| Presentation | 2003/7/18 Lecture Video Segmentation derived from speech using ICA Asuka SUMIDA, Noboru KANEDERA, Jyun JIKEYA, Takao IKEHATA, Tetsuo FUNADA, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a method of segmentation that segments lecture video material into video scenes based on speech signals for creation of educational video contents. To represent subtopics of video scenes, the text recognized by ASR from a lecture speech was converted into an index using independent component analysis (ICA) instead of conventional TF-IDF. This research attempted a method of segmentation using dynamic programming that minimizes the sum of cosine distances between adjacent indexes that represent subtopics of video scenes. The validity of the proposed method was evaluated using a sample lecture video of approximately 60 minutes. Results indicated that the proposed method using ICA obtained approximately 96% recall without ASR errors. The method of segmentation using ICA was much faster than the method using TF-IDF because the size of the index using ICA was smaller than that of TF-IDF. In addition, this research investigated how ASR errors affect scene segmentation. The recall was more than approximately 70% when the word accuracy by ASR was more than approximately 30%. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Video Segmentation / Educational video material / ICA / Automatic speech recognition |
| Paper # | SP2003-61 |
| Date of Issue |
| Conference Information | |
| Committee | SP |
|---|---|
| Conference Date | 2003/7/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Speech (SP) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Lecture Video Segmentation derived from speech using ICA |
| Sub Title (in English) | |
| Keyword(1) | Video Segmentation |
| Keyword(2) | Educational video material |
| Keyword(3) | ICA |
| Keyword(4) | Automatic speech recognition |
| 1st Author's Name | Asuka SUMIDA |
| 1st Author's Affiliation | Ishikawa National College of Technology() |
| 2nd Author's Name | Noboru KANEDERA |
| 2nd Author's Affiliation | Ishikawa National College of Technology |
| 3rd Author's Name | Jyun JIKEYA |
| 3rd Author's Affiliation | Ishikawa National College of Technology |
| 4th Author's Name | Takao IKEHATA |
| 4th Author's Affiliation | Ishikawa National College of Technology |
| 5th Author's Name | Tetsuo FUNADA |
| 5th Author's Affiliation | Faculty of Engineering, Kanazawa University |
| Date | 2003/7/18 |
| Paper # | SP2003-61 |
| Volume (vol) | vol.103 |
| Number (no) | 220 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |