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MEE: Video principles for engineers
This online course introduces the fundamentals of video capture, compression, storage and transmission for engineers and technicians in the media technology, broadcasting and telecommunications sectors.
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This course is aimed at those who are responsible for the technical infrastructure in digital video production, post-production and transmission environments.
You will get the most out of this online video principles course if you already have an understanding of the basic properties of analogue and digital signals. It is recommended that the PTT course PAA: "Analogue and digital signals" is studied before attempting this course. An appreciation of voice and video encoding is also an advantage. The PTT course PAF: "Media encoding" covers this topic.
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.
Number of modules: 7
Approximate study time: 9 hours
Download and view the course specification in Adobe PDF format
Delivery platform requirements:
To access the course, a computer running a browser such as Google Chrome, Safari etc is required. The computer should have Internet access and be running Adobe Flash. A screen resolution of at least 1024x768 is necessary.