- 著者
- Nobuyuki Yagi Yasuhiro Itou Shuichi Fujisawa
- 出版者
- The Institute of Image Information and Television Engineers
- 雑誌
- ITE Transactions on Media Technology and Applications (ISSN:21867364)
- 巻号頁・発行日
- vol.7, no.3, pp.112-117, 2019 (Released:2019-07-01)
- 参考文献数
- 11
- 被引用文献数
- 1 2
The distance at which TV is viewed in the home is analyzed in terms of the conditions of the surroundings. Newly developed survey method makes it possible to collect a lot of reliable data at a considerably cheaper cost and in a shorter period than in a field survey although based on a questionnaire survey. The results show that the relative viewing distance is around 5 screen heights (H), which is 1 H shorter than before. This change is primarily because the screen size of TVs at home have become bigger despite that the room area has not changed. Absolute viewing distance depends on room area, but screen size does not depend on room area so much. The viewing distance is shorter than the average if the viewer is closely focused on the TV or if interactive services are frequently used.
- 著者
- Nobuyuki Yagi Norifumi Egami Naoki Shimidzu Miki Haseyama
- 出版者
- 映像情報メディア学会
- 雑誌
- ITE Transactions on Media Technology and Applications (ISSN:21867364)
- 巻号頁・発行日
- vol.1, no.1, pp.10-19, 2013 (Released:2013-01-01)
- 参考文献数
- 139
- 被引用文献数
- 2
This paper presents a survey of research trends in broadcasting technology from production to distribution and from fundamentals to applications. It briefly reviews work being done on UHDTV, 3DTV, IPTV, hybrid broadcasting, transmission technology, audio-visual coding, image sensing devices, display devices, media accessibility, content production, metadata, and content management.
1 0 0 0 OA [Survey paper] A Review of Video Retrieval Based on Image and Video Semantic Understanding
- 著者
- Miki Haseyama Takahiro Ogawa Nobuyuki Yagi
- 出版者
- 映像情報メディア学会
- 雑誌
- ITE Transactions on Media Technology and Applications (ISSN:21867364)
- 巻号頁・発行日
- vol.1, no.1, pp.2-9, 2013 (Released:2013-01-01)
- 参考文献数
- 82
- 被引用文献数
- 4 28
Research trends in new video retrieval based on image and video semantic understanding are presented in this paper. First, recent studies related to image and video semantic analysis are introduced to understand leading-edge multimedia retrieval technologies. Several works related to visualization interfaces for multimedia retrieval are also presented. Finally, trends in state-of-the-art studies and the future outlook are described.