Abstract: A method for accessing a service system includes: receiving fingerprint information of a to-be-verified terminal device and identification information of a to-be-verified user from a login computer system based on a service access instruction to access the service server; verifying, according to the fingerprint information of the to-be-verified terminal device and the identification information of the to-be-verified user, whether the to-be-verified terminal device is a specified device of the to-be-verified user based on a specified device database, the specified device database comprising identification information of each user and fingerprint information of a specified device of each user; determining, according to a result of the verifying, whether to allow the login computer system to access the service server according to the service access instruction; and if yes, sending a notification to the login computer system to enable the login computer system to access the service server.

Abstract: This disclosure is directed to a method and apparatus for displaying an expression in a virtual scene. The method includes: displaying a virtual scene; displaying an expression selection region at a first target position in the virtual scene in response to a drag operation on an expression addition icon; and displaying the first target expression in the virtual scene in response to a selection operation on a first target expression in a plurality of first candidate expressions.

Abstract: Devices and methods for obtaining external shapes and internal tissue geometries, as well as tissue behaviors, of a biological body segment are provided. A device for three-dimensional imaging of a biological body segment includes a structure configured to receive the biological body segment, the structure including a first array of imaging devices disposed about a perimeter of the device to capture side images of the biological body segment and a second array of imaging devices disposed at an end of the device to capture images of a distal portion of the biological body segment. The second array has a generally axial viewing angle relative to the perimeter. A controller is configured to generate a three-dimensional reconstruction of the biological body segment based on cross-correlation of captured images from the first and second arrays.

Abstract: A method for accessing a service system includes: receiving fingerprint information of a to-be-verified terminal device and identification information of a to-be-verified user from a login computer system based on a service access instruction to access the service server; verifying, according to the fingerprint information of the to-be-verified terminal device and the identification information of the to-be-verified user, whether the to-be-verified terminal device is a specified device of the to-be-verified user based on a specified device database, the specified device database comprising identification information of each user and fingerprint information of a specified device of each user; determining, according to a result of the verifying, whether to allow the login computer system to access the service server according to the service access instruction; and if yes, sending a notification to the login computer system to enable the login computer system to access the service server.