公开(公告)号：US20230043350A1

公开(公告)日：2023-02-09

申请号：US17865551

申请日：2022-07-15

Applicant: IDEAHUB INC.

Inventor： Yoonsik CHOE ,  Jang Won CHOI

IPC: H04N19/593 ,  H04N19/117 ,  H04N19/82 ,  H04N19/186 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184

Abstract: 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.

公开(公告)号：US20250039442A1

公开(公告)日：2025-01-30

申请号：US18911731

申请日：2024-10-10

Applicant: IDEAHUB INC.

Inventor： Yoonsik CHOE ,  Jang Won CHOI

IPC: H04N19/593 ,  H04N19/11 ,  H04N19/117 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184 ,  H04N19/186 ,  H04N19/82

Abstract: 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.

公开(公告)号：US20230353761A1

公开(公告)日：2023-11-02

申请号：US18337356

申请日：2023-06-19

Applicant: IDEAHUB INC.

Inventor： Yoon Sik CHOE ,  Jang Won CHOI

IPC: H04N19/186 ,  H04N19/80 ,  H04N19/117

CPC classification number: H04N19/186 ,  H04N19/80 ,  H04N19/117 ,  H04N19/11

Abstract: 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.

公开(公告)号：US20220217365A1

公开(公告)日：2022-07-07

申请号：US17576610

申请日：2022-01-14

Applicant: IDEAHUB INC.

Inventor： Yoon Sik CHOE ,  Jang Won CHOI

IPC: H04N19/186 ,  H04N19/80 ,  H04N19/117

Abstract: 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.