Free hand-written number string mold separator and separation method
A digital string, non-restrictive technology, applied in the field of automatic handwritten character recognition, can solve the problems of blindness in segmentation path search, without considering handwritten digital strings, and being susceptible to noise interference.
Inactive Publication Date: 2006-09-13
BEIJING UNIV OF POSTS & TELECOMM
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At the same time, they also have the following common shortcomings: ① lack of pertinence to specific application objects, and these methods do not consider the characteristics of handwritten digit strings to perform personalized segmentation; ② the blindness of the segmentation path search is large, and the Some obviously unreasonable paths also need to be tested, resulting in excessive calculation cost; ③The whole search is a process of gradually performing local calculations, which is easily disturbed by noise, and the algorithm itself also has the problem of falling into local optimum. In practice, the optimal lack of solution
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[0067] figure 1 It is a schematic diagram of the mold cutting device for unrestricted free handwritten digit strings, such as figure 1 As shown, a kind of mold cutting device of unrestricted free handwritten numeral string of the present invention is realized by following technical scheme, and this device comprises:
[0068] Digital string input device 1, for inputting handwritten character strings to image storage unit 2;
[0069] The image storage unit 2 is used for storing the handwritten character string information from the digital string input device 1 .
[0070] The mold database 3 is used to store data information of 5 pre-set types of segmentation molds, so that during segmentation, under the control of the control processing device 4, the digital character strings to be processed are sequentially tentatively segmented;
[0071] Die comparison and segmentation position storage device 5, used to compare the data information on the right side of the number with 5 type...
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The present invention discloses one kind of multi-mold separating device and method for free hand-written number string. The device includes number string input unit, image memory unit, mold data base, mold comparing and separating position memory, expense calculating processor, mold selector, single word separating result output unit and control process. The method generalizes the connection characteristic between characters in number string to obtain one set of curve separating molds and converts the character separating procedure into the mold trial and mold optimizing procedure. The present invention has algorithm superior to available ones.
Description
technical field [0001] The invention relates to a technology for automatic recognition of handwritten characters, in particular to a device and method for preprocessing before recognition of handwritten digit strings and unrestricted free handwritten digit strings before recognition. Background technique [0002] Although the automatic recognition technology of handwritten numbers has been practically applied in financial and tax form processing, automatic mail sorting and other fields, these applications all have to write numbers into fixed position frames to limit the consecutive strokes between numbers . With the constraints of the frame, it is easier to segment the numbers from the image one by one for recognition. If there is no grid constraint, unrestricted free handwritten number strings are often glued together, and there are also phenomena of covering and broken pens. At this time, the segmentation of handwritten number strings becomes a difficult problem. [0003...
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IPC IPC(8): G06K9/62G01B11/24G06K9/42
Inventor 吴铭张洪刚郭军张闯
Owner BEIJING UNIV OF POSTS & TELECOMM