Patents Assigned to IDEAHUB
-
Publication number: 20230353761Abstract: Disclosed are methods, apparatuses, and systems for encoding and decoding an image. The present invention provides an intra prediction unit receives an input image, removes high frequency ingredients by low pass filtering an encoded luma pixel value in the input image during intra prediction, and generates a prediction block by predicting a chroma pixel value by using a low pass filter (LPF) LM chroma mode for applying an LM chroma mode, which is an extended chroma mode technique for generating a prediction block by predicting the chroma pixel value by applying a correlation between color planes to the luma pixel value having removed therefrom the high frequency ingredients.Type: ApplicationFiled: June 19, 2023Publication date: November 2, 2023Applicant: IDEAHUB INC.Inventors: Yoon Sik CHOE, Jang Won CHOI
-
Patent number: 11683506Abstract: Disclosed are methods, apparatuses, and systems for encoding and decoding an image. The present invention provides an intra prediction unit receives an input image, removes high frequency ingredients by low pass filtering an encoded luma pixel value in the input image during intra prediction, and generates a prediction block by predicting a chroma pixel value by using a low pass filter (LPF) LM chroma mode for applying an LM chroma mode, which is an extended chroma mode technique for generating a prediction block by predicting the chroma pixel value by applying a correlation between color planes to the luma pixel value having removed therefrom the high frequency ingredients.Type: GrantFiled: January 14, 2022Date of Patent: June 20, 2023Assignee: IDEAHUB INC.Inventors: Yoon Sik Choe, Jang Won Choi
-
Publication number: 20230043350Abstract: Disclosed are methods, apparatuses, and systems for encoding and decoding an image. The present invention provides an intra prediction unit that receives an input image, calculates a correlation between a Luma area block and Chroma area block in the input image in intra prediction, removes high frequency ingredients by low-pass filtering an encoded luma pixel based on the calculated correlation, and generates a prediction block by applying an LM chroma mode, which is an extended chroma mode technique, to the luma pixel removed therefrom the high frequency ingredients.Type: ApplicationFiled: July 15, 2022Publication date: February 9, 2023Applicant: IDEAHUB INC.Inventors: Yoonsik CHOE, Jang Won CHOI
-
Patent number: 11425419Abstract: Disclosed are methods, apparatuses, and systems for encoding and decoding an image. The present invention provides an intra prediction unit that receives an input image, calculates a correlation between a Luma area block and Chroma area block in the input image in intra prediction, removes high frequency ingredients by low-pass filtering an encoded luma pixel based on the calculated correlation, and generates a prediction block by applying an LM chroma mode, which is an extended chroma mode technique, to the luma pixel removed therefrom the high frequency ingredients.Type: GrantFiled: August 11, 2020Date of Patent: August 23, 2022Assignee: IDEAHUB INC.Inventors: Yoonsik Choe, Jang Won Choi
-
Publication number: 20220217365Abstract: Disclosed are methods, apparatuses, and systems for encoding and decoding an image. The present invention provides an intra prediction unit receives an input image, removes high frequency ingredients by low pass filtering an encoded luma pixel value in the input image during intra prediction, and generates a prediction block by predicting a chroma pixel value by using a low pass filter (LPF) LM chroma mode for applying an LM chroma mode, which is an extended chroma mode technique for generating a prediction block by predicting the chroma pixel value by applying a correlation between color planes to the luma pixel value having removed therefrom the high frequency ingredients.Type: ApplicationFiled: January 14, 2022Publication date: July 7, 2022Applicant: IDEAHUB INC.Inventors: Yoon Sik CHOE, Jang Won CHOI
-
Patent number: 11252421Abstract: Disclosed are methods, apparatuses, and systems for encoding and decoding an image. The present invention provides an intra prediction unit receives an input image, removes high frequency ingredients by low pass filtering an encoded luma pixel value in the input image during intra prediction, and generates a prediction block by predicting a chroma pixel value by using a low pass filter (LPF) LM chroma mode for applying an LM chroma mode, which is an extended chroma mode technique for generating a prediction block by predicting the chroma pixel value by applying a correlation between color planes to the luma pixel value having removed therefrom the high frequency ingredients.Type: GrantFiled: December 30, 2020Date of Patent: February 15, 2022Assignee: IDEAHUB INC.Inventors: Yoon Sik Choe, Jang Won Choi
-
Patent number: 11122274Abstract: Provided are methods and apparatuses for improving compression efficiency in directional intra-prediction. A video encoding apparatus, which does not need to record intra mode information, includes a mode selector that selects one from among a plurality of intra modes on the basis of a directionality of at least one neighboring block that has already been reconstructed before a current block is reconstructed, an intra predictor that obtains a prediction block of the current block from the at least one neighboring block according to the directionality of the selected mode, and obtains a residual block by subtracting the prediction block from the current block, and a unit for encoding the obtained residual block.Type: GrantFiled: May 8, 2019Date of Patent: September 14, 2021Assignee: Ideahub Inc.Inventors: Je Chang Jeong, Soon Jong Jin, Sang Jun Park, Hyuk Lee
-
Patent number: 11122275Abstract: Provided are methods and apparatuses for improving compression efficiency in directional intra-prediction. A video encoding apparatus, which does not need to record intra mode information, includes a mode selector that selects one from among a plurality of intra modes on the basis of a directionality of at least one neighboring block that has already been reconstructed before a current block is reconstructed, an intra predictor that obtains a prediction block of the current block from the at least one neighboring block according to the directionality of the selected mode, and obtains a residual block by subtracting the prediction block from the current block, and a unit for encoding the obtained residual block.Type: GrantFiled: May 8, 2019Date of Patent: September 14, 2021Assignee: Ideahub Inc.Inventors: Je Chang Jeong, Soon Jong Jin, Sang Jun Park, Hyuk Lee
-
Patent number: 11082470Abstract: A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of media content are provided. The media content may include a sequence of one or more periods. Each of the periods may include one or more representations. The metadata may include information used to describe a relationship between the representations, and include information for terminals having different display bit depth.Type: GrantFiled: April 29, 2020Date of Patent: August 3, 2021Assignee: IDEAHUB, INC.Inventors: Truong Cong Thang, Jin Young Lee
-
Patent number: 10826956Abstract: A method of receiving content in a client is provided. The method may include receiving, from a server, a spatial set identifier (ID) corresponding to a tile group including at least one tile, sending, to the server, a request for first content corresponding to metadata, and receiving, from the server, the first content corresponding to the request.Type: GrantFiled: October 22, 2018Date of Patent: November 3, 2020Assignee: IDEAHUB INC.Inventors: Seong Yong Lim, Joo Myoung Seok, Sang Woo Ahn, Yong Ju Cho, Ji Hun Cha
-
Patent number: 10819815Abstract: A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of content are provided. The metadata may include a minBufferTime attribute indicating a minimum amount of initially buffered media content. A terminal may receive content from a server before playback of the content, and may buffer the content by at least the minimum amount. The metadata may include a range attribute that designates a range of a target indicated by a Uniform Resource Locator (URL). The terminal may receive bytes designated by the range attribute from the URL, and may play back the content using the received bytes.Type: GrantFiled: November 2, 2018Date of Patent: October 27, 2020Assignee: IDEAHUB INC.Inventors: Truong Cong Thang, Jin Young Lee, Seong Jun Bae, Jung Won Kang, Soon Heung Jung, Sang Taick Park, Won Ryu, Jae Gon Kim
-
Patent number: 10812553Abstract: A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of content are provided. The metadata of the content may be efficiently divided for a purpose of use of a terminal based on general media information or specific media information, and may be transmitted to the terminal. A group may include one or more representations of content. The metadata may include a group element, and the group element may provide a summary of attributes of one or more representations included in the group.Type: GrantFiled: May 23, 2019Date of Patent: October 20, 2020Assignee: IDEAHUB INC.Inventors: Truong Cong Thang, Jin Young Lee, Seong Jun Bae, Jung Won Kang, Soon Heung Jung, Sang Taick Park, Won Ryu
-
Patent number: 10645136Abstract: A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of media content are provided. The media content may include a sequence of one or more periods. Each of the periods may include one or more representations. The metadata may include information used to describe a relationship between the representations, and include information for terminals having different display bit depth.Type: GrantFiled: April 17, 2019Date of Patent: May 5, 2020Assignee: IDEAHUB, INC.Inventors: Truong Cong Thang, Jin Young Lee
-
Patent number: 10623749Abstract: Provided are methods and apparatuses for improving compression efficiency in directional intra-prediction. A video encoding apparatus, which does not need to record intra mode information, includes a mode selector that selects one from among a plurality of intra modes on the basis of a directionality of at least one neighboring block that has already been reconstructed before a current block is reconstructed, an intra predictor that obtains a prediction block of the current block from the at least one neighboring block according to the directionality of the selected mode, and obtains a residual block by subtracting the prediction block from the current block, and a unit for encoding the obtained residual block.Type: GrantFiled: August 5, 2019Date of Patent: April 14, 2020Assignee: Ideahub Inc.Inventors: Je Chang Jeong, Soon Jong Jin, Sang Jun Park, Hyuk Lee
-
Patent number: 10623751Abstract: Provided are methods and apparatuses for improving compression efficiency in directional intra-prediction. A video encoding apparatus, which does not need to record intra mode information, includes a mode selector that selects one from among a plurality of intra modes on the basis of a directionality of at least one neighboring block that has already been reconstructed before a current block is reconstructed, an intra predictor that obtains a prediction block of the current block from the at least one neighboring block according to the directionality of the selected mode, and obtains a residual block by subtracting the prediction block from the current block, and a unit for encoding the obtained residual block.Type: GrantFiled: August 5, 2019Date of Patent: April 14, 2020Assignee: Ideahub Inc.Inventors: Je Chang Jeong, Soon Jong Jin, Sang Jun Park, Hyuk Lee
-
Patent number: 10623750Abstract: Provided are methods and apparatuses for improving compression efficiency in directional intra-prediction. A video encoding apparatus, which does not need to record intra mode information, includes a mode selector that selects one from among a plurality of intra modes on the basis of a directionality of at least one neighboring block that has already been reconstructed before a current block is reconstructed, an intra predictor that obtains a prediction block of the current block from the at least one neighboring block according to the directionality of the selected mode, and obtains a residual block by subtracting the prediction block from the current block, and a unit for encoding the obtained residual block.Type: GrantFiled: August 5, 2019Date of Patent: April 14, 2020Assignee: Ideahub Inc.Inventors: Je Chang Jeong, Soon Jong Jin, Sang Jun Park, Hyuk Lee
-
Publication number: 20190245904Abstract: A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of media content are provided. The media content may include a sequence of one or more periods. Each of the periods may include one or more representations. The metadata may include information used to describe a relationship between the representations, and include information for terminals having different display bit depth.Type: ApplicationFiled: April 17, 2019Publication date: August 8, 2019Applicant: IDEAHUBInventors: Truong Cong THANG, Jin Young LEE
-
Patent number: 10375373Abstract: Disclosed is a method of encoding three-dimensional (3D) content. The method of encoding 3D content according to an embodiment may include setting a dependency between texture information and depth information of the 3D content, and generating a bitstream comprising the dependency.Type: GrantFiled: May 11, 2018Date of Patent: August 6, 2019Assignee: IdeahubInventors: Jin Young Lee, Nam Ho Hur
-
Patent number: 10362130Abstract: A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of content are provided. The metadata may include a minBufferTime attribute indicating a minimum amount of initially buffered media content. A terminal may receive content from a server before playback of the content, and may buffer the content by at least the minimum amount. The metadata may include a range attribute that designates a range of a target indicated by a Uniform Resource Locator (URL). The terminal may receive bytes designated by the range attribute from the URL, and may play back the content using the received bytes.Type: GrantFiled: March 14, 2016Date of Patent: July 23, 2019Assignee: IDEAHUB INC.Inventors: Truong Cong Thang, Jin Young Lee, Seong Jun Bae, Jung Won Kang, Soon Heung Jung, Sang Taick Park, Won Ryu, Jae Gon Kim
-
Patent number: 10356145Abstract: A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of content are provided. The metadata of the content may be efficiently divided for a purpose of use of a terminal based on general media information or specific media information, and may be transmitted to the terminal. A group may include one or more representations of content. The metadata may include a group element, and the group element may provide a summary of attributes of one or more representations included in the group.Type: GrantFiled: December 18, 2018Date of Patent: July 16, 2019Assignee: IDEAHUB, INC.Inventors: Truong Cong Thang, Jin Young Lee, Seong Jun Bae, Jung Won Kang, Soon Heung Jung, Sang Taick Park, Won Ryu