Woo-Shik

Woo-Shik Jung, Stanford, CA US

Patent application number	Description	Published
20130049150	FORMATION OF METAL NANOSPHERES AND MICROSPHERES - Hemispheres and spheres are formed and employed for a plurality of applications. Hemispheres are employed to form a substrate having an upper surface and a lower surface. The upper surface includes peaks of pillars which have a base attached to the lower surface. The peaks have a density defined at the upper surface by an array of hemispherical metal structures that act as a mask during an etch to remove substrate material down to the lower surface during formation of the pillars. The pillars are dense and uniform and include a microscale average diameter. The spheres are formed as independent metal spheres or nanoparticles for other applications.	02-28-2013

Woo-Shik Kang, Suwon-Si KR

Patent application number	Description	Published
20120108173	METHOD AND APPARATUS FOR CONNECTING WIRELESS NETWORK IN A DIGITAL DEVICE - A method and an apparatus for automatically connecting a wireless Local Area Network (LAN) between digital devices and executing an application program based on the wireless LAN, and more particularly, an apparatus and a method for generating device information indicating attributes in a digital device and obtaining attributes of a peripheral device by analyzing device information of the peripheral device. The apparatus includes a device information generation part configured to generate device information including information about attributes by analyzing the attributes of the digital device. The apparatus also includes a device recognition part configured, when receiving device information of a peripheral device, to obtain attribute information of a device corresponding to the received device information. The apparatus further includes a controller configured to control to transmit the device information generated by the device information generation part, to the peripheral device.	05-03-2012
20120249288	RF-ID TAG READING SYSTEM FOR USING PASSWORD AND METHOD THEREOF - Provided is a RFID tag with enhanced security. The tag includes a tag memory to store thereto pre-determined password information and tag data, an antenna to receive a tag data transmission request signal from an outer reader, and a tag controller to request the reader to transmit the password if the tag data transmission request signal is received, and then to transmit the tag data if the password received from the reader is identical with the pre-determined password. Accordingly, it can be prevented for a third-party, who does not know the password, to check the tag data.	10-04-2012
20150112759	METHOD AND APPARATUS FOR PROVIDING CUSTOMIZED FOOD LIFE SERVICE - A method and apparatus for providing a customized food life service is provided. The method includes: sensing a wireless frequency identification tag attached to food to receive data; processing and storing the received data; analyzing and modeling the stored data; and providing food management information based on the analyzing and modeling result.	04-23-2015

Woo-Shik Kim US

Patent application number	Description	Published
20120163467	METHOD, MEDIUM, AND SYSTEM ENCODING AND/OR DECODING MOVING PICTURES BY ADAPTIVELY APPLYING OPTIMAL PREDICATION MODES - A method, medium, and system encoding and/or decoding a moving picture. The moving picture encoding method may include selecting a prediction mode that is optimal for the macro blocks, which correspond to each other, of the color components of a current image based on the characteristics of a predetermined image, generating a predicted image for the current image according to the selected prediction mode, and encoding a moving picture using the predicted image. An optimal prediction mode can be adaptively applied to the macro blocks, which correspond to each other, of the color components, thereby increasing the moving picture's encoding and decoding efficiencies.	06-28-2012

Woo-Shik Kim, Plano, TX US

Patent application number	Description	Published
20130051454	Sample Adaptive Offset (SAO) Parameter Signaling - A method for sample adaptive offset (SAO) filtering and SAO parameter signaling in a video encoder is provided that includes determining SAO parameters for largest coding units (LCUs) of a reconstructed picture, wherein the SAO parameters include an indicator of an SAO filter type and a plurality of SAO offsets, applying SAO filtering to the reconstructed picture according to the SAO parameters, and entropy encoding LCU specific SAO information for each LCU of the reconstructed picture in an encoded video bit stream, wherein the entropy encoded LCU specific SAO information for the LCUs is interleaved with entropy encoded data for the LCUs in the encoded video bit stream. Determining SAO parameters may include determining the LCU specific SAO information to be entropy encoded for each LCU according to an SAO prediction protocol.	02-28-2013

Woo-Shik Kim, Dallas, TX US

Patent application number	Description	Published
20130114909	Method and Apparatus for Image and Video Coding Using Hierarchical Sample Adaptive Band Offset - A method and apparatus for image coding using hierarchical sample adaptive band offset. The method includes decoding a signal of a portion of an image, determining a band offset type and offset of a portion of the image, utilizing the band offset type and offset to determine a sub-band, and reconstructing a pixel value according to the determined offset value.	05-09-2013
20130308696	Method and Apparatus for Sample Adaptive Offset Without Sign Coding - A method and apparatus for sample adaptive offset without sign coding. The method includes selecting an edge offset type for at least a portion of an image, classifying at least one pixel of at least the portion of the image into edge shape category, calculating an offset of the pixel, determining the offset is larger or smaller than a predetermined threshold, changing a sign of the offset based on the threshold determination; and performing entropy coding accounting for the sign of the offset and the value of the offset.	11-21-2013

Woo-Shik Kim, San Diego, CA US

Patent application number	Description	Published
20130182759	Method and Apparatus for Sample Adaptive Offset Parameter Estimation in Video Coding - A method for sample adaptive offset (SAO) filtering in a video encoder is provided that includes estimating SAO parameters for color components of a largest coding unit (LCU) of a picture, wherein estimating SAO parameters includes using at least some non-deblock-filtered reconstructed pixels of the LCU to estimate the SAO parameters, performing SAO filtering on the reconstructed LCU according to the estimated SAO parameters, and entropy encoding SAO information for the LCU in a compressed video bit stream, wherein the SAO information signals the estimated SAO parameters for the LCU.	07-18-2013
20130223542	Sample Adaptive Offset (SAO) Parameter Signaling - Techniques for signaling of sample adaptive offset (SAO) information that may reduce the coding rate for signaling such information in the compressed bit stream are provided. More specifically, techniques are provided that allow SAO information common to two or more of the color components to be signaled using one or more syntax elements (flags or indicators) representative of the common information. These techniques reduce the need to signal SAO information separately for each color component.	08-29-2013
20140301438	SAMPLE ADAPTIVE OFFSET SCALING BASED ON BIT-DEPTH - This disclosure provides systems, methods and apparatus for sample adaptive offset (SAO) scaling. For example, the apparatus may include a processor configured to determine an offset value for an SAO filter applied to video data to improve reconstruction of signal amplitudes in the video data. The processor may be further configured to determine a first value indicative of a bit depth and a second value indicative of a scale factor for the video data, to provide a scaled offset value based on applying the scale factor to the offset value, and to scale at least one color component of the video data according to the scaled offset value. The processor may also be configured to identify an edge offset category for a scaled group of neighboring pixel values, and to adjust the SAO filter based on the identified edge offset category.	10-09-2014
20140334559	Sample Adaptive Offset (SAO) Parameter Signaling - Techniques for signaling of sample adaptive offset (SAO) information that may reduce the coding rate for signaling such information in the compressed bit stream are provided. More specifically, techniques are provided that allow SAO information common to two or more of the color components to be signaled using one or more syntax elements (flags or indicators) representative of the common information. These techniques reduce the need to signal SAO information separately for each color component.	11-13-2014
20140348240	VIDEO CODING USING SAMPLE PREDICTION AMONG COLOR COMPONENTS - A video coder may reconstruct a residual signal of a predictor color component generated using motion prediction. The reconstructed residual signal of the predictor color component may include reconstructed residual sample values of the predictor color component. Additionally, the video coder may use the reconstructed residual sample values of the predictor color component to predict residual sample values of a different, predicted color component.	11-27-2014
20140376611	ADAPTIVE COLOR TRANSFORMS FOR VIDEO CODING - A device for coding video data includes a memory and at least one processor configured to determine a cost associated with a plurality of color transforms associated with a coding unit, determine a cost associated with a plurality of color transforms associated with a coding unit, select a color transform of the plurality of color transforms having a lowest associated cost, transform a first block of video data having a first, Red, Green, Blue (RGB) color space to produce a second block of video data having a second color space using the selected color transform of the plurality of color transforms, and encode the second video block having the second color space.	12-25-2014
20140376634	INTRA PREDICTION FROM A PREDICTIVE BLOCK - Techniques coding video data, including a mode for intra prediction of blocks of video data from predictive blocks of video data within the same picture, may include determining a predictive block of video data for the current block of video data, wherein the predictive block of video data is a reconstructed block of video data within the same picture as the current block of video data. A two-dimensional vector, which may be used by a video coder to identify the predictive block of video data, includes a horizontal displacement component and a vertical displacement component relative to the current block of video data. The mode for intra prediction of blocks of video data from predictive blocks of video data within the same picture may be referred to as Intra Block Copy or Intra Motion Compensation.	12-25-2014
20150016501	PALETTE PREDICTION IN PALETTE-BASED VIDEO CODING - In palette-based coding, a video coder may form a so-called “palette” as a table of colors representing the video data of a given block. The video coder may code index values for one or more pixels values of a current block of video data, where the index values indicate entries in the palette that represent the pixel values of the current block. According to the techniques, a video coder determines one or more palette entries in a predictive palette that are copied to the current palette, and a number of new palette entries not in the predictive palette that are included in the current palette. The video coder calculates a size of the current palette equal to the sum of the number of the copied palette entries and the number of the new palette entries, and generates the current palette including the copied palette entries and the new palette entries.	01-15-2015
20150016512	INTER-COLOR COMPONENT RESIDUAL PREDICTION - A device for decoding video data includes a memory configured to store video data, and at least one processor. The at least one processor may be configured to: determine luma residual samples for a block of video data, determine predictive chroma residual samples for the block of video data, scale the luma residual samples with a scale factor to produce scaled luma residual samples, and determine updated chroma residual samples based on the predictive chroma residual samples and the scaled luma residual samples.	01-15-2015
20150016550	ADAPTIVE FILTERING IN VIDEO CODING - Performing deblock filtering on video data may include determining, for a first non-luma color component of the video data, whether to perform deblock filtering based on a first deblock filtering process or a second deblock filtering process. Next, deblock filtering may be performed on the first non-luma color component in accordance with the determined deblock filtering process.	01-15-2015
20150023405	DISABLING INTRA PREDICTION FILTERING - A video decoder may adaptively disable, based on a syntax element, one or more filters used for intra-prediction. In addition, the video decoder may perform intra-prediction to generate prediction data for a current block of a current video slice. Furthermore, a video encoder may adaptively disable one or more filters used for intra-prediction. Furthermore, the video encoder may signal a syntax element that controls the one or more filters. In addition, the video encoder may perform intra prediction to generate prediction data for a current video block the video data.	01-22-2015
20150098503	HIGH PRECISION EXPLICIT WEIGHTED PREDICTION FOR VIDEO CODING - In one example, a device for coding video data includes a memory configured to store video data, and a video coder configured to code a value for a syntax element representative of whether a high bit depth is enabled for the video data, and when the value for the syntax element indicates that the high bit depth is enabled: code a value for a syntax element representative of the high bit depth for one or more parameters of the video data, code values for the parameters such that the values for the parameters are representative of bit depths that are based on the value for the syntax element representative of the high bit depth, and code the video data based at least in part on the values for the parameters.	04-09-2015
20150117519	ADAPTIVE INTER-COLOR COMPONENT RESIDUAL PREDICTION - A device for decoding video data includes a memory configured to store video data, and at least one processor. The at least one processor is configured to: determine a first bit-depth of luma residual samples for a block of video data, determine a second bit-depth of predicted chroma residual samples for the block of video data, adjust the luma residual samples based on the first bit-depth and the second bit-depth to produce bit-depth adjusted luma residual samples, determine chroma residual samples for the block of video data based on the bit-depth adjusted luma residual samples and the predicted chroma residual samples, and decode the block of video data based on the luma residual samples and the chroma residual samples.	04-30-2015
20150124865	COLOR RESIDUAL PREDICTION FOR VIDEO CODING - A method of decoding video data includes decoding a first block of video data to produce a block of reconstructed luma residual values and a block of predicted chroma residual values, wherein the block of video data has one of a 4:2:0 or a 4:2:2 chroma sub-sampling format. The method further includes performing a color residual prediction process to reconstruct a block of chroma residual values for the first block of video data using a subset of the reconstructed luma residual values as luma predictors for the block of predicted chroma residual values.	05-07-2015

Woo-Shik Kim, Kyugki-Do KR

Patent application number	Description	Published
20130064464	IMAGE CODING METHOD AND APPARATUS USING SPATIAL PREDICTIVE CODING OF CHROMINANCE AND IMAGE DECODING METHOD AND APPARATUS - A coding method including dividing pixels of a chrominance component of an input image into blocks having a predetermined size; selecting one among a direct current prediction method, a vertical prediction method, a horizontal prediction method, and a hybrid prediction method according to a user's input; generating a prediction value of each pixel in a current block to be predictively coded, using at least one pixel value among pixel values in an upper reference block adjacent to the current block and in a side reference block adjacent to the current block, according to the selected prediction method; generating a differential value between the prediction value and a corresponding real pixel value in the current block; and coding the differential value and information on the selected prediction method using a predetermined coding method.	03-14-2013
20140348236	IMAGE CODING METHOD AND APPARATUS USING SPATIAL PREDICTIVE CODING OF CHROMINANCE AND IMAGE DECODING METHOD AND APPARATUS - A coding method including dividing pixels of a chrominance component of an input image into blocks having a predetermined size; selecting one among a direct current prediction method, a vertical prediction method, a horizontal prediction method, and a hybrid prediction method according to a user's input; generating a prediction value of each pixel in a current block to be predictively coded, using at least one pixel value among pixel values in an upper reference block adjacent to the current block and in a side reference block adjacent to the current block, according to the selected prediction method; generating a differential value between the prediction value and a corresponding real pixel value in the current block; and coding the differential value and information on the selected prediction method using a predetermined coding method.	11-27-2014

Woo-Shik Kim, Gyeonggi-Do KR

Patent application number	Description	Published
20090196351	Video encoding/decoding apparatus and method for color image - A video encoding/decoding apparatus and method for color images include a first motion prediction unit that generates a first prediction residue image of an input image on a basis of a first motion prediction result of the input image. An image information detection unit sets a predetermined color component of an R-G-B image to a reference color component and determines whether the input image is a Y-Cb-Cr image or an R-G-B image and whether a color component is the reference color component. A second motion prediction unit performs motion prediction for the first prediction residue image and generates a second prediction residue image if the input image is the R-G-B image and the color component of the input image is not the reference color component.	08-06-2009
20120170414	ACOUSTIC SIGNAL DETECTOR - Disclosed is an acoustic signal detector for detecting a target with moving in water. The acoustic signal detector may include a body having a front portion, the front portion having a cross section which becomes gradually narrow and an end formed to have a plane. The plane may be perpendicular to a moving direction of the acoustic signal detector. The acoustic signal detector may further include a plurality of sensor arrays configured to generate sound and detect sound returned by being reflected by a target. The plurality of sensor arrays may be mounted on a side surface of the front portion and on the plane.	07-05-2012

Woo-Shik Kim, Yongin-City KR

Patent application number	Description	Published
20150156493	IMAGE CODING AND DECODING METHOD AND APPARATUS CONSIDERING HUMAN VISUAL CHARACTERISTICS - An image coding method and apparatus considering human visual characteristics are provided. The image coding method comprises (a) modeling image quality distribution of an input image in units of scenes such that the quality of an image input in units of scenes is gradually lowered from a region of interest to a background region, (b) determining a quantization parameter of each region constituting one scene according to the result of modeling of image quality distribution, (c) quantizing image data in accordance with the quantization parameter, and (d) coding entropy of the quantized image data.	06-04-2015

Woo-Shik Kim, Yongin-Si KR

Patent application number	Description	Published
20110235710	Image encoding and decoding apparatus and method - An image encoding and decoding apparatus and method, the image encoding and decoding apparatus includes: an encoding unit adjusting at least one weight value adaptively to the number of bits expressing each pixel of a current image, predicting a pixel value of a block of interest by performing an operation on a pixel value of at least one block having a pixel value similar to the pixel value of the block of interest among blocks included in a previous image and the at least one adjusted weight value, and encoding the pixel value of the block of interest using the predicted pixel value of the block of interest; and a decoding unit adjusting the at least one weight value adaptively to the number of bits, restoring the predicted pixel value of the block of interest by performing an operation on the pixel value of the at least one block having the pixel value similar to the pixel value of the block of interest among blocks included in the restored previous image and the at least one adjusted weight value, and decoding the pixel value of the block of interest using the restored pixel value, wherein the previous image refers to an image displayed prior to a current image, and the block of interest is a target block of interest among blocks belonging to the current image.	09-29-2011
20110235930	Image encoding and decoding apparatus and method - An image encoding and decoding apparatus and method, the image encoding and decoding apparatus includes: an encoding unit adjusting at least one weight value adaptively to the number of bits expressing each pixel of a current image, predicting a pixel value of a block of interest by performing an operation on a pixel value of at least one block having a pixel value similar to the pixel value of the block of interest among blocks included in a previous image and the at least one adjusted weight value, and encoding the pixel value of the block of interest using the predicted pixel value of the block of interest; and a decoding unit adjusting the at least one weight value adaptively to the number of bits, restoring the predicted pixel value of the block of interest by performing an operation on the pixel value of the at least one block having the pixel value similar to the pixel value of the block of interest among blocks included in the restored previous image and the at least one adjusted weight value, and decoding the pixel value of the block of interest using the restored pixel value, wherein the previous image refers to an image displayed prior to a current image, and the block of interest is a target block of interest among blocks belonging to the current image.	09-29-2011
20120275696	METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE - An apparatus and method for encoding and decoding an image are provided. The image decoding method includes (a) decoding luma blocks according to a predetermined decoding mode of each of the luma blocks, and (b) decoding chroma blocks according to the predetermined decoding mode of each of the luma blocks.	11-01-2012
20120275716	METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE - An apparatus and method for encoding and decoding an image are provided. The image decoding method includes decoding luma blocks according to a predetermined decoding mode of each of the luma blocks, and decoding chroma blocks according to the predetermined decoding mode of each of the luma blocks.	11-01-2012
20130011058	METHOD, MEDIUM AND SYSTEM ENCODING AND/OR DECODING AN IMAGE - An encoding method, medium, and system encoding an image, with an image being encoded by generating a plurality of image slices as images of each color component of the image and encoding the image slices in parallel with each other and independently of each other. Accordingly, although an image to be encoded has a large number of color components, the image can be compressed promptly. In addition, a decoding method, medium, and system are also provided decoding an image, with a plurality of encoded image slices being included in a corresponding bitstream, which are images of each color component of the image to be restored, are decoded in parallel with each other and independently of each other so as to restore the image using the decoded image slices. Accordingly, although an image to be decoded has a large number of color components, the image can be restored promptly.	01-10-2013
20130272604	METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE - An apparatus and method for encoding and decoding an image are provided. The image decoding method includes (a) decoding luma blocks according to a predetermined decoding mode of each of the luma blocks, and (b) decoding chroma blocks according to the predetermined decoding mode of each of the luma blocks.	10-17-2013
20140198990	METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE - An apparatus and method for encoding and decoding an image are provided. The image decoding method includes decoding luma blocks according to a predetermined decoding mode of each of the luma blocks, and decoding chroma blocks according to the predetermined decoding mode of each of the luma blocks.	07-17-2014
20140212034	METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE - An apparatus and method for encoding and decoding an image are provided. The image decoding method includes decoding luma blocks according to a predetermined decoding mode of each of the luma blocks, and decoding chroma blocks according to the predetermined decoding mode of each of the luma blocks.	07-31-2014
20150036925	METHOD, MEDIUM, AND APPARATUS ENCODING AND/OR DECODING AN IMAGE USING THE SAME CODING MODE ACROSS COMPONENTS - A method, medium, and apparatus encoding and/or decoding an image in order to increase encoding and decoding efficiency by performing binary-arithmetic coding/decoding on a binary value of a syntax element using a probability model having the same syntax element probability value for respective context index information of each of at least two image components.	02-05-2015
20150063456	IMAGE ENCODING AND DECODING APPARATUS AND METHOD - An image encoding and decoding apparatus and method, the image encoding and decoding apparatus includes: an encoding unit adjusting at least one weight value adaptively to the number of bits expressing each pixel of a current image, predicting a pixel value of a block of interest by performing an operation on a pixel value of at least one block having a pixel value similar to the pixel value of the block of interest among blocks included in a previous image and the at least one adjusted weight value, and encoding the pixel value of the block of interest using the predicted pixel value of the block of interest; and a decoding unit adjusting the at least one weight value adaptively to the number of bits, restoring the predicted pixel value of the block of interest by performing an operation on the pixel value of the at least one block having the pixel value similar to the pixel value of the block of interest among blocks included in the restored previous image and the at least one adjusted weight value, and decoding the pixel value of the block of interest using the restored pixel value, wherein the previous image refers to an image displayed prior to a current image, and the block of interest is a target block of interest among blocks belonging to the current image.	03-05-2015
20150125075	METHOD, MEDIUM, AND SYSTEM ENCODING AND/OR DECODING AN IMAGE USING IMAGE SLICES - An encoding method, medium, and system encoding an image, with an image being encoded by generating a plurality of image slices as images of each color component of the image and encoding the image slices in parallel with each other and independently of each other. Accordingly, although an image to be encoded has a large number of color components, the image can be compressed promptly. In addition, a decoding method, medium, and system are also provided decoding an image, with a plurality of encoded image slices being included in a corresponding bitstream, which are images of each color component of the image to be restored, are decoded in parallel with each other and independently of each other so as to restore the image using the decoded image slices. Accordingly, although an image to be decoded has a large number of color components, the image can be restored promptly.	05-07-2015
20150125076	METHOD, MEDIUM, AND SYSTEM ENCODING AND/OR DECODING AN IMAGE USING IMAGE SLICES - An encoding method, medium, and system encoding an image, with an image being encoded by generating a plurality of image slices as images of each color component of the image and encoding the image slices in parallel with each other and independently of each other. Accordingly, although an image to be encoded has a large number of color components, the image can be compressed promptly. In addition, a decoding method, medium, and system are also provided decoding an image, with a plurality of encoded image slices being included in a corresponding bitstream, which are images of each color component of the image to be restored, are decoded in parallel with each other and independently of each other so as to restore the image using the decoded image slices. Accordingly, although an image to be decoded has a large number of color components, the image can be restored promptly.	05-07-2015