Abstract: According to an aspect of the present invention, there is provided a people counting apparatus including: a reception unit which receives a video of an area including an entrance captured by a video capture device; a line setting unit which sets an inline at the entrance and sets an outline such that a specific region is formed on a side of the inline; a detection unit which detects moving objects in the video using information differences between frames of the received video and detects human moving objects among the detected moving objects; a tracking unit which tracks the movement of each of the detected moving objects; and a counting unit which determines whether each of the moving objects passed the inline and the outline based on the tracked movement of each of the moving objects and counts the number of people based on the determination result.

Abstract: Disclosed are a system and method for key exchange based on user authentication information. The system for key exchange based on user authentication information includes a client configured to generate ciphertext corresponding to authentication information of a user of the client using a random number for the client and server identification information, and a server configured to decrypt the ciphertext received from the client using a private key for the server corresponding to the server identification information to restore the authentication information, authenticate the client using the restored authentication information, and generate a session key for the server corresponding to the authenticated client.

Abstract: Disclosed are a building control method using a network map and a system for same. From a network map, in which at least one connection path directly connected to a central control point or connected by passing through at least one neighboring control point is attributed with a weight value, a building control server identifies a control point which satisfies a relation level or a weighted value included in control object information, and transmits a control command, when the control object information for selecting the control object control point from the network map transmitted by a user has been received.

Abstract: Provided are an apparatus and method for generating a key. The apparatus includes: an input analyzer configured to identify a plurality of symbols from user identity (ID) information, and to derive at least one permutation from the plurality of symbols; and a key generator configured to obtain a plurality of pre-calculated keys including a plurality of first pre-calculated keys and at least one second pre-calculated key, and to generate, from the plurality of pre-calculated keys, a cryptographic key corresponding to the user ID information, the plurality of first pre-calculated keys respectively corresponding to the plurality of symbols, the at least one second pre-calculated key respectively corresponding to the at least one permutation.

Abstract: There is provided an apparatus and method for active and passive data gathering using a stochastic model in a control network. An active and passive synchronizer performs a first gathering operation in which a data request frame is transmitted via the control network and data on the local devices is gathered and a second gathering operation in which data on the local devices is gathered by reading a communication frame among the local devices, and determines a first gathering operation schedule for each data stored in a cache unit based on an expected delay time estimated using a stochastic model for the second gathering operation process when the first gathering operation is not performed on each data that is gathered through the first gathering operation and the second gathering operation and is stored in the cache unit and waiting is performed until the data is updated through the second gathering operation.

Abstract: A method for managing data, comprising: receiving data about information collected by a sensor, in which at least a part of the data is encrypted; and performing an analysis in a state where both non-encrypted section and encrypted section of the data are not decrypted. Also, a method for managing data encryption, comprising: allowing a sensor or an intermediate network device to encrypt at least a part of data about collected information; allowing the sensor or the intermediate network device to transmit the at least partially encrypted data; allowing a data management apparatus to receive the at least partially encrypted transmitted data; allowing the data management apparatus to store the at least partially encrypted received data; and allowing the data management apparatus to perform an analysis in a state where both non-encrypted section and encrypted section of the at least partially encrypted data are not decrypted.

Abstract: The present invention relates to a system and a method for providing a data analysis service in a cloud environment which does not need to transmit data to an analysis section from a file storage section when providing an analysis service about big data. According to the present invention, it is not needed to specifically move files when analyzing big data, by using the storage section resource in a virtual machine in a cloud environment as storages, and accordingly, the analysis time can be considerably reduced.

Abstract: Provided is a method of extending participants of a multilateral video conference service. The method includes: receiving, by a multipoint conference unit (MCU) gateway connected with an MCU through at least one physical port and connected with a plurality of terminals in a wired or wireless manner, information on a signal level of sound sensed by microphones provided in plurality of terminal devices from plurality of terminal devices, respectively, selecting, by MCU gateway, one terminal device among plurality of terminal devices as a speaking terminal device based on the received signal level, requesting, by MCU gateway, speaking terminal device to transmit speaking contents input into speaking terminal device and transmitting, by the MCU gateway, speaking contents received from speaking terminal device in response to transmission request to the MCU through at least one physical port.

Abstract: The present invention relates to a heterogeneous data cluster generation apparatus and method and a data clustering method and apparatus, and more particularly, to a data clustering method and apparatus which cluster data measured by different sensors into a number of groups. Aspects of the present invention provide an apparatus and method for generating clusters by putting together heterogeneous data which are values measured by different types of sensors. Aspects of the present invention also provide an apparatus and method for generating clusters by setting indices in order to effectively cluster multi-dimensional data, massive data, or scattered data.

Abstract: Disclosed are an apparatus and method for modeling a three-dimensional (3D) shape. The apparatus for modeling a 3D shape includes a stacker configured to generate a skinned 3D model by forming an empty space inside a target 3D model and stack a plurality of 3D unit objects in the empty space; an influence calculator configured to calculate an influence of a change in a characteristic value of each of the plurality of 3D unit objects on mechanical properties of the target 3D model; a grouper configured to group the plurality of 3D unit objects into a plurality of groups according to the calculated influence; and a characteristic value calculator configured to determine an optimal characteristic value of the 3D unit object for each of the plurality of groups.

Abstract: Disclosed are an apparatus and method of generating a bitmap of a 3D model. The apparatus for generating a bitmap of a 3D model includes a pixel column generator configured to divide a 3D space into a plurality of pixel columns parallel to an output direction of a 3D printer, an intersection point calculator configured to calculate intersection points between the plurality of pixel columns and the 3D model, a rasterizer configured to rasterize the pixel columns and determine a support material region in each of the rasterized pixel columns based on the intersection points; and a bitmap generator configured to generate the bitmap of the 3D model by merging the rasterized pixel columns.

Abstract: Methods for managing performance of a database. A method includes selecting an object table predicted to be required to perform a table reorganization (Reorg) after the current timing, using performance-related information of database collected for a predetermined time period or more, generating a predictive model for predicting the timing at which there is a need to perform the reorganization (Reorg) of the object table, and predicting the timing at which there is a need to perform the reorganization of the object table, using the predictive mode.

Abstract: Provided is an apparatus for executing an update, which executes an update of a specific application installed in a device, the apparatus including: a predetermined value receiving unit configured to receive information on a randomly selected value among values within a predetermined range from an update providing server; an open date receiving unit configured to receive information on an update open time from the update providing server; an update time calculating unit configured to calculate an update time of the specific application by using the received information on the randomly selected value and on the update open time; an update information receiving unit configured to receive update information about the specific application after the calculated update time; and an update executing unit configured to execute an update of the specific application by using the received update information.

Abstract: According to an aspect of the present invention, there is provided a method of detecting a repetitive pattern. The method includes: clustering a plurality of pixels that form an input image according to color and obtaining one or more color layers composed of pixels included in each cluster; selecting one or more effective layers from the color layers, wherein each of the effective layers includes a predetermined number or more of pixel components, each composed of a plurality of pixels and having a predetermined shape or a predetermined size of area; selecting a unit pattern repeatedly disposed at different locations in each effective layer from the pixel components included in each effective layer; calculating distances between the unit patterns in each effective layer; and calculating a repetition cycle of the unit pattern of the input image based on the calculated distances in each effective layer.

Abstract: A mortise structure of a digital door lock is applicable to a left handed door and a right handed door. The mortise structure is an improved two-way releasable mortise structure which can unlock a latch bolt and a dead bolt by finally converting a rotary force of actuating means into a one-way rotary force even though the actuating means is rotated in an arbitrary direction.

Abstract: The present invention relates to a demand priority determination device and method, a recording medium having a program therefor recorded thereon, and a demand control device and method, capable of minimizing the impact of a change in the demand of a particular organization on the quantity planned to be supplied to another organization.

Abstract: Provided is a data processing method which can increase data processing speed without adding a new node to a distributed system. The data processing method may include: calculating a conversion number of cores corresponding to a number of processing blocks included in a graphics processing unit (GPU) of a node of a distributed system; calculating a adding up number of cores by adding up a number of cores included in a central processing unit (CPU) of the node of the distributed system and the conversion number of cores; splitting job data allocated to the node of the distributed system into a number of job units data equal to the adding up number of cores; and allocating a number of job units data equal to the number of cores included in the CPU to the CPU of the node of the distributed system and a number of job units data equal to the conversion number of cores to the GPU of the node of the distributed system.

Abstract: Priority-based demand control device and method, priority determination device and method, and a recording medium recorded with a program thereof are provided, which can assign priorities to confirmed demands that form basic information for establishing supply plans and can control the demands using the assigned priorities. The priority determination device may include a demand information input unit receiving an input of confirmed demand information that includes information on preset items including an item related to a demand request time from respective low-level sales organizations, an item rank determination unit determining rank values for the preset items using the received confirmed demand information, and a comprehensive rank value determination unit determining a comprehensive priority value through arrangement of the rank values for the respective preset items that are determined by the item rank determination unit in accordance with a preset rule.

Abstract: According to an aspect of the present invention, there is provided a method of detecting a repetitive pattern. The method includes: clustering a plurality of pixels that form an input image according to color and obtaining one or more color layers composed of pixels included in each cluster; selecting one or more effective layers from the color layers, wherein each of the effective layers includes a predetermined number or more of pixel components, each composed of a plurality of pixels and having a predetermined shape or a predetermined size of area; selecting a unit pattern repeatedly disposed at different locations in each effective layer from the pixel components included in each effective layer; calculating distances between the unit patterns in each effective layer; and calculating a repetition cycle of the unit pattern of the input image based on the calculated distances in each effective layer.

Abstract: System and method for matching a pattern are provided. The pattern matching method includes performing a sub pattern matching operation to match at least one sub data of a plurality of sub data of a target data with a pre-stored pattern data, and performing a full pattern matching operation to determine whether the target data is identical to at least the pre-stored pattern data by referring to a result of the sub pattern matching operation, and wherein the full pattern matching operation is performed or not performed according to a type of the pre-stored pattern data. Accordingly, an accurate matching operation is performed with respect to the target data of various patterns.