Weighted-to-Spherically-Uniform Quality Evaluation for Omnidirectional Video
Omnidirectional video records a scene in all directions around one central position. It allows users to select viewing content freely in all directions. Assuming that viewing directions are uniformly distributed, the isotropic observation space can be regarded as a sphere. Omnidirectional video is c...
Ausführliche Beschreibung
Gespeichert in:
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Sun, Yule [verfasserIn] |
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Englisch |
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Enthalten in: IEEE signal processing letters - Institute of Electrical and Electronics Engineers ; ID: gnd/1692-5, New York, NY, 19XX, PP, 99, Seite 1-1 |
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volume:PP ; number:99 ; pages:1-1 |
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| DOI / URN: |
10.1109/LSP.2017.2720693 |
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| 520 | |a Omnidirectional video records a scene in all directions around one central position. It allows users to select viewing content freely in all directions. Assuming that viewing directions are uniformly distributed, the isotropic observation space can be regarded as a sphere. Omnidirectional video is commonly represented by different projection formats with one or multiple planes. To measure objective quality of omnidirectional video in observation space more accurately, a weighted-to-spherically-uniform quality evaluation method is proposed in this letter. The error of each pixel on projection planes is multiplied by a weight to ensure the equivalent spherical area in observation space, in which pixels with equal mapped spherical area have the same influence on distortion measurement. Our method makes the quality evaluation results more accurate and reliable since it avoids error propagation caused by the conversion from resampling representation space to observation space. As an example of such quality evaluation method, weighted-to-spherically-uniform peak signal-to-noise ratio (WS-PSNR) is described and its performance is experimentally analyzed. | ||
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| 650 | 4 | |a objective quality evaluation | |
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| 650 | 4 | |a projection format | |
| 650 | 4 | |a Distortion | |
| 650 | 4 | |a Two dimensional displays | |
| 650 | 4 | |a Distortion measurement | |
| 650 | 4 | |a Weight measurement | |
| 650 | 4 | |a Omnidirectional video | |
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| 700 | 1 | |a Yu, Lu |4 oth | |
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10.1109/LSP.2017.2720693 doi PQ20171228 (DE-627)OLC199831670X (DE-599)GBVOLC199831670X (PRQ)i652-87cacd4ef2873479363ed7bee2710cbb699c545d9c70d48d2ab6cfddf1a0948b0 (KEY)02390256u00000000000009900001weightedtosphericallyuniformqualityevaluationforom DE-627 ger DE-627 rakwb eng 53.00 bkl Sun, Yule verfasserin aut Weighted-to-Spherically-Uniform Quality Evaluation for Omnidirectional Video Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Omnidirectional video records a scene in all directions around one central position. It allows users to select viewing content freely in all directions. Assuming that viewing directions are uniformly distributed, the isotropic observation space can be regarded as a sphere. Omnidirectional video is commonly represented by different projection formats with one or multiple planes. To measure objective quality of omnidirectional video in observation space more accurately, a weighted-to-spherically-uniform quality evaluation method is proposed in this letter. The error of each pixel on projection planes is multiplied by a weight to ensure the equivalent spherical area in observation space, in which pixels with equal mapped spherical area have the same influence on distortion measurement. Our method makes the quality evaluation results more accurate and reliable since it avoids error propagation caused by the conversion from resampling representation space to observation space. As an example of such quality evaluation method, weighted-to-spherically-uniform peak signal-to-noise ratio (WS-PSNR) is described and its performance is experimentally analyzed. Extraterrestrial measurements objective quality evaluation Measurement uncertainty projection format Distortion Two dimensional displays Distortion measurement Weight measurement Omnidirectional video Lu, Ang oth Yu, Lu oth Enthalten in Institute of Electrical and Electronics Engineers ; ID: gnd/1692-5 IEEE signal processing letters New York, NY, 19XX PP, 99, Seite 1-1 (DE-627)182273075 (DE-600)916964-7 1070-9908 nnns volume:PP number:99 pages:1-1 http://dx.doi.org/10.1109/LSP.2017.2720693 Volltext http://ieeexplore.ieee.org/document/7961186 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-MAT 53.00 AVZ AR PP 99 1-1 |
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10.1109/LSP.2017.2720693 doi PQ20171228 (DE-627)OLC199831670X (DE-599)GBVOLC199831670X (PRQ)i652-87cacd4ef2873479363ed7bee2710cbb699c545d9c70d48d2ab6cfddf1a0948b0 (KEY)02390256u00000000000009900001weightedtosphericallyuniformqualityevaluationforom DE-627 ger DE-627 rakwb eng 53.00 bkl Sun, Yule verfasserin aut Weighted-to-Spherically-Uniform Quality Evaluation for Omnidirectional Video Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Omnidirectional video records a scene in all directions around one central position. It allows users to select viewing content freely in all directions. Assuming that viewing directions are uniformly distributed, the isotropic observation space can be regarded as a sphere. Omnidirectional video is commonly represented by different projection formats with one or multiple planes. To measure objective quality of omnidirectional video in observation space more accurately, a weighted-to-spherically-uniform quality evaluation method is proposed in this letter. The error of each pixel on projection planes is multiplied by a weight to ensure the equivalent spherical area in observation space, in which pixels with equal mapped spherical area have the same influence on distortion measurement. Our method makes the quality evaluation results more accurate and reliable since it avoids error propagation caused by the conversion from resampling representation space to observation space. As an example of such quality evaluation method, weighted-to-spherically-uniform peak signal-to-noise ratio (WS-PSNR) is described and its performance is experimentally analyzed. Extraterrestrial measurements objective quality evaluation Measurement uncertainty projection format Distortion Two dimensional displays Distortion measurement Weight measurement Omnidirectional video Lu, Ang oth Yu, Lu oth Enthalten in Institute of Electrical and Electronics Engineers ; ID: gnd/1692-5 IEEE signal processing letters New York, NY, 19XX PP, 99, Seite 1-1 (DE-627)182273075 (DE-600)916964-7 1070-9908 nnns volume:PP number:99 pages:1-1 http://dx.doi.org/10.1109/LSP.2017.2720693 Volltext http://ieeexplore.ieee.org/document/7961186 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-MAT 53.00 AVZ AR PP 99 1-1 |
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10.1109/LSP.2017.2720693 doi PQ20171228 (DE-627)OLC199831670X (DE-599)GBVOLC199831670X (PRQ)i652-87cacd4ef2873479363ed7bee2710cbb699c545d9c70d48d2ab6cfddf1a0948b0 (KEY)02390256u00000000000009900001weightedtosphericallyuniformqualityevaluationforom DE-627 ger DE-627 rakwb eng 53.00 bkl Sun, Yule verfasserin aut Weighted-to-Spherically-Uniform Quality Evaluation for Omnidirectional Video Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Omnidirectional video records a scene in all directions around one central position. It allows users to select viewing content freely in all directions. Assuming that viewing directions are uniformly distributed, the isotropic observation space can be regarded as a sphere. Omnidirectional video is commonly represented by different projection formats with one or multiple planes. To measure objective quality of omnidirectional video in observation space more accurately, a weighted-to-spherically-uniform quality evaluation method is proposed in this letter. The error of each pixel on projection planes is multiplied by a weight to ensure the equivalent spherical area in observation space, in which pixels with equal mapped spherical area have the same influence on distortion measurement. Our method makes the quality evaluation results more accurate and reliable since it avoids error propagation caused by the conversion from resampling representation space to observation space. As an example of such quality evaluation method, weighted-to-spherically-uniform peak signal-to-noise ratio (WS-PSNR) is described and its performance is experimentally analyzed. Extraterrestrial measurements objective quality evaluation Measurement uncertainty projection format Distortion Two dimensional displays Distortion measurement Weight measurement Omnidirectional video Lu, Ang oth Yu, Lu oth Enthalten in Institute of Electrical and Electronics Engineers ; ID: gnd/1692-5 IEEE signal processing letters New York, NY, 19XX PP, 99, Seite 1-1 (DE-627)182273075 (DE-600)916964-7 1070-9908 nnns volume:PP number:99 pages:1-1 http://dx.doi.org/10.1109/LSP.2017.2720693 Volltext http://ieeexplore.ieee.org/document/7961186 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-MAT 53.00 AVZ AR PP 99 1-1 |
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10.1109/LSP.2017.2720693 doi PQ20171228 (DE-627)OLC199831670X (DE-599)GBVOLC199831670X (PRQ)i652-87cacd4ef2873479363ed7bee2710cbb699c545d9c70d48d2ab6cfddf1a0948b0 (KEY)02390256u00000000000009900001weightedtosphericallyuniformqualityevaluationforom DE-627 ger DE-627 rakwb eng 53.00 bkl Sun, Yule verfasserin aut Weighted-to-Spherically-Uniform Quality Evaluation for Omnidirectional Video Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Omnidirectional video records a scene in all directions around one central position. It allows users to select viewing content freely in all directions. Assuming that viewing directions are uniformly distributed, the isotropic observation space can be regarded as a sphere. Omnidirectional video is commonly represented by different projection formats with one or multiple planes. To measure objective quality of omnidirectional video in observation space more accurately, a weighted-to-spherically-uniform quality evaluation method is proposed in this letter. The error of each pixel on projection planes is multiplied by a weight to ensure the equivalent spherical area in observation space, in which pixels with equal mapped spherical area have the same influence on distortion measurement. Our method makes the quality evaluation results more accurate and reliable since it avoids error propagation caused by the conversion from resampling representation space to observation space. As an example of such quality evaluation method, weighted-to-spherically-uniform peak signal-to-noise ratio (WS-PSNR) is described and its performance is experimentally analyzed. Extraterrestrial measurements objective quality evaluation Measurement uncertainty projection format Distortion Two dimensional displays Distortion measurement Weight measurement Omnidirectional video Lu, Ang oth Yu, Lu oth Enthalten in Institute of Electrical and Electronics Engineers ; ID: gnd/1692-5 IEEE signal processing letters New York, NY, 19XX PP, 99, Seite 1-1 (DE-627)182273075 (DE-600)916964-7 1070-9908 nnns volume:PP number:99 pages:1-1 http://dx.doi.org/10.1109/LSP.2017.2720693 Volltext http://ieeexplore.ieee.org/document/7961186 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-MAT 53.00 AVZ AR PP 99 1-1 |
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10.1109/LSP.2017.2720693 doi PQ20171228 (DE-627)OLC199831670X (DE-599)GBVOLC199831670X (PRQ)i652-87cacd4ef2873479363ed7bee2710cbb699c545d9c70d48d2ab6cfddf1a0948b0 (KEY)02390256u00000000000009900001weightedtosphericallyuniformqualityevaluationforom DE-627 ger DE-627 rakwb eng 53.00 bkl Sun, Yule verfasserin aut Weighted-to-Spherically-Uniform Quality Evaluation for Omnidirectional Video Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Omnidirectional video records a scene in all directions around one central position. It allows users to select viewing content freely in all directions. Assuming that viewing directions are uniformly distributed, the isotropic observation space can be regarded as a sphere. Omnidirectional video is commonly represented by different projection formats with one or multiple planes. To measure objective quality of omnidirectional video in observation space more accurately, a weighted-to-spherically-uniform quality evaluation method is proposed in this letter. The error of each pixel on projection planes is multiplied by a weight to ensure the equivalent spherical area in observation space, in which pixels with equal mapped spherical area have the same influence on distortion measurement. Our method makes the quality evaluation results more accurate and reliable since it avoids error propagation caused by the conversion from resampling representation space to observation space. As an example of such quality evaluation method, weighted-to-spherically-uniform peak signal-to-noise ratio (WS-PSNR) is described and its performance is experimentally analyzed. Extraterrestrial measurements objective quality evaluation Measurement uncertainty projection format Distortion Two dimensional displays Distortion measurement Weight measurement Omnidirectional video Lu, Ang oth Yu, Lu oth Enthalten in Institute of Electrical and Electronics Engineers ; ID: gnd/1692-5 IEEE signal processing letters New York, NY, 19XX PP, 99, Seite 1-1 (DE-627)182273075 (DE-600)916964-7 1070-9908 nnns volume:PP number:99 pages:1-1 http://dx.doi.org/10.1109/LSP.2017.2720693 Volltext http://ieeexplore.ieee.org/document/7961186 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-MAT 53.00 AVZ AR PP 99 1-1 |
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Omnidirectional video records a scene in all directions around one central position. It allows users to select viewing content freely in all directions. Assuming that viewing directions are uniformly distributed, the isotropic observation space can be regarded as a sphere. Omnidirectional video is commonly represented by different projection formats with one or multiple planes. To measure objective quality of omnidirectional video in observation space more accurately, a weighted-to-spherically-uniform quality evaluation method is proposed in this letter. The error of each pixel on projection planes is multiplied by a weight to ensure the equivalent spherical area in observation space, in which pixels with equal mapped spherical area have the same influence on distortion measurement. Our method makes the quality evaluation results more accurate and reliable since it avoids error propagation caused by the conversion from resampling representation space to observation space. As an example of such quality evaluation method, weighted-to-spherically-uniform peak signal-to-noise ratio (WS-PSNR) is described and its performance is experimentally analyzed. |
| abstractGer |
Omnidirectional video records a scene in all directions around one central position. It allows users to select viewing content freely in all directions. Assuming that viewing directions are uniformly distributed, the isotropic observation space can be regarded as a sphere. Omnidirectional video is commonly represented by different projection formats with one or multiple planes. To measure objective quality of omnidirectional video in observation space more accurately, a weighted-to-spherically-uniform quality evaluation method is proposed in this letter. The error of each pixel on projection planes is multiplied by a weight to ensure the equivalent spherical area in observation space, in which pixels with equal mapped spherical area have the same influence on distortion measurement. Our method makes the quality evaluation results more accurate and reliable since it avoids error propagation caused by the conversion from resampling representation space to observation space. As an example of such quality evaluation method, weighted-to-spherically-uniform peak signal-to-noise ratio (WS-PSNR) is described and its performance is experimentally analyzed. |
| abstract_unstemmed |
Omnidirectional video records a scene in all directions around one central position. It allows users to select viewing content freely in all directions. Assuming that viewing directions are uniformly distributed, the isotropic observation space can be regarded as a sphere. Omnidirectional video is commonly represented by different projection formats with one or multiple planes. To measure objective quality of omnidirectional video in observation space more accurately, a weighted-to-spherically-uniform quality evaluation method is proposed in this letter. The error of each pixel on projection planes is multiplied by a weight to ensure the equivalent spherical area in observation space, in which pixels with equal mapped spherical area have the same influence on distortion measurement. Our method makes the quality evaluation results more accurate and reliable since it avoids error propagation caused by the conversion from resampling representation space to observation space. As an example of such quality evaluation method, weighted-to-spherically-uniform peak signal-to-noise ratio (WS-PSNR) is described and its performance is experimentally analyzed. |
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| title_short |
Weighted-to-Spherically-Uniform Quality Evaluation for Omnidirectional Video |
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http://dx.doi.org/10.1109/LSP.2017.2720693 http://ieeexplore.ieee.org/document/7961186 |
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| author2 |
Lu, Ang Yu, Lu |
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Lu, Ang Yu, Lu |
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| doi_str |
10.1109/LSP.2017.2720693 |
| up_date |
2024-07-04T04:46:05.758Z |
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7.399617 |