BR112017017434A2 - pré-processamento e codificação de pixel - Google Patents
pré-processamento e codificação de pixelInfo
- Publication number
- BR112017017434A2 BR112017017434A2 BR112017017434A BR112017017434A BR112017017434A2 BR 112017017434 A2 BR112017017434 A2 BR 112017017434A2 BR 112017017434 A BR112017017434 A BR 112017017434A BR 112017017434 A BR112017017434 A BR 112017017434A BR 112017017434 A2 BR112017017434 A2 BR 112017017434A2
- Authority
- BR
- Brazil
- Prior art keywords
- color space
- pixel
- nonlinear
- component value
- preprocessing
- Prior art date
Links
- 238000007781 pre-processing Methods 0.000 title abstract 3
- 241000023320 Luma <angiosperm> Species 0.000 abstract 1
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/67—Circuits for processing colour signals for matrixing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/182—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a pixel
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
- H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/643—Hue control means, e.g. flesh tone control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Processing Of Color Television Signals (AREA)
- Color Image Communication Systems (AREA)
- Color Television Systems (AREA)
- Image Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Abstract
um pré-processamento de pixel compreende obter um valor de componente de luminância linear original de um pixel em uma imagem em um terceiro espaço de cor determinado baseado em uma cor linear do pixel em um primeiro espaço de cor. um valor de componente de luma não linear em um segundo espaço de cor é derivado para o pixel baseado em um primeiro valor de componente de croma não linear no segundo espaço de cor, um segundo valor de componente de croma não linear no segundo espaço de cor e o valor de componente de luminância linear original no terceiro espaço de cor. o pré-processamento reduz artefatos de luminância que caso contrário podem ocorrer quando subamostragem de croma é usada em combinação com uma função de transferência não linear.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562115679P | 2015-02-13 | 2015-02-13 | |
| US62/115,679 | 2015-02-13 | ||
| PCT/SE2016/050058 WO2016130066A1 (en) | 2015-02-13 | 2016-01-28 | Pixel pre-processing and encoding |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| BR112017017434A2 true BR112017017434A2 (pt) | 2018-04-03 |
| BR112017017434A8 BR112017017434A8 (pt) | 2022-09-06 |
| BR112017017434B1 BR112017017434B1 (pt) | 2023-08-15 |
Family
ID=
Also Published As
| Publication number | Publication date |
|---|---|
| EP3257042A1 (en) | 2017-12-20 |
| US10397536B2 (en) | 2019-08-27 |
| JP2018511210A (ja) | 2018-04-19 |
| EP3257042B1 (en) | 2022-06-22 |
| RU2679239C1 (ru) | 2019-02-06 |
| KR20170103937A (ko) | 2017-09-13 |
| MY177576A (en) | 2020-09-21 |
| ES2925352T3 (es) | 2022-10-17 |
| BR112017017434A8 (pt) | 2022-09-06 |
| WO2016130066A1 (en) | 2016-08-18 |
| DK3257042T3 (da) | 2022-08-01 |
| US20160241885A1 (en) | 2016-08-18 |
| US20170208310A1 (en) | 2017-07-20 |
| KR102033229B1 (ko) | 2019-10-16 |
| CN107210026B (zh) | 2020-02-14 |
| JP6516851B2 (ja) | 2019-05-22 |
| CN107210026A (zh) | 2017-09-26 |
| EP3257042A4 (en) | 2018-02-14 |
| US9654803B2 (en) | 2017-05-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B06U | Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette] | ||
| B15K | Others concerning applications: alteration of classification |
Free format text: AS CLASSIFICACOES ANTERIORES ERAM: G09G 5/02 , H04N 1/64 Ipc: H04N 19/59 (2006.01), H04N 19/86 (2006.01), H04N 1 |
|
| B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
| B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 28/01/2016, OBSERVADAS AS CONDICOES LEGAIS |