Index 4.5 of /~cheungzhuo/fourththirdpart(KinLik)
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10: (Winter 2005) , andScenery and diaryEarly Summer
2005, and
11: (early Summer 2006)
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Name
Last modified Size Description
Lec : P intro. 26-May-2000 14:00 -
Lec : Japanese 2P intro. 26-May-2000 14:00 -
colour version. 2-May-2000 14:00 -
Lec : Japanese 3P intro. 26-May-2000 14:00 -
Lec : Japanese 4pieces. 26-May-2000 14:00 -
![[grf]](../grf/growtho.gif)
Lec : Chinese intro
8pieces. 26-May-2000 14:00 -
riverside. 2-May-2000 14:00 -
river
play. 2-May-2000 14:00 -
river play
2. 2-May-2000 14:00 -
big
face. 2-May-2000 14:00 -
PREPICS
17-Jul-00 11:58 1k HTML Text
SECONDPIC2S 17-Jul-00 11:58 1k HTML2Text
3rdPIC3S
18-Jul-00 11:58 1k HTML3Text
MOREPIC4,17-Jul-00 11:58 1k HTMLText4
MOREPIC5,17-Jul-00 11:58 1k HTMLText5
MOREPIC6,17-Jul-00 11:58 1k HTMLText64thPICS
18-Jul-00 11:58 1k HTML4Text
Image Table 2.4 - Results of the Extrapolation Algorithms for Still image and Actual
(Higher-Level) Compression
The results present the zeroth-order entropy of the prediction algorithms, the number of elevation
corrections
and its range, the percentage of DEM vertices that are predicted to within 0, 1, 2, and 5 metres, and the
actual compressed code length using a higher order Arithmetic coding scheme. From this table, it can be
deduced that the larger neighbourhoods of vertices that are used within the prediction process will produce
better performance, but when large neighbourhoods are used (e.g., 24 points), the additional processing time
does not necessarily warrant the very small improvements. The results also indicate that a poor predictor
can
be redeemed by a good higher order statistical encoding algorithm. For example, the vertical predictor
performs worse than the linear predictor (by about 1 bpe), but after Arithmetic Coding, the results are better
for the vertical predictor. In this instance, Arithmetic Coding uses row-wise data (in the x-plane) which
when
combined with the vertical predictor (in the y-plane) is equivalent to the linear (xy-plane) predictor. There
is no doubt further room for improvement with respect to the use of dynamic predictors and the flexibility of
statistical data compression algorithms exist; however, the result of under 1.6 bpe for this DEM represents a
storage saving in excess of 90% over the traditional 2-byte integer, and is significantly better than the
4.164 bpe, which GZIP could only manage.
Today count. directory. KinLik, JFrancis, CUHKELE1984-1988 Joint Web.

KinLik's Bests 1984-2000 hkculture@yahoo.com.cn Port 80