Ecole Nationale Supérieure Agronomique de Montpellier ... - CIAM

More documents

Recommendations

Info

and and the assumption is not rejected. 5 conclusion Testing for boolean assumption can be done in the case of non-convex grains. However if one does not want an asymptotic approach as the one proposed by Molchanov, one has to rely on boundedness of the grain. From that point of view it can be noted that the same assumption is necessary for its intensity estimation (Schmitt 1991). The proposed method relies on the completion of the empty spaces inside a grain along horizontal lines, so as to obtain a classical convex boolean model on the line. Molchanov’s proposal, dilation of the boolean model, then applying Laslett transform and checking for Poisson assumption of the translated tangence points relies through the dilation on the same idea : completing the empty spaces inside the grain. However, the dilation being then done in all directions, the proportion of points covered by the dilated process is heavier, as one has to ensure that all the dilated grains are more or less convex. Moreover, even if a bound of the grain is known, no insurance is given how much the final grain is near convexity. Dilating a star with five long branches is a typical example in this case. More and more data sets are acquired by automatic equipments, where data are given as images. In such cases and for convex grains, it can be very difficult to locate a tangence point if the convexity radius is large. Therefore applying Laslett transform on dilated images of the original process needs to find an acceptable compromize between a large dilation, necessary to approach convexity, and a small dilation, to keep a convexity radius small enough with respect to the pixel size. The method we propose avoids the necessity of such a compromize, which is difficult to accept in practice. References Bertuzzi P., Garcia-Sanchez L., Chadœuf J., Guerif J., Goulard M. & Monestiez P. 1995. Modelling surface roughness by a boolean approach. EJSS 46, 215-220. Cressie N. 1991. Statistics for Spatial Data. Wiley, New-York. Diggle P. 1981 Binary mosaics and the spatial pattern of heather. Biometrics, 37, 531-539.
Kamphorst E.C. , Chadøeuf J. , Jetten V. & and Guérif J. 2005. Generating 3D soil surfaces from 2D height measurements to determine depression storage. Catena 62, 2-3, 189-205. Laslett GM, Cressie N & Liow S. 1985. Intensity estimation in a spatial model of overlapping particles. Unpublished manuscript, Division of Mathematics and Statistics, CSIRO, Melbourne. Molchanov I. 1997. Statistics of the Boolean Model for Practionners and Mathematicians. Wiley, New-York. Schmitt 1991. Estimation of the density in a stationary Boolean model. J. Appl. Proba., 28,, 702-708. Stoyan D, Kendall WS & Mecke J 1995. Stochastic geometry and its applications Wiley, New-York.
Page 1 and 2:
Ecole Nationale Supérieure Agronom
Page 3 and 4:
Glossaire A leur première occurren
Page 5 and 6:
C. Conclusions sur l’étude des v
Page 7 and 8:
Introduction - 7 - « Deux grands m
Page 9 and 10:
l’intensification permanente de l
Page 11 and 12:
Ceci nous amène aux enjeux liés
Page 13 and 14:
(b) Coût de la lutte contre l’ES
Page 15 and 16:
Royaume- Uni Espagne Allemagne Belg
Page 17 and 18:
1992) ; par contre, le cerisier dou
Page 19 and 20:
6) Vection Le vecteur de l’ESFY (
Page 21 and 22:
(b) Caractéristiques de la vection
Page 23 and 24:
Conifères ? Rétention du phytopla
Page 25 and 26:
Partie I : Identifier des facteurs
Page 27 and 28:
Identifying Risk Factors from a Sur
Page 29 and 30:
MATERIALS AND METHODS Data Record a
Page 31 and 32:
visual inspection of their spatial
Page 33 and 34:
Influence of the Risk Factors. The
Page 35 and 36:
Model Application This kind of mode
Page 37 and 38:
ACKNOWLEDGEMENTS We are much indebt
Page 39 and 40:
42. Seemüller, E., and Schneider,
Page 41 and 42:
TABLE 5: Analysis of deviance for e
Page 43 and 44:
Fig. 2. Examination of the model fi
Page 45 and 46:
II. Bilan Au-delà des effets évid
Page 47 and 48:
Partie II : Identifier les cycles b
Page 49 and 50:
A toolbox for the specific detectio
Page 51 and 52:
Bordeaux). Plant samples were also
Page 53 and 54:
cycles). The analyses were performe
Page 55 and 56:
The above semi-quantification relie
Page 57 and 58:
Table 1. Sequence of the primers an
Page 59 and 60:
ESFY G1R (X) ESFY G2 (X) AP15R (X)
Page 61 and 62:
Survival of European Stone Fruit Ye
Page 63 and 64:
C. pruni Reimmigrants The percentag
Page 65 and 66:
Table 1. Detection of ESFY from C.
Page 67 and 68:
Si l’expérience est répétée d
Page 69 and 70:
Il y a cependant deux réserves à
Page 71 and 72:
The spread of European stone fruit
Page 73 and 74:
inside the cage. The cages were rem
Page 75 and 76:
Quantification of ‘Ca. P. prunoru
Page 77 and 78:
prunorum’: the infectious reimmig
Page 79 and 80:
Table 2. Occurrence of Cacopsylla p
Page 81 and 82:
Number of C. pruni on P. spinos 40
Page 83 and 84:
V. Bilan sur le fonctionnement de l
Page 85 and 86:
Partie III : Tester des hypothèses
Page 87 and 88:
émergents migrent dans des massifs
Page 89 and 90:
identique à Qc(d) sauf qu’elle e
Page 91 and 92:
MATERIALS AND METHODS Characteristi
Page 93 and 94:
allows summarising in one graph (i)
Page 95 and 96:
(A) (B) Fig. 1. Summary of the spat
Page 97 and 98:
Investigating Disease Spread betwee
Page 99 and 100:
when some plants may be missing for
Page 101 and 102:
the graphical display by an appropr
Page 103 and 104:
shows that the proportion of missin
Page 105 and 106:
the approach developed by Pélissie
Page 107 and 108:
APPENDIX Test 2. This section corre
Page 109 and 110:
several types of points. J. R. Stat
Page 111 and 112:
TABLE 4. Type I error and power of
Page 113 and 114:
Fig. 2. Spatiotemporal pattern of d
Page 115 and 116:
IV. Application à l’analyse de c
Page 117 and 118: Verger D1-4 Verger BH1 Verger BH2 V
Page 119 and 120: annuelle (Figure 1 de l’Article V
Page 121 and 122: consiste à disposer de vergers à
Page 123 and 124: Partie IV : Synthétiser l’inform
Page 125 and 126: Tableau 6. Propriétés biologiques
Page 127 and 128: Conclusion - 127 - « Il importe de
Page 129 and 130: fonctionnement du système épidém
Page 131 and 132: Tableau 7. Avantages et inconvénie
Page 133 and 134: malades correspondrait alors unique
Page 135 and 136: Expérimentations expérimentales S
Page 137 and 138: Références bibliographiques - 137
Page 139 and 140: 30. Chabrolin C. (1924) Quelques ma
Page 141 and 142: 86. Institute of Medicine (1992) Em
Page 143 and 144: 138. Morvan G. (1977) Apricot chlor
Page 145 and 146: 190. Torres E., Martin M. P., Paltr
Page 147 and 148: Annexes - 147 -
Page 149 and 150: if (estim!=1) W2.99) text(B2,0,past
Page 151 and 152: if ((sum(Do[1:4])!=0)&(sum(do1D)==0
Page 153 and 154: III. Annexe 3 : Programme R pour si
Page 155 and 156: IV. Annexe 4 : “Testing Boolean A
Page 157 and 158: Testing boolean assumption in the n
Page 159 and 160: ehavior, which is difficult to obse
Page 161 and 162: distributed. So, the length distrib
Page 163 and 164: ule which transforms the tangent po
Page 165 and 166: large void segments will clearly ap
Page 167: together with local measurements at
Page 171 and 172: c.d.f 0.0 0.2 0.4 0.6 0.8 1.0 0 1 2
Page 173 and 174: 0.0 0.2 0.4 0.6 0.8 1.0 0.0 0.2 0.4
Page 175 and 176: c.d.f. c.d.f. c.d.f. 0.0 0.2 0.4 0.
Page 177: RESUME Les maladies (ré-)émergent
show all

Ecole Nationale Supérieure Agronomique de Montpellier ... - CIAM

Create successful ePaper yourself

Delete template?

Save as template?