Julì a Minguilí On
نویسندگان
چکیده
In this paper we present a progressive classification scheme for a document layout recognition system (background, text and images) using three stages. The first stage, preprocessing, extracts statistical information that may be used for background detection and removal. The second stage, a tree based classifier, uses a variable block size and a set of probabilistic rules to classify segmented blocks. When a block cannot be classified at a given block size because contains more than one class, it is split in four sub-blocks that are independently classified. The third stage, postprocessing, uses the label map generated in the second stage with a set of context rules to label unclassified blocks, trying also to solve some of the misclassification errors that may have been generated during the previous stage. The progressive scheme used in the second and third stages allows the user to stop the classification process at any block size, depending on his requirements. Experiments show that a progressive scheme combined with a set of postprocessing rules increases the percentage of correctly classified blocks and reduces the number of block computations.
منابع مشابه
A Sociological Study on the effects of poverty on the environment
A Sociological Study on the effects of poverty on the enviro
متن کاملGeneralized states on EQ-algebras
In this paper, we introduce a notion of generalized states from an EQ-algebra E1 to another EQ-algebra E2, which is a generalization of internal states (or state operators) on an EQ-algebra E. Also we give a type of special generalized state from an EQ-algebra E1 to E1, called generalized internal states (or GI-state). Then we give some examples and basic properties of generalized (internal) st...
متن کاملOn a Metric on Translation Invariant Spaces
In this paper we de ne a metric on the collection of all translation invarinat spaces on a locally compact abelian group and we study some properties of the metric space.
متن کاملNegations and aggregation operators based on a new hesitant fuzzy partial ordering
Based on a new hesitant fuzzy partial ordering proposed by Garmendia et al.~cite{GaCa:Pohfs}, in this paper a fuzzy disjunction ${D}$ on the set ${H}$ of finite and nonempty subsets of the unit interval and a t-conorm ${S}$ on the set $bar{{B}}$ of equivalence class on the set of finite bags of unit interval based on this partial ordering are introduced respectively. Then, hesitant fuzzy negati...
متن کامل