A Heuristic Adaptation Method for Heterogeneous Documents

Abstract

The invention discloses a heuristic adaptation method for a heterogeneous document. The method is used for performing binary processing on the heterogeneous document. According to the method, local layout analysis is performed on a to-be-read region based on judgment of types of connected components with the connected components being basic objects from a user click position which serves as a seed point. During homogeneous region expansion, from an initial seed connected component, transverse initialization expansion is measured according to transverse homogeneity, longitudinal expansion is measured according to longitudinal homogeneity, a new line is searched for, whether a previous line needs to continue transverse expansion is judged according to the new line, longitudinal expansion is continued till left / right and up / down lines all reach the boundary, and a preliminary homogeneous region is obtained. During homogeneous region optimization, region segmentation or combination is performed on the homogeneous region according to conditions, so that the aspect ratio of the optimized region is adaptive to the screen ratio. An original image corresponding to a final region to be adapted to is adapted to a screen for reading, and a user can click to read a previous / later adaptive region or exit an adaptive reading state to reselect a reading region.

Description

technical field [0001] The invention relates to digital content reading experience of mobile terminal equipment, in particular to a heuristic adaptation method for heterogeneous documents. Background technique [0002] With the rapid popularization and increasingly powerful functions of various mobile terminal devices (such as smart phones, tablet computers, and e-readers), people increasingly rely on these devices to read various digital contents. However, the diversity of these devices in terms of screen resolution, size, aspect ratio, etc. greatly affects people's reading experience, thus posing new challenges to the processing of digital content. Image adaptation (see literature: riel Shamir, Alexander Hornung, & Olga Sorkine. (2012). Modern Approaches to Media Retargeting. In SIGGRAPH Asia Course Notes.) is a typical example. When the source image resolution and the target screen size ratio do not match, simply scaling the image uniformly will distort the overall scale...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the content of heterogeneous documents cannot be seen clearly when reading on a small-sized mobile terminal, and the reading efficiency is not high due to frequent zooming and panning, so that users can avoid tedious zooming and panning operations, A Heuristic Adaptation Method for Heterogeneous Documents that Greatly Improves Reading Efficiency

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