Propositions
1. If it isdifficult toextractcharacters fromaplaindocument
image, then
theapplicationofthisoperatortoasceneimageinanuncontrolledenvironmentwillnotbeeasier(Chapter1).
2. Keypoint-descriptor vectors and keypoint locations of SIFT
are useful
forbothcharacter-shaperecognitionandforscene-textdetectioninThaiscript(Chapter2,Fig2.10).
3. Applying autocorrelation function to a color space is robust
to the lightingcondition(Chapter4Fig.4.2,Fig.4.4).
4.
Colorisusefulforthedistinctionbetweenhomogeneousandinhomogeneousimageregions,therebysupportingobjectdetectionandclassification(Chapter4).
5. AGaussianblurwithsmallsigmaissufficienttohomogenize
patchyobjectareasforthegeneraltext-chunklocalizationinsceneimages.(Chapter5,Fig.5.12).
6.
Heterogeneousfeaturesachievehigherclassificationperformancethan
homogeneousfeaturesandareapplicabletoavarietyofobjectclassificationtasks(Chapter3and4).
7.
Theadvantageofexplicitfeaturemethodsandk-meansclusteringisthatthecomputationalloadandimbalancebetweentargetandbackgroundpatternscanbeoptimizedindetail(Chapter4).
