Thesis-1983-Cham.pdf (3.65 MB)
Transform coding of pictorial data
thesis
posted on 2018-05-10, 10:23 authored by W.K. ChamBy using transform coding, image transmission rates as low as
0.5 bit/pel can be achieved. Generally, the bit rate reduction
is achieved by allocating fewer bits to low energy high
order coefficients, However, to ensure reasonably good picture
quality, a large number of bits has to be allocated to high
energy dc coefficients for both fine quantization and good
channel error immunity, A technique has been developed that,
in some cases, allows the de coefficients to be estimated at
the receiver, thus eliminating a major source of difficulty
with respect to channel errors. [Continues.]
Funding
British Telecommunications, Research Establishment.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Publisher
© W.K. ChamPublisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
1983Notes
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.Language
- en