的外部(未植入)视频处理单元。