Appendix G: Glossary of Acronyms

2D-VLC	two-dimensional variable length code
3D-VLC	three-dimensional variable length code
AAL	ATM adaptation layer
ABT	adaptive block transform
ATM	asynchronous transfer mode
BD	boundary difference
BISDN	broadband ISDN
BMA	block matching algorithm
CABAC	context-based adaptive arithmetic coding
CAT	category
CBP	coded block pattern
CBR	constant bit rate
Cb, Cr(u, v)	chrominance components
CCF	cross correlation function
CCIR	International Radio Consultative Committee (now called ITU)
CIF	common intermediate format
DCT	discrete cosine transform
DIFF	difference between DC coefficients
DPCM	differential pulse code modulation
DSCQS	double stimulus continuous quality score
DSIS	double stimulus impairment scale
DSM	digital storage media
DTS	decoding time stamp
DVD	digital versatile (video) disc
DWT	discrete wavelet transform
EBCOT	embedded block coding with optimised truncation
ELNUM	enhancement layer number
EOB	end of block
EZW	embedded zero tree
FFT	fast Fourier transform
FLC	fixed length code
FR-TV	full reference TV
FSM	full search method
GOB	group of blocks
GOP	group of pictures
HBMA	hierarchical block matching algorithm
HDTV	high definition television
HVS	human visual system
ICT	irreversible colour transform
IEC	International Electrotechnical Commission
INTER	interframe
INTRA	intraframe
IDCT	inverse DCT
IP	internet protocol
IQ, Q-1	inverse quantiser
ISDN	integrated services digital network
ISO	International Standards Organisation
ITC, TC-1	inverse transform
ITU-T	International Telecommunication Union (telegraphy section)
JPEG	Joint Photographic Experts Group
L(Y)	luminance component
LAN	local area network
LIP	list of insignificant pixels
LIS	list of insignificant set
LPF	lowpass filter
LSB	least significant bit
LSP	list of significant pixels
MAE	mean absolute error
MB	macroblock
MC	motion compensation
MCBPC	combined macroblock and coded block pattern
MCU	multipoint control unit
ME	motion estimation
MOS	mean opinion score
MPEG	Motion Picture Experts Group
MSB	most significant bit
MSE	mean-squared error
MV	motion vector
MVD	motion vector data
MVDB	motion vector data for B-pictures
MVDS	motion vector data for shape
NAL	network adaptation layer
NR-TV	no reference TV
NTSC	National Television System Committee
OFDM	orthogonal frequency division multiplex
PAL	phase alternate line
PBP	priority break point
PCRD	post compression rate distortion
PES	packetised elementary stream
PSNR	peak signal-to-noise ratio
PSTN	public switched telephone network
PTS	presentation time reference
Q	quantiser
QCIF	quarter of CIF
RCT	reversible colour transform
RGB	red, green and blue colour primaries
RLNUM	reference layer number
RM	reference model
ROI	region of interest
RR-TV	reduced reference TV
RTP	real time transport protocol
RVLC	reversible variable length code
SAC	syntax-based arithmetic coding
SECAM	sequential couleur avec memoire
SIF	source input format
SOT	special orientation tree
SPIHT	set partitioning in hierarchical tree
SSCQE	single stimulus continuous quality evaluation
ST	statistical table
STC	systems time clock
subQCIF	one ninth of CIF
TC	transform coding
TM	test model
UBR	unspecified bit rate
VBR	variable bit rate
VCL	video coding layer
VCR	video cassette recorder
VLC	variable length code
VLD	variable length decode
WT	weighting table