MX2020002050A - Tecnicas para sintetizar grano de pelicula. - Google Patents

Tecnicas para sintetizar grano de pelicula.

Info

Publication number
MX2020002050A
MX2020002050A MX2020002050A MX2020002050A MX2020002050A MX 2020002050 A MX2020002050 A MX 2020002050A MX 2020002050 A MX2020002050 A MX 2020002050A MX 2020002050 A MX2020002050 A MX 2020002050A MX 2020002050 A MX2020002050 A MX 2020002050A
Authority
MX
Mexico
Prior art keywords
video content
film grain
brightness component
reconstructed
synthesized film
Prior art date
Application number
MX2020002050A
Other languages
English (en)
Inventor
Andrey Norkin
Original Assignee
Netflix Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Netflix Inc filed Critical Netflix Inc
Publication of MX2020002050A publication Critical patent/MX2020002050A/es

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/70—Denoising; Smoothing
    • 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
    • G06T3/20—Linear translation of whole images or parts thereof, e.g. panning
    • 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
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/90—Determination of colour characteristics
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20204—Removing film grain; Adding simulated film grain
    • 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

En diversas modalidades, una aplicación de reconstrucción genera contenido de video reconstruido que incluye grano de película sintetizado. La aplicación de reconstrucción realiza operaciones de escalado en el primer ruido unitario basándose en una función de escalado lineal por partes y el componente de brillo del contenido de video decodificado para generar un componente de brillo del grano de película sintetizado. La aplicación de reconstrucción genera un componente de brillo del contenido de video reconstruido basándose en el componente de brillo del grano de película sintetizado y el componente de brillo del contenido de video decodificado. Finalmente, la aplicación reconstruida realiza operaciones relacionadas con guardar el contenido de video reconstruido en un archivo y/o además procesar el contenido de video reconstruido. Ventajosamente, el grano de película sintetizado representa de manera confiable el grano de película incluido en el contenido de video de origen del que se derivó el contenido de video decodificado.
MX2020002050A 2017-08-22 2018-08-22 Tecnicas para sintetizar grano de pelicula. MX2020002050A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201762548885P 2017-08-22 2017-08-22
US16/108,069 US10839489B2 (en) 2017-08-22 2018-08-21 Techniques for synthesizing film grain
PCT/US2018/047596 WO2019040663A1 (en) 2017-08-22 2018-08-22 TECHNIQUES FOR SYNTHESIS OF FILM GRAIN

Publications (1)

Publication Number Publication Date
MX2020002050A true MX2020002050A (es) 2020-09-17

Family

ID=65436159

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2020002050A MX2020002050A (es) 2017-08-22 2018-08-22 Tecnicas para sintetizar grano de pelicula.

Country Status (7)

Country Link
US (1) US10839489B2 (es)
EP (1) EP3673658A1 (es)
AU (2) AU2018322154B2 (es)
BR (1) BR112020003489A2 (es)
CA (1) CA3072753C (es)
MX (1) MX2020002050A (es)
WO (1) WO2019040663A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4078950A1 (en) * 2019-12-19 2022-10-26 Telefonaktiebolaget Lm Ericsson (Publ) Film grain process
EP3907991A1 (en) 2020-05-04 2021-11-10 Ateme Method for image processing and apparatus for implementing the same
CN113109240B (zh) * 2021-04-08 2022-09-09 国家粮食和物资储备局标准质量中心 一种计算机实施的粮食不完善粒测定方法和系统
US11765372B1 (en) * 2021-06-21 2023-09-19 Amazon Technologies, Inc. Efficient coefficient film grain synthesis for codecs without film grain synthesis

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SI3457359T1 (sl) 2003-05-15 2020-04-30 Dolby International Ab Postopek in naprava za predstavitev zrnatosti slike z enim ali več parametri
JP2005080301A (ja) * 2003-09-01 2005-03-24 Matsushita Electric Ind Co Ltd 動画像符号化方法および動画像復号化方法
US9648325B2 (en) * 2007-06-30 2017-05-09 Microsoft Technology Licensing, Llc Video decoding implementations for a graphics processing unit

Also Published As

Publication number Publication date
CA3072753C (en) 2023-05-16
AU2018322154B2 (en) 2020-12-10
CA3072753A1 (en) 2019-02-28
US20190066272A1 (en) 2019-02-28
AU2018322154A1 (en) 2020-02-27
EP3673658A1 (en) 2020-07-01
US10839489B2 (en) 2020-11-17
WO2019040663A1 (en) 2019-02-28
BR112020003489A2 (pt) 2020-08-25
AU2021201476A1 (en) 2021-03-25

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