Seoul, South Korea
Seoul, South Korea

Kwangwoon University is a private research university in Seoul , South Korea. Kwangwoon University has been recognized for its academic reputation in engineering and IT fields.Among its alumni are Jongkyun Shin , Jae Ryung Lee and professional golfer Inbee Park. Wikipedia.


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Patent
Electronics, Telecommunications Research Institute and Kwangwoon University | Date: 2017-04-05

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.


Patent
Electronics, Telecommunications Research Institute, Kwangwoon University, Kyung Hee University, Korea Advanced Institute of Science and Technology | Date: 2016-07-26

Provided is a video encoding apparatus, including a signal separator to separate a differential image block into a first domain and a second domain, based on a boundary line included in the differential image block, the differential image block indicating a difference between an original image and a prediction image with respect to the original image, a transform encoder to perform a transform encoding with respect to the first domain using a discrete cosine transform (DCT), a quantization unit to quantize an output of the transform encoding unit in a frequency domain, a space domain quantization unit to quantize the second domain in a space domain, and an entropy encoder to perform an entropy encoding using outputs of the quantization unit and the space domain quantization unit.


Patent
Electronics, Telecommunications Research Institute and Kwangwoon University | Date: 2016-07-01

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.


Patent
Electronics, Telecommunications Research Institute, Kwangwoon University, Kyung Hee University, Korea Advanced Institute of Science and Technology | Date: 2016-02-22

Provided is a video encoding apparatus, including a signal separator to separate a differential image block into a first domain and a second domain, based on a boundary line included in the differential image block, the differential image block indicating a difference between an original image and a prediction image with respect to the original image, a transform encoder to perform a transform encoding with respect to the first domain using a discrete cosine transform (DCT), a quantization unit to quantize an output of the transform encoding unit in a frequency domain, a space domain quantization unit to quantize the second domain in a space domain, and an entropy encoder to perform an entropy encoding using outputs of the quantization unit and the space domain quantization unit.


Patent
Electronics, Telecommunications Research Institute, Kwangwoon University and Kyung Hee University | Date: 2016-10-07

The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.


Patent
Electronics, Telecommunications Research Institute, Kwangwoon University and Kyung Hee University | Date: 2016-10-07

The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.


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.


The present invention enables efficient decoding by using DR mapping information between a base layer and an enhancement layer in various manners in an HDR decoder considering backward compatibility.


Patent
Kwangwoon University | Date: 2016-01-21

The present invention provides a plasma source in the form of a pad so that a user discretionally wears the plasma pad, i.e., present invention provides a wearable plasma pad that is conveniently worn by a user for the purpose of a long period of contact to plasma, fabricated discretionally into various shapes and areas and appropriately responds to the body part that requires a plasma therapy. The plasma pad according to the present invention is fabricated with a flexible base plate on which a high voltage electrode coated or layer with dielectric materials and a ground electrode are arrayed. AC voltage is applied to the high voltage electrode so that the plasma pad generates plasma between the electrodes by means of atmospheric discharge. Products such as patch, bandage, cap, hair-band, socks, etc. may be achieved based on the plasma pad thus fabricated.


Patent
Kwangwoon University | Date: 2016-01-28

A plasma toothbrush having an atmospheric plasma generator integrated with a toothbrush and the shape of a conventional toothbrush so that ordinary users operate the plasma toothbrush in a convenient and safe way for treating the teeth and oral cavity with plasma, for which the plasma toothbrush is equipped, in the lower end portion, with the plasma generator that employs dielectric barrier discharge, receives electric power using a domestic power source, rechargeable battery or disposable dry cell, includes an electrode plate to which high voltage is applied and a dielectric layer that covers the electrode plate and assumes the shape of a conventional toothbrush.

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