FIELD: radio engineering, communication.
SUBSTANCE: method includes, at the encoding step in each domain fragment, calculating discrete wavelet transform coefficients at two spatial coordinates x and y; encoding the set of quantised discrete wavelet transform coefficients using adaptive dichotomous coding. In the method, a compressed video stream is successively subjected to adaptive dichotomous decoding, de-quantisation, inverse two-dimensional discrete wavelet transform at two spatial coordinates x and y and inverse time-domain discrete cosine transform.
EFFECT: high degree of eliminating redundancy of encoded video.
6 dwg
Title | Year | Author | Number |
---|---|---|---|
VIDEO ENCODING AND DECODING METHOD BASED ON THREE-DIMENSIONAL DISCRETE COSINE TRANSFORM | 2014 |
|
RU2557449C1 |
METHOD OF CODING AND DECODING VIDEO INFORMATION BASED ON THREE-DIMENSIONAL DISCRETE COSINE TRANSFORMATION | 2008 |
|
RU2375838C1 |
METHOD FOR PROCESSING VIDEO INFORMATION BASED ON THREE-DIMENSIONAL DISCRETE COSINE TRANSFORMATION WITH MOTION COMPENSATION | 2023 |
|
RU2799099C1 |
METHOD OF ENCODING AND DECODING VIDEO INFORMATION OF REDUCED, STANDARD AND HIGH DEFINITION | 2016 |
|
RU2648581C1 |
PULSE-CODE MODULATION WITH QUANTISATION WHEN ENCODING VIDEO | 2012 |
|
RU2578724C2 |
TWO-PASS QUANTISATION FOR CONTEXT-BASED ADAPTIVE BINARY ARITHMETIC CODING CODERS | 2009 |
|
RU2483468C2 |
QUANTISATION BASED ON MODELLING OF TRANSFER SPEED DISTORTION, FOR CABAC CODERS | 2009 |
|
RU2475999C2 |
METHOD AND DEVICE FOR INDICATION OF QUANTIZER PARAMETERS IN VIDEO ENCODING SYSTEM | 2003 |
|
RU2322770C2 |
INTERPOLATION FILTER SUPPORT FOR SUB-PIXEL RESOLUTION IN VIDEO CODING | 2009 |
|
RU2477576C2 |
METHOD AND DEVICE FOR INSTRUCTIONS OF QUANTISER PARAMETERS IN VIDEO CODING SYSTEM | 2007 |
|
RU2350040C1 |
Authors
Dates
2015-11-20—Published
2014-06-05—Filed