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1. 发明授权

EP3330885B1 DECODING METHOD AND SYSTEM FOR USE WHEN QR CODE POSITION DETECTION GRAPH IS DAMAGED 有权
公开(公告)号：EP3330885B1
公开(公告)日：2020-10-07
申请号：EP16840694.0
申请日：2016-07-28
申请人： Fujian Landi Commercial Equipment Co., Ltd
发明人： JIANG, Shengzhang , WU, Weidong
IPC分类号： G06K7/10 , G06K7/14

2. 发明授权

EP3309705B1 QR CODE FEATURE DETECTION METHOD AND SYSTEM 有权
公开(公告)号：EP3309705B1
公开(公告)日：2020-06-03
申请号：EP16829814.9
申请日：2016-07-22
申请人： Fujian Landi Commercial Equipment Co., Ltd
发明人： JIANG, Shengzhang , WU, Weidong
IPC分类号： G06K7/10

3. 发明授权

EP3309703B1 METHOD AND SYSTEM FOR DECODING QR CODE BASED ON WEIGHTED AVERAGE GREY METHOD 有权
公开(公告)号：EP3309703B1
公开(公告)日：2020-11-04
申请号：EP16827272.2
申请日：2016-07-22
申请人： Fujian Landi Commercial Equipment Co., Ltd
发明人： JIANG, Shengzhang , WU, Weidong
IPC分类号： G06K7/10 , G06K7/14 , G06T7/12 , G06T7/187 , G06T7/136

4. 发明授权

EP3330887B1 CHINESE-SENSITIVE CODE FEATURE PATTERN DETECTION METHOD AND SYSTEM 有权转让
公开(公告)号：EP3330887B1
公开(公告)日：2019-05-01
申请号：EP16843538.6
申请日：2016-08-02
申请人： Fujian Landi Commercial Equipment Co., Ltd
发明人： JIANG, Shengzhang , WU, Weidong
IPC分类号： G06K9/00 , G06K7/14 , G06K9/46

5. 发明公开

EP3330887A1 CHINESE-SENSITIVE CODE FEATURE PATTERN DETECTION METHOD AND SYSTEM 有权转让
公开(公告)号：EP3330887A1
公开(公告)日：2018-06-06
申请号：EP16843538.6
申请日：2016-08-02
申请人： Fujian Landi Commercial Equipment Co., Ltd
发明人： JIANG, Shengzhang , WU, Weidong
IPC分类号： G06K9/00
CPC分类号： G06K7/1447 , G06K7/1417 , G06K7/1452 , G06K9/00 , G06K9/468
摘要： The invention provides a detection method and system for characteristic patterns of Han Xin codes. The detection method comprises the steps: binarizing a received two-dimensional code image, scanning the two-dimensional code image line-by-line and column-by-column so as to search out the four vertexes of a Han Xin code region, connecting every two vertexes of the four vertexes so as to form the four boundaries and two diagonal lines of the Han Xin code region, searching out four characteristic line segments starting from the vertexes and having the continuous binarization values 1, 0, 1, 0, 1 from the two diagonal lines and also searching out the end points of the characteristic line segments, and calculating the boundaries and the data bit width of position detection patterns of the Han Xin code according to the start points and the end points of the characteristic line segments. The method is high in anti-interference capacity, and the position detection patterns of the Han Xin code can be searched out and localized rapidly.

6. 发明公开

EP3330885A1 DECODING METHOD AND SYSTEM FOR USE WHEN QR CODE POSITION DETECTION GRAPH IS DAMAGED 有权
公开(公告)号：EP3330885A1
公开(公告)日：2018-06-06
申请号：EP16840694.0
申请日：2016-07-28
申请人： Fujian Landi Commercial Equipment Co., Ltd
发明人： JIANG, Shengzhang , WU, Weidong
IPC分类号： G06K7/10
摘要： The invention provides a decoding method and system for a QR code with one damaged position detection pattern. The decoding method comprises the steps: binarizing a received image containing a QR code pattern and searching for position detection patterns, decoding the QR code pattern through the following method if two position detection patterns are searched out, recording the linear equations of the boundaries of the two position detection patterns and the vertex coordinates of the two position detection patterns and calculating the data bit width of the QR code pattern, searching out a location pattern between the two position detection patterns with the positional relation determined, determining the region where the QR code pattern is located according to the two position detection patters and the location pattern, partitioning the region where the QR code pattern is located with grids, and decoding the QR code pattern partitioned with grids. The decoding method and system have the advantages of being capable of efficiently decoding the QR code pattern with one damaged position detection pattern and low in error.

7. 发明公开

EP3330884A1 TWO-DIMENSIONAL CODE PRELIMINARY POSITIONING METHOD AND SYSTEM 有权转让
公开(公告)号：EP3330884A1
公开(公告)日：2018-06-06
申请号：EP16840693.2
申请日：2016-07-28
申请人： Fujian Landi Commercial Equipment Co., Ltd
发明人： JIANG, Shengzhang , WU, Weidong
IPC分类号： G06K7/10
CPC分类号： G06K7/1417 , G06K7/10 , G06K7/10722
摘要： The invention provides a primary localization method and system for QR codes. The primary localization method for QR codes comprises the steps: S1, binarizing pixel points of a received image containing a QR code; S2, partitioning the image containing the QR code into at least one mesh region including m*n pixel points; S3, recording the number of black pixel points in each mesh region, assigning the value 1 to mesh regions including black points, and assigning the value 0 to mesh regions not including black points; S4, marking the image containing the QR code as a non-object region after values are assigned to the mesh regions; S5, scanning the non-object region line-by-line and column by column and marking the union of the mesh regions continuously with the value 1 for the first time in each line and the mesh regions continuously with the value 1 for the first time in each column as an object region; S6, judging whether the object region is the QR code region or not, if not, returning to step S5 to perform corresponding operation again, and if yes, outputting the line numbers and the column numbers of the pixel points corresponding to the boundaries of the object region. The method is rapid and accurate.

8. 发明公开

EP3309705A1 QR CODE FEATURE DETECTION METHOD AND SYSTEM 审中-公开
标题翻译： QR码特征检测方法和系统
公开(公告)号：EP3309705A1
公开(公告)日：2018-04-18
申请号：EP16829814.9
申请日：2016-07-22
申请人： Fujian Landi Commercial Equipment Co., Ltd
发明人： JIANG, Shengzhang , WU, Weidong
IPC分类号： G06K7/10
CPC分类号： G06K7/1417 , G06K7/10 , G06K7/12
摘要： The invention provides a QR code feature detection method and system. The method includes: dividing a received QR code image into a multi-row image of rows of pixels whose number is the same as a threshold of the number of rows; calculating an average grayscale value of each column of pixels in the multi-row image to form row data, and binarizing the row data; extracting a rectangle image in the binarized row data whose similarity to a preset proportion is smaller than a preset row proportion threshold; binarizing the rectangle image and a region formed by extending the rectangle image by the width threshold upwardly and downwardly respectively; searching for column line segments meeting the preset proportion on a middle column of the rectangle image; translating a diagonal line of a square image containing the rectangle image and the column line segments in upward and downward directions respectively; searching for and recording black-white demarcation points on the edge of the square image on the translated diagonal line and forming a position detection pattern of the QR code. The position detection pattern of the received QR code can be quickly found, thereby reducing the amount of data operation of the system.
摘要翻译：本发明提供了一种QR码特征检测方法和系统。该方法包括：将接收到的二维码图像划分为数量与行数阈值相同的多行像素; 计算多行图像中每列像素的平均灰度值以形成行数据，并对行数据进行二值化; 提取与预设比例相似度小于预设行比例阈值的二值化行数据中的矩形图像; 将所述矩形图像和通过将所述矩形图像分别向上和向下扩展所述宽度阈值而形成的区域二值化; 在矩形图像的中间一列上搜索满足预设比例的列线段; 分别向上和向下平移包含矩形图像和列线段的正方形图像的对角线; 在平移对角线上的正方形图像的边缘上搜索并记录黑白分界点并形成QR码的位置检测图案。可以快速找到接收到的QR码的位置检测图案，从而减少系统的数据操作量。

9. 发明公开

EP3309703A1 METHOD AND SYSTEM FOR DECODING QR CODE BASED ON WEIGHTED AVERAGE GREY METHOD 有权
标题翻译：基于加权平均灰色方法解码QR码的方法和系统
公开(公告)号：EP3309703A1
公开(公告)日：2018-04-18
申请号：EP16827272.2
申请日：2016-07-22
申请人： Fujian Landi Commercial Equipment Co., Ltd
发明人： JIANG, Shengzhang , WU, Weidong
IPC分类号： G06K7/10
CPC分类号： G06K7/1417 , G06K7/10 , G06T7/12 , G06T7/136 , G06T7/187
摘要： The invention provides a method and system for decoding two-dimensional code using weighted average gray-scale algorithm. The method comprises: segmenting a received two-dimensional code image into bit regions each containing one bit data; presetting a shifting threshold, and shifting four original boundary lines of the bit region outwards by a distance of the shifting threshold to obtain four preset boundary lines; calculating an average gray-scale value of the bit region using the weighted average algorithm by taking an overlapping area between pixels inside the four preset boundary lines and the bit region as a weight; binarizing the two-dimensional code image according to the average gray-scale value of the bit region; and decoding the binarized two-dimensional code image. The influence of the pixels which have an overlapping area with the bit region on the average gray-scale value of the bit region is fully considered, and the decoding accuracy and success rate are high.
摘要翻译：本发明提供了一种使用加权平均灰度算法解码二维码的方法和系统。该方法包括：将接收到的二维码图像分割成各自包含一个比特数据的比特区域; 预设移位阈值，并将位区域的四条原始边界线向外移位移位阈值的距离，得到四条预设边界线; 通过将所述四个预设边界线内的像素与所述比特区域之间的重叠区域作为权重，使用所述加权平均算法计算所述比特区域的平均灰度值; 根据位区域的平均灰度值对二维码图像进行二值化; 并对二值化的二维码图像进行解码。充分考虑了与位区重叠的像素对位区平均灰度值的影响，解码精度和成功率都很高。

10. 发明授权

EP3309704B1 TWO-DIMENSIONAL CODE PARTITIONING AND DECODING METHOD AND SYSTEM 有权
公开(公告)号：EP3309704B1
公开(公告)日：2020-09-30
申请号：EP16829811.5
申请日：2016-07-22
申请人： Fujian Landi Commercial Equipment Co., Ltd
发明人： JIANG, Shengzhang , WU, Weidong
IPC分类号： G06K7/10 , G06K7/14

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