Multiscale Edge-Based Text Extraction from Complex Images

Abstract

Text that appears in images contains important and useful information. Detection and extraction of text in images have been used in many applications. In this paper, we propose a multiscale edge-based text extraction algorithm, which can automatically detect and extract text in complex images. The proposed method is a general-purpose text detection and extraction algorithm, which can deal not only with printed document images but also with scene text. It is robust with respect to the font size, style, color, orientation, and alignment of text and can be used in a large variety of application fields, such as mobile robot navigation, vehicle license detection and recognition, object identification, document retrieving, page segmentation, etc.

An Efficient Approach for Text Extraction in Images and Video Frames Using Gabor Filter

“…In all the images recall rate of 99.11, precession rate of 94.67 and overall computed time of 5.28 second can be achieved by the experiment results of the proposed detection method. 88.7 83.9 Liu et al [7] 96.6 91.8 Ye et al [13] 90.8% -Kim et al [14] 82.8 63.7 Li et al [15] 91.1% -Wolf et al [17] 93.5 - Table III shows the performance comparison of our proposed method with other existing text extraction and detection method, where our proposed method has a better performance in precision rate and recall rate. The reason for better recall rate that the proposed method used Gabor filter to change image in to edge based image.…”

“…Kumar et al proposed edge based methods [5], [6] an efficient text extraction algorithm in complex images and an efficient algorithm for text Localization and extraction in complex video text images. A focus of line detection mask based system for text region localization has been proposed by Liu et al [7]. A. Kumar et al [8], [9] proposed a line detection mask based text extraction in images and video frames.…”

The Industrial Buildings which used in Saudi Arabia and the Concept of itsImpact on Sustainability

“…It comprises[]"thedevelopment of industrial building construction activities, including new designs, enlargements,modifications, maintenance and reforms". The construction of installations for developing productionactivities, whose production processes do not need a building for their execution, such as incinerationplants, cement plants, blast furnaces and other similar structures; are also included in this sector.Generally speaking, the participating agents are: construction contractors, construction companies,industrial building design companies and projection direction firms.As a definition of factory or industrial building we could adopt Prof. Losada"s [8] "a space whereindustrial production and storage tasks are performed. The term factory as alternative for industrialbuildings includes generic aspects of industrial production.…”

Robust and Accurate Text Stroke Segmentation

“…Early attempts at scene text segmentation tried to separate text strokes from background using local features such as edge [16] and color [40,20], which were processed using simple thresholding or filtering. Later work used more sophisticated image models such as Markov Random Field (MRF) [24,37,23].…”