Unit name | Image and Video Coding |
---|---|
Unit code | EENGM4021 |
Credit points | 10 |
Level of study | M/7 |
Teaching block(s) |
Teaching Block 2 (weeks 13 - 24) |
Unit director | Professor. David Bull |
Open unit status | Not open |
Pre-requisites |
"EENG31400 or EENGM1400" |
Co-requisites |
None |
School/department | School of Electrical, Electronic and Mechanical Engineering |
Faculty | Faculty of Engineering |
The need to transmit high quality images and video sequences faithfully over a variety of channel conditions and bandwidths is increasing rapidly with the growth of the digital broadcasting and personal communications markets. Some of the greatest challenges lie in the area of source coding for transmission over unreliable wireless networks to mobile terminals and in how to deal with increasing resolution, frame-rate, dynamic range and the demands of new formats. In this context, the topics to be covered include: i) how to code moving pictures efficiently such that redundant content can be removed without unduly sacrificing perceived quality, ii) how to ensure that the information can be faithfully reconstructed at the receiver in the presence of transmission losses and iii) how to implement solutions with low complexity. This module will introduce the student to the algorithms and standards currently available which address these issues as well as to emerging technology trends. Practical and relevant examples will be given throughout the course.
• Introduction: Image compression techniques, applications, requirements, a generic image/video codec.
• Basic concepts: The human visual system, image capture, sampling and display, luminance and chrominance, separation, quality assessment, rate-distortion theory.
• Transform methods for image and video coding: KLT, DCT, quantisation, performance comparisons, implementations.
• Lossless coding techniques: information and entropy, predictive coding, Huffman and arithmetic coding, performance comparisons.
• Filterbank methods for image and video coding: multirate processing, filterbanks, wavelets, quantisation and bit allocation, performance comparisons.
• Motion estimation and compensation: principles, block matching, extensions, reduced complexity implementations, sub-pixel and multiple reference frame methods, performance comparisons.
• Error resilient coding: the influence of errors, synchronisation loss, layered coding, EREC, error concealment.
• Image and video coding standards: JPEG, JPEG-2000, MPEG2/DVB, H.264/AVC, H.265/HEVC, the future. Assessment Details
On completion of this unit the student will be able to:
Teaching will be delivered through a combination of synchronous and asynchronous sessions, including lectures, practical activities supported by drop-in sessions, problem sheets and self-directed exercises.
ILOs will be assessed via an exam.
If this unit has a Resource List, you will normally find a link to it in the Blackboard area for the unit. Sometimes there will be a separate link for each weekly topic.
If you are unable to access a list through Blackboard, you can also find it via the Resource Lists homepage. Search for the list by the unit name or code (e.g. EENGM4021).
How much time the unit requires
Each credit equates to 10 hours of total student input. For example a 20 credit unit will take you 200 hours
of study to complete. Your total learning time is made up of contact time, directed learning tasks,
independent learning and assessment activity.
See the Faculty workload statement relating to this unit for more information.
Assessment
The Board of Examiners will consider all cases where students have failed or not completed the assessments required for credit.
The Board considers each student's outcomes across all the units which contribute to each year's programme of study. If you have self-certificated your absence from an
assessment, you will normally be required to complete it the next time it runs (this is usually in the next assessment period).
The Board of Examiners will take into account any extenuating circumstances and operates
within the Regulations and Code of Practice for Taught Programmes.