| Presentation | 2022-02-22 Contrastive Self-Supervised Learning Framework for Unsupervised Video Summarization Xianliang Zhang, Li Tao, Xueting Wang, Toshihiko Yamasaki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The rapid growth of video data aggravates the effort by viewers in exploring informative data. This paper presents a framework based on contrastive learning for unsupervised video summarization to help people to extract important parts in those videos. In contrastive learning, anchor-positive and anchor-negative pairs are usually employed to fulfill learning deep representation from the anchor. In our study, a positive sample by reversing the anchor video is introduced, whose summarization should also be a reversed one. Meanwhile, by destroying temporal relations in the anchor video, the intra-negative video is generated, whose summarization should be quite different from the anchor. Finally, we design our framework to explore the similarity and differences of such samples with the anchor by two proposed summary losses. Experimental evaluations on two benchmark datasets show that our proposed framework surpasses the state-of-the-art unsupervised methods in terms of F-score and correlation coefficients. Without using any annotation, our method can even outperform many supervised methods. We also show that our framework can further enhance the summarization performance by training on large-scale external data that are collected from social networks. Quantitative experiments also show that our method can be integrated into other models with better performance and quicker convergence, indicating the generality of the algorithm. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | contrastive learningvideo summarizationlarge-scale external dataquicker convergence |
| Paper # | ITS2021-44,IE2021-53 |
| Date of Issue | 2022-02-14 (ITS, IE) |
| Conference Information | |
| Committee | IE / ITS / ITE-AIT / ITE-ME / ITE-MMS |
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| Conference Date | 2022/2/21(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Image Processing, etc. |
| Chair | Kazuya Kodama(NII) / Masahiro Fujii(Utsunomiya Univ.) / Hisaki Nate(Tokyo Polytechnic Univ.) / Hiroyuki Arai(Nippon Inst. of Tech.) / Kenji Machida(NHK) |
| Vice Chair | Hiroyuki Bandoh(NTT) / Toshihiko Yamazaki(Univ. of Tokyo) / Kohei Ohno(Meiji Univ.) / Naohisa Hashimoto(AIST) / / Shogo Muramatsu(Niigata Univ.) |
| Secretary | Hiroyuki Bandoh(KDDI Research) / Toshihiko Yamazaki(Nagoya Inst. of Tech.) / Kohei Ohno(Akita Prefectural Univ.) / Naohisa Hashimoto(NIT, Tsuruoka College) / / Shogo Muramatsu(NHK) / (Hokkaido Univ.) |
| Assistant | Shunsuke Iwamura(NHK) / Shinobu Kudo(NTT) / Msataka Imao(Mitsubishi Electric) / Kenshi Saho(Toyama Prefectural Univ.) / Keiji Jimi(Gunma Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Image Engineering / Technical Committee on Intelligent Transport Systems Technology / Technical Group on Artistic Image Technology / Technical Group on Media Engineering / Technical Group on Multi-media Storage |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Contrastive Self-Supervised Learning Framework for Unsupervised Video Summarization |
| Sub Title (in English) | |
| Keyword(1) | contrastive learningvideo summarizationlarge-scale external dataquicker convergence |
| 1st Author's Name | Xianliang Zhang |
| 1st Author's Affiliation | The University of Tokyo(UTokyo) |
| 2nd Author's Name | Li Tao |
| 2nd Author's Affiliation | The University of Tokyo(UTokyo) |
| 3rd Author's Name | Xueting Wang |
| 3rd Author's Affiliation | CyberAgent AI Lab(CyberAgent AI Lab) |
| 4th Author's Name | Toshihiko Yamasaki |
| 4th Author's Affiliation | The University of Tokyo(UTokyo) |
| Date | 2022-02-22 |
| Paper # | ITS2021-44,IE2021-53 |
| Volume (vol) | vol.121 |
| Number (no) | ITS-373,IE-374 |
| Page | pp.pp.115-120(ITS), pp.115-120(IE), |
| #Pages | 6 |
| Date of Issue | 2022-02-14 (ITS, IE) |