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1.发明授权公开(公告)号：US10922798B2
公开(公告)日：2021-02-16
申请号：US16121057
申请日：2018-09-04
Applicant: Samsung Electronics Co., Ltd.
Inventor： Il-Jun Ahn , Ki-Heum Cho , Yong-Sup Park , Jae-Yeon Park , Hee-Seok Oh , Tammy Lee , Min-Su Cheon
Abstract: An image processing apparatus is provided. The image processing apparatus according to an exemplary embodiment includes a communicator configured to receive an image, and a processor configured to generate a first image obtained by performing image processing on the received image by using a parameter for image processing, generate a second image obtained by reducing the first image at a predetermined ratio, and extract respective visual features from the first image and the second image, wherein the processor is further configured to adjust the parameter to allow a difference between the visual feature of the first image and the visual feature of the second image to be within a predetermined range.
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公开(公告)号：US10038918B2
公开(公告)日：2018-07-31
申请号：US15700668
申请日：2017-09-11
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yoon-Mi Hong , Woo-Jin Han , Min-Su Cheon , Jianle Chen
IPC: H04N19/60 , H04N19/126 , G06F17/14 , H04N19/176 , H04N19/625 , G06F7/32
CPC classification number: H04N19/60 , G06F17/147 , H04N19/126 , H04N19/176 , H04N19/625
Abstract: A video encoding method, a video encoding apparatus, a video decoding method, and a video decoding apparatus are provided. The video encoding method includes producing a fast transform matrix based on a transform matrix which is used for frequency transformation on a block which has a predetermined size; producing a transformed block by transforming the block having the predetermined size by using the fast transform matrix; and performing scaling with respect to the transformed block in order to correct a difference between the transform matrix used for the frequency transformation and the fast transform matrix.
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公开(公告)号：US10455252B2
公开(公告)日：2019-10-22
申请号：US16025391
申请日：2018-07-02
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yoon-Mi Hong , Woo-Jin Han , Min-Su Cheon , Jianle Chen
IPC: H04N19/60 , G06F17/14 , H04N19/625 , H04N19/126 , H04N19/176
Abstract: A video encoding method, a video encoding apparatus, a video decoding method, and a video decoding apparatus are provided. The video encoding method includes producing a fast transform matrix based on a transform matrix which is used for frequency transformation on a block which has a predetermined size; producing a transformed block by transforming the block having the predetermined size by using the fast transform matrix; and performing scaling with respect to the transformed block in order to correct a difference between the transform matrix used for the frequency transformation and the fast transform matrix.
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公开(公告)号：US09788013B2
公开(公告)日：2017-10-10
申请号：US15149931
申请日：2016-05-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yoon-Mi Hong , Woo-Jin Han , Min-Su Cheon , Jianle Chen
IPC: H04N19/60 , G06F17/14 , H04N19/625 , H04N19/126 , H04N19/176
CPC classification number: H04N19/60 , G06F17/147 , H04N19/126 , H04N19/176 , H04N19/625
Abstract: A video encoding method, a video encoding apparatus, a video decoding method, and a video decoding apparatus are provided. The video encoding method includes producing a fast transform matrix based on a transform matrix which is used for frequency transformation on a block which has a predetermined size; producing a transformed block by transforming the block having the predetermined size by using the fast transform matrix; and performing scaling with respect to the transformed block in order to correct a difference between the transform matrix used for the frequency transformation and the fast transform matrix.
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