HRP20201820T1 - Postupak kodiranja/dekodiranja slike - Google Patents
Postupak kodiranja/dekodiranja slike Download PDFInfo
- Publication number
- HRP20201820T1 HRP20201820T1 HRP20201820TT HRP20201820T HRP20201820T1 HR P20201820 T1 HRP20201820 T1 HR P20201820T1 HR P20201820T T HRP20201820T T HR P20201820TT HR P20201820 T HRP20201820 T HR P20201820T HR P20201820 T1 HRP20201820 T1 HR P20201820T1
- Authority
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- Prior art keywords
- motion vector
- candidate list
- vector candidate
- candidates
- derived
- Prior art date
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- 239000013598 vector Substances 0.000 claims 74
- 230000002123 temporal effect Effects 0.000 claims 4
Classifications
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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
- H04N19/513—Processing of motion vectors
- H04N19/517—Processing of motion vectors by encoding
- H04N19/52—Processing of motion vectors by encoding by predictive encoding
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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
- H04N19/134—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
- H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
- H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
-
- 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
Claims (4)
1. Postupak dekodiranja slike koji sadrži:
konfiguriranje liste kandidata za vektor pokreta;
modificiranje (S450) liste kandidata za vektor pokreta dodavanjem (0,0) vektora pokreta na temelju broja kandidata za vektor pokreta na listi kandidata za vektor pokreta;
i određivanje (S460) predviđanja vektora pokreta na temelju modificirane liste kandidata za vektor pokreta,
pri čemu konfiguriranje liste kandidata za vektor pokreta sadrži:
izvođenje (S410) maksimalno dva kandidata za prostorni vektor pokreta koji odgovaraju rekonstruiranim blokovima koji su prostorno susjedni trenutnom bloku, pri čemu se barem jedan od izvedenih kandidata za prostorni vektor pokreta generira skaliranjem na osnovi razlike između referentne slike trenutnog bloka i referentne slike rekonstruiranog bloka;
izvođenje (S420) kandidata za privremeni vektor pokreta koji odgovara raspoređenom bloku rekonstruiranom u raspoređenoj slici privremeno susjednoj trenutnom bloku, pri čemu se izvedeni kandidat za privremeni vektor pokreta generira izvođenjem skaliranja na osnovi razlike između prve udaljenosti između trenutne slike i referentne slike trenutnog bloka i druge udaljenosti između raspoređene slike i referentne slike raspoređenog bloka;
dodavanje (S430) izvedenih kandidata za prostorni vektor pokreta i izvedenog kandidata za privremeni vektor pokreta listi kandidata za vektor pokreta;
provjera imaju li dva izvedena kandidata za prostorni vektor pokreta jednaku vrijednost vektora pokreta; i
uklanjanje (S440) jednog od kandidata za prostorni vektor pokreta koji ima istu vrijednost vektora pokreta sa liste kandidata za vektor pokreta;
pri čemu kandidat za privremeni vektor pokreta nije izveden kada su prisutna dva izvedena kandidata za prostorni vektor pokreta i međusobno različiti;
pri čemu kada je broj kandidata za vektor pokreta na listi kandidata za vektor pokreta manji od 2, modificiranje liste kandidata za vektor pokreta više puta dodaje (0,0) vektor pokreta dok broj kandidata za vektor pokreta na listi kandidata za vektor pokreta ne dosegne 2,
pri čemu kada na listi kandidata za vektor pokreta nije prisutan kandidat za vektor pokreta, dva (0,0) vektora pokreta dodaju se na listu kandidata za vektor pokreta.
2. Postupak dekodiranja slike u skladu s patentnim zahtjevom 1, naznačen time što kada su prisutna dva ista kandidata za prostorni vektor pokreta, kandidat za prostorni vektor pokreta koji ima veći indeks kandidata za vektor pokreta od dva ista kandidata za prostorni vektor pokreta uklanja se sa liste kandidata za vektor pokreta.
3. Postupak dekodiranja slike u skladu s patentnim zahtjevom 1, naznačen time što kada je broj kandidata za vektor pokreta na listi kandidata za vektor pokreta veći od 2, modificiranje liste kandidata za vektor pokreta uklanja s liste kandidata za vektor pokreta kandidata za vektor pokreta koji ima indeks veći od 1.
4. Postupak kodiranja slike koji sadrži:
konfiguriranje liste kandidata za vektor pokreta;
modificiranje (S450) liste kandidata za vektor pokreta dodavanjem (0,0) vektora pokreta na temelju broja kandidata za vektor pokreta na listi kandidata za vektor pokreta;
i određivanje (S460) predviđanja vektora pokreta na temelju modificirane liste kandidata za vektor pokreta,
pri čemu konfiguriranje liste kandidata za vektor pokreta sadrži:
izvođenje (S410) maksimalno dva kandidata za prostorni vektor pokreta koji odgovaraju rekonstruiranim blokovima koji su prostorno susjedni trenutnom bloku, pri čemu se barem jedan od izvedenih kandidata za prostorni vektor pokreta generira skaliranjem na osnovi razlike između referentne slike trenutnog bloka i referentne slike rekonstruiranog bloka;
izvođenje (S420) kandidata za privremeni vektor pokreta koji odgovara raspoređenom bloku rekonstruiranom u raspoređenoj slici privremeno susjednoj trenutnom bloku, pri čemu se izvedeni kandidat za privremeni vektor pokreta generira izvođenjem skaliranja na osnovi razlike između prve udaljenosti između trenutne slike i referentne slike trenutnog bloka i druge udaljenosti između raspoređene slike i referentne slike raspoređenog bloka;
dodavanje (S430) izvedenih kandidata za prostorni vektor pokreta i izvedenog kandidata za privremeni vektor pokreta listi kandidata za vektor pokreta;
provjera imaju li dva izvedena kandidata za prostorni vektor pokreta jednaku vrijednost vektora pokreta; i
uklanjanje (S440) jednog od kandidata za prostorni vektor pokreta koji ima istu vrijednost vektora pokreta sa liste kandidata za vektor pokreta;
pri čemu kandidat za privremeni vektor pokreta nije izveden kada su prisutna dva izvedena kandidata za prostorni vektor pokreta i međusobno različiti;
pri čemu kada je broj kandidata za vektor pokreta na popisu kandidata za vektor pokreta manji od 2, modificiranje liste kandidata za vektor pokreta više puta dodaje (0,0) vektor pokreta dok broj kandidata za vektor pokreta na listi kandidata za vektor pokreta ne dosegne 2,
pri čemu kada na listi kandidata za vektor pokreta nije prisutan kandidat za vektor pokreta, dva (0,0) vektora pokreta dodaju se na listu kandidata za vektor pokreta.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20120006282 | 2012-01-19 | ||
| PCT/KR2013/000418 WO2013109093A1 (ko) | 2012-01-19 | 2013-01-18 | 영상 부호화/복호화 방법 및 장치 |
| EP13738327.9A EP2806637B1 (en) | 2012-01-19 | 2013-01-18 | Method for image coding/decoding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HRP20201820T1 true HRP20201820T1 (hr) | 2021-02-19 |
Family
ID=48995608
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HRP20211943TT HRP20211943T8 (hr) | 2012-01-19 | 2013-01-18 | Uređaj za kodiranje/dekodiranje slike |
| HRP20201820TT HRP20201820T1 (hr) | 2012-01-19 | 2020-11-16 | Postupak kodiranja/dekodiranja slike |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HRP20211943TT HRP20211943T8 (hr) | 2012-01-19 | 2013-01-18 | Uređaj za kodiranje/dekodiranje slike |
Country Status (17)
| Country | Link |
|---|---|
| US (5) | US10218999B2 (hr) |
| EP (6) | EP3968639B1 (hr) |
| JP (7) | JP6005762B2 (hr) |
| KR (10) | KR101595419B1 (hr) |
| CN (9) | CN108055548B (hr) |
| BR (4) | BR122022002970B1 (hr) |
| CY (2) | CY1123768T1 (hr) |
| DK (2) | DK3767952T3 (hr) |
| ES (2) | ES2901350T3 (hr) |
| HR (2) | HRP20211943T8 (hr) |
| HU (3) | HUE060931T2 (hr) |
| LT (2) | LT2806637T (hr) |
| PL (2) | PL2806637T3 (hr) |
| PT (2) | PT2806637T (hr) |
| RS (2) | RS62603B1 (hr) |
| SI (2) | SI3767952T1 (hr) |
| WO (1) | WO2013109093A1 (hr) |
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