Abstract: Apparatuses and methods configured to encode and decode multi-layer video are provided. A method of prediction-decoding a multi-layer video includes obtaining information indicating whether a decoded picture buffer (DPB) storing a first layer and a DPB storing a second layer operate identically, and operating the DPB storing the second layer based on the obtained information.

Abstract: An inter-view video decoding method may include determining a disparity vector of a current second-view depth block by using a specific sample value selected within a sample value range determined based on a preset bit-depth, detecting a first-view depth block corresponding to the current second-view depth block by using the disparity vector, and reconstructing the current second-view depth block by generating a prediction block of the current second-view depth block based on coding information of the first-view depth block.

Abstract: The disclosure relates to a method of controlling an electronic device, the method includes, based on a magnetic field generated by a source, obtaining a coordinate of a user's hand; and reflecting the obtained coordinate of the user's hand in a virtual reality environment based on a change of a location of the source due to a movement of the user.

Abstract: An interlayer video decoding method comprises reconstructing a first layer image based on encoding information acquired from a first layer bitstream; reconstructing a second layer current block determined as a predetermined partition mode and a prediction mode by using interlayer prediction information acquired from a second layer bitstream and a first layer reference block corresponding to a current block of a first layer reconstruction image that is to be reconstructed in a second layer; determining whether to perform luminance compensation on the second layer current block in a partition mode in which the second layer current block is not split; and compensating for luminance of the second layer current block according to whether luminance compensation is performed and reconstructing a second layer image including the second layer current block of which luminance is compensated for.

Abstract: An interlayer video decoding method includes: selecting a luminance compensation model to be applied to a first layer reference block and determining a luminance compensation parameter for the selected luminance compensation model; and compensating for luminance of the first layer reference block by using the luminance compensation parameter and reconstructing a second layer image comprising a second layer current block. The determining of the luminance compensation parameter comprises determining the luminance compensation parameter based on any one of a color component of the second layer current block, information about a type of a picture comprising the second layer current block, and a prediction mode of the second layer current block.

Abstract: Provided is an impact type vibration actuator including a permanent magnet having a stopper insertion portion; a linear guide surrounding the permanent magnet; a stopper protruding into the linear guide and inserted into the stopper insertion portion; and coils provided on at least one end of the permanent magnet to provide alternately attraction and repulsion to the permanent magnet. According to the present invention, since a permanent magnet is not connected to the vibration mass, it is possible to adjust the vibration frequency in a very wide range by adjusting the frequency of the power source applied to the coil, and to adjust vibration intensity by appropriately selecting current intensity, a stopper interval, an elastic means, and the like. In addition, through this, it is possible to provide much more various haptic feedbacks than the prior art.

Abstract: An inter-layer video decoding method according to an embodiment of the present invention may comprise the steps of: obtaining prediction mode information for a current block of a depth image from a bitstream; creating a prediction block of the current block on the basis of the obtained prediction mode information; predicting an average value for the prediction block by using the pixel values of a designated location of the prediction block; and decoding the depth image by using the average value for the prediction block.

Abstract: An example of the present invention provides a dongle system including a dongle terminal, the dongle terminal comprising: a dongle terminal unit including a dongle data terminal for data communication with an external product, a dongle power terminal for receiving power supply from the external product, and a dongle antenna terminal for connection with an antenna unit which is installed in the external product and is wirelessly connected to an external server and the Internet of things; a dongle data communication processing unit connected with the dongle data terminal so as to process data communication with the external product; a wireless communication processing unit connected with the dongle antenna terminal so as to process wireless communication with the external server, and to receive, from the external server, a first product control signal for providing an Internet of things service to the external product; and a product service software unit having dongle software installed therein, processing the

Abstract: Multilayer video encoding/decoding methods and apparatuses are provided. A multilayer video decoding method includes: obtaining inter-layer prediction allowance information from a bitstream; obtaining single layer use information from the bitstream when the inter-layer prediction allowance information indicates that inter-layer prediction is usable; determining at most only one layer among at least one layer, to which a current picture refers, as a reference layer when the single layer use information indicates that at most one picture is used for inter-layer prediction; and performing inter-layer prediction on the current picture by using a picture belonging to the reference layer.

Abstract: A multi-layer video encoding/decoding method and a multi-layer video encoding/decoding apparatus are provided. In the multi-layer video encoding method, image data is encoded to a multi-layer encoded image, at least one of encoded layers of a target output layer set is determined as an output layer, an index of at least three output layer subsets including at least one output layer from among the encoded layers of the target output layer set are generated based on the determined output layer, and a bitstream including the generated index and the multi-layer encoded image is generated.

Abstract: Provided is an inter-layer video decoding method. The inter-layer video decoding method includes: determining whether a current block is split into two or more regions by using a depth block corresponding to the current block; generating a merge candidate list including at least one merge candidate for the current block, based on a result of the determination; determining motion information of the current block by using motion information of one of the at least one merge candidate included in the merge candidate list; and decoding the current block by using the determined motion information, wherein the generating of the merge candidate list includes determining whether a view synthesis prediction candidate is available as the merge candidate according to the result of the determination.

Abstract: An inter-layer video decoding method is described including reconstructing a color image and a depth image of a first layer based on encoding information about the color image and the depth image of the first layer obtained from a bitstream. When it is determined that a prediction mode of a current block of a second layer image to be decoded is a view synthesized prediction mode based on an image synthesized from the first layer image a determination is made whether to perform luminance compensation on the second layer current block to be reconstructed. Use of the view synthesized prediction mode to reconstruct the second layer current block depends on the luminance compensation determination.

Abstract: Provided is a multi-layer video decoding method for efficiently obtaining, from a bitstream, information indicating a maximum size of a decoded picture buffer (DPB) regarding a layer set including a plurality of layers.

Abstract: Provided is a merge mode for determining, by using motion information of another block, motion information of pictures that construct a multiview video. A multiview video decoding method includes obtaining motion inheritance information specifying whether or not motion information of a corresponding block of a first layer which corresponds to a current block of a second layer is available as motion information of the second layer, obtaining a merge candidate list by selectively including the motion information of the corresponding block in merge candidates when the current block that was encoded according to the merge mode is decoded, determining a merge candidate included in the merge candidate list according to merge candidate index information, and obtaining motion information of the current block, based on the merge candidate.

Abstract: Provided is a method of reconstructing multilayer images including obtaining RAP picture information of a plurality of layers including a base layer and an enhancement layer, independently decoding a RAP picture of the base layer by using RAP picture information, and independently decoding a RAP picture of the enhancement layer by using RAP picture information.

Abstract: Disclosed is a depth map frame decoding method including reconstructing a color frame obtained from a bitstream based on encoding information of the color frame; splitting a largest coding unit of a depth map frame obtained from the bitstream into one or more coding units based on split information of the depth map frame; splitting the one or more coding units into one or more prediction units for prediction decoding; determining whether to split a current prediction unit into at least one partition and decode the current prediction unit by obtaining information indicating whether to split the current prediction unit into the at least one or more partitions from the bitstream; if it is determined that the current prediction unit is to be decoded by being split into the at least one or more partitions, obtaining prediction information of the one or more prediction units from the bitstream and determining whether to decode the current prediction unit by using differential information indicating a difference bet

Abstract: A video decoding method includes determining, from among a first sample and a second sample with different color components, at least one second sample that is used to correct a value of the first sample; determining a filter parameter set based on a band including the value of the first sample, wherein the band is from among a plurality of bands determined by dividing a total range of sample values into signaled intervals or predetermined intervals; and filtering a value of the at least one second sample by using the determined filter parameter set and correcting the value of the first sample by using a value obtained by the filtering, wherein the first sample is any one of a luma sample and a chroma sample, and the second sample is any one of the luma sample and the chroma sample that is not the first sample.

Abstract: A method of generating a parameter set includes obtaining common information inserted into at least two lower parameter sets which belong to the same upper parameter set; determining whether the common information is to be added to at least one among the upper parameter set and the at least two lower parameter sets; and adding the common information to at least one among the upper parameter set and the at least two lower parameter sets, based on a result of the determining.

Abstract: A method of decoding multi-layer video includes decoding a first layer picture, storing the decoded first layer picture in a decoded picture buffer (DPB), and marking the first layer picture as a short-term reference picture; obtaining interlayer reference picture set (RPS) information regarding a second layer picture having a same first picture order count (POC) as the first layer picture; marking the first layer picture, which is marked as the short-term reference picture, as a long-term reference picture, based on the interlayer RPS information; performing interlayer prediction with respect to the second layer picture with reference to the first layer picture; decoding the second layer picture based on a result of performing the interlayer prediction; and, after the second layer picture is decoded, marking the first layer picture, which is marked as the long-term reference picture, as a short-term reference picture.

Abstract: An interlayer video decoding method and apparatus and an interlayer video encoding method and apparatus are provided. The decoding method includes: reconstructing, based on encoding information obtained from a bitstream, a first layer image and a first layer depth map; determining whether a disparity vector is predictable using peripheral blocks of a second layer current block; and when the disparity vector is not predictable using the peripheral blocks, determining a disparity vector of the second layer current block using a default disparity vector and the reconstructed first layer depth map.