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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82
オート追跡撮影、PTZカメラ
オート追跡で撮影する技術
4-8
自由な動作性と表現力の向上
オート追跡撮影は、カメラが自動的にユーザーの動きを追いかけ、最適
な構図で撮影を行う技術です（図4-15）。オート追跡撮影を活用すること
で、ユーザーは手動でカメラをコントロールする必要がなくなり、空いた
両手を自由に動かすことができます。例えば、XRゲームで剣を手に持ち
ながら戦闘を行う際、カメラはプレイヤーの動きに合わせて自動的に構図
を整えます。すると、ユーザーはより戦闘に集中することができ、臨場感
あふれるゲーム体験を楽しむことができます。
さらに、XRを使ったコミュニケーションにも大きな価値をもたらしま
す。遠隔会議やオンライン会話において、カメラが発話者を自動で追跡す
るため、相手に対する自然な表情を伝えることができるようになります。
アバターを介したコミュニケーションの質が大幅に高まり、まるで対面し
ているかのような臨場感が生まれます。
このようにXR空間において自由な動作性と表現力の向上をもたらし、
リアルな表情やジェスチャーを自在に体現できるようになります。
オート追跡撮影を実現する手段
オート追跡撮影を実現する手段には、PTZ（Pan/Tilt/Zoom）カメラの
活用があります。PTZカメラとは、パン（水平方向の回転）、チルト（垂
直方向の回転）、ズーム（拡大・縮小）の3 つの動作を電子制御で自在に
行えるカメラシステムです（図4-16）。PTZカメラを使うことで自動的に
ユーザーの動きをリアルタイムで捉え、カメラの向きやズームの度合いを ...
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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.