CL2020003084A1 - Transformada espacialmente variable con tipo de transformada adaptativa - Google Patents

Transformada espacialmente variable con tipo de transformada adaptativa

Info

Publication number
CL2020003084A1
CL2020003084A1 CL2020003084A CL2020003084A CL2020003084A1 CL 2020003084 A1 CL2020003084 A1 CL 2020003084A1 CL 2020003084 A CL2020003084 A CL 2020003084A CL 2020003084 A CL2020003084 A CL 2020003084A CL 2020003084 A1 CL2020003084 A1 CL 2020003084A1
Authority
CL
Chile
Prior art keywords
transform
block
type
svt
adaptive
Prior art date
Application number
CL2020003084A
Other languages
English (en)
Inventor
Jianle Chen
Yin Zhao
Haitao Yang
Original Assignee
Huawei Tech Co Ltd
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 Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of CL2020003084A1 publication Critical patent/CL2020003084A1/es

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Classifications

    • 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
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • 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
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • 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
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/167—Position within a video image, e.g. region of interest [ROI]
    • 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
    • H04N19/17—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 an image region, e.g. an object
    • H04N19/176—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 an image region, e.g. an object the region being a block, e.g. a macroblock
    • 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
    • H04N19/18—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 set of transform coefficients
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • 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
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

La presente descripción describe un método y aparato de decodificación de video que emplea SVT con tipo de transformada adaptativa. El método comprende: determinar el uso de SVT-V o SVT-H para un bloque residual; determinar una posición de bloque de transformada de un bloque de transformada del bloque residual; determinar un tipo de transformada del bloque de <br /> transformada, en donde el tipo de transformada indica una transformada horizontal y una transformada vertical para el bloque de transformada, en donde al menos una de la transformada horizontal y la transformada vertical es DST-7; y reconstruir el bloque residual con base en el tipo de transformada, la posición de bloque de transformada y los coeficientes de transformada del bloque de transformada. Al emplear la solución de la presente descripción, se puede mejorar la calidad de decodificación.
CL2020003084A 2018-05-31 2020-11-27 Transformada espacialmente variable con tipo de transformada adaptativa CL2020003084A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201862678738P 2018-05-31 2018-05-31

Publications (1)

Publication Number Publication Date
CL2020003084A1 true CL2020003084A1 (es) 2021-04-23

Family

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Family Applications (1)

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CL2020003084A CL2020003084A1 (es) 2018-05-31 2020-11-27 Transformada espacialmente variable con tipo de transformada adaptativa

Country Status (19)

Country Link
US (3) US11252426B2 (es)
EP (2) EP4250730A3 (es)
JP (2) JP7160948B2 (es)
KR (3) KR102532021B1 (es)
CN (1) CN111989913A (es)
AU (1) AU2019277966A1 (es)
BR (1) BR112020024218B1 (es)
CA (1) CA3099323A1 (es)
CL (1) CL2020003084A1 (es)
DK (1) DK3782361T3 (es)
ES (1) ES2962364T3 (es)
HU (1) HUE063475T2 (es)
IL (1) IL279095A (es)
NZ (1) NZ769880A (es)
PL (1) PL3782361T3 (es)
PT (1) PT3782361T (es)
UA (1) UA127899C2 (es)
WO (1) WO2019228332A1 (es)
ZA (1) ZA202006882B (es)

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WO2020236719A2 (en) 2019-05-19 2020-11-26 Bytedance Inc. Transform design for large blocks in video coding
CN112969067B (zh) * 2021-05-18 2021-08-03 浙江华创视讯科技有限公司 一种视频编码方法、装置、设备和可读存储介质
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NZ769880A (en) 2022-04-29
CA3099323A1 (en) 2019-12-05
DK3782361T3 (da) 2023-10-16
AU2019277966A1 (en) 2020-11-26
KR102656221B1 (ko) 2024-04-08
BR112020024218A2 (pt) 2021-02-17
PT3782361T (pt) 2023-11-17
EP3782361A4 (en) 2021-06-02
KR102532021B1 (ko) 2023-05-12
JP2022189870A (ja) 2022-12-22
CN111989913A (zh) 2020-11-24
PL3782361T3 (pl) 2023-12-27
EP3782361B1 (en) 2023-09-20
US20210084319A1 (en) 2021-03-18
ES2962364T3 (es) 2024-03-18
US11252426B2 (en) 2022-02-15
EP4250730A2 (en) 2023-09-27
US20230188739A1 (en) 2023-06-15
JP7160948B2 (ja) 2022-10-25
EP4250730A3 (en) 2024-01-10
KR20240051294A (ko) 2024-04-19
IL279095A (en) 2021-01-31
KR20210002630A (ko) 2021-01-08
US20220116638A1 (en) 2022-04-14
KR20230069262A (ko) 2023-05-18
JP2021525484A (ja) 2021-09-24
ZA202006882B (en) 2022-07-27
US11601663B2 (en) 2023-03-07
WO2019228332A1 (en) 2019-12-05
HUE063475T2 (hu) 2024-01-28
BR112020024218B1 (pt) 2023-10-31
EP3782361A1 (en) 2021-02-24
UA127899C2 (uk) 2024-02-07
BR112020024218A8 (pt) 2023-02-07

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