Abstract: Disclosed herein are a decoding method and apparatus and an encoding method and apparatus for deriving an intra-prediction mode. An intra-prediction mode may be derived using a method for deriving an intra-prediction mode based on a neighbor block of the target block, a method for deriving an intra-prediction mode using signaling of the intra-prediction mode of the target block, or a method for deriving an adaptive intra-prediction mode based on the type of a target slice. An MPM list may be used to derive the intra-prediction mode, and a temporal neighbor block or the like may be used to configure the MPM list.

Abstract: Disclosed is an apparatus for exploring an optimized treatment pathway of a target patient, which includes an episode sampling module that receives a virtual electronic medical record (EMR) episode, calculates a similarity between a first current state of the target patient, which corresponds to the received virtual EMR episode, and a second current state of a patient, which corresponds to each of a plurality of EMR episodes, extracts an EMR episode, and outputs a pair of the virtual EMR episode and the extracted EMR episode, a state value evaluation module that predicts an expected value of a reward, a treatment method learning module that predicts an optimized treatment method and optimized timing of treatment and provides an external prediction model with the current state of the target patient and the treatment method, and a virtual episode generation module that generates a new virtual EMR episode.

Abstract: Disclosed herein are an apparatus and a method for selecting a storage location based on data usage. The apparatus for selecting a storage location based on data usage includes memory for storing at least one program, and a processor for executing the program, wherein the program is configured to, when an instruction for predetermined data is input through a user interface, determine one of multiple storage devices based on a result of analysis of usage of the predetermined data, and perform a process corresponding to the instruction by writing the predetermined data to the determined storage device or by reading the predetermined data from the determined storage device, and, wherein the multiple storage devices comprise at least two of multiple different types of permanent storage devices and multiple different types of volatile storage devices.

Abstract: The present invention relates to image processing, and more particularly, to a video coding/decoding method using a clipped motion vector and an apparatus thereof. An embodiment of the present invention relates to a method of decoding an image. The method includes clipping a motion vector of a reference picture in a predetermined dynamic range to generate a clipped motion vector, storing the clipped motion vector in a buffer, deriving a motion vector of a coding treeblock using the motion vector stored in the buffer, and performing inter prediction decoding process using the motion vector of the coding treeblock. According to the exemplary embodiment of the present invention, a size of a memory required for storing motion vectors may be reduced.

Abstract: Disclosed herein are a Docker image creation apparatus and method. The Docker image creation apparatus may include one or more processors, and execution memory for storing at least one program that is executed by the one or more processors, wherein the at least one program is configured to create a Docker image based on a previous Docker file, and executing a push command to store the created the Docker file to a registry, wherein the Docker file is created from a partial Docker file of the previous Docker file, wherein the Docker image is created from a verified partial Docker file, after the partial Docker file is verified.

Abstract: An operation method of a first terminal may comprise: configuring a Uu access link with a base station, and receiving a first message from the base station, the first message including a relay RNTI for identifying the first terminal, a node address of the base station, and a RAP entity ID for identifying a RAP entity configured for the first terminal; configuring a relay link with a second terminal when communication with the base station is disconnected; requesting link switching by transmitting to the base station a second message via the second terminal, the second message including the relay RNTI, node address, and RAP entity ID; and receiving a response to the second message from the base station via the second terminal, and switching a link with the base station from the Uu access link to the relay link.

Abstract: A method for managing links, performed by a first communication node in a communication system, includes: obtaining, through an interface, communication status information including communication quality information for each link between the first communication node and at least one other communication node of the communication system; obtaining communication environment information including movement information and location information of each of the at least one other communication node; and obtaining a link probability computational model outputting a first link probability according to input of the communication status information by iteratively performing a machine learning operation based on the communication status information and the communication environment information, wherein the first link probability is used by the first communication node to control multi-connectivity with the at least one other communication node.

Abstract: Disclosed herein a method for configuration of semi-managed DHT based on NDN and system therefor. The method includes: managing and sharing manager nodes based on global information; generating a sub-range segment by partitioning a keyspace area, according to each group of the data peer nodes; managing the sub-range segment by distributing the sub-range segment corresponding to each group to data peer nodes of the each group; checking and analyzing liveness of the data peer node in the each group; estimating availability of the data peer nodes by predicting lifetime of data peer nodes through the checking and analyzing of liveliness; performing risk factor prediction that estimates data availability and sub-range management overhead; and performing a sub-range management decision at each of the manager nodes based on a result of the risk factor prediction, and performing a global stabilization decision required for global system stabilization.

Abstract: Provided is a method of creating a local database for local optimization of an object detector based on a deep neural network. The method includes performing preprocessing on an image extracted from real-time collected or pre-collected images from an edge device, modeling a static background image based on the image received through the pre-processing unit and calculating a difference image between a current input image and a background model to model a dynamic foreground image, detecting an object image from the image based on a training model, and creating a local database based on the background image, the foreground image synthesized with the background image, and the object image synthesized with the background image.

Abstract: An operation method of a base station in an IFD scheme may comprise receiving position information of each of a plurality of downlink (DL) terminals and a plurality of uplink (UL) terminals; determining a guard zone corresponding to each of the plurality of DL terminals based on the position information of each of the plurality of DL terminals; determining whether at least one UL terminal is located in the guard zone based on the position information of each of the plurality of UL terminals; determining a scheduling priority of each of the plurality of DL terminals according to whether at least one UL terminal is located in the guard zone; generating DL control information including frequency-time resource allocation information and interference control information based on the determined scheduling priority; and transmitting data signals and the DL control information to the plurality of DL terminals.

Abstract: The present disclosure provides a communication device which is suitable for use in an unmanned aerial vehicle operating in an unmanned aerial vehicle collaboration system including multiple unmanned aerial vehicles and enables both a data communication with another unmanned aerial vehicle and a measurement of a distance to another unmanned aerial vehicle. According to an aspect of an exemplary embodiment, a communication device of an unmanned aerial vehicle includes: an ultra-wideband (UWB) communication circuit configured to perform a UWB communication with other unmanned aerial vehicle; and a UWB communication manager configured to send transmit data to the other unmanned aerial vehicle and receive data sent by the other unmanned aerial vehicle through the UWB communication circuit, and transmit or receive shared data to be shared by unmanned aerial vehicles in a form of being appended to a distance measurement frame.

Abstract: Disclosed herein are a network environment synchronization apparatus and method. The network environment synchronization apparatus includes one or more processors, and execution memory for storing at least one program that is executed by the one or more processors, wherein the at least one program is configured to collect data from a network environment and generate a management structure in which collected data is distributed into preset respective group units, generate data discriminators for respective group units using a preset hash function, determine whether data of the management structure has changed with reference to data newly collected from the network environment based on the data discriminators, and when it is determined whether data of the management structure has changed, update the data of the management structure with the newly collected data.

Abstract: A phase-locked loop circuit includes a voltage controlled oscillator (VCO) that generates a VCO clock in response to a voltage control signal, a divider that divides the VCO clock to output a division clock, a phase-frequency error detector that receives a reference clock and outputs a first error compensation signal, a sampler that receives the reference clock and oversamples the reference clock at a rising edge or a falling edge to output a sampling clock, a window phase error detector that receives the reference clock and outputs a second error compensation signal, a residue phase error detector that outputs a third error compensation signal, an adder that accumulates the first error compensation signal, the second error compensation signal, and the third error compensation signal to output a final error compensation signal, and a loop filter that converts and output the final error compensation signal into the voltage control signal.

Abstract: The present invention relates to an image information decoding method. The decoding method includes receiving a bit stream including a Network Abstraction Layer (NAL) unit that includes information related to encoded image, and parsing a NAL unit header of the NAL unit. The NAL unit header may not include 1 bit flag information that represents whether a picture is a non-reference picture or a reference picture in the entire bit stream during encoding.

Abstract: A transmission device in a satellite IoT system may comprise: a CRC value generator that receives first data and generates and outputs a payload CRC value; a forward error correction encoder that receives second data consisting of the first data and the payload CRC value from the CRC value generator, and performs forward error correction coding on the second data; an interleaver that receives third data consisting of the forward error correction coded first data and the payload CRC value from the forward error correction encoder, and outputs interleaved payload blocks by performing cyclic shifts on the forward error correction coded first data based on offsets; and a frequency hopping unit that receives the interleaved payload blocks from the interleaver, and generates and transmits payload blocks frequency-hopped according to a hopping sequence.

Abstract: A method of a first communication node may comprise: generating a first sequence that is a maximal length sequence having a length of 2n?1 for a positive integer n; generating a second sequence having a relationship of a preferred pair with the first sequence; generating a third sequence having a relationship of a preferred pair with the first sequence and the second sequence; and generating a binary sequence group using the first to third sequences.

Abstract: A transport layer security (TLS)-based authentication method according to the present invention includes: receiving, in a web server, a certificate for TLS authentication issued from a certificate authority on a web server; transmitting a delegated request from the web server to a delegated entity; receiving, in the web server, a public key among a public key-private key pair generated by the delegated entity in response to the delegated request; generating, in the web server, delegated data based on the public key; generating, in the web server, delegated proof data of the same version as the delegated data; storing, in the web server, the delegated proof data in a delegated proof data storage; and transmitting the certificate and delegated data from the web server to the delegated entity.

Abstract: Provided is a method of selecting a two dimension (2D) image for three dimension (3D) reconstruction, the method including: receiving, by an image processing apparatus, 2D images captured at different positions or in different directions; estimating, by the image processing apparatus, a geometric structure of a camera based on feature points detected from the 2D images, and optimizing the geometric structure of the camera using a bundle adjustment (BA) technique; determining, by the image processing apparatus, a priority for each of the 2D images based on a number of tie points used in the BA process; and selecting, by the image processing apparatus, final 2D images to be used for 3D reconstruction based on the priorities of the 2D images.

Abstract: A wireless charging system, a method of removing a foreign object in the wireless charging system, and a computing device performing the method are provided. The wireless charging system includes a transmission coil cover mounted to surround a transmission coil of a transmission device, a reception coil cover mounted to surround a reception coil of a reception device, and a direct current (DC) conducting wire attached to each of the transmission coil cover and the reception coil cover, wherein the wireless charging system may be configured to remove a foreign object attached to the transmission coil cover or the reception coil cover by using a force acting on the DC conducting wire according to a direction of a current flowing in the DC conducting wire and a direction of a magnetic field perpendicular to the direction of the current.

Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.