Samsung Electronics Co., Ltd.

Eui-hyeon Hwang

Chan-min Park

Jung-bae Kim

Jong-ha Lee

Jung-Bae Kim

A photographing method, medium, and apparatus based on face detection in a portable camera. The portable photographing apparatus may include an image input unit that receives an image, a face detection unit that detects a face from the received image, a storage unit that stores the image detected by the face detection unit as a moving image in a first mode, and a quality evaluation unit that evaluates the quality of the image detected by the face detection unit and stores the same as a still image in a second mode upon satisfaction of predetermined conditions evaluated based on the quality evaluation of the still image.

Apparatus, medium, and method for photographing based on face detection

A user authentication method includes varying a threshold value for human body recognition depending on the extent to which an input graphical password matches with a registered graphical password and determining whether to authenticate a user or not based on a result of comparing the user's human body recognition information with registered human body recognition information. Thus, it is possible to improve convenience, reliability, and security of user authentication based on a graphical password in a device, such as a PDA or other portable electronic device, not having a key manipulation unit. In addition, a biometrics unit that used to provide authentication functions and to carry out user authentication may be improved by lowering both FAR and FRR by variably setting a threshold value for biometrics depending on the result of user authentication using a graphical password.

User authentication method and apparatus

A user authentication method and apparatus including determining whether a password has been input; setting a first threshold value if the input password matches with a registered password and setting a second threshold value if the input password does not match with the registered password; and determining whether to authenticate the user or not based on a comparison of the user's biometrics information with registered biometrics information and the first or second threshold value.

A method and an apparatus for generating textures for a three-dimensional (3D) facial model are provided. The method for generating textures for a 3D facial model provides extracting texture coordinate from a magnification result of a predetermined central facial portion by a predetermined rate and a reduction result of peripheral portion by the predetermined rate, by substituting transformed model coordinate generated by transforming a standard model for a frontal image and at least one side face image of a face into a conversion function in order to convert the transformed model coordinate into pixel coordinate; and interpolating the frontal and side face image, which is received from a user in response to the analysis result of the transformed model coordinate, by using the texture coordinate in the unit of polygon, which is decided by the pixel coordinate, to determine the interpolation result as transformed texture, in which the central facial portion is a region established by a user with centering upon the eyes of the face and the peripheral portion is a region corresponding to the region except for the central facial portion of the face.

Growing community of inventors

Goyang-si, South Korea

Eui-hyeon Hwang