Abstract: The present disclosure discloses a human-machine interaction method and system based on eye movement tracking. The human-machine interaction method comprises the following steps: acquiring first eye movement information of a user on a current display interface; executing a first operation command on the current display interface based on the first eye movement information; acquiring second eye movement information of the user on the current display interface under the first operation command; executing a second operation command on the current display interface under the first operation command based on the second eye movement information; acquiring third eye movement information of the user on the current display interface under the second operation command; locking or unlocking the second operation command based on the third eye movement information; and repeating the above process until the user finishes human-machine interaction.

Abstract: The present disclosure discloses a human-machine interaction method and system based on eye movement tracking. The human-machine interaction method comprises the following steps: acquiring first eye movement information of a user on a current display interface; executing a first operation command on the current display interface based on the first eye movement information; acquiring second eye movement information of the user on the current display interface under the first operation command; executing a second operation command on the current display interface under the first operation command based on the second eye movement information; acquiring third eye movement information of the user on the current display interface under the second operation command; locking or unlocking the second operation command based on the third eye movement information; and repeating the above process until the user finishes human-machine interaction.

Abstract: Methods and systems are provided for cooling hot spots on a body coil assembly of an MRI system. In one embodiment, an airflow guide of a body coil assembly of an MRI system comprises a first surface that forms an air passage when the airflow guide is positioned on the body coil assembly, the air passage enclosed by the first surface and a second, outer surface of an RF coil of the body coil assembly, the airflow guide configured to channel cool air generated by a fan to the second, outer surface of the RF coil. The airflow guide may be arranged circumferentially around a portion of the RF coil at one or more ends of the RF coil. The airflow guide may be manufactured as a plurality of airflow guide segments that are glued together.

Abstract: A method of identifying a rotation gesture comprises detecting one or more induction signals induced by one or more pointing objects that come into contact with a touch-sensitive surface, determining the number of the pointing object that come into contact with a touch screen, determining a rotation gesture performed by the pointing objects if the number of the pointing object is more than one, generating a control signal associated with the determined rotation gesture and executing a rotation command in response to the generated control signal.