IN2014MN00900A - - Google Patents
Info
- Publication number
- IN2014MN00900A IN2014MN00900A IN900MUN2014A IN2014MN00900A IN 2014MN00900 A IN2014MN00900 A IN 2014MN00900A IN 900MUN2014 A IN900MUN2014 A IN 900MUN2014A IN 2014MN00900 A IN2014MN00900 A IN 2014MN00900A
- Authority
- IN
- India
- Prior art keywords
- context
- acquired
- basis
- transform coefficient
- decoding
- Prior art date
Links
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
- H04N19/10—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
- H04N19/102—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
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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
- H04N19/12—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
- H04N19/169—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
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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
-
- 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
-
- 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
-
- 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
- H04N19/96—Tree coding, e.g. quad-tree coding
Abstract
Disclosed are a method and apparatus for determining a context model for transform coefficient entropy encoding and decoding. In the method and apparatus for determining a context model a context set index (ctxset) is acquired on the basis of color component information in transform units the current subset position and whether or not a valid transform coefficient having a value greater than a first critical value exists in the preceding subset and a context offset (c1) is acquired on the basis of the length of a preceding continuous transform coefficient having a value of 1. Also a context index (ctxidx) is determined for entropy encoding and decoding of a first critical value flag on the basis of the acquired context set index and the context offset.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161553668P | 2011-10-31 | 2011-10-31 | |
| US201261671955P | 2012-07-16 | 2012-07-16 | |
| PCT/KR2012/009074 WO2013066051A1 (en) | 2011-10-31 | 2012-10-31 | Method and apparatus for determining a context model for transform coefficient level entropy encoding and decoding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN2014MN00900A true IN2014MN00900A (en) | 2015-04-17 |
Family
ID=48192343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN900MUN2014 IN2014MN00900A (en) | 2011-10-31 | 2012-10-31 |
Country Status (21)
| Country | Link |
|---|---|
| US (5) | US9414088B2 (en) |
| EP (5) | EP3399760B1 (en) |
| JP (5) | JP5934376B2 (en) |
| KR (6) | KR101598142B1 (en) |
| CN (5) | CN107465934B (en) |
| AU (1) | AU2012333301B2 (en) |
| CA (2) | CA3016926C (en) |
| CY (3) | CY1118368T1 (en) |
| DK (3) | DK2773109T3 (en) |
| ES (4) | ES2682991T3 (en) |
| HR (3) | HRP20161726T1 (en) |
| HU (3) | HUE031315T2 (en) |
| IN (1) | IN2014MN00900A (en) |
| LT (3) | LT3166317T (en) |
| PL (4) | PL3166317T3 (en) |
| PT (3) | PT3145197T (en) |
| RS (3) | RS57491B1 (en) |
| SI (3) | SI2773109T1 (en) |
| TR (1) | TR201811137T4 (en) |
| TW (4) | TWI692243B (en) |
| WO (1) | WO2013066051A1 (en) |
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| US10091529B2 (en) * | 2010-07-09 | 2018-10-02 | Samsung Electronics Co., Ltd. | Method and apparatus for entropy encoding/decoding a transform coefficient |
| US9621921B2 (en) | 2012-04-16 | 2017-04-11 | Qualcomm Incorporated | Coefficient groups and coefficient coding for coefficient scans |
| MX339710B (en) * | 2012-06-22 | 2016-06-07 | Panasonic Ip Corp America | Image encoding method, image decoding method, image encoding device, image decoding device, and image encoding and decoding device. |
| US10003804B2 (en) * | 2012-12-27 | 2018-06-19 | Nec Corporation | Video coding device using quantizing an orthogonal transform coefficient |
| US9225991B2 (en) * | 2013-05-30 | 2015-12-29 | Apple Inc. | Adaptive color space transform coding |
| US9225988B2 (en) | 2013-05-30 | 2015-12-29 | Apple Inc. | Adaptive color space transform coding |
| US10687079B2 (en) * | 2014-03-13 | 2020-06-16 | Qualcomm Incorporated | Constrained depth intra mode coding for 3D video coding |
| US9781424B2 (en) * | 2015-01-19 | 2017-10-03 | Google Inc. | Efficient context handling in arithmetic coding |
| US9936201B2 (en) * | 2015-01-27 | 2018-04-03 | Qualcomm Incorporated | Contexts for large coding tree units |
| US10574993B2 (en) * | 2015-05-29 | 2020-02-25 | Qualcomm Incorporated | Coding data using an enhanced context-adaptive binary arithmetic coding (CABAC) design |
| EP3280143A1 (en) * | 2016-08-04 | 2018-02-07 | Thomson Licensing | A method and an apparatus for image block encoding and decoding |
| WO2018190595A1 (en) * | 2017-04-13 | 2018-10-18 | 엘지전자(주) | Method and apparatus for entropy encoding and decoding video signal |
| US10869060B2 (en) * | 2018-01-30 | 2020-12-15 | Google Llc | Efficient context model computation design in transform coefficient coding |
| WO2019199838A1 (en) * | 2018-04-12 | 2019-10-17 | Futurewei Technologies, Inc. | Reducing context switching for coding transform coefficients |
| US11006150B2 (en) * | 2018-09-24 | 2021-05-11 | Tencent America LLC | Method and apparatus for video coding |
| EP3886438A4 (en) * | 2018-12-24 | 2022-01-19 | Huawei Technologies Co., Ltd. | Flag bit context modeling method and device |
| CN109672690B (en) * | 2019-01-29 | 2021-02-19 | 哈尔滨工业大学 | Method for coding data stream with known data amplitude range |
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2012
- 2012-10-31 RS RS20180910A patent/RS57491B1/en unknown
- 2012-10-31 PL PL16197055T patent/PL3166317T3/en unknown
- 2012-10-31 IN IN900MUN2014 patent/IN2014MN00900A/en unknown
- 2012-10-31 JP JP2014539870A patent/JP5934376B2/en active Active
- 2012-10-31 PL PL12845496T patent/PL2773109T3/en unknown
- 2012-10-31 CA CA3016926A patent/CA3016926C/en active Active
- 2012-10-31 CN CN201710929383.4A patent/CN107465934B/en active Active
- 2012-10-31 PL PL18178662T patent/PL3399760T3/en unknown
- 2012-10-31 TW TW107118909A patent/TWI692243B/en active
- 2012-10-31 CN CN201710928759.XA patent/CN107734348B/en active Active
- 2012-10-31 EP EP18178662.5A patent/EP3399760B1/en active Active
- 2012-10-31 EP EP16197057.9A patent/EP3145197B1/en active Active
- 2012-10-31 LT LTEP16197055.3T patent/LT3166317T/en unknown
- 2012-10-31 PT PT161970579T patent/PT3145197T/en unknown
- 2012-10-31 ES ES16197057.9T patent/ES2682991T3/en active Active
- 2012-10-31 DK DK12845496.4T patent/DK2773109T3/en active
- 2012-10-31 DK DK16197057.9T patent/DK3145197T3/en active
- 2012-10-31 HU HUE12845496A patent/HUE031315T2/en unknown
- 2012-10-31 TR TR2018/11137T patent/TR201811137T4/en unknown
- 2012-10-31 TW TW101140483A patent/TW201330631A/en unknown
- 2012-10-31 CN CN201710929029.1A patent/CN107465933B/en active Active
- 2012-10-31 EP EP16197055.3A patent/EP3166317B1/en active Active
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- 2012-10-31 CN CN201710928537.8A patent/CN107529060B/en active Active
- 2012-10-31 PL PL16197057T patent/PL3145197T3/en unknown
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- 2012-10-31 ES ES16197055.3T patent/ES2684480T3/en active Active
- 2012-10-31 PT PT128454964T patent/PT2773109T/en unknown
- 2012-10-31 PT PT16197055T patent/PT3166317T/en unknown
- 2012-10-31 SI SI201230817A patent/SI2773109T1/en unknown
- 2012-10-31 HU HUE16197057A patent/HUE040408T2/en unknown
- 2012-10-31 DK DK16197055.3T patent/DK3166317T3/en active
- 2012-10-31 CA CA2854074A patent/CA2854074C/en active Active
- 2012-10-31 WO PCT/KR2012/009074 patent/WO2013066051A1/en active Application Filing
- 2012-10-31 ES ES18178662T patent/ES2868087T3/en active Active
- 2012-10-31 SI SI201231354T patent/SI3145197T1/en unknown
- 2012-10-31 HU HUE18178662A patent/HUE054305T2/en unknown
- 2012-10-31 EP EP21159234.0A patent/EP3846479A1/en active Pending
- 2012-10-31 TW TW106102285A patent/TWI629895B/en active
- 2012-10-31 SI SI201231363T patent/SI3166317T1/en unknown
- 2012-10-31 RS RS20161129A patent/RS55403B1/en unknown
- 2012-10-31 TW TW105117901A patent/TWI574550B/en active
- 2012-10-31 KR KR1020120122628A patent/KR101598142B1/en active IP Right Grant
- 2012-10-31 AU AU2012333301A patent/AU2012333301B2/en not_active Expired - Fee Related
- 2012-10-31 US US14/355,439 patent/US9414088B2/en active Active
- 2012-10-31 CN CN201280065586.9A patent/CN104041052B/en active Active
- 2012-10-31 LT LTEP12845496.4T patent/LT2773109T/en unknown
- 2012-10-31 ES ES12845496.4T patent/ES2608157T3/en active Active
- 2012-10-31 EP EP12845496.4A patent/EP2773109B1/en active Active
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2015
- 2015-04-03 US US14/678,621 patent/US9503752B2/en active Active
- 2015-04-03 US US14/678,588 patent/US9307263B2/en active Active
- 2015-04-03 US US14/678,637 patent/US9532072B2/en active Active
- 2015-04-03 US US14/678,664 patent/US9521430B2/en active Active
- 2015-04-22 KR KR1020150056890A patent/KR101598147B1/en active IP Right Grant
- 2015-04-22 KR KR1020150056887A patent/KR101635115B1/en active IP Right Grant
- 2015-04-22 KR KR1020150056891A patent/KR101915253B1/en active IP Right Grant
- 2015-04-22 KR KR1020150056888A patent/KR101598145B1/en active IP Right Grant
- 2015-04-22 KR KR1020150056889A patent/KR101598146B1/en active IP Right Grant
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2016
- 2016-05-06 JP JP2016093435A patent/JP5992644B1/en active Active
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2017
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2018
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- 2018-09-06 JP JP2018167221A patent/JP6595679B2/en active Active
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