HRP20181099T1 - Metoda i uređaj za procjenu kvalitete videosignala u tijeku kodiranja i prijenosa videosignala - Google Patents
Metoda i uređaj za procjenu kvalitete videosignala u tijeku kodiranja i prijenosa videosignala Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44209—Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/4425—Monitoring of client processing errors or hardware failure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/40—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled
- H04N25/44—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array
- H04N25/441—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array by reading contiguous pixels from selected rows or columns of the array, e.g. interlaced scanning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/40—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled
- H04N25/44—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array
- H04N25/443—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array by reading pixels from selected 2D regions of the array, e.g. for windowing or digital zooming
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/40—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled
- H04N25/44—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array
- H04N25/445—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array by skipping some contiguous pixels within the read portion of the array
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/40—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled
- H04N25/44—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array
- H04N25/447—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array by preserving the colour pattern with or without loss of information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/0001—Diagnosis, testing or measuring; Detecting, analysis or monitoring not otherwise provided for
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/0001—Diagnosis, testing or measuring; Detecting, analysis or monitoring not otherwise provided for
- H04N2201/0003—Method used
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- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Claims (20)
1. Metoda za određivanje kvalitete prijenosa sekvence video signala na strani prijamnika, naznačena time što metoda obuhvaća sljedeće korake:
(a) hvatanje primljenog ulaznog bita videosignala prije dekodiranja i njegovo prenošenje u analizator bita videosignala;
(b) izdvajanje, tijekom mjerenja vremenskog okvira, jednu ili više značajki iz uhvaćenih zaglavlja paketa pomoću analizatora bitova, bez analiziranja ili dekodiranja paketne nosivosti;
(c) izračunavanje iz jedne ili više značajki, jednog parametra, xwpSEQ, koji predstavlja procjenu vremensko -prostornog opsega degradacije signala zbog gubitka paketa, pri čemu se jednostruki parametar, xwpSEQ, temelji na broju N, skupini slika, GOP-ova, u mjernom okviru i prostorno-vremenskoj mjeri, xl_k, gubitaka koji se javljaju u zahvaćenoj skupini slika, k, koristeći odnos xwpSEQ = Σxl_k/N, pri čemu se prostorno-vremenska mjera xl_k gubitaka koji se javljaju u grupi slike k, izračunava na temelju udjela oslabljenih piksela u zadanom okviru zbog događaja gubitka, xl_i, mjesto gubitka u odnosu na početak GOP-a, t_i i duljinu GOP-a, T_k, koristeći relaciju xl_k = Σxl_i - Σxl_i*t_i/T_k, pri čemu izračunavanje dodatno uzima u obzir faktor korekcije, α1,k ,koji predstavlja prostorno-vremensku kompleksnost video sekvence, pomoću kojeg se korigira doprinos xl_k gubitaka u GOP-u k ukupnom parametru xwpSEQ, koristeći odnos xwpSEQ = Σα1, k*xl_k/ N ili xwpSEQ = Σα1, k * xl_k*T_k / ΣT_k, pri čemu je N broj GOP-a u okviru mjerenja i T_k je duljina GOP-a k;
(d) dostavljanje određenog parametra modulu procjene kvalitete; i
(e) izračunavanje, pomoću modula procjene kvalitete, mjerenje kvalitete zbog gubitka paketa, Qtrans, temeljem samo jednog parametra koji predstavlja procjenu prostorno-vremenskog opsega degradacije signala, xwpSEQ, zbog gubitka paketa i na temelju video razlučivosti informacije i angažiranog video kodeka.
2. Metoda prema patentnom zahtjevu 1, naznačena time da je jednostruki parametar xwpSEQ, određen u koraku c), izračunat iz metainformacije iz medijskog toka kao što je zasebna konfiguracija i skrivanje gubitka paketa.
3. Metoda prema patentnom zahtjevu 1 ili 2, naznačena time, da se udio oslabljenih piksela u zadanom okviru xl_i izračunava na temelju broja videopaketa izgubljenih za događaj i gubitka paketa i u zadanom postignutim okviru, nlp_i, podijeljen s brojem izgubljenih i pravilno primljenih bitova u zadanom postignutom okviru, np, koristeći relaciju xl_i = nlp_i/np.
4. Metoda prema zahtjevu 1 ili 2, naznačena time, da se udio oslabljenih piksela u zadanom okviru xl_i izračunava na temelju broja bitova videozapisa izgubljenih zbog događaja i gubitka u trenutnom zadanom okviru blp_i, podijeljen brojem izgubljenih i pravilno primljenih bitova u trenutnom zadanom okviru, bp, koristeći relaciju xl_i = blp_i/bp.
5. Metoda prema zahtjevu 1 ili 2, naznačena time, da se udio oslabljenih piksela u zadanom okviru xl_i izračunava na temelju broja paketa koji sadrže trenutni okvir, np, broj izgubljenih video paketa u trenutnom zadanom okviru koji su izgubljeno u događaju gubitka i, nlp_i, broj komada po okviru, nsc, i procijenjeni broj paketa po komadu, np/nsc, koristeći relaciju xl_i = 1/np*[(nlp_i - 1)+(np/nsc + 1) / 2].
6. Metoda prema zahtjevu 1 ili 2, naznačena time, da se udio oslabljenih piksela u zadanom okviru xl_i izračunava na temelju ukupne veličine u bitovima paketa koji sadrži trenutni okvir, bp, broj video bitova izgubljenih zbog gubitka događaja i u trenutnom zadanom okviru, blp_i, i procijenjeni broj paketa ili bitova po komadu, np/nsc, koristeći relaciju xl_i = 1/bp* [(blp_i - 1) + (np/nsc + 1)/2 ].
7. Metoda prema patentnom zahtjevu 1 ili 2, naznačena time, da se udio oslabljenih piksela u zadanom okviru xl_i izračunava na temelju broja paketa koji sadrži trenutni okvir, np, broj video paketa koji pripadaju kombiniranom događaju gubitka ij , nlp_ij, broj video paketa u trenutnom zadanom okviru koji se nalaze tijekom događaja gubitka ij, nfp_ij, broj komada po okviru, nsc i procijenjeni broj paketa po komadu, np/nsc, koristeći relaciju xl_i = 1/np * {[(nlp_ij - 1) + (np/nsc + 1) / 2] - [nfp_ij * (nfp_ij + 1)/2]}.
8. Metoda prema zahtjevu 1 ili 2, naznačena time, da se udio oslabljenih piksela u zadanom okviru xl_i izračunava na temelju transporta broja paketa video toka koji su izgubljeni u slijedu, nlp_i, broj komada po okviru, nsc i korekcijski izraz koji odražava propagaciju gubitaka u okviru zadanog gubitka, 1/(2 * nsc), koristeći relaciju xl_i = nlp_i/np + 1/(2 *nsc).
9. Metoda prema zahtjevu 1 ili 2, naznačena time, da se udio oslabljenih piksela u zadanom okviru xl_i izračunava na temelju broja video bitova u paketima prijenosa koji su izgubljeni u slijedu, blp_i, ukupnom broju video bitova sadržanih u trenutni zadani okvir, bp, broj komada po okviru, nsc i korektivni izraz koji odražava propagaciju gubitaka u okviru koji je zadanog gubitka, 1/(2 * nsc), koristeći relaciju xl_i = blp_i/bp + 1/(2*nsc).
10. Metoda prema zahtjevu 1 ili 2, naznačena time, da se udio oslabljenih piksela u zadanom okviru xl_i izračunava na temelju broja paketnih paketa prijenosa videozapisa koji pripadaju kombiniranom događaju gubitka ij, nlp_ij, broju pronađenih paketa prijenosa toka videozapisa između dijela gubitka kombiniranog događaja gubitka ij, nfp_ij, broja komada po okviru, nsc i korekcijskog izraza koji odražava propagaciju gubitaka u okviru zadanog gubitka, 1/(2*nsc), koristeći odnos xl_i = nlp_ij / np + 1 /(2 *nsc) - nfp_ij/(2 * np).
11. Metoda prema patentnom zahtjevu 1 ili 2, gdje u slučaju da se jedan komad koristi po okviru, doprinos xl_i događaj gubitka i izračunat je kao prostorno područje između prvog izgubljenog paketa i kraja okvira.
12. Metoda prema bilo kojem od prethodnih patentnih zahtjeva, naznačena time da korak (c) dodatno uzima u obzir faktor korekcije, α2, i, koji predstavlja prostorno-vremensku složenost video sekvence, kojom se doprinos xl_i odgovarajućeg događaja gubitka i u okviru t_i u GOP-u k, na parametar xl_k korigira pomoću relacije xl_k = Σα2, i * xl_i - Σα2, i * xl_i * t_i / T_k, gdje je T_k duljina GOP-a k.
13. Metoda prema bilo kojem od prethodnih zahtjeva, naznačena time, da faktor korekcije ovisi o vremenskoj složenosti videa izračunatoj po grupi slika.
14. Metoda prema bilo kojem od zahtjeva 1 do 12, naznačena time, da faktor korekcije ovisi o vremenskom položaju okvira u skupini slika zadanih događajem gubitka i.
15. Metoda prema bilo kojem od zahtjeva 1 do 12, naznačena time, da faktor korekcije ovisi o vremenskom položaju okvira u skupini slika zadanih događajem gubitka i na vremenskoj složenosti videa izračunatoj po grupi slike.
16. Metoda prema bilo kojem od zahtjeva 1 do 12, naznačena time, da faktor korekcije ovisi o prostorno-vremenskoj složenosti videa izračunatoj po grupi slike.
17. Metoda prema bilo kojem od prethodnih patentnih zahtjeva, naznačena time da korak e) dodatno uzima u obzir broj grupa slika s događajima gubitka, Ngl, koristeći relacije xwpSEQ = Σβ_k * xl_k / N, s β_k = h (Ngl, xl_k ).
18. Metoda prema bilo kojem od prethodnih patentnih zahtjeva, gdje se varijabla pohranjuje po događaju gubitka koji obuhvaća procjenu položaja zahvaćenog područja u odgovarajućem okviru i koristi se za ispravljanje doprinosa xl_i događaja gubitka i, ili za korekciju doprinosa od određenog vremenskog dijela sekvence do ukupnog parametra prema c).
19. Metoda prema bilo kojem od zahtjeva 1 do 18, naznačena time, da se zamrzavanje koristi kao tip prikrivanja gubitka paketa, a parametar c) odnosi se na ukupno ponderirano vremensko trajanje smrzavanja u slijedu, izračunato prema bilo kojoj od metoda prema prema zahtjevima 1 do 16, i koristeći odnos xl_k = (T_k-t_i) / T_k, gdje je t_i mjesto gubitka u odnosu na početak GOP-a, T_k je duljina GOP-a k.
20. Uređaj za procjenu kvalitete prijenosa signala video signala na prijemnoj strani, koji obuhvaća: analizator bita videosignala koji prima primljeni ulazni video bitni tok prije dekodiranja i koji je konfiguriran da izvlači tijekom mjerenja vremenskog okvira, jednu ili više značajki iz uhvaćenog zaglavlja paketa uhvaćenog ulaznog videosignalnog toka bez analiziranja ili dekodiranja paketa korisnog sadržaja; sredstvo za računanje iz jedne ili više značajki jednog parametra, xwpSEQ, koji predstavlja procjenu prostorno-vremenskog opsega degradacije signala zbog gubitka paketa, pri čemu je jednostruki parametar, xwpSEQ, baziran na broju N, od skupine slike, GOP-a, u mjernom okviru i prostorno-vremenskoj mjeri, xl_k, gubitaka koji se javljaju u zahvaćenoj skupini slike, k, koristeći relaciju xwpSEQ = Σxl_k / N, pri čemu se prostorno-vremenska mjera xl_k gubitaka koji se javljaju u skupini slike k kalkulira na temelju udjela oštećenih piksela u zadanom okviru zbog događaja gubitka, xl_i, mjesto gubitka u odnosu na početak GOP-a, t_i i duljina GOP-a, T_k, koristeći relaciju xl_k = Σxl_i - Σxl_i * t_i / T_k, pri čemu računanje dodatno uzima u obzir faktor korekcije α1, k, koji predstavlja prostorno-vremensku složenost video sekvence, kojom se korigira doprinos xl_k gubitaka u GOP-u k ukupnog parametra xwpSEQ, koristeći relaciju xwpSEQ = Σα1, k * xl_k / N ili xwpSEQ = Σα1.k * xl_k * T_k / ΣT_k, gdje je N broj GOP-ova u okviru mjerenja i T_k je duljina GOP-a k; modul za procjenu kakvoće konfiguriran za primanje određenog parametra, modul za procjenu kakvoće koji je konfiguriran za izračunavanje mjera kvalitete zbog gubitka paketa, Qtrans, temeljen na samo jednom parametru koji predstavlja procjenu prostorno-vremenskog razmjera degradacije signala, xwpSEQ , zbog gubitka paketa i na temelju informacija o video razlučivosti i upotrebe video kodeka.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10194578 | 2010-12-10 | ||
| EP11763618.3A EP2649807B1 (en) | 2010-12-10 | 2011-09-02 | Method and apparatus for assessing the quality of a video signal during encoding and transmission of the video signal |
| PCT/EP2011/065188 WO2012076202A1 (en) | 2010-12-10 | 2011-09-02 | Method and apparatus for assessing the quality of a video signal during encoding and transmission of the video signal |
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| HRP20181099T1 true HRP20181099T1 (hr) | 2018-09-07 |
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| HRP20181099TT HRP20181099T1 (hr) | 2010-12-10 | 2018-07-11 | Metoda i uređaj za procjenu kvalitete videosignala u tijeku kodiranja i prijenosa videosignala |
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| Country | Link |
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| US (1) | US9232216B2 (hr) |
| EP (1) | EP2649807B1 (hr) |
| JP (1) | JP5964852B2 (hr) |
| KR (1) | KR101834031B1 (hr) |
| CN (1) | CN103270765B (hr) |
| BR (1) | BR112013014366B1 (hr) |
| DK (1) | DK2649807T3 (hr) |
| ES (1) | ES2675806T3 (hr) |
| HR (1) | HRP20181099T1 (hr) |
| HU (1) | HUE039252T2 (hr) |
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| WO (1) | WO2012076202A1 (hr) |
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| US9203708B2 (en) * | 2011-09-26 | 2015-12-01 | Telefonaktiebolaget L M Ericsson (Publ) | Estimating user-perceived quality of an encoded stream |
| US9172952B2 (en) * | 2012-06-25 | 2015-10-27 | Cisco Technology, Inc. | Method and system for analyzing video stream accuracy in a network environment |
| PL2701397T3 (pl) | 2012-08-20 | 2015-03-31 | Deutsche Telekom Ag | Zależny od treści model jakości wideo dla usług strumieniowania wideo |
| CN104780369B (zh) * | 2012-08-21 | 2018-04-17 | 华为技术有限公司 | 一种获得视频编码压缩质量的方法及装置 |
| US11159804B1 (en) * | 2012-09-13 | 2021-10-26 | Arris Enterprises Llc | QoE feedback based intelligent video transport stream tuning |
| US9137505B2 (en) * | 2013-02-06 | 2015-09-15 | C&C Technic Taiwan Co., Ltd. | Long-range VGA image transmission system providing automatic image adjustment |
| KR101563923B1 (ko) | 2014-02-12 | 2015-10-28 | 연세대학교 산학협력단 | 온라인 비디오 컨텐츠의 화질 열화율 예측 방법 및 그 장치 |
| CN111918060B (zh) | 2016-08-23 | 2023-11-17 | 华为技术有限公司 | 一种实现视频质量评估的方法、装置和系统 |
| CN107920279B (zh) * | 2016-10-08 | 2020-03-20 | 华为技术有限公司 | 评估视频质量的方法和设备 |
| US10541933B2 (en) * | 2016-11-10 | 2020-01-21 | Disney Enterprises, Inc. | Systems and methods for aligning frames of a digital video content in IP domain |
| CN107318014B (zh) * | 2017-07-25 | 2018-11-16 | 西安电子科技大学 | 基于视觉显著区域和时空特性的视频质量评估方法 |
| CN109561300B (zh) * | 2018-12-27 | 2021-03-12 | 中国联合网络通信集团有限公司 | 业务质量检测方法及装置 |
| KR102211556B1 (ko) | 2019-10-22 | 2021-02-03 | 전남대학교산학협력단 | 네트워크 서비스를 위한 이미지 품질 평가 시스템 및 그 방법 |
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-
2011
- 2011-09-02 PL PL11763618T patent/PL2649807T3/pl unknown
- 2011-09-02 US US13/991,665 patent/US9232216B2/en active Active
- 2011-09-02 KR KR1020137017414A patent/KR101834031B1/ko active IP Right Grant
- 2011-09-02 WO PCT/EP2011/065188 patent/WO2012076202A1/en active Application Filing
- 2011-09-02 BR BR112013014366-5A patent/BR112013014366B1/pt active IP Right Grant
- 2011-09-02 ES ES11763618.3T patent/ES2675806T3/es active Active
- 2011-09-02 HU HUE11763618A patent/HUE039252T2/hu unknown
- 2011-09-02 EP EP11763618.3A patent/EP2649807B1/en active Active
- 2011-09-02 JP JP2013542418A patent/JP5964852B2/ja active Active
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- 2011-09-02 DK DK11763618.3T patent/DK2649807T3/en active
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2018
- 2018-07-11 HR HRP20181099TT patent/HRP20181099T1/hr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN103270765B (zh) | 2016-08-10 |
| JP5964852B2 (ja) | 2016-08-03 |
| US20130265445A1 (en) | 2013-10-10 |
| WO2012076202A1 (en) | 2012-06-14 |
| HUE039252T2 (hu) | 2018-12-28 |
| EP2649807B1 (en) | 2018-04-25 |
| CN103270765A (zh) | 2013-08-28 |
| US9232216B2 (en) | 2016-01-05 |
| EP2649807A1 (en) | 2013-10-16 |
| KR20140027080A (ko) | 2014-03-06 |
| DK2649807T3 (en) | 2018-06-18 |
| BR112013014366A2 (pt) | 2017-08-01 |
| ES2675806T3 (es) | 2018-07-12 |
| PL2649807T3 (pl) | 2018-09-28 |
| KR101834031B1 (ko) | 2018-03-02 |
| BR112013014366B1 (pt) | 2022-07-12 |
| JP2014500677A (ja) | 2014-01-09 |
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