Patent application number | Description | Published |
20090198497 | METHOD AND APPARATUS FOR SPEECH SYNTHESIS OF TEXT MESSAGE - Provided is a method and apparatus for speech synthesis of a text message. The method includes receiving input of voice parameters for a text message, storing each of the text message and the input voice parameters in a data packet, and transmitting the data packet to a receiving terminal. | 08-06-2009 |
20120213275 | SCALABLE VIDEO CODING AND DEVICES PERFORMING THE SCALABLE VIDEO CODING - A data processing system includes a scalable encoder including an encoder and a control module. The encoder includes at least two layer encoders and has an encoder configuration determined during initialization. The control module is configured to generate an encoder control code in accordance with transmission conditions of a communication channel, the encoder control code controlling operation of the at least two encoding layers. | 08-23-2012 |
20130286240 | IMAGE CAPTURING DEVICE AND OPERATING METHOD OF IMAGE CAPTURING DEVICE - An operating method of an image capturing device includes capturing an image; detecting a target object from the captured image; calculating modification parameters based on the detected target object; generating an adjusted image by adjusting a size of an area of the captured image according to the modification parameters; and displaying the adjusted image. | 10-31-2013 |
20130287120 | BITRATE ESTIMATION DEVICES AND BITRATE ESTIMATION METHODS THEREOF - A bitrate estimation method includes: calculating a number of symbol bins of a received syntax element; deciding average bit amount corresponding to the number of symbol bins using a look-up table; and estimating a bitrate based on the number of symbol bins and the average bit amount. Bitrate estimation methods and corresponding devices have improved operation speed, accuracy and/or simplified computation. | 10-31-2013 |
20130322524 | RATE CONTROL METHOD FOR MULTI-LAYERED VIDEO CODING, AND VIDEO ENCODING APPARATUS AND VIDEO SIGNAL PROCESSING APPARATUS USING THE RATE CONTROL METHOD - A rate control method for multi-layered video coding, a video encoding apparatus and a video signal processing system employing the rate control method. In the rate control method for multi-layered video coding, encoding statistical information is generated based on the result of encoding input video data on a first layer. A second rate controller generates a plurality of quantization parameters to be used when encoding is performed on a second layer, based on the encoding statistical information and/or region of interest (ROI) information. Target numbers of bits that are to be respectively assigned to regions of a second layer are determined based on the encoding statistical information and/or ROI information, and the input video data is encoded at the second layer, based on the target numbers of bits. | 12-05-2013 |
20140254670 | METHOD AND APPARATUS FOR ROI CODING USING VARIABLE BLOCK SIZE CODING INFORMATION - A video/image compression method based on an region of interest (ROI) can be performed in a variable block video encoder such as a HEW. A ROI coding method using variable block size coding information partitions a maximum coding unit (LCU) block obtained from an image into coding unit (CU) blocks. To obtain a quantization parameter of each coding unit (CU) block, the value of its quantization parameter is assigned based on its first hierarchical depth information and its second hierarchical depth information by using the first hierarchical depth information related to the size of the coding unit (CU) block and using the second hierarchical depth information related to the size of a prediction unit (PU) block correspondingly represented in consequence of the partition of the coding unit (CU) block. The resulting values of a quantization parameter assigned to different coding unit (CU) blocks may be different. | 09-11-2014 |
20140269923 | METHOD OF STABILIZING VIDEO, POST-PROCESSING CIRCUIT AND VIDEO DECODER INCLUDING THE SAME - To stabilize video (an image sequence), reconstructed block data and decoding information of a video frame are received by unit of macroblock from a decoding circuit. Global affine parameters are determined and provided based on the reconstructed block data and the decoding information, and the global affine parameters represent an affine transform of a frame. Stabilized block data are provided based on the global affine parameters by compensating the reconstructed block data for an affine motion corresponding to the affine transform. | 09-18-2014 |
20140328390 | METHOD, DEVICE AND SYSTEM FOR CHANGING QUANTIZATION PARAMETER FOR CODING UNIT IN HEVC - A method of individually setting the quantization parameter for each coding unit of a frame in high efficiency video coding (HEVC) is disclosed. The method for setting a quantization parameter for each coding unit in a frame for HEVC encoding includes receiving at least one of partition size information of the coding unit and prediction mode information of the coding unit, performing an adaptive bit allocation operation per each coding unit based on at least one of the unit partition size information of the coding unit and the prediction mode information of the coding unit, and setting a quantization parameter per each coding unit according to the performed adaptive bit allocation operation. | 11-06-2014 |
20140348436 | OPERATION METHOD OF IMAGE CODEC CIRCUIT, METHOD OF ENCODING IMAGE DATA AND METHOD OF DECODING IMAGE DATA - The inventive concept relates to an encoding method of encoding image data of a frame including a plurality of image blocks. The encoding method includes selecting a first image block as the main image block of a first window, selecting a first window having to perform a plurality of loop filtering schemes on image data of the selected window. The loop filtering schemes includes a deblocking filtering, a sample adaptive offset filtering, and an adaptive loop filtering. The perimeter of the selected first window does not coincide with the perimeter of the first image block. | 11-27-2014 |
20150049801 | INTRA REFRESH METHOD FOR VIDEO ENCODING AND A VIDEO ENCODER FOR PERFORMING THE SAME - An intra refresh method is provided. The intra refresh method includes dividing a first frame into regions, counting a number of intra macroblocks included in each of the regions, calculating weight values of the regions, configuring a macroblock included in a second region of a second frame as an intra macroblock, based on the number of the first region. The second region corresponds to the first region. | 02-19-2015 |
20150077596 | DEPTH INFORMATION BASED OPTICAL DISTORTION CORRECTION CIRCUIT AND METHOD - Provided are a depth information based optical distortion correction (ODC) circuit and method. The ODC circuit includes a depth acquisition unit acquiring a depth of an image, a grid generation unit dynamically generating a correction grid corresponding to the depth of the image using depth information of the image and a projection matrix, and a distortion correction unit correcting optical distortion in the image using the correction grid. The corrected image can then be stored, transmitted, or otherwise output. The image can be a single static image or photograph or a frame in a video recording. | 03-19-2015 |