Patent application number | Description | Published |
20080240582 | METHOD AND APPARATUS FOR CHARACTER STRING RECOGNITION - A method and an apparatus for character string recognition may be provided that enables prevention of a decrease in recognition accuracy for a character string even when distortion of an image appears in a direction perpendicular to a medium transfer direction. | 10-02-2008 |
20080285839 | METHOD AND APPARATUS FOR MAGNETIC CHARACTER RECOGNITION - A method for magnetic character recognition may include preparing standard array data of peak intervals; generating a regeneration waveform out of a character string of magnetic characters printed on a surface of an information data recording medium; segmenting a character waveform of each magnetic character out of the regeneration waveform; generating array data of peak intervals out of an array pattern of a plurality of intervals between peaks that are included in the character waveform; and comparing the array data of peak intervals with the standard array data of peak intervals; wherein, based on a comparison result of comparing the array data of peak intervals with the standard array data of peak intervals, a read character is identified with a character corresponding to an array data of peak intervals that shows the highest coincidence. | 11-20-2008 |
20080304746 | METHOD AND APPARATUS FOR CHARACTER STRING RECOGNITION - To provide a method and apparatus for character string recognition that enables improvement in accuracy of character recognition while maintaining high-speed operation performance in character recognition. | 12-11-2008 |
20090242643 | APPARATUS AND METHOD FOR SYMBOL INFORMATION READING - A symbol information reading apparatus may include an imaging element; an image memory structured to store image data; a position detecting processor structured to fetch the image data and structured to detect a position of symbol information. The position detecting processor may include a temporary area judgment unit that structured to calculate a variation of brightness, and structured to judge a temporary area having a possibility of corresponding to the symbol information; a correlation map creating unit that structured to calculate correlation between areas neighboring in a direction perpendicular to the scanning direction, and structured to create a map showing an area provided with large correlation values; a labeling unit that structured to check presence of a basic barcode on the correlation map, and structured to label an area judged as having the basic barcode; and a position determining unit that structured to detect a position of the symbol information recorded. | 10-01-2009 |
20090324106 | METHOD AND APPARATUS FOR MAGNETIC CHARACTER RECOGNITION - A method for magnetic character recognition may include: a peak detection process for detecting peak positions in a regeneration waveform; a character pitch measuring process for calculating an average character width and an average character period of each character according to a detection result of the peak detection process; a character segmentation process for calculating a peak interval array for each character according to the average character period; a peak searching process for searching for peak positions by using searching conditions, which are different from what the character segmentation process applies, on each waveform part segmented through the character segmentation process; a peak count evaluation process for choosing either a result of the character segmentation process or a result of the peak searching process, depending on whether the number of peaks in the waveform part agrees with a prescribed number of peaks; and a character determining process for a matching operation on a peak interval array, according to the peak interval array determined through the peak count evaluation process, to determine the character. | 12-31-2009 |
20100135578 | CHARACTER LINE RECOGNITION METHOD AND CHARACTER LINE RECOGNITION DEVICE - A character line recognition method for processing image data obtained by scanning a character line on a medium to recognize the character line may include processing the image data into monochrome binary format image data by using a predetermined binarization standard threshold; extracting character features from each character that composes the character line to calculate similarity with respect to standard character features; temporarily determining characters based on the similarity; calculating basic statistics of the similarity for all the characters which have been temporarily determined; and changing the binarization standard threshold based on the basic statistics and then returning to the processing the image data. | 06-03-2010 |
20110186637 | APPARATUS AND METHOD FOR READING SYMBOL INFORMATION - An apparatus and method for reading symbol information enabling improvement of decoding accuracy, not being affected by the condition of a reflection coefficient waveform of a reflected light beam and the kind of symbol information to be read. The method includes: reading a reflected light beam from symbol information irradiated with a light beam; detecting peak values in a reflection coefficient waveform of the reflected light beam; calculating a first peak value according to a peak value at a high reflection coefficient side (white level) among the peak values detected; calculating a second peak value according to a peak value at a low reflection coefficient side (black level) among the peak values detected; and calculating a binarization threshold based on the first peak value and the second peak value. | 08-04-2011 |
20110220721 | METHOD AND APPARATUS FOR READING BARCODE INFORMATION - Provided is a method and an apparatus for reading barcode information; the method and apparatus being able to read barcode information correctly without being influenced by the environmental conditions at the time of reading the barcode information. When a reading method according to a prescribed rule could not read a character, each element width is judged again to be either thin or thick according to structural characteristics of characters to convert again an element width matrix into a bit pattern, and then a character corresponding to the bit pattern as a result of the re-conversion is determined. | 09-15-2011 |
20110233279 | METHOD AND APPARATUS FOR READING STACKED BAR CODE INFORMATION - A method and an apparatus for reading stacked bar code information are provided which make it possible to shorten the processing time for reading the stacked bar code information. A plurality of conversion processes are disclosed for creating line width matrixes through measurement of the line width of bars and spaces of one column of the image data, by using each of a plurality of threshold values. A cluster number according to a line width matrix calculated through one of the plurality of conversion processes is then compared to a theoretical value of a cluster number of each row. | 09-29-2011 |
20110255795 | APPARATUS AND METHOD FOR CHARACTER STRING RECOGNITION - An apparatus and a method for character string recognition for correctly recognizing a character string placed on a medium, even in a recognition process system in which a plurality of formats are handled. An image processing area is set on a medium. The image processing area is divided in a placement direction of character strings so as to make up a plurality of segments. An image data projection in a direction of character strings is calculated for each segment. The number of character string lines for each segment is calculated according to the image data projection. The number of character string lines is determined for the image processing area as a whole, according to the number of character string lines for each segment, and it is judged whether or not the character strings are predetermined character strings. | 10-20-2011 |
20120055991 | APPARATUS AND METHOD FOR READING BARCODE - Reliability of a decoded result on a barcode is improved without increasing a processing load and a processing time. While a medium transfer mechanism transfers a recording medium, an image capture section captures an image of a surface of the recording medium, and the image data captured is saved in an image memory. Next, a scanning line setup section sets a plurality of scanning lines for image data of a barcode, and meanwhile a decoding section decodes the barcode by making use of image data corresponding to the scanning lines. Subsequently, a judgment section calculates reading reliability according to the image data corresponding to the scanning lines, and makes a judgment on a scanning line having a highest reliability among the reading reliability values. Then, a decoded result for the scanning line corresponding to the judgment result is defined as decoded information for the barcode. | 03-08-2012 |
20120085823 | STACKED BARCODE READER AND STACKED BARCODE READING METHOD - In a decoding section of a stacked barcode reader, the brightness values of multiple pixels configuring image data are used to calculate multiple line widths of the bars and the spaces of the stacked barcode. Based on the evaluation value of the frequency distribution of multiple line widths, a priority order of T-sequence is determined. According to this priority order, the T-sequence is measured and the code word corresponding to the T-sequence is obtained. With this, the priority order of the T-sequence is determined based on the evaluation value (such as the maximum value, variance, etc.) of the frequency distribution of the line widths of the bars and the spaces that configure the stacked barcode increasing reading performance of the barcode reader on a stacked barcode while reducing the number of errors in all the decoded code words, despite the level of the resolution of the image pickup optical system. | 04-12-2012 |
20140099044 | IMAGE COMBINING DEVICE, IMAGE COMBINING METHOD AND PROGRAM TO IMPLEMENT IMAGE COMBINING METHOD - An image combining device may include an image reading unit that reads an image of a first and second partial area which have a portion overlapping; a template area setting section that sets apart an area of a predetermined shape as a comparison area from the overlapping area; a calculation area setting section that selects areas of the shape corresponding to the shape of the comparison area; a correlation coefficient calculating section that calculates a correlation coefficient between each of the image data values of the multiple areas; an area identifying section that identifies, from the multiple areas, the area in which the calculation result satisfies a predetermined condition; and a combining section that combines the images of the first and second partial areas in the positional relationship in which the area identified by the area identifying section and the comparison area overlap with each other. | 04-10-2014 |
20140185106 | APPARATUS, METHOD AND PROGRAM FOR CHARACTER RECOGNITION - A character recognition apparatus may include an imaging element configured to read a character string placed on an information recording medium; an image memory configured to store image data of the character string; and a character segmenting unit configured to segment a character constituting the character string. The character segmenting unit may include a minimum intensity curve creating unit configured to detect a minimum intensity value among light intensity values, and create a minimum intensity curve of the image data according to the minimum intensity value of each pixel row; a character segmenting position detecting unit configured to calculate a space between the characters neighboring in the created minimum intensity curve, in order to detect a character segmenting position between the characters; and a character segmenting process unit configured to segment each character according to the detected character segmenting position between the characters. | 07-03-2014 |
20140219561 | CHARACTER SEGMENTATION DEVICE AND CHARACTER SEGMENTATION METHOD - A character segmentation section, for segmenting characters of a character line may include a minimum pixel-value curve creating section configured to extract a smallest pixel value in pixels composing a pixel line arranged in a direction orthogonal to a character line direction in said multi-level image data and create a minimum pixel-value curve, a character partitioning position determining section configured to determine partitioning positions of said characters, based on said minimum pixel value curve, a binarization processing section configured to detect a minimum pixel value indicating said linear drawing from said minimum pixel-value curve, acquires a binarization threshold based on said minimum pixel value, and binarizes said multi-level image data using said binarization threshold, and a character segmentation implementing section configured to extract the image data of each character. | 08-07-2014 |
20140291401 | SYMBOL INFORMATION READER, SYMBOL INFORMATION READING METHOD AND PROGRAM TO EXECUTE IT - A symbol information reader may include an imaging device configured to image the medium; an image memory configured to store image data of the medium; and a position detection processor configured to retrieve the image data and detect the position of symbol information recorded on the medium. The position detection processor may include a temporary area judging unit; a correlation map creating unit; a labeling unit configured, and a position determining unit configured to detect the position of the symbol information recorded on the medium. When searching the correlation map for a predetermined basic pattern and labeling, the labeling unit judges whether the basic pattern is present or not according to the ratio of high correlation area to the area subject to judgment or the position of high correlation area in the basic pattern. | 10-02-2014 |
20140291402 | STACK BARCODE READER AND STACK BARCODE READING METHOD - A stack barcode reader may include an imaging section configured to image the stack barcode in which character information is expressed with a bar and a space; an image memory configured to store image data of the stack barcode; a data processing section including a decoding unit and configured to decode the barcode of the stack barcode into the character information. The decoding unit may include a low-level decoding unit, a high-level decoding unit, and a decoded result selection unit for selecting a decoded result. The high-level decoding unit may include an error-correction unit. The decoded result selection unit may include a counter unit configured to count the number of error corrections and a selection unit configured to select a decoded result having the less number of corrections. | 10-02-2014 |