| 摘要 |
<p>A patient positioning system for use with a patient comprises an optical image sensor (18). The optical image sensor measures an optical image of a tissue structure of an eye of the patient. An image sensor support supports (14) the image sensor. A patient support (12) supports the patient. A linkage (16) is coupled to the image sensor support with the patient support. A processor (20) is coupled to the optical image sensor to determine a gradient of an illumination level of the optical tissue structure image. The processor is coupled to the linkage and configured to articulate the linkage so as to adjust a separation distance from the tissue structure to the image sensor in response to the gradient of the optical tissue structure image.</p> |
