{"id":7069,"date":"2021-12-17T11:46:39","date_gmt":"2021-12-17T02:46:39","guid":{"rendered":"https:\/\/www.waseda.jp\/fsci\/wise\/?p=7069"},"modified":"2022-10-20T14:40:14","modified_gmt":"2022-10-20T05:40:14","slug":"%e5%bd%93%e3%81%9f%e3%82%8a%e5%89%8d%e3%81%ab%e5%88%a9%e7%94%a8%e3%81%95%e3%82%8c%e3%82%8b%e7%94%bb%e5%83%8f%e9%80%9a%e4%bf%a1%e6%8a%80%e8%a1%93%e3%81%a7%e7%a4%be%e4%bc%9a%e3%81%ab","status":"publish","type":"post","link":"https:\/\/www.waseda.jp\/fsci\/wise\/other\/2021\/12\/17\/7069\/","title":{"rendered":"\u201c\u5f53\u305f\u308a\u524d\u201d\u306b\u5229\u7528\u3055\u308c\u308b\u753b\u50cf\u901a\u4fe1\u6280\u8853\u3067\u793e\u4f1a\u306b\u5927\u304d\u304f\u8ca2\u732e\u3059\u308b \/ Making Contributions to Smart Society through Visual Communication Technology Used as &#8220;New Normal&#8221;\u3010\u57fa\u5e79\u7406\u5de5\u5b66\u90e8 \u60c5\u5831\u901a\u4fe1\u5b66\u79d1\u30fb\u7532\u85e4\u4e8c\u90ce\u6559\u6388\u3011"},"content":{"rendered":"<p><img loading=\"lazy\" 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loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-7079 aligncenter\" src=\"https:\/\/www.waseda.jp\/fsci\/wise\/assets\/uploads\/2021\/12\/01-610x458.jpg\" alt=\"\" width=\"610\" height=\"458\" srcset=\"https:\/\/www.waseda.jp\/fsci\/wise\/assets\/uploads\/2021\/12\/01-610x458.jpg 610w, https:\/\/www.waseda.jp\/fsci\/wise\/assets\/uploads\/2021\/12\/01-360x270.jpg 360w, https:\/\/www.waseda.jp\/fsci\/wise\/assets\/uploads\/2021\/12\/01-768x576.jpg 768w, https:\/\/www.waseda.jp\/fsci\/wise\/assets\/uploads\/2021\/12\/01-940x705.jpg 940w, https:\/\/www.waseda.jp\/fsci\/wise\/assets\/uploads\/2021\/12\/01-720x540.jpg 720w, https:\/\/www.waseda.jp\/fsci\/wise\/assets\/uploads\/2021\/12\/01.jpg 2000w\" sizes=\"auto, (max-width: 610px) 100vw, 610px\" 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loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-7083 aligncenter\" src=\"https:\/\/www.waseda.jp\/fsci\/wise\/assets\/uploads\/2021\/12\/03-610x458.jpg\" alt=\"\" width=\"610\" height=\"458\" srcset=\"https:\/\/www.waseda.jp\/fsci\/wise\/assets\/uploads\/2021\/12\/03-610x458.jpg 610w, https:\/\/www.waseda.jp\/fsci\/wise\/assets\/uploads\/2021\/12\/03-360x270.jpg 360w, https:\/\/www.waseda.jp\/fsci\/wise\/assets\/uploads\/2021\/12\/03-768x576.jpg 768w, https:\/\/www.waseda.jp\/fsci\/wise\/assets\/uploads\/2021\/12\/03-940x705.jpg 940w, https:\/\/www.waseda.jp\/fsci\/wise\/assets\/uploads\/2021\/12\/03-720x540.jpg 720w, https:\/\/www.waseda.jp\/fsci\/wise\/assets\/uploads\/2021\/12\/03.jpg 2000w\" sizes=\"auto, (max-width: 610px) 100vw, 610px\" \/><\/p>\n<h3>\u300c\u6642\u4ee3\u9045\u308c\u300d\u306b\u306a\u3089\u306a\u3044\u3088\u3046\u306b\u3001\u3055\u3089\u306a\u308b\u8ca2\u732e\u3092<\/h3>\n<p>\u3060\u304c\u3001\u7532\u85e4\u6559\u6388\u306f\u300c\u6e80\u8db3\u3057\u3061\u3083\u3046\u3068\u6642\u4ee3\u9045\u308c\u306b\u306a\u308b\u4e16\u754c\u3002\u300d\u3068\u3082\u7d9a\u3051\u308b\u3002\u60c5\u5831\u7cfb\u306e\u6280\u8853\u306f\u30b5\u30a4\u30af\u30eb\u304c\u901f\u304f\u30015\u5e74\u524d\u306b\u8003\u3048\u3066\u3044\u305f\u3053\u3068\u304c\u6642\u4ee3\u9045\u308c\u306b\u306a\u308b\u3069\u3053\u308d\u304b\u3001\u300c2\u30013\u5e74\u5f8c\u306b\u306f\u5b9f\u73fe\u3057\u3066\u3001\u6b21\u306b\u3044\u3063\u3066\u3044\u308b\u3002\u300d\uff08\u7532\u85e4\u6559\u6388\uff09\u3068\u3044\u3046\u30da\u30fc\u30b9\u3067\u7269\u4e8b\u304c\u9032\u3093\u3067\u3044\u304f\u3068\u3044\u3046\u3002\u3060\u304b\u3089\u60c5\u5831\u53ce\u96c6\u306f\u6b20\u304b\u305b\u306a\u3044\u3002<\/p>\n<p>\u300c\u534a\u5c0e\u4f53\u306f\u3044\u3064\u3082\u30a6\u30a9\u30c3\u30c1\u3057\u3066\u3044\u307e\u3059\u3002\u91cf\u5b50\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u3057\u3066\u3082\u3001\u4f7f\u3048\u308b\u6280\u8853\u304c\u3042\u3063\u305f\u3089\u3069\u3093\u3069\u3093\u9069\u7528\u3057\u3066\u3001\u3068\u3044\u3046\u30b9\u30bf\u30f3\u30b9\u3067\u3059\u3002\u300d\uff08\u7532\u85e4\u6559\u6388\uff09<\/p>\n<p>\u3053\u308c\u304b\u3089\u306e\u30ad\u30fc\u30ef\u30fc\u30c9\u3068\u3057\u3066\u3001\u7532\u85e4\u6559\u6388\u306f\u300cIoT\u300d\u300cAR\/VR\u300d\u300c360\u5ea6\u6620\u50cf\u300d\u300c\u30dc\u30ea\u30e5\u30e1\u30c8\u30ea\u30c3\u30af\u30d3\u30c7\u30aa\u300d\u306a\u3069\u3092\u6319\u3052\u3066\u304f\u308c\u305f\u3002<\/p>\n<p>\u300c\u6700\u8fd1\u306f\u753b\u50cf\u3060\u3051\u3058\u3083\u306a\u304f\u3001IoT\u3001\u30bb\u30f3\u30b7\u30f3\u30b0\u306e\u65b9\u306b\u3082\u624b\u3092\u5e83\u3052\u3066\u3044\u307e\u3059\u3002\u6839\u3063\u3053\u306f\u753b\u50cf\u901a\u4fe1\u3067\u3059\u304c\u3001\u305d\u308c\u306b\u8ca2\u732e\u3059\u308b\u6280\u8853\u3060\u3063\u305f\u3089\u3069\u3093\u3069\u3093\u53d6\u308a\u5165\u308c\u3066\u3044\u304d\u305f\u3044\u3067\u3059\u306d\u3002\u300d\uff08\u7532\u85e4\u6559\u6388\uff09<\/p>\n<p>\u6700\u7d42\u7684\u306b\u306f\u300c\u7a7a\u9593\u306e\u5171\u6709\u300d\u3092\u76ee\u6307\u3057\u305f\u3044\u3068\u8a9e\u308b\u7532\u85e4\u6559\u6388\u3002\u30b9\u30c8\u30ea\u30fc\u30c8\u30d3\u30e5\u30fc\u306a\u3069\u306e\u30b5\u30fc\u30d3\u30b9\u3067\u534a\u3070\u3067\u304d\u3066\u3044\u308b\u3068\u611f\u3058\u308b\u3053\u3068\u3082\u3042\u308b\u304c\u3001\u3082\u3063\u3068\u81e8\u5834\u611f\u3092\u6301\u305f\u305b\u308b\u3088\u3046\u306a\u5c55\u958b\u3092\u8003\u3048\u3066\u3044\u308b\u3002\u3053\u308c\u307e\u3067\u57f9\u3063\u3066\u304d\u305f\u753b\u50cf\u901a\u4fe1\u6280\u8853\u306b\u3055\u3089\u306b\u78e8\u304d\u3092\u304b\u3051\u3001\u65b0\u3057\u3044\u6280\u8853\u3082\u53d6\u308a\u8fbc\u3093\u3067\u3001\u753b\u50cf\u901a\u4fe1\u306e\u5206\u91ce\u3067\u3055\u3089\u306a\u308b\u8ca2\u732e\u3092\u76ee\u6307\u3057\u3066\u3044\u308b\u3002<\/p>\n<h5>\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb<\/h5>\n<p>\u7532\u85e4\u4e8c\u90ce \u6559\u6388\uff08\u57fa\u5e79\u7406\u5de5\u5b66\u90e8 \u60c5\u5831\u901a\u4fe1\u5b66\u79d1\uff09<\/p>\n<p>\u304b\u3063\u3068\u3046\u30fb\u3058\u308d\u3046\uff0f1964\u5e74\u751f\u307e\u308c\u300287\u5e74\u6771\u4eac\u5927\u5b66\u5de5\u5b66\u90e8\u96fb\u6c17\u5de5\u5b66\u79d1\u5352\u300292\u5e74\u6771\u4eac\u5927\u5b66\u5927\u5b66\u9662\u5de5\u5b66\u7cfb\u7814\u7a76\u79d1\u96fb\u5b50\u5de5\u5b66\u5c02\u653b\u535a\u58eb\u8ab2\u7a0b\u4fee\u4e86\u3002\u535a\u58eb\uff08\u5de5\u5b66\uff09\u3002\u65e5\u672c\u96fb\u6c17\u682a\u5f0f\u4f1a\u793e\u5165\u793e\u300296\uff5e97\u5e74\u7c73\u56fd\u30d7\u30ea\u30f3\u30b9\u30c8\u30f3\u5927\u5b66\u5ba2\u54e1\u7814\u7a76\u54e1\u300299\u5e74\u65e9\u7a32\u7530\u5927\u5b66\u7406\u5de5\u5b66\u90e8\u96fb\u5b50\u30fb\u60c5\u5831\u901a\u4fe1\u5b66\u79d1\u52a9\u6559\u6388\u30022004\u5e74\u304b\u3089\u73fe\u8077\u3002<\/p>\n<p>\u6240\u5c5e\u5b66\u4f1a<br \/>\n\u96fb\u5b50\u60c5\u5831\u901a\u4fe1\u5b66\u4f1a\u3001\u60c5\u5831\u51e6\u7406\u5b66\u4f1a\u3001\u6620\u50cf\u60c5\u5831\u30e1\u30c7\u30a3\u30a2\u5b66\u4f1a\u3001IEEE\u3001ACM<\/p>\n<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/vwcY1epCj4w\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h3>Promoting Research and Development in Both Image Processing and Networking<\/h3>\n<p>To prevent the spread of COVID-19, working from home, teleworking, online classes, etc. have become the new normal. As &#8220;stay home&#8221; time has increased, usage of teleconferencing systems like Zoom and on-demand streaming services like Netflix has spread.<\/p>\n<p>Professor Jiro Katto, belonging to the Department of Communications and Computer Engineering at the School of Fundamental Science and Engineering, is researching and developing the visual communication technology used in visual services as above. After completing the Graduate School of Engineering at the University of Tokyo, Prof. Katto joined NEC Corporation (NEC), where he was involved in digitalizing analog broadcasting and developing teleconferencing systems, and he also participated in international standardization activities such as ITU-T and MPEG, that tried to standardize video phones over the third-generation mobile network, known as FOMA in Japan.<\/p>\n<p>His main job at NEC was image compression, and after moving to the university, he strengthened his research on the networking side. The strength of the Katto Laboratory is consistent research and development from both the visual and networking sides, from image signal processing to network control technology.<\/p>\n<p>From 2018 to 2020, he focused on a Smart Bicycle System, where various sensors (such as cameras and LiDARs) were mounted on e-bikes and designed to automatically record images of their surroundings. By processing the acquired images based on AI, the system can automatically detect road damages, elevation curbs, and so on. This is also an effective technology for COVID-19 prevention as it can detect areas crowded with people.<\/p>\n<p>From 2021, network latency reduction will be a new theme for Prof. Katto. In terms of delay, analog video has been preferable because digital video inevitably suffers from delays. On the other hand, as network evolution like 5G\/B5G and high frame rate video can be expected, he is working on plans to reduce latency in digital video systems.<\/p>\n<p>In addition to these, in the past he worked on a content delivery system that utilizes trains with time tables. This was done by placing servers in two locations (a station and a train) and then dividing the content into two stages and caching it. He has also been working on underwater communication technology that uses sound waves to transmit images, etc.<\/p>\n<h3>Using AI to Improve Functionality<\/h3>\n<p>He is currently focusing on image compression using AI. Although it is not yet popular in Japan, this field is getting worldwide attention and its community is growing steadily.<\/p>\n<p>&#8220;Object recognition is a major example of how AI contributes to images, but that framework itself is effective in other ways. It&#8217;s effective in a wide range of image processing technologies, including data compression and noise reduction,&#8221; said Prof. Katto.<\/p>\n<p>He also said that the power of AI is tremendous and gave an example: if AI is applied to an experiment on improving image quality, it can easily surpass prior work. &#8220;Today, deep learning is widely used, especially in international academic societies. It really is a breakthrough,&#8221; remarked Prof. Katto.<\/p>\n<p>In addition to image compression, the Katto Laboratory is also working to improve communication networks&#8217; reliability and functions by using AI.<\/p>\n<p>Many people have likely experienced &#8220;freeze&#8221; of video streaming: where videos stop in Zoom or YouTube. Introducing AI into the communication network will help avoid this situation, he said. More specifically, data (such as throughput, base station switching, and received power) can be acquired chronologically during communication for future predictions. When the communication environment is likely to be poor, the rate is lowered. When it is effective, prefetching, etc. can be used to avoid freezing and lowered video quality.<\/p>\n<p>As video accounts for about 80 percent of internet traffic, image compression technology has made a significant contribution to the world through services like Zoom and Netflix. &#8220;This is a shared pride among people involved in image compression and video communication systems. Each contribution may be small, but there is a sense of satisfaction in what we have worked for 30 years and the fact that it has become the new normal in the world,&#8221; said Prof. Katto.<\/p>\n<h3>Contribute More to Avoid Becoming Outdated<\/h3>\n<p>However, &#8220;Technology becomes easily outdated,&#8221; he continued. The information technology cycle is very fast, and many ideas five years ago are becoming outdated, &#8220;we realize what happened in the following two to three years, and everyone is moving on to the next thing,&#8221; Prof. Katto said of the pace things are moving at. Therefore, collecting new information is essential.<\/p>\n<p>&#8220;I&#8217;m always watching semiconductors. Even in quantum computing, the stance is that if there is a useable technology, it can be used to application development,&#8221; he said.<\/p>\n<p>Prof. Katto cited &#8220;IoT,&#8221; &#8220;AR\/VR,&#8221; &#8220;360-degree video,&#8221; &#8220;volumetric video,&#8221; and others as current buzzwords.<\/p>\n<p>&#8220;We have recently expanded our research beyond images to also include the IoT and sensing fields. Our roots are in visual communication, but I would like to incorporate more technologies that can contribute to that,&#8221; he shared.<\/p>\n<p>Finally, he said that one of his goals is to &#8220;share space.&#8221; While some services like Street View may feel like they are only halfway complete, he wants to develop them to be more immersive. Another of his goals is to further refine the visual communication technology fostered thus far, incorporate new technologies, and contribute more to the image communication field.<\/p>\n<h5>Profile<\/h5>\n<p>Professor Jiro Katto<br \/>\nDepartment of Communications and Computer Engineering, School of Fundamental Science and Engineering<\/p>\n<p>Born in 1964, Dr. Katto graduated from the Department of Electrical Engineering in the Faculty of Engineering at the University of Tokyo in 1987, and he obtained his Ph.D. in engineering from the Department of Electronics in the Graduate School of Engineering at the University of Tokyo in 1992. He then joined NEC Corporation. He was a visiting research fellow at Princeton University in the USA from 1996 to 1997. In 1999, he became Assistant Professor at the Department of Electronics, Information and Communication in the School of Science and Engineering. He has been in his current position since 2004.<\/p>\n<p>Academic affiliations:<br \/>\nInstitute of Electronics, Information and Communication Engineers; Information Processing Society of Japan; The Institute of Image Information and Television Engineers; IEEE; ACM<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u753b\u50cf\u3068\u901a\u4fe1\u306e\u4e21\u9762\u3067\u7814\u7a76\u30fb\u958b\u767a\u3092\u9032\u3081\u308b \u65b0\u578b\u30b3\u30ed\u30ca\u30a6\u30a4\u30eb\u30b9\u306e\u611f\u67d3\u62e1\u5927\u9632\u6b62\u306e\u305f\u3081\u3001\u5728\u5b85\u52e4\u52d9\u3084\u30c6\u30ec\u30ef\u30fc\u30af\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u6388\u696d\u306a\u3069\u304c\u5f53\u305f\u308a\u524d\u3068\u306a\u3063\u305f\u3002\u3044\u308f\u3086\u308b\u201c\u304a\u3046\u3061\u6642\u9593\u201d\u304c\u5897\u3048\u308b\u4e2d\u3067\u5229\u7528\u304c\u62e1\u5927\u3057\u305f\u306e\u304c\u3001Zoom\u306e\u3088\u3046\u306a\u30c6\u30ec\u30d3\u4f1a\u8b70\u30b7 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":7091,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[96],"tags":[28],"class_list":["post-7069","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-other","tag-research"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.waseda.jp\/fsci\/wise\/wp-json\/wp\/v2\/posts\/7069","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.waseda.jp\/fsci\/wise\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.waseda.jp\/fsci\/wise\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.waseda.jp\/fsci\/wise\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.waseda.jp\/fsci\/wise\/wp-json\/wp\/v2\/comments?post=7069"}],"version-history":[{"count":2,"href":"https:\/\/www.waseda.jp\/fsci\/wise\/wp-json\/wp\/v2\/posts\/7069\/revisions"}],"predecessor-version":[{"id":8161,"href":"https:\/\/www.waseda.jp\/fsci\/wise\/wp-json\/wp\/v2\/posts\/7069\/revisions\/8161"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.waseda.jp\/fsci\/wise\/wp-json\/wp\/v2\/media\/7091"}],"wp:attachment":[{"href":"https:\/\/www.waseda.jp\/fsci\/wise\/wp-json\/wp\/v2\/media?parent=7069"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.waseda.jp\/fsci\/wise\/wp-json\/wp\/v2\/categories?post=7069"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.waseda.jp\/fsci\/wise\/wp-json\/wp\/v2\/tags?post=7069"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}