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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176
顔認証アニメーションツール
リアルな顔の動きを
アバターに反映
7-9
AIを活用した顔認証アニメーションの可能性
顔認証アニメーションとは、人間の顔の動きをリアルタイムで認識し、
その動きをアバターに反映させる技術です（図 7-17）。5-14 で解説した
ように、これもAIを活用して顔の特徴点を検出し、表情を推定すること
で実現されます。カメラで捉えた人間の顔の映像をAIが解析し、目や鼻、
口などの位置、さらに表情の変化を追跡します。
このAIを活用することで、従来は手作業で行っていた顔の特徴点の検
出や表情の付与を自動化でき、制作にかかる時間とコストを大幅に削減で
きます。また、人間の表情の細かいニュアンスを捉え、それをアバターに
反映させることで、リアリティのある表現が可能になります。
さらに、実写とアニメーションを組み合わせたハイブリッドなキャラク
ターや、現実には存在しない架空の生物のアバターなど、創造性豊かな表
現も期待できる技術です。
主要な顔認証アニメーションツール
ここで、代 表的な顔 認証 アニメーションツールを3つ紹介します（図7-18）。
●
ARKit/ARCore：リアルタイムの顔認識と顔の特徴点検出に優れてい
る。視線方向やまばたき、頭の動きをトラッキングでき、顔の変形や
マスクのオーバーレイもできる
●
LensStudio：高度な顔認識アニメーション機能を備えており、表情の
追跡はもちろん、キャラクターの表情をユーザーの表情に同期させる
ことができる。豊富なビジュアルエフェクトとフィルターを組み合わ ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.