第一章 多媒体技术初识 Multimedia technology & application
本章学习目标
掌握：媒体，多媒体，多媒体技术的基本概念
了解：多媒体技术的主要处理对象
了解：多媒体技术的关键技术
了解：多媒体系统的构成
理解：多媒体技术的应用领域及未来发展趋势
媒体Media
信息的载体，
承载信息、储存信息、呈现信息、处理信息、传递信息时，都需要载体。
生活中的媒体
1.传统的四大媒体：报纸、电视、广播、杂志。
2.户外媒体：广告牌、路牌灯箱、户外LED媒体。
3.网络媒体(新媒体的一种)
4.新媒体（除了互联网，还包含了卫星，手机，智能电视）
感觉媒体 perception medium
在多媒体技术领域，媒体是指直接作用于人的感觉器官，使人产生直觉感觉的媒体，比如引起听觉反应的声音，引起视觉反应的图像等。
Perception media refers to the way individuals receive and interpret media messages, whether it's through a website, social media, or any other form of communication. This includes how we understand, evaluate, and respond to information conveyed through media, which can be influenced by our personal biases, experiences, and cultural backgrounds. Understanding how people perceive media is important for marketers, advertisers, and media companies because it can impact how effective their messages are in reaching and resonating with their target audience.
5 senses 五大感官
The five senses are sight, hearing, taste, smell, and touch.
视觉器官(70%-80%)，听觉器官(10%)，味觉器官，嗅觉器官，触觉器官
这些直接作用于人的五大感官，使人产生直接感觉的文字、图形、图像、声音，动画，视频、味道、温度、气味等，就是多媒体技术领域里所说的“媒体”。
多媒体Multimedia
Multimedia refers to content that uses a combination of different forms of media such as text, graphics, audio, video, and animation to convey information or entertainment. It can be found in various mediums, including television, movies, websites, mobile applications, and computer programs. Multimedia allows information to be effectively presented in a more engaging format, making it more appealing and accessible to a wider audience. It is a powerful tool in education, advertising, marketing, and entertainment industries, and continues to evolve with advancements in technology.
概念：是融合两种或者两种以上感觉媒体的一种人机交互式信息交流和和传播媒体，是多种媒体信息的综合。
当计算机能够像人类一样拥有多种感知信息的途径，并可以把两种或者两种以上感觉媒体融合到一起，形成多种感觉媒体综合的表现形式时，就可以称其为“多媒体”了。
多媒体技术Multimedia technology
概念：将文字、图形，图像，动画，声音和视频等多种媒体信息通过计算机进行数字化采集、获取、压缩或者解压缩、编辑、存储等加工处理，使多种媒体信息建立逻辑连接，集成为一个系统并具有交互性。
多媒体计算机与多媒体系统
多媒体计算机是在普通个人计算机的基础上配备相应的媒体外设而构成的。
多媒体计算机能够播放视频、声音、图形图像、动画或文本，也能够控制诸如录放像机、光驱，合成器和摄像机之类的外延设备。
多媒体系统
多媒体硬件系统，
多媒体操作系统，
多媒体处理工具软件， 比如create cloud
用户应用软件。
Adobe Creative Cloud 适用于团队和商业的Creative Cloud创意应用软件 Adobe中国官方网站
Adobe Creative Cloud is a set of applications and services from Adobe Inc. that gives subscribers access to a collection of software used for graphic design, video editing, web development, photography, along with a set of mobile applications and also some optional cloud services.
System requirements | Adobe Creative Suite Master Collection
Windows
- Intel® Pentium® 4 or AMD Athlon® 64 processor with 64-bit support; Intel Core™2 Duo or AMD Phenom® II processor required for Premiere Pro, After Effects, and Encore; Intel Core i7 processor required for SpeedGrade
- Microsoft® Windows® XP with Service Pack 3 or Windows 7 with Service Pack 1; Windows 7 with Service Pack 1 (64 bit) required for Premiere Pro, After Effects and Encore; Windows 7 with Service Pack 1 required for SpeedGrade. See the CS6 FAQ for more information about Windows support.
- 2GB of RAM (4GB recommended) for 32 bit; 4GB of RAM (8GB recommended) for 64 bit
- 14.5GB of available hard-disk space for installation; additional free space required during installation (cannot install on removable flash-based storage devices)
- Additional disk space required for disk cache, preview files, and other working files; 10GB recommended
- 1280×900 display with 16-bit color and 512MB of VRAM; 1680×1050 display required and second professionally calibrated viewing display recommended for Speedgrade
- OpenGL 2.0-capable system
- Sound card compatible with ASIO protocol or Microsoft Windows Driver Model
- DVD-ROM drive compatible with dual-layer DVDs (DVD+-R burner for burning DVDs; Blu-ray burner for creating Blu-ray Disc media)
- Java™ Runtime Environment 1.6 (included)
- Eclipse™ 3.7 (for plug-in installation of Flash Builder); the following distributions are supported: Eclipse IDE for Java EE and Java Developers; Eclipse Classic, Eclipse for PHP Developers
- QuickTime 7.6.6 software required for QuickTime features, multimedia, and HTML5 media playbackOptional: Adobe-certified GPU card for GPU-accelerated performance in Premiere Pro; see the latest list of supported cards
- Optional: Adobe-certified GPU card for GPU-accelerated ray-traced 3D renderer in After Effects; see the latest list of supported cards
- Optional: Tangent CP200 family or Tangent Wave control surface for Speedgrade
- Optional: For SDI output, NVIDIA Quadro SDI Output card required for Speedgrade
- Optional: 7200 RPM or faster hard drive (multiple fast disk drives, preferably RAID 0 configured, recommended) for video products
- Broadband Internet connection and registration are required for software activation, validation of subscriptions, and access to online services.* Phone activation is not available.
All Apps includes over 20 Creative Cloud apps and services. So you can make amazing designs, videos, marketing materials, and more. And keep on growing creatively and building your skills.
最流行的
01 audio
Audition
02 image
Photoshop
03 Animation
Animate
多媒体技术的关键技术
数据压缩与编码技术
数字音频技术
数字图像技术
数字视频技术
多媒体通信技术
多媒体数据库技术
超文本和超媒体技术
虚拟现实技术
多媒体技术的应用领域
1.教育（形象教学，模拟展示）
2.商业广告（特技合成，大型展示）
3.影视娱乐业（电影特技，变形效果）
4.医疗（远程诊断，远程手术）
5.旅游（经典展示）
6.人工智能模拟（生物、人类智能模拟）
7.办公自动化（演示文稿，图文编辑）
多媒体技术的发展方向
一、网络化发展趋势，与宽带网络通信等技术相互结合，使多媒体技术进入科研设计、企业管理、办公自动化、远程教育、远程医疗、检索咨询、文化娱乐、自动测控等领域。
二、多媒体终端的部件化、智能化和嵌入化，提高计算机系统本身的多媒体性，开发人工智能。
