Lg Electronics Inc.

Other

Realnetworks Asia Pacific Co., Ltd.

2wg Co. Ltd

Jae Min Kim

Sung Ho Lee

Tae Hoon Kim

Jin Soo Park

Yong Chul Park

Jang Ho Shim

Yong Joo Kim

Jung Kyu Choi

Joon Yup Lee

Jong Se Park

Seok Bok Jang

Moo Hong Seo

Jae Hak Choi

A construction method of a steel composite girder bridge includes installing steel girders on piers and forming shearing connectors on the steel girders at intervals of a predetermined distance, installing stagings and a first form for casting deck concrete in the steel girders, installing non-composite members in an upper flange of the steel girders to form each non-composite section of supporting points, installing a second form around each of the shearing connectors to form a shearing pocket, arranging sheath pipes in the supporting points and forming supporting point decks by casting and curing concrete, applying pre-stress to each section of the supporting point decks through the sheath pipes and performing a grouting process, forming span decks adjacent to the supporting point decks by casting and curing concrete in each span between the piers, and filling the shearing pockets with non-shrinkage mortar.

Construction method of steel composition girder bridge

A mobile terminal outputs text-to-speech (TTS) voice data. The mobile terminal displays text data including link data on a display unit of the mobile terminal, selects the link data, receives an original data of the link data as a background process, converts the original data to the TTS voice data, and outputs the TTS voice data though a voice outputting unit of the mobile terminal.

Mobile terminal

A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect.In an embodiment, the decoding apparatus includes a filtering unit configured to determine a value of a pixel of an image. The filtering unit is configured to determine the value by selecting a filtering mask including eight pixels based on a position of the pixel of the image, and applying a weighted averaging operation to a number of the eight pixels included in the filtering mask.

Decoding apparatus including a filtering unit configured to determine a pixel value using a weighted average operation

A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect.A decoding apparatus including a filtering unit configured to filter an image by selecting a filter mask extending either horizontally or vertically.

Decoding apparatus including a filtering unit configured to filter an image by selecting a filter mask extending either horizontally or vertically

A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect.In the method, a value of a pixel of an image is determined according to a filtering methodology. The filtering methodology includes selecting a filtering mask including eight pixels based on a position of the pixel of the image, and applying an averaging operation to a number of the eight pixels included in the filtering mask.

Method of determining a pixel value

A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect.In the method, a value of a pixel of an image is determined according to a filtering methodology. The filtering methodology includes selecting a filtering mask including eight pixels based on a position of the pixel of the image, and applying a weighted averaging operation to a number of the eight pixels included in the filtering mask.

Method of determining a pixel value using a weighted average operation

A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect.In one embodiment, the filtering unit is configured to select at least four pixels of successive pixels according to a position of a pixel to be filtered. The four pixels include the pixel to be filtered. At least one of the four pixels may be in a first block, and three of the four pixels may be in a second block adjacent to the first block. The filtering unit is configured to determine a difference between two of the successive pixels. The filtering unit is configured to apply an averaging operation to the selected at least four pixels.

Decoding apparatus including a filtering unit configured to filter an image based on averaging operation and difference

A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect.In the method, a pixel of an image is filtered according to a filtering methodology. The filtering methodology includes selecting at least four pixels of successive pixels according to a position of a pixel to be filtered. The four pixels include the pixel to be filtered. At least one of the four pixels may be in a first block, and three of the four pixels may be in a second block adjacent to the first block. The filtering methodology includes determining a difference between two of the successive pixels and comparing the difference to a threshold.

Method of image filtering based on selected pixels and a difference between pixels

A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect.In an embodiment, the filtering unit is configured to select a filtering mask based on a position of a pixel to be filtered. The filtering mask includes the pixel to be filtered and at least one candidate pixel. The filtering unit is configured to filter the pixel to be filtered by applying a weighted averaging operation to the pixel to be filtered and the at least one candidate pixel. The weighted averaging operation includes applying weight to at least one of the pixel to be filtered and the at least one candidate pixel in producing a weighted sum value, and performing a shift operation on the weighted sum value to divide by a desired value.

Decoding apparatus including a filtering unit configured to filter an image by application of a weighted average operation

A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect.In an embodiment, the filtering unit is configured to select at least four pixels of successive pixels according to a position of a pixel to be filtered. The selected at least four pixels includes the pixel to be filtered, at least one of the selected at least four pixels is in a first block, and three of the selected at least four pixels are in a second block adjacent to the first block. The filtering unit is configured to apply an averaging operation to the selected at least four pixels, and the averaging operation includes a shift operation.

Decoding apparatus including a filtering unit configured to filter an image based on averaging operation including a shift operation applied to selected successive pixels

A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect.In an embodiment of the present invention, a pixel of an image is filtered according to a filtering methodology. The filtering methodology includes selecting at least four pixels of successive pixels according to a position of a pixel to be filtered. The selected at least four pixels includes the pixel to be filtered, at least one of the selected at least four pixels is in a first block, and three of the selected at least four pixels are in a second block adjacent to the first block. The filtering methodology includes applying an averaging operation to the selected at least four pixels, and the averaging operation includes a shift operation.

Method of image filtering based on averaging operation including a shift operation applied to selected successive pixels

A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect.The filtering unit is configured to select at least one candidate pixel to be associated with an averaging operation, and compare a difference between the pixel to be filtered and the candidate pixel with a threshold. The filtering unit is configured to perform the averaging operation with respect to the pixel to be filtered based on the candidate pixel if the threshold is greater than the difference.

DECODING APPARATUS INCLUDING A FILTERING UNIT CONFIGURED TO FILTER AN IMAGE BY PERFORMING AN AVERAGING OPERATION SELECTIVELY BASED ON AT LEAST ONE CANDIDATE PIXEL ASSOCIATED WITH A PIXEL TO BE FILTERED

A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect.In one embodiment, the apparatus includes a filtering unit configured to filter a pixel of an image. The filtering unit is configured to select at least four pixels of successive pixels according to a position of a pixel to be filtered. The selected at least four pixels include the pixel to be filtered. The filtering unit is configured to perform at least one comparison. The comparison compares a determined value and a threshold. The threshold is based on a quantization information of at least a portion of the image including the pixel to be filtered, the determined value is based on a difference value, and the difference value is based on two of the successive pixels.

Decoding apparatus including a filtering unit configured to filter an image based on comparison of difference between selected pixels

A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect.In the method, a pixel of an image is filtered according to a filtering methodology. The filtering methodology includes selecting at least one candidate pixel to be associated with an averaging operation, and comparing a difference between the pixel to be filtered and the candidate pixel with a threshold. The filtering methodology further includes performing the averaging operation with respect to the pixel to be filtered based on the candidate pixel if the threshold is greater than the difference.

Method of filtering an image by performing an averaging operation selectively based on at least one candidate pixel associated with a pixel to be filtered

A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect.In one embodiment, a pixel of an image is filtered according to a filtering methodology. The filtering methodology includes selecting at least four pixels of successive pixels according to a position of a pixel to be filtered. The selected at least four pixels include the pixel to be filtered, at least one of the selected at least four pixels is in a first block, and three of the selected at least four pixels are in a second block adjacent to the first block. The filtering methodology includes at least one comparison. The comparison compares a determined value and a threshold. The threshold is based on a quantization information of at least a portion of the image including the pixel to be filtered, the determined value is based on a difference value, and the difference value is based on two of the successive pixels.

Growing community of inventors

Kang-wong-do, South Korea

Jae Min Kim