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object but receives motion information from the projected           REFERENCES
           pattern. Since the color and form components are stationary,
           they are physically inconsistent with the motion component.   [1] M. Nakano, A. Kimura, T. Yamada, and N. Ueda,
           However, when the brain integrates color, form, and motion   “Baxter Permutation Process,” Proc. of the 34th
           into a coherent scene  representation,  it automatically   Conference on Neural Information Processing
           resolves such inconsistency across attributes. Thanks to this   Systems (NeurIPS 2020), Dec. 2020.
           correction process, human observers perceive  the pattern
           produced by Hengento as if the color and form components   [2] Y. Ohishi, A. Kimura, T. Kawanishi, K. Kashino,
           of the static object were moving along with the projected   D. Harwath, and J. Glass, “Pair Expansion for
           grayscale movements. Unlike typical  projection mapping,   Learning Multilingual Semantic Embeddings using
           Hengento  works well with  a wide range  of  projection   Disjoint Visually-grounded Speech Audio
           conditions under natural  ambient  illumination. With  this   Datasets,” in Proc. Interspeech 2020.
           technology, a hanging portrait may suddenly smile back at
           you.                                                   [3] Wearable Acoustic Sensor Array System Featuring
                                                                     Remote Transmission of Body Sounds:
           More  recently, another illusion-based technique named    http://www.brl.ntt.co.jp/E/2020/11/latest_topics_2
           Danswing Papers (Danswing is a combined word of dance     02011171924.html.
           and swing) was proposed [14]. Here, by adding particular
           patterns of luminance contours to a printed object and by   [4] Y. Okumura, Y. Kanakogi, T. Kobayashi, and S.
           placing it on a display with dynamic luminance changes, the   Itakura, “Ostension Affects Infant Learning More
           printed object appears to move. While the illusion of motion   Than Attention,” Cognition, Vol. 195, 104082, Feb.
           in the previous approach was restricted to rectangles, the new   2020.
           technique is  applied to  objects with complex shapes.
           Moreover, it can give the impression of an object having not   [5] T. Hattori, T. Kobayashi, S. Fujita, Y. Okumura,
           only horizontal translations but also rotations and expansion.   and K. Aoyama, “Pitarie: Picture Book Search with
           Danswing Papers  were  nominated as one of the top  10    Interdisciplinary Approach,” NTT Technical
           finalists at the Best Illusion of the Year Contest in 2018. For   Review, Vol. 14, No. 7, 2016.
           those interested in illusions, the “Illusion Forum” website
           provides information on a variety of illusions that can make   [6] Press release issued by NTT, “AI Achieved a Score
           people doubt their own eyes and ears [15].                of 185 on the English Written Exam of the National
                                                                     Center Test for University Admissions in 2019,”
                                                                     Nov. 18, 2019:
                                                                     https://www.ntt.co.jp/news2019/1911e/191118a.ht
                                                                     ml.

                                                                  [7] R. Higashinaka, M. Mizukami, H. Kawabata, E.
                                                                     Yamaguchi, N. Adachi, and J. Tomita, “Role play-
                                                                     based question-answering by real users for building
                                                                     chatbots with consistent personalities,” in Proc. 19th
                       Figure 10 – Danswing Papers                   Annual SIGdial Meeting on Discourse and
                                                                     Dialogue, 2018.
                          7.  CONCLUSION
                                                                  [8] Press release issued by NTT, “Starting a Joint
           In this article, I introduced key activities at NTT CS Labs in   Experiment with Seika Town on a Conversational
           pursuit  of  the essence of  communication with  the  aim of   AI System,” July 3, 2020 (in Japanese):
           achieving communication that reaches the heart,  or more   https://www.ntt.co.jp/news2020/2007/200703a.ht
           exactly, that reaches out and touches someone’s heart. The   ml.
           way we interact with  other  people is changing due to
           countermeasures and restrictions related to the COVID-19   [9] Mega-Futuristic Experiential Public Telephone
           pandemic. It is especially necessary at this time to pursue the   (versions 3 and 4) @ Niconico Chokaigi 2015:
           possibilities of new media that leverage the five senses while   https://youtu.be/O7VZ7TMWmPs.
           identifying and solving any problem that may arise in this
           pursuit. We should challenge the so-called technical limits   [10] Tactile TV:
           toward approaching human intelligence and, at the same time,   https://www.ntticc.or.jp/en/archive/works/tactile-tv/.
           strive to obtain a new understanding of what it means to be
           human by  incorporating diverse points  of  view from  the
           social sciences, philosophy, and other fields.








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