This online course introduces the fundamentals of video capture, encoding, compression, storage and transmission for engineers and technicians in the media technology, broadcasting and telecommunications sectors.
The course includes the advantages of the digital representation of video, a comparison of standard and high definition TV, methods of representing colour information in a video signal, the principles and capabilities of MPEG video compression, the Digital Video Broadcast (DVB) broadcast formats, the roles and characteristics of various digital video interfaces and the role of the various categories of metadata in media asset management.
This e-learning course has a comprehensive range of interactive training facilities to provide a total learning experience. Technical words and acronyms have links to an online glossary giving an instant explanation. Interactive simulations explain concepts and systems operation.
Onscreen question sessions at the end of each module test understanding and provide further guidance and instruction. Revision links provide quick access to subjects previously discussed and relevant to the module being studied. Once studied as a structured, assessed course, the content can be browsed for revision or reference.
By the end of this course you will be able to:
- describe the principles of interlaced and progressive scanning, and explain the significance of the video aspect ratio.
- compare the PAL, SECAM and NTSC TV systems standards, and describe the role of analogue video interfaces inc. composite, SCART and S-video.
- describe the advantages of the digital representation of video and the processes involved in encoding an analogue signal with reference to the ITU standard BT.601.
- describe methods of representing colour information in a video signal with reference to RGB, luminance and chroma components and the 4:2:0 and 4:2:2 formats.
- explain the factors that affect the resolution of a video image and compare standard definition (SDTV) and high definition television (HDTV) formats.
- describe the principles and capabilities of MPEG video compression with reference to I, B and P frames and the concept and structure of a Group Of Pictures (GOP).
- compare the bit rates necessary to transmit standard definition and high definition television when uncompressed and when using MPEG-2 and MPEG-4 compression.
- describe the capabilities and applications of various audio codecs including MP2, AAC and AC-3.
- describe the roles and characteristics of various digital video interfaces.
- describe the Digital Video Broadcast (DVB) broadcast formats and the advantages of the second generation of Terrestrial DVB (DVB-T).
- describe methods of ensuring audio and video recordings retain their time relationship.
- describe the advantages of a combination of digital encoding, digital file storage and computer-based processing of media.
- describe the storage capacity and applications of the various devices used to store encoded media inc. video cassette formats, optical discs and Flash memory devices.
- describe the role of the various categories of metadata in media asset management.
- describe the role of the MXF and AAF file formats.
- describe the structure of an MXF file with reference to the inclusion of metadata and the logical representation of media tracks and their timing relationship.
1: Course Introduction
2: Video fundamentals
3: Television standards
4: Media compression
5: Video interfaces
6: Media synchronisation
7: Working with video