J-STAGE 2015.06.16 Transactions of Japan Society of Kansei Engineering J-STAGE Advance Published Date: 2015.06.16 doi: 10.5057/jjske.TJSKE-D-14-00071 Are There Any Impressive Differences for Viewers between Ultra High-resolution and High Definition Images? Hanako IKEDA, Chiaki TANAKA, Tomohiro ISHIYAMA, Souta HIDAKA and Genta MIYAZAKI Rikkyo University, 1-2-26 Kitano, Niiza-shi, Saitama 352-8558, Japan Abstract : Ultra-high definition (4K) imaging allows us to achieve considerably higher image quality than would high definition (HD) imaging. The present study examined how 4K and HD imaging could influence subjective impressions of movies differently, in association with the quantities of motion and fields of view of these movies. We found that stronger impressions regarding comfort and impact were evoked for 4K movies with smaller quantities of motion and medium field of view. Stronger perceptions of impact occurred for HD movies with larger quantities of motion and larger field of view. HD movies also gave stronger impression regarding dynamics regardless of motion quantities. Additionally, HD movies down-converted from 4K movies tended to induce higher impressions regarding evaluation and comfort in some situations. These results suggest that subjective impressions of movies are influenced by the differences in resolution images, as well as interactions between imaging types and characteristics of movie contents. Keywords : Ultra high definition imaging, high definition imaging, subjective impression 1. 3D High Definition HD 1,920 1,080 3,840 2,160 Ultra HD 4K 7,680 4,320 8K 8K 80 1 100 60 60 2 4K 4K 3 Received: 2014.05.27 / Accepted: 2015.05.11 Copyright 2015 All Rights Reserved.
4K HD 4K HD HD 4 5 4K 4K HD 4K / 2. 2.1 4 55 2 / 4K 4K HD 3 2 3 4. 2.2 55 18 53 21.70 SD 5.72 47 16 31 18 22 19.64 SD 1.08 28 12 16 2.3 4K HD Sony PMW-F55 XAVC 23.98 fps 23.98 fps 1 2 / 1 24 fps 721 160 90 TIFF Sun 6 7 n-1 n XY 721 720 1 0 3 1
1 66 38 10 66 38 10 51 27 7 66 35 16 1930.38 6948.06 51961.44 139.83 135.25 280.71 663.79 624.89 2028.87 172.13 97.70 340.50 /4K HD HD 4K 4K 4K Adobe After Effects4K RGB 4 1 HD 4K 3840 2160 4K HD 1920 1080 16 9 Adobe After Effects Apple ProRes422 HQ Quick Time 4K 4K HD 1 4K HD 4K HD 4 6 36 1 30 / 30 / 2.4 55 55 4K 55X3 SSD Blackmagickdesign HyperDeck Studio Pro 121 cm 68 cm 55 23.98 fps 8 Topcon BM9 12 4K HD 4K 345.2 cd/m 2 1.07 cd/m 2 HD 342 cd/m 2 0.87 cd/m 2 139 lx Design Viewing Distance International Telecommunication Union Radiocommunications Sector ITU-R 9 HD3H H 10 1 1 1.0 HD 30 1.0 4K 1.5H 60 ITU-R 60
104.8 cm 2 Sony SRX-R110 SSD 585 cm 329.1 cm 4K HD 28.55 cd/m 2 0.14 cd/m 2 1 lx 55 506.6 cm 60 55 3 55 2.5 semantic differential 11 2010 12 4 3 12 2006 2 3 15 2 1 7 7 2 1. 2. 3. 4. 5. 2.6 4K 4K HD / 3 / / 36 3 9 2 3 3 3. 3.1 15 36 4.40 1 4 3 5 1 2 3 4
3 Cronbach α.94.84.67.63 3.2 4 / 4 HAD version10.40 13 / / 3 / Shaffer p <.05 3.2.1 1 2 3 4 =.94 1. 1.00.05 -.17.00 3..95.01.03 -.08 2..85 -.11 -.02.01 =.84 14. -.01.98.00 -.04 15. -.25.74 -.02 -.06 13. -.21.71 -.14.04 12..13.42.04.23 =.67 7. -.08.06.94 -.06 4..06 -.21.57.09 10. -.17 -.12.53 -.11 5..13.17.42.25 =.63 8. -.01 -.03.06.90 9..01.21.00.82 11..19.24.31 -.44 -.58.31 -.12.19.16.42 6. F 1, 73 6.30, p <.05, η p 2.08 / F 2, 146 4.35, p <.05, η p 2.06 F 1, 73 8.44, p <.01, η p 2.10 F 2, 146 34.70, p <.001, η p 2.32 / 2 / 3 F 4, 292 3.00, p <.05, η p 2.04 2 / F 2, 876 14.97, p <.001, η p 2.17 F 2, 876 3.12, p <.05, η p 2.04 / / 4K / 4K / 3.2.2 F 1, 73 6.21, p <.05, η p 2.08 / F 2, 146 7.38, p <.01, η p 2.09 F 1, 73 102.04, p <.001, η p 2.58 F 2, 146 41.02, p <.001, η p 2.36 / 3 F 4, 292 3.25, p <.05, η p 2.04 3 / F 2, 876 17.49, p <.001, η p 2.19 F 2, 876 4.49, p <.05, η p 2.06 F 2, 876 4.42, p <.05, η p 2.06 F 2, 876 5.24, p <.01, η p 2.07 /
3 / 4 / / 4K / 4K 4K 4K 4K HD 4K 4K HD 3 3.2.3 / F 2, 146 4.19, p <.05, η 2 p.05 F 2, 146 80.97, p <.001, η 2 p.53 / 3 F 4, 292 19.59, p <.001, η 2 p.21 4 / F 2, 876 8.04, p <.001, η 2 p.10 F 2, 876 5.95, p <.01, η 2 p.08 F 2, 876 4.51, p <.05, η 2 p.06 F 2, 876 15.75, p <.001, η 2 p.18 F 2, 876 93.30, p <.001, η 2 p.56 / /4K HD HD / 4K 4K / 4K HD 4K 4K 4K HD 3.2.4 / F 2, 146 25.05, p <.001, η 2 2 p.26 F 1, 73 484.68, p <.001, η p.87 F 2, 146 17.00, p <.001, η 2 p.19 / 3 F 4, 292 16.87, p <.001, η 2 p.19 5 / F 2, 876 12.24, p <.001, η 2 p.14 F 2, 876 5.04, p <.01, η 2 p.07 F 2, 876 63.53, p <.001, η 2 p.47 / / HD / HD
/ 4K 4K HD 4K 4K 3.3 4K HD 4K HD 4K HD / 12 3 1 8 bit TIFF 10 120 HDTV BT.709 RGB HD 4K 1,920 1,080 1 2,073,600 0 1 5 / -0.5 / 0.5-1 1 9 4K HD6 6 4K HD -0.5-0.25 HD 4K /9 2 / HD 4K F 1, 238 1.81, p.18, η p 2.01 2000 14 f PSP Power Spectrum Picture ln PSP f 49 P 7 9 16 / 1210P 120 HD 7 4K HD 4K HD
4K HD 4K / 49 2 F 48, 11424 5325.41, p <.001, η 2 p.96 F 48, 11424 12.05, p <.001, η 2 p.05 / 11Log f 31Log f HD 4K Fs 1, 11662 > 4.31, ps <.05 4. / 4 4.1, 4K / 4K 2001 15 1 α. / 16 23.98 fps 16 4KHD 4K 4K 4K HD 4K 4K 1 m 2 4.2
/ 4K / / HD HD / / HD HD / HD HD 4K 4K 4.3 4K 4K HD HD 4K HD 4K 4K HD HD 4K 4K 4K HD HD 4K HD 4K 4K HD HD 4K 4K 4K 4K 5. 4K 4K 4K 4K 4K 4K 23.98 fps
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2009 2009 2012 PD 2012 2015 PD 2010 2010 2012 2012. 2015 3 1990 2008 2011 2011.. 2012 2012 2013 2013