October 2024
Intermediate
240 pages
6h 57m
Japanese
Content preview from 図解まるわかり VR・AR・MRのしくみ
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74
ジェスチャー認識、アバター技術
映像でつながる
ビデオチャット技術
4-4
仮想空間内でのリアルなコミュニケーションを実現する技術
XRにおけるビデオチャットでは、遠隔地にいる人と仮想空間を共有す
ることで、実際に同じ場所にいるかのような臨場感あふれる体験ができま
す（図4-7）。例えば、離れたオフィスの同僚や取引先とXR会議を行え
ば、対面に近い感覚で交流することができます。
この技術により、参加者全員の表情や発話内容もリアルタイムに伝わる
ため、コミュニケーションの質も格段に高まります。現代では、テレワー
クやオンライン教育、遠隔医療などの分野で、このビデオチャット技術は
XRならではの価値を生み出しています。
人々の動きや表情を仮想空間に投影
仮想空間内で人のさまざまな動きや表情を再現する技術として、ジェス
チャー認識
とアバター技術が重要な役割を担っています（図4-8）。
ジェスチャー認識は、3Dセンサーやカメラを使用して、ユーザーの手
の動きや身体の動作を検出し、それをデジタルデータに変換する技術で
す。これにより、手振り1 つでオブジェクトの操作や移動、拡大縮小など
のアクションを直感的に行うことができます。さらに身体の動きに応じ
て、仮想空間内に存在するアバターを動かすこともできます。こうしたジ
ェスチャーインタフェースにより、仮想空間での動きがより自然になりま
す。
一方のアバター技術は、ジェスチャー認識で取得したデジタルデータを
用いて、ユーザーの姿勢や表情、発話内容をリアルタイムで擬人化し仮想 ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.