Abstract: Provided are control methods of a decryption key storage server, a biometric information storage server, and a matching server in an authentication system.

Abstract: Provided are control methods of a decryption key storage server, a biometric information storage server, and a matching server in an authentication system.

Abstract: A method for a face recognition by a face recognition service server, includes receiving a face image that is photographed from a face registration terminal or a face recognition terminal; detecting a face area of the received face image; and quantifying at least one quality factor for the detected face area in order to determine whether the received face image is suitable as sample image required for face recognition. Further, the method includes selecting the received face image as the sample image required for the face recognition when the quality factor satisfies a predetermined quality criterion.

Abstract: An apparatus for identifying a fake fingerprint, the apparatus comprising: a prism having a fingerprint contact surface with which a fingerprint comes in contacted; an internal light source configured to irradiate light from the inside of the prism; an external light source configured to irradiate light from the outside of the prism; an image sensor configured to acquire diffused light image by the internal light source and transmitted light image by the external light source; and a controller configured to compare the diffused light image and the transmitted light image acquired by the image sensor to determine whether the fingerprint is a fake fingerprint or not.

Abstract: A method for a face recognition by a face recognition service server, includes receiving a face image that is photographed from a face registration terminal or a face recognition terminal; detecting a face area of the received face image; and quantifying at least one quality factor for the detected face area in order to determine whether the received face image is suitable as sample image required for face recognition. Further, the method includes selecting the received face image as the sample image required for the face recognition when the quality factor satisfies a predetermined quality criterion.

Abstract: An apparatus for identifying a fake fingerprint, the apparatus comprising: a prism having a fingerprint contact surface with which a fingerprint comes in contacted; an internal light source configured to irradiate light from the inside of the prism; an external light source configured to irradiate light from the outside of the prism; an image sensor configured to acquire diffused light image by the internal light source and transmitted light image by the external light source; and a controller configured to compare the diffused light image and the transmitted light image acquired by the image sensor to determine whether the fingerprint is a fake fingerprint or not.

Abstract: A video presenting system having outputs for dual images is provided. As a result, the video presenter, which is an optical image electronic device having mounted therein an embedded system dedicated to a device control, can respectively and simultaneously output any two different images to two different display units. These any two different images are from among an externally input image, a live image, and a document/multimedia image. The video presenting system having outputs for dual images includes a first display member; a second display member; a video presenting member generating a live image signal and outputting a dual-display signal after performing signal processing of a live image signal, an externally input image signal, and a document/multimedia image signal; and an embedded member performing periodic communication with the video presenting member, and thus transmitting the externally input image signal and the document/multimedia image signal to the video presenting member.

Abstract: A video presenting system having outputs for dual images is provided. As a result, the video presenter, which is an optical image electronic device having mounted therein an embedded system dedicated to a device control, can respectively and simultaneously output any two different images to two different display units. These any two different images are from among an externally input image, a live image, and a document/multimedia image. The video presenting system having outputs for dual images includes a first display member; a second display member; a video presenting member generating a live image signal and outputting a dual-display signal after performing signal processing of a live image signal, an externally input image signal, and a document/multimedia image signal; and an embedded member performing periodic communication with the video presenting member, and thus transmitting the externally input image signal and the document/multimedia image signal to the video presenting member.

Abstract: A video presentation system is provided for outputting a document and/or multimedia image file as well as a live image on one display unit. The system integrates an embedded system for controlling devices with a video presentation device, which is an optical image electronic device. The video presentation system integrating an embedded operating system (OS) includes: a video presenting unit processing a generated first image or a received second image to generate a signal that can be displayed, and outputting the generated signal, or processing the first image and the second image to generate a signal that can be displayed, by overlaying the images, and transmitting the captured first image or a part of the image; and an embedded unit transmitting the overlay information and the second image to the video presenting unit through periodic communication with the video presenting unit, and receiving the captured first image.

Abstract: Provided is a method of processing video data in which a computer processes video data received from a video presenter, displays a moving picture, and captures a still picture when a still picture capture signal is generated. The method includes: (a) receiving data of an odd frame; (b) processing and displaying the received data of the odd frame and simultaneously receiving data of an even frame next to the odd frame; (c) processing and displaying the received data of the even frame and simultaneously receiving data of an odd frame next to the even frame; and (d) performing the (b) and the (c) repeatedly and alternately.