Patent application number | Description | Published |
20100021071 | IMAGE CODING APPARATUS AND IMAGE DECODING APPARATUS - The present invention provides an image coding apparatus and an image decoding apparatus capable of enhancing the image quality of decoded image data. | 01-28-2010 |
20100135398 | METHOD FOR DETERMINING FILTER COEFFICIENT OF TWO-DIMENSIONAL ADAPTIVE INTERPOLATION FILTER - A method for efficiently determining an appropriate filter coefficient of a two-dimensional adaptive interpolation filter with less calculation, the method including: a motion estimating step (S | 06-03-2010 |
20100220788 | VIDEO CODING METHOD AND VIDEO DECODING METHOD - A video coding method and a video coding device can optimize prediction efficiency and coding efficiency. | 09-02-2010 |
20100226432 | INTERPOLATION FILTERING METHOD, IMAGE CODING METHOD, IMAGE DECODING METHOD, INTERPOLATION FILTERING APPARATUS, PROGRAM, AND INTEGRATED CIRCUIT - An interpolation filtering method includes selecting (S | 09-09-2010 |
20100254450 | VIDEO CODING METHOD, VIDEO DECODING METHOD, VIDEO CODING APPARATUS, VIDEO DECODING APPARATUS, AND CORRESPONDING PROGRAM AND INTEGRATED CIRCUIT - A video coding method according to the present invention is for coding a signal to be coded which represents a video, and includes: generating a prediction signal predictive of the signal to be coded, based on a coded signal coded prior to the coding of the signal to be coded (S | 10-07-2010 |
20100254463 | IMAGE CODING METHOD, IMAGE DECODING METHOD, IMAGE CODING APPARATUS, IMAGE DECODING APPARATUS, SYSTEM, PROGRAM, AND INTEGRATED CIRCUIT - An image coding method includes: quantizing a signal to be coded to determine a quantized coefficient (S | 10-07-2010 |
20110249755 | MOVING IMAGE CODING METHOD, MOVING IMAGE DECODING METHOD, MOVING IMAGE CODING APPARATUS, MOVING IMAGE DECODING APPARATUS, PROGRAM, AND INTEGRATED CIRCUIT - The coding method includes: transforming pixel values of an image into a two-dimensional matrix including N coefficients in a frequency domain; quantizing the N coefficients to generate N quantized coefficients; generating a one-dimensional sequence based on the two-dimensional matrix and tree structure information that defines a binary tree; and coding the one-dimensional sequence and at least some of the N quantized coefficients. The generating includes: determining, based on the two-dimensional matrix, a reference destination information item indicating positions of the N quantized coefficients in the two-dimensional matrix to be referenced to by the N leaf nodes, respectively (S | 10-13-2011 |
20110305388 | IMAGE PROCESSING METHOD, AND IMAGE PROCESSING DEVICE - The image processing device includes: a specular reflection detector ( | 12-15-2011 |
20120027083 | VIDEO CODING METHOD, VIDEO DECODING METHOD, VIDEO CODING APPARATUS, AND VIDEO DECODING APPARATUS - A video coding method which enables reduction in the decrease in the efficiency of coding a video and enhancement of the image quality of the resulting decoded video involves: predicting a video signal to generate a prediction signal (S | 02-02-2012 |
20120082242 | IMAGE CODING METHOD, IMAGE DECODING METHOD, AND APPARATUSES THEREFOR - The image coding method for improving the filtering quality and suppressing increase in the transmission bandwidth includes: selecting filter data elements of the first and second component filters from a filter memory ( | 04-05-2012 |
20120127003 | CODING METHOD, DECODING METHOD, CODING APPARATUS, AND DECODING APPARATUS - A coding method according to the present invention comprises: transforming an input signal; quantizing a transformed output signal; and entropy coding quantized coefficients, wherein the transforming includes: generating a first transformed output signal by performing a first transform on the input signal using a first transform coefficient; generating a second transformed output signal by performing, using a second transform coefficient, a second transform on a first partial signal which is a part of the first transformed output signal, and outputting the transformed output signal including the generated second transformed output signal and a second partial signal which is the remaining part of the first transformed output signal other than the first partial signal; and modifying the first transformed output signal. | 05-24-2012 |
20120134408 | CODING METHOD, DECODING METHOD, CODING APPARATUS, AND DECODING APPARATUS - A coding method comprises: transforming an input signal; scanning and quantizing coefficient values composing the transformed output signal; and entropy coding the quantized coefficients, wherein the transforming includes: generating a first transformed output signal by performing a first transform on the input signal using a first transform coefficient; and generating a second transformed output signal by performing, using a second transform coefficient, a second transform on a first partial signal which is a part of the first transformed output signal, and outputting the transformed output signal including the generated second transformed output signal and a second partial signal that is the remaining part of the first transformed output signal other than the first partial signal, and a signal corresponding to the second transformed output signal and a signal corresponding to the second partial signal are processed differently in at least one of the scanning, the quantizing, and the entropy coding. | 05-31-2012 |
20120134412 | ENCODING METHOD, DECODING METHOD, ENCODING DEVICE AND DECODING DEVICE - A coding method according to the present invention comprises: transforming an input signal to generate a transformed output signal; quantizing the transformed output signal to generate quantized coefficients; and entropy coding the quantized coefficients to generate a coded signal, wherein the transforming includes: generating a first transformed output signal by performing a first transform on the input signal using a first transform coefficient; and generating a second transformed output signal by performing, using a second transform coefficient, a second transform on a first partial signal which is a part of the first transformed output signal, and outputting the transformed output signal including (i) the generated second transformed output signal and (ii) a second partial signal which is the remaining part of the first transformed output signal other than the first partial signal. | 05-31-2012 |
20130034164 | MOTION COMPENSATION METHOD, IMAGE DECODING METHOD, IMAGE CODING METHOD, MOTION COMPENSATION APPARATUS, PROGRAM, AND INTEGRATED CIRCUIT - A motion compensation method includes: specifying, using a motion vector of a current block, a reference image area for use in motion compensation for each of the current block and a current sub-block spatially adjacent to the current block, to read out reference pixel data of the specified area from a frame memory; performing motion compensation using the reference pixel data read out in the readout, to generate prediction pixel data for each of the current block and the current sub-block; outputting the prediction pixel data for the current block, generated in the performing of motion compensation; and temporarily storing the prediction pixel data for the current sub-block, generated in the performing of motion compensation. | 02-07-2013 |
20130094582 | VIDEO CODING METHOD AND VIDEO DECODING METHOD - A video coding device codes video data, by performing motion compensation with sub-pel resolution by using an adaptive interpolation filter for calculating a pixel value of a sub pixel for interpolation between full pixels configuring an input image included in the video data. The video coding device includes a motion compensation unit setting a filter property for an adaptive interpolation filter on a predetermined process unit basis, determining, for each of sub-pel positions relative to a full pixel, a plurality of filter coefficients of the adaptive interpolation filter having the set filter property, and performing the motion compensation with sub-pel resolution, by applying the adaptive interpolation filter having the determined filter coefficients to the input image. The video coding device includes a subtraction unit generating a prediction error, by subtracting, from the input image, a prediction image generated in the motion compensation, and a coding unit coding the prediction error. | 04-18-2013 |
20130101032 | FILTERING MODE FOR INTRA PREDICTION INFERRED FROM STATISTICS OF SURROUNDING BLOCKS - The present invention relates to intra prediction which may be performed during encoding and/or decoding of an image signal. In particular, the present invention relates to intra prediction of a current block, during which filtering is applied to the prediction signal and/or to signal used for the prediction. The filtering is applied in accordance with a decision based on characteristics of image signal included in block(s) spatially adjacent to the current block. | 04-25-2013 |