Abstract: Disclosed herein are a method and apparatus for generating a digital surface model using satellite imagery. The method includes correcting a geometric error in input satellite images, generating one or more depth maps using a stereo matching method based on the corrected satellite images, and generating a digital surface model by combining the generated depth maps and by estimating a height value for each location on the ground surface.

Abstract: Disclosed herein are a method and apparatus for matching 3D terrain information based on aerial images captured at different altitudes.

Abstract: Disclosed herein is an operating method of an apparatus for generating 3D geographic data. The operating method may include receiving multi-view images, generating a 3D mesh and texture for a first distance view from the multi-view images, generating hybrid Digital Surface Model (DSM) data for a second distance view using the 3D mesh and the texture, and generating DSM data for a third distance view using the 3D mesh and the texture.

Abstract: Disclosed herein are a method and apparatus for matching 3D terrain information based on aerial images captured at different altitudes.

Abstract: Disclosed herein are an apparatus and method for reconstructing a 3D model. The apparatus for reconstructing a 3D model includes an image acquisition unit for acquiring multi-view images by receiving image signals captured by multiple drones using cameras, a geometric calibration unit for estimating motion variables of the drones based on the acquired multi-view images, and a 3D model creation unit for reconstructing a 3D model of a dynamic object from the matched multi-view images using a multi-view stereo method.

Abstract: Disclosed herein are an apparatus and method for reconstructing a 3D model. The apparatus for reconstructing a 3D model includes an image acquisition unit for acquiring multi-view images by receiving image signals captured by multiple drones using cameras, a geometric calibration unit for estimating motion variables of the drones based on the acquired multi-view images, and a 3D model creation unit for reconstructing a 3D model of a dynamic object from the matched multi-view images using a multi-view stereo method.

Abstract: A referer verification apparatus and method for controlling web traffic having malicious code are provided. In the referer verification method, whether a referer is present in a Hypertext Transfer Protocol (HTTP) packet is determined. If it is determined that the referer is present in the HTTP packet, Uniform Resource Locators (URLs) are extracted from a referer web page corresponding to the referer. The referer is verified based on a URL corresponding to a referer verification request received from a server and the extracted URLs. A Completely Automated Public Test to tell Computers and Humans Apart (CAPTCHA) verification procedure conducted by a user is performed based on results of the verification of the referer.

Abstract: A computer system includes a system part, a connector to which an external device is connected, a communication unit which performs communication with the external device, and a control unit which is connected between the connector and the communication unit to monitor a state of a predetermined recognition signal applied from the external device when the system part is in a standby mode. The control unit performs a predetermined function corresponding to the monitored state of the recognition signal. When the system part is in the standby mode, the system part may be switched to an operation mode based on the recognition signal from the external device. Additionally, a predetermined charging power is output to an external device in response to the predetermined recognition signal applied from the external device connected to the connector while the system part exists in the standby mode.

Abstract: A system and method for detecting network intrusion by using a network processor are provided. The intrusion detection system includes: a first intrusion detector, configured to use a first network processor to perform intrusion detection on layer 3 and layer 4 of a protocol field among information included in a packet header of a packet transmitted to the intrusion detection system, and when no intrusion is detected, classify the packets according to stream and transmit the classified packets to a second intrusion detector; and a second intrusion detector, configured to use a second network processor to perform intrusion detection through deep packet inspection (DPI) for the packet payload of the packets transmitted from the first intrusion detector. Thereby, intrusion detection for high-speed packets can be performed in a network environment.

Abstract: A host apparatus, a user terminal apparatus, a method of controlling a charger, and a method of communication thereof. The host apparatus includes: a connector which includes a terminal to which the user terminal apparatus is connected; a power supplier which supplies power to the connector; a controller which, if the host apparatus operates in a first operation mode when the user terminal apparatus is connected to the connector through the terminal, charges a battery of the user terminal apparatus with the power supplied from the power supplier; and a charging maintainer which, if the host apparatus operates in a second operation mode, charges the battery with power supplied from the power supplier.

Abstract: Provided are a method and apparatus for combining and composing a plurality of images into one image. An image processing unit calculates importance levels of the plurality of input images, respectively, according to selection criteria, selects at least two important images from among the plurality of input images according to the calculated importance levels, determines Regions Of Interest (ROIs) of the important images, selects the ROIs in one canvas, arranges corresponding important images at positions corresponding to the selected ROIs, and composes the arranged important images into one image.

Abstract: An apparatus and method for controlling traffic based on a Completely Automated Public Turing test to tell Computers and Humans Apart (CAPTCHA) are provided. The traffic control apparatus includes a traffic monitoring unit, a CAPTCHA verification unit, a list management unit, and a traffic control unit. The traffic monitoring unit monitors a packet between an internal network and an external network. The CAPTCHA verification unit, if packet information is not present in an access control list, sends a CAPTCHA request message to a client computer, receives a CAPTCHA response message, and verifies the CAPTCHA response message. The list management unit, if the packet information is present in the access control list, detects an access control policy corresponding to the packet information in the access control list. The traffic control unit controls traffic based the verification of the CAPTCHA response message and the control policy.

Abstract: A communication blocking control method includes receiving a communication blocking request from a terminal in an idle state in which it is difficult to find out whether information is leaked or not; registering a state of the terminal in a communication blocked list according to the communication blocking request; and blocking external communication of the terminal through a network.

Abstract: A referer verification apparatus and method for controlling web traffic having malicious code are provided. In the referer verification method, whether a referer is present in a Hypertext Transfer Protocol (HTTP) packet is determined. If it is determined that the referer is present in the HTTP packet, Uniform Resource Locators (URLs) are extracted from a referer web page corresponding to the referer. The referer is verified based on a URL corresponding to a referer verification request received from a server and the extracted URLs. A Completely Automated Public Test to tell Computers and Humans Apart (CAPTCHA) verification procedure conducted by a user is performed based on results of the verification of the referer.

Abstract: Disclosed are a cleaning robot system and its method for controlling which make it possible to reliably and quickly clean with the aid of the cleaning robot. The cleaning robot system comprises at least one external device each formed of an indicator and a virtual wall setting function, with the aid of which cleaning work can be performed by the unit of blocks about a cleaning area reference point, not leaving non-cleaned area behind. Since the access of the cleaning robot can be restricted by means of a virtual wall set by an external device, any damages of furniture due to a collision of the cleaning robot can be prevented, and the cleaning robot can be barred from escaping from the set cleaning area.

Abstract: A system and method for detecting network intrusion by using a network processor are provided. The intrusion detection system includes: a first intrusion detector, configured to use a first network processor to perform intrusion detection on layer 3 and layer 4 of a protocol field among information included in a packet header of a packet transmitted to the intrusion detection system, and when no intrusion is detected, classify the packets according to stream and transmit the classified packets to a second intrusion detector; and a second intrusion detector, configured to use a second network processor to perform intrusion detection through deep packet inspection (DPI) for the packet payload of the packets transmitted from the first intrusion detector. Thereby, intrusion detection for high-speed packets can be performed in a network environment.

Abstract: A method for high-speed image processing based on graphic processing unit includes processing an input image for the image processing in a texture format of a 32 bit floating point, and performing a predetermined algorithm for the image processing on the input image through at least one or more Framebuffer Object (FOB) and outputting the result as texture data.

Abstract: A memory controller, a PCB and a computer system employing the memory controller, and a memory adjusting method using the memory controller. The memory controller interfaces data reading from and writing to a memory and includes: a characteristic estimating part estimating a characteristic of a memory output signal outputted from the memory for the data reading and writing; and a characteristic adjusting part controlling the memory so that the characteristic of the memory output signal is within a predetermined reference range if the characteristic of the memory output signal estimated by the characteristic estimating part is beyond the predetermined reference range.

Abstract: An apparatus for recognizing and processing information of electronic parts includes a seating unit on which electronic parts are seated and aligned and a part information processing unit disposed adjacent to the seating unit. The part information processing unit is configured to align the electronic parts using the seating unit, recognize a recognition surface of the electronic parts, obtaining part information of the recognized surface, and store the obtained part information.

Abstract: A computer system includes a system part, a connector to which an external device is connected, a communication unit which performs communication with the external device, and a control unit which is connected between the connector and the communication unit to monitor a state of a predetermined recognition signal applied from the external device when the system part is in a standby mode. The control unit performs a predetermined function corresponding to the monitored state of the recognition signal. When the system part is in the standby mode, the system part may be switched to an operation mode based on the recognition signal from the external device. Additionally, a predetermined charging power is output to an external device in response to the predetermined recognition signal applied from the external device connected to the connector while the system part exists in the standby mode.