Method for testing retinal implant
    115.
    发明申请

    公开(公告)号:US20180143071A1

    公开(公告)日:2018-05-24

    申请号:US15815330

    申请日:2017-11-16

    Abstract: The present invention relates to a method for testing a retinal implant. After an implantable device for interfacing with retinal cells is provided, an external stimulus is applied to the implantable device so that the implantable device transmits a first pulse to a processing device through a wireless interface. When a conversion unit is controlled to gradually decrease an output voltage until the implantable device outputs an output voltage lower than a reference voltage, the implantable device transmits a signal different from the first pulse to the processing device through the wireless interface. The processing device determines a current value of a pixel unit according to a time difference between the first pulse and the signal.

    Geometric calibration of a remote sensor

    公开(公告)号:US09823116B2

    公开(公告)日:2017-11-21

    申请号:US13593302

    申请日:2012-08-23

    Abstract: Geometric calibration of an imaging system is performed by recording visible control points in a calibration image whose geometric properties are known and calibration coefficients can be derived utilizing an image processing system for transforming the recorded image into a geometric distortion-free image. Described are methods and systems for vicarious geometric calibration of a remote sensor that include a processor configured to receive image data collected at a remote sensor, the image data including a plurality of image elements each associated with a respective reflective mirror from a plurality of reflective mirrors located at respective know positions, determine, for each of the plurality of reflective mirrors, an image location in the image data and determine one or more figures of merit based on the image locations and the known positions for each of the plurality of reflective mirrors.

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