Wireless data technologies reference handbook phần 6 ppt
Wireless data technologies reference handbook phần 6 ppt
... 0 1 2 3 4
W-B, LP 5.0 19.2 139.5 478 .6 4 96. 5
W-B, BP 112.8 141.0 179.4 205.7 120.0
R-G, LP 154.2 354.0 404.0 184 .6 27.0
B-Y, LP 125 .6 332.7 381.4 131.5 28 .6
PERCEPTUAL DISTORTION METRIC 97
nonrecursive ... 8-bit Y
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as follows (Poynton, 19 96) :
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@...
Wireless data technologies reference handbook phần 3 pptx
... channel discriminates between short and medium wavelengths.
400 450 500 550 60 0 65 0 700
–1
–0.8
–0 .6
–0.4
–0.2
0
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Wavelength [nm]
Sensitivity
W–B
R–G
B–Y
Figure 2.14 Normalized spectral ... to
facilitate handling such data rates.
Compression is the reduction of redundancy in data. Generic lossless
compression algorithms, which assure the perfect reconstruction of t...
Wireless data technologies reference handbook phần 8 ppt
... 127
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Scene 1
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Scene ... 9
Condition
DMOS
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Wireless data technologies reference handbook phần 6 pot
... Enterprise 450
Solaris 2 .6
Sun Enterprise 450
Solaris 2 .6
Sun Enterprise 450
Solaris 2 .6
Sun Enterprise 450
Solaris 2 .6
Sun Netra t1
Solaris 2 .6
QIP Remote
Standby Processor
POWER FAULT DATA ALARM
Figure ... configurations on Cajun Switches. This
132 WIRELESS DATA NETWORKS
25 23 21 19 17 15 11 9 7 5 3 1
2 468 101214 161 820
22
24
SNR 10−15 dB,
datarate > = 5.5 Mb
SNR >15...
Wireless data technologies reference handbook phần 8 pptx
... technology.
Wireless Broadband offers tremendous flexibility and improving performance
but it does have some limitations. Wireless broadband uses radio spectrum, which
Wireless Data Technologies. ... retailing.
Commonly available tags have an operating frequency in the range from 60 kHz
to 5.8 GHz depending on application.
Wireless Data Technologies. Vern A. Dubendorf
2003 Joh...
Wireless data technologies reference handbook phần 10 pps
... 188, 190, 192, 194,
1 96, 198, 200, 202, 204
Wired Equivalent Privacy, see
WEP
Wireless Application Protocol, see
WAP
Wireless Guru xix
Wireless Local Area Networks, see
WLAN
Wireless Personal Area ... Networks, see
WLAN
Wireless Personal Area Network, see
WPAN
wireless technologies xix
Wireless Transport Layer Security, see
WTLS
WLAN, see Wireless Local Area
Networks
WPAN 1...
Wireless data technologies reference handbook phần 1 potx
... Models 56
3.4.3 Multi-channel Models 58
3.4.4 Specialized Metrics 63
3.5 Metric Evaluation 64
3.5.1 Performance Attributes 64
3.5.2 Metric Comparisons 66
3.5.3 Video Quality Experts Group 66
3.5.4 ... Title.
TK 668 0.5.W55 2005
0 06. 6
0
96 dc22 2004 061 588
British Library Cataloguing in Publication Data
A catalogue record for this book is available from the British Library
ISB...
Wireless data technologies reference handbook phần 4 potx
... back
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5
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D/H
Visual angle [deg]
2 3 4 5 6 7 8
5
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30
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D/H
Resolution [cpd]
HDTV (1080 lines)
HDTV (720 lines)
PAL (5 76 lines)
NTSC (4 86 lines)
CIF ... above-mentioned image
62 VIDEO QUALITY
Table 3.1
Overview of visual quality metrics
Color
Trans- Local
Reference
Appl.
(1)
Space
(2)
Lightness
(3)
form
(4)
Contrast CSF
(5)
Masking
(6)...
Wireless data technologies reference handbook phần 5 pps
... conditions were defined, and a
{
This is the PDM described in section 4.2.
METRIC EVALUATION 67
produced by passing the reference through a temporal low-pass filter. A
report of the DVQ metric’s performance ... video sequences. While it still requires the reference as input, the
cognitive emulator was shown to improve the predictions of subjective
SSCQE MOS data.
3.5 METRIC EVALUATION
3...
Wireless data technologies reference handbook phần 7 pdf
... of
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All Low Q High Q 50 Hz 60 Hz
Pearson non-linear correlation
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All Low Q High Q 50 Hz 60 Hz
Spearman rank-order correlation
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All ... and
Farrell, 19 96) . The responses for two test conditions are shown in Figure 5.2.
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Noise amplitud...
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