HRP20210129T1 - Aparat za dekodiranje i metoda dekodiranja - Google Patents
Aparat za dekodiranje i metoda dekodiranja Download PDFInfo
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- 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
- H04N19/46—Embedding additional information in the video signal during the compression process
- H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
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- H—ELECTRICITY
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- 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
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T9/00—Image coding
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- 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
- H04N19/103—Selection of coding mode or of prediction mode
- H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
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- 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
- H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
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- 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
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- 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
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- 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
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
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- 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
- H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
- H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
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- 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
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- 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
- H04N19/45—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder performing compensation of the inverse transform mismatch, e.g. Inverse Discrete Cosine Transform [IDCT] mismatch
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- 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
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
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- 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
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Claims (14)
1. Elektronski aparat (800), koji sadrži modul (801) dekodera konfiguriran da:
dekodira denominator za faktor ponderiranja lumina ciljne slike iz kodiranih podataka koji sadrže kodirani tok bita video zapisa koristeći ponderirano predviđanje, pri čemu denominator za faktor ponderiranja lumina predstavlja točnost fiksne točke faktora ponderiranja lumina;
izvodi prvu referentnu vrijednost faktora ponderiranja lumina prema denominatoru faktora ponderiranja lumina, pri čemu je prva referentna vrijednost jednaka vrijednosti dobivenoj odstupanjem ulijevo od „1“ za najmanje jednu binarnu znamenku naznačenu denominatorom za faktor ponderiranja lumina;
dekodira prvu vrijednost razlike faktora ponderiranja lumina iz kodiranih podataka, pri čemu je prva vrijednost razlike jednaka vrijednosti razlike između lumina faktora ponderiranja i prve referentne vrijednosti;
izvede faktor ponderiranja lumina dodavanjem prve referentne vrijednosti i prve vrijednosti razlike;
dekodira vrijednost razlike denominatora za faktor ponderiranja kroma iz kodiranih podataka, pri čemu denominator za faktor ponderiranja kroma predstavlja točnost fiksne točke faktora ponderiranja kroma, a vrijednost razlike denominatora za faktor ponderiranja kroma jednaka je vrijednost razlike između denominatora za faktor ponderiranja lumina i denominatora za faktor ponderiranja kroma;
izvodi denominator za faktor ponderiranja kroma dodavanjem vrijednosti razlike denominatora za faktor ponderiranja kroma i denominatora za faktor ponderiranja lumina;
izvodi referentnu vrijednost faktora ponderiranja kroma prema denominatoru za faktor ponderiranja kroma, pri čemu je referentna vrijednost faktora ponderiranja kroma jednaka vrijednosti dobivenoj odstupanjem ulijevo od „1“ za najmanje jednu binarnu znamenku navedenu denominatorom za faktor ponderiranja kroma;
dekodira vrijednost razlike faktora ponderiranja kroma iz kodiranih podataka, pri čemu je vrijednost razlike faktora ponderiranja kroma jednaka vrijednosti razlike između faktora ponderiranja kroma i referentne vrijednosti faktora ponderiranja kroma;
izvodi faktor ponderiranja kroma dodavanjem referentne vrijednosti faktora ponderiranja kroma i vrijednosti razlike faktora ponderiranja kroma;
izvede referentnu vrijednost odstupanja kroma ciljne slike oduzimanjem vrijednosti dobivene i množenjem srednje vrijednosti maksimalne vrijednosti piksela za hrom sa faktorom ponderiranja kroma i pomakom udesno za najmanje jednu binarnu znamenku naznačenu denominatorom za faktor ponderiranja kroma, od srednje vrijednosti;
dekodira vrijednost razlike odstupanja kroma iz kodiranih podataka, pri čemu je vrijednost razlike odstupanja kroma jednaka vrijednosti razlike između odstupanja kroma i referentne vrijednosti odstupanja kroma;
izvede odstupanje kroma dodavanjem referentne vrijednosti odstupanja kroma i vrijednosti razlike odstupanja kroma.
2. Elektronski aparat (800) prema patentnom zahtjevu 1, pri čemu
modul (801, 805) dekodera je konfiguriran dalje da:
dekodira lumina odstupanje ciljne slike iz kodiranih podataka;
izvodi predviđenu vrijednost lumina korištenjem barem množenja lumina komponente referentne slike sa faktorom ponderiranja lumina, pomicanja udesno barem za jednu binarnu znamenku navedenu denominatorom za faktor ponderiranja lumina i dodavanja odstupanja lumina; i
izvede predviđenu vrijednost kroma korištenjem barem množenja komponente kroma referentne slike sa faktorom ponderiranja kroma, pomicanja udesno za najmanje jednu binarnu znamenku navedenu denominatorom za faktor ponderiranja kroma, i dodavanja odstupanja kroma.
3. Elektronski aparat (800) prema patentnom zahtjevu 2, pri čemu
modul (801, 802, 803, 804) dekodera je konfiguriran dalje da:
dekodira koeficijent transformacije iz kodiranih podataka;
izvodi vrijednost greške u predviđanju korištenjem barem inverzne transformacije koeficijenta transformacije; i
izvodi dekodiranu sliku korištenjem barem vrijednosti greške u predviđanju, predviđene vrijednosti lumina i predviđene vrijednosti kroma.
4. Elektronski aparat (800) prema patentnom zahtjevu 2, pri čemu
modul (801, 805) dekodera je konfiguriran dalje da:
dekodira vektor kretanja iz kodiranih podataka; i
odredi referentnu sliku na osnovu vektora kretanja.
5. Elektronski aparat (800) prema bilo kojem od patentnih zahtjeva 1 do 4, pri čemu
vrijednost dobivena pomicanjem ulijevo od „1“ za binarnu znamenku preciziranu denominatorom za faktor ponderiranja lumina je jednaka specifičnom faktoru ponderiranja lumina koji se koristi kada ciljna slika nije imala razlike u lumina od referentne slike.
6. Elektronski aparat (800) prema bilo kojem od patentnih zahtjeva 1 do 5, koji dalje sadrži:
modul prijemnika konfiguriran za prijem kodiranih podataka preko komunikacionog linka; i
međuspremnik konfiguriran za privremeno čuvanje barem dijela kodiranih podataka, pri čemu je modul (801) dekodera dalje konfiguriran da:
pročita barem dio kodiranih podataka iz međuspremnika; i
dekodira parametre u kodiranim podacima, i
modul (801) dekodera je Centralna Procesorska Jedinica (CPU).
7. Elektronski aparat (800) prema bilo kojem od zahtjeva 1 do 5, koji dalje sadrži:
modul prijemnika konfiguriran za prijem kodiranih podataka preko komunikacionog linka; i
međuspremnik konfiguriran za privremeno čuvanje barem dijela kodiranih podataka, pri čemu
modul (801) dekodera je dalje konfiguriran da:
pročita bar dio kodiranih podataka iz međuspremnika; i
dekodira parametre u kodiranim podacima, i
modul (801) dekodera je Procesor Digitalnih Signala (DSP) ili Na Licu Mjesta Programabilan Niz Izlaza (FPGA).
8. Metoda dekodiranja, koja obuhvaća:
dekodiranje denominatora za faktor ponderiranja lumina ciljne slike iz kodiranih podataka koji sadrže kodirani toka bita video zapisa, koristeći ponderirano predviđanje, pri čemu denominator za faktor ponderiranja lumina predstavlja točnost fiksne točke faktora ponderiranja lumina;
izvođenje prve referentne vrijednosti faktora ponderiranja lumina prema denominatoru faktora ponderiranja lumina, pri čemu je prva referentna vrijednost jednaka vrijednosti dobivenoj pomicanjem ulijevo od „1“ barem za jednu binarnu znamenku navedenu denominatorom za faktor ponderiranja lumina;
dekodiranje prve vrijednosti razlike faktora ponderiranja lumina iz kodiranih podataka, pri čemu je prva vrijednost razlike jednaka vrijednosti razlike između faktora ponderiranja lumina i prve referentne vrijednosti;
izvođenje faktora ponderiranja lumina dodavanjem prve referentne vrijednosti i prve vrijednosti razlike;
dekodiranje vrijednosti razlike denominatora za faktor ponderiranja kroma iz kodiranih podataka, pri čemu denominator za faktor ponderiranja kroma predstavlja točnost fiksne točke kroma faktora ponderiranja a vrijednost razlike denominatora za faktor ponderiranja kroma jednaka je vrijednosti razlike između denominatora za faktor ponderiranja lumina i denominatora za faktor ponderiranja kroma;
izvođenje denominatora za faktor ponderiranja kroma dodavanjem vrijednosti razlike denominatora za faktor ponderiranja kroma i denominatora za faktor ponderiranja lumina;
izvođenje referentne vrijednosti faktora ponderiranja kroma prema denominatoru za faktor ponderiranja kroma, pri čemu je referentna vrijednost faktora ponderiranja kroma jednaka vrijednosti dobivenoj pomicanjem ulijevo od „1“ barem za jednu binarnu znamenku naznačenu denominatorom za faktor ponderiranja kroma;
dekodiranje vrijednosti razlike faktora ponderiranja kroma iz kodiranih podataka, pri čemu je vrijednost razlike faktora ponderiranja kroma jednaka vrijednosti razlike između faktora ponderiranja kroma i referentne vrijednosti faktora ponderiranja kroma;
izvođenje faktora ponderiranja kroma dodavanjem referentne vrijednosti faktora ponderiranja kroma i vrijednosti razlike faktora ponderiranja kroma
izvođenje referentne vrijednosti odstupanja kroma ciljne slike oduzimanjem vrijednosti dobivene i množenjem srednje vrijednosti maksimalne vrijednosti piksela za hrom sa faktorom ponderiranja kroma i pomicanjem udesno barem za jednu binarnu znamenku određenu denominatorom za faktor ponderiranja kroma, od srednje vrijednosti;
dekodiranje vrijednosti razlike odstupanja kroma iz kodiranih podataka, pri čemu je vrijednost razlike odstupanja kroma jednaka vrijednosti razlike između odstupanja kroma i referentne vrijednosti odstupanja kroma;
izvođenje odstupanja kroma dodavanjem referentne vrijednosti odstupanja kroma i vrijednosti razlike odstupanja kroma.
9. Metoda dekodiranja prema patentnom zahtjevu 8, pri čemu
metoda dalje obuhvaća:
dekodiranje odstupanja lumina ciljne slike iz kodiranih podataka;
izvođenje predviđene vrijednosti lumina korištenjem barem množenja komponente lumina referentne slike sa faktorom ponderiranja lumina, pomicanja udesno barem za jednu binarnu znamenku određenu denominatorom za faktor ponderiranja lumina i dodavanja odstupanja lumina; i
izvođenje predviđene vrijednosti kroma korištenjem barem množenja kroma komponente referentne slike sa faktorom ponderiranja kroma, pomicanja udesno barem za jednu binarnu znamenku određenu denominatorom za faktor ponderiranja kroma i dodavanje odstupanja kroma.
10. Metoda dekodiranja prema patentnom zahtjevu 9, pri čemu
metoda dalje obuhvaća:
dekodiranje koeficijenta transformacije iz kodiranih podataka;
izvođenje vrijednosti greške u predviđanju korištenjem barem inverzne transformacije koeficijenta transformacije; i
izvođenje dekodirane slike korištenjem barem vrijednosti greške u predviđanju, predviđene vrijednosti lumina i predviđene vrijednosti kroma.
11. Metoda dekodiranja prema patentnom zahtjevu 9, pri čemu
metoda dalje obuhvaća:
dekodiranje vektora kretanja iz kodiranih podataka; i
određivanje referentne slike na osnovu vektora kretanja.
12. Metoda dekodiranja prema bilo kojem od patentnih zahtjeva 8 do 11, pri čemu je
vrijednost dobivena pomicanjem ulijevo od „1“ za binarnu znamenku određenu denominatorom za faktor ponderiranja lumina jednaka specifičnom faktoru ponderiranja lumina koji se koristi kada ciljna slika nije imala razlike u lumina od referentne slike.
13. Metoda dekodiranja prema bilo kojem od patentnih zahtjeva 8 do 12, pri čemu
metoda dalje obuhvaća:
primanje, pomoću prijemnog modula, kodiranih podataka preko komunikacionog linka;
privremeno čuvanje, međuspremnikom, barem dijela kodiranih podataka;
čitanje, pomoću modula (801) dekodera, barem dijela kodiranih podataka iz međuspremnika; i
dekodiranje, pomoću modula (801) dekodera, parametara u kodiranim podacima, a modul (801) dekodera je Centralna Procesorska Jedinica (CPU).
14. Metoda dekodiranja prema bilo kojem od patentnih zahtjeva 8 do 12, pri čemu
metoda dalje obuhvaća:
primanje, pomoću prijemnog modula, kodiranih podataka preko komunikacionog linka;
privremeno čuvanje, međuspremnikom, najmanje dijela kodiranih podataka;
čitanje, modulom (801) dekodera, najmanje dijela kodiranih podataka iz međuspremnika; i
dekodiranje, pomoću modula (801) dekodera, parametara u kodiranim podacima, a modul (801) dekodera je Procesor Digitalnog Signala (DSP) ili Na Licu Mjesta Programabilan Niz Izlaza (FPGA).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2011/073852 WO2013057783A1 (ja) | 2011-10-17 | 2011-10-17 | 符号化方法及び復号方法 |
| EP17159139.9A EP3197164B1 (en) | 2011-10-17 | 2011-10-17 | Decoding apparatus and decoding method |
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| Publication Number | Publication Date |
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| HRP20210129T1 true HRP20210129T1 (hr) | 2021-03-19 |
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| HRP20201778TT HRP20201778T1 (hr) | 2011-10-17 | 2020-11-04 | Postupak kodiranja i dekodiranja |
| HRP20210129TT HRP20210129T1 (hr) | 2011-10-17 | 2021-01-25 | Aparat za dekodiranje i metoda dekodiranja |
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| HRP20201778TT HRP20201778T1 (hr) | 2011-10-17 | 2020-11-04 | Postupak kodiranja i dekodiranja |
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| US (7) | US9521422B2 (hr) |
| EP (6) | EP3197164B1 (hr) |
| KR (6) | KR101624058B1 (hr) |
| CN (5) | CN107027026B (hr) |
| AU (5) | AU2011379259B2 (hr) |
| BR (5) | BR112014004805B1 (hr) |
| CA (1) | CA2847299C (hr) |
| CY (2) | CY1123691T1 (hr) |
| DK (2) | DK3217667T3 (hr) |
| ES (2) | ES2848525T3 (hr) |
| HR (2) | HRP20201778T1 (hr) |
| HU (2) | HUE052527T2 (hr) |
| LT (2) | LT3217667T (hr) |
| MX (3) | MX336659B (hr) |
| PL (2) | PL3217667T3 (hr) |
| PT (2) | PT3217667T (hr) |
| RS (2) | RS61338B1 (hr) |
| RU (3) | RU2586876C2 (hr) |
| SG (1) | SG11201400294SA (hr) |
| SI (2) | SI3197164T1 (hr) |
| TW (2) | TWI569630B (hr) |
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