Abstract: Provided are a method for supporting ultra-wideband (UWB) communication and apparatuses (e.g., a terminal and a server) implementing the same method. The method according to some embodiments may include sharing, by a first terminal, a key for UWB ranging with a second terminal through a relay server, the first terminal and the second terminal communicating with the relay server through wireless Internet communication; and performing, by the first terminal, the UWB ranging with the second terminal using the shared key.

Abstract: Provided is a method of acquiring an optimized closed curved surface image using multiple cameras, and more particularly, an image providing method that produces a single image using a plurality of cameras fixed to a rig and having different capturing viewpoints, the method including projection operation of acquiring a single image by projecting images acquired from the plurality of cameras on a projection surface of a closed curved surface based on parameter information, rendering operation of fitting the acquired single image in a quadrangular frame for each region through a non-uniform sampling process, and viewing operation of mapping the sampled image to a viewing sphere.

Abstract: An authentication system and method are provided. The authentication method in accordance with one embodiment includes: storing a first authentication request message received from an authentication server, generating a new challenge using a previous challenge used in a previous authentication process when a network connection to the authentication server is not possible, generating a second and newer authentication request message by replacing a challenge included in the first authentication request message with the new challenge, generating an authentication assertion by performing biometric authentication using the second authentication request message and storing the generated authentication assertion.

Abstract: Provided is a method of acquiring an optimized closed curved surface image using multiple cameras, and more particularly, an image providing method that produces a single image using a plurality of cameras fixed to a rig and having different capturing viewpoints, the method including projection operation of acquiring a single image by projecting images acquired from the plurality of cameras on a projection surface of a closed curved surface based on parameter information, rendering operation of fitting the acquired single image in a quadrangular frame for each region through a non-uniform sampling process, and viewing operation of mapping the sampled image to a viewing sphere.

Abstract: Disclosed herein are a method and apparatus for detecting a relative camera position based on a skeleton data, wherein the method may include receiving skeleton information obtained using a plurality of depth cameras; detecting a position relationship between corresponding joints from the received skeleton information; and obtaining a relative position and a rotation information between the depth cameras in such a way to use a position relationship between the detected joints.