Abstract: A device for decoding a feature map according to the present disclosure comprises an image decoding unit to decode an image from a bitstream; an inverse format conversion unit to restore a feature map latent representation by converting a formation of a decoded image; and a feature map restoration unit to restore a multi-layer feature map from the feature map latent representation. Here, the feature map restoration unit restores the multi-layer feature map based on a learned neural network parameter.

Abstract: The present invention relates to a method for encoding and decoding an image. For this, a method for decoding an image may include: entropy-decoding a bitstream; determining a scanning unit and a scanning order of the transform coefficients of the current block; scanning and aligning the transform coefficients of the current block based on the determined scanning unit and scanning order; and performing inverse-transform for the aligned transform coefficients.

Abstract: Disclosed herein are a hybrid download method and apparatus for multiview streaming. The hybrid download method includes requesting a group download for an n?1-th segment from a server, playing an n?3-th segment at a viewpoint VP1 of a viewer, when a group download request for the n?1-th segment is completed, making a group download request for an n-th segment, when a change in a viewpoint of the viewer occurs at a time at which an n?2-th segment is played, playing a low-quality n?2-th segment at a viewpoint VP3, when the group download for the n-th segment is completed, requesting a single download for a high-quality n?1-th segment corresponding to the viewpoint VP3 from the server, and when the single download for the high-quality n?1-th segment corresponding to the viewpoint VP3 is completed, playing the high-quality n?1-th segment at the viewpoint VP3.

Abstract: A method and apparatus for configuring mesh peer link and a method and apparatus for switching channel in wireless mesh network are provided. A method of configuring a mesh peer link in a wireless mesh network includes a first mesh station transmitting a mesh peering open frame to a second mesh station, and the first mesh station receiving a mesh peering confirm frame from the second mesh station in response to the mesh peering open frame, wherein the first mesh station and the second mesh station support a very high throughput (VHT), and wherein the mesh peering open frame and the mesh peering confirm frame comprise a VHT capability information element.

Abstract: A method of searching a cell in a mobile station of a communication system in which a plurality of cells are grouped into a plurality of cell groups, each cell group including at least two cells, includes: detecting a primary synchronization signal and a secondary synchronization signal from a received signal; and identifying a cell based on a combination of the primary synchronization signal and the secondary synchronization signal. The secondary synchronization signal is related to the cell group to which the mobile station belongs and the primary synchronization signal is related to the cell to which the mobile station belongs within the cell group.

Abstract: The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise acquiring transform coefficients distribution information of a neighboring block from a bitstream; direction-adaptively determining an intra prediction mode of a current block to be decoded, according to the transform coefficients distribution information of the neighboring block; and reconstructing the current block, based on the determined intra prediction mode, wherein the direction-adaptively determining includes determining similarity flag information corresponding to the neighboring block, based on the transform coefficients distribution information of the neighboring block.

Abstract: A technology enabling a terminal to receive acknowledgement (ACK)/negative ACK (NACK) information about data transmitted from the terminal is provided. The method includes receiving cyclic shift information for a reference signal from the base station; transmitting, to the base station, the data and a reference signal which is cyclic-shifted using a cyclic shift value, the cyclic shift value being determined based on a dynamic cyclic shift value mapped one-to-one to the cyclic shift information for the reference signal; and receiving, from the base station, the ACK/NACK information about the transmitted data through a radio resource of a downlink channel, the radio resource of the downlink channel being identified based on a modifier mapped one-to-one to the cyclic shift information for the reference signal.

Abstract: The present invention provides a system and method for high-precision fire simulation-based virtual fire training interaction that features a fire suppression support virtual fire training interaction that combines a scientific fire simulation (FDS) result expression technology used for fire situation analysis and a real-time interaction technology processing dynamic changes in order to have more realistic training in virtual fire training such as fire suppression.

Abstract: Provided is an apparatus for diagnosing a disease, which includes an acquisition module configured to acquire multi-modal data including at least two types of data among text data, speech data, and image data related to each depression patient, a preprocessing module configured to visualize data that is not the image data among the multi-modal data and output image datasets including the image data among the multi-modal data and the visualized data, and a classification module configured to classify whether each depression patient has depression based on the image datasets.

Abstract: Provided is a communication method by which a transmitting device and a receiving device communicate through a request channel and a reply channel, the communication method including: outputting, by the transmitting device, a burden signal including data to the receiving device through the request channel; storing, by the receiving device, the data; providing, by the transmitting signal, a reply request signal indicating whether a reply is required; and performing, by the receiving device, a reply to the stored data through the reply channel according to the reply request signal.

Abstract: The present invention relates to an image encoding method and an image decoding method. The image decoding method includes partitioning a picture into a plurality of coding units, constructing a coding unit group including at least one coding unit of the plurality of coding units, obtaining coding information in units of one coding unit group, and decoding at least one coding unit of the plurality of coding units included in the coding unit group by using the obtained coding information.

Abstract: A microlens array for obtaining a multi-focus plenoptic image includes a first individual microlens array where first microlenses having one focus distance are arranged on a first substrate, a second individual microlens array where second microlenses having the same or different focus distances are arranged on a second substrate, the second individual microlens array being stacked on the first individual microlens array having the same or different focus distances, and a third individual microlens array where third microlenses having the same or different focus distances are arranged on a third substrate, the third individual microlens array being stacked on the second individual microlens array. As seen in a plane, an array form of the first to third microlenses are configured with two microlenses, which are spaced apart from each other by an interval corresponding to one microlens in a vertical axis and a horizontal axis, on one of the first to third substrates.

Abstract: Disclosed herein to a method and apparatus for synchronizing signals. According to an embodiment of the present disclosure, there is provided a method for synchronizing a signal. The method comprising: receiving a reference time and performing time synchronization with the reference time; calculating a clock frequency of a system clock based on the reference time; and generating a sampling clock by using the calculated clock frequency of the system clock and a preset sampling frequency.

Abstract: There is provided a method of decoding an image, the method comprising: decoding information for motion information prediction of a current block from a bitstream, predicting motion information of the current block based on the information, refining motion information of the current block by using the decoded information and the predicted motion information of the current block and reconstructing the current block based on the refined motion information of the current block.

Abstract: Disclosed herein is a method of decoding an image including determining whether a current block is in a bi-directional optical flow (BIO) mode, calculating gradient information of prediction samples of the current block when the current block is in the BIO mode, and generating a prediction block of the current block using the calculated gradient information, wherein the calculating of the gradient information of the prediction samples of the current block includes calculating the gradient information using at least one neighbor sample adjacent to the prediction samples.

Abstract: Disclosed herein is a method for transmitting, by a terminal, a sounding reference signal (SRS). The terminal receives a grant for uplink multiple subframes from a base station. The terminal determines a first subframe for an SRS transmission of the terminal among the uplink multiple subframes on the basis of SRS transmission position information received from the base station. Further, the terminal transmits the SRS in the first subframe.

Abstract: The present invention relates to an apparatus and method for managing data based on hyper ontology. The apparatus for managing data based on hyper ontology includes a data input module for receiving data manually input by a person and data automatically generated by a machine device, and a processor that matches a data entity in a specific technical field or specific domain with a data entity in another technical field or another domain on the basis of hyper ontology associated with a vocabulary and dictionary pre-stored in a storage module.

Abstract: Disclosed herein are a compiler-based deep learning model pruning apparatus and method. The compiler-based deep learning model pruning method includes extracting multiple subgraphs from a first deep learning model, generating programs representing respective tasks allocated to the extracted multiple subgraphs, compiling the first deep learning model based on selected programs and measuring execution times of tasks of the first deep learning model on respective devices, and creating a second deep learning model by pruning a subgraph corresponding to at least one task selected from among the tasks from the first deep learning model based on the execution times on the respective devices.

Abstract: An image encoding method according to the present disclosure may include performing a low gradational conversion for an original depth image of a first bit depth to generate a first depth image of a second bit depth; and encoding the first depth image through a color image of a third bit depth. In this case, the third bit depth may be smaller than the second bit depth.

Abstract: Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.