CN103761506A - Method for recognizing fissured tongue based on support vector machine - Google Patents
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Abstract
The invention discloses a method for recognizing a fissured tongue based on a support vector machine. The method for recognizing the fissured tongue based on the support vector machine comprises the following steps that (1) a fissured tongue feature training sample set is established; (2) a fissured tongue classifier based on the support vector machine is established; (3) the fissured tongue classifier based on the support vector machine is used for conducting recognition, and whether each sample to be detected in a fissure feature sample set of the tongue to be detected belongs to a fissured tongue picture is recognized. According to the method for recognizing the fissured tongue based on the support vector machine, reorganization can be further conducted based on a detected suspected tongue fissure area. The method is the continuation of an existing computer fissured tongue detection method. By the adoption of the method for recognizing the fissured tongue based on the support vector machine, through training of a disposable sample set, recognition work can be completed, setting of any other parameters and artificial factor intervention are not needed in the recognition process, and full-automatic recognition of the fissured tongue is achieved.
Description
Technical field
The present invention relates to a kind of fissured tongue recognition methods based on support vector machine, belong to technical field of image processing.
Background technology
Traditional Chinese medical science basic skills has four kinds, that is: hope, hear, ask, cut, and in observation, a people's tongue picture can reflect his health status.The feature of tongue picture comprises the aspects such as crackle, indentation, tongue fur, ecchymosis, petechia clinically, they have played respectively different indicative functions in diagnosis, wherein in tongue, there is crackle, be commonly called as fissured tongue, its feature is on back, to form zanjon, the picture vein that the orientation of ditch has, some picture brain lines, so fissured tongue also has the title of fern leaf tongue and brain line tongue.General patient is if there is the sign of fissured tongue, and they are mostly accompanied by heat and contain that impairment of yin, the deficiency of blood are not moistened, the insufficiency of the spleen wet disease such as soak so.But the development of the traditional Chinese medical science now still exists sizable subjective experience judgement, most of fissured tongue diagnostic result is subject to the restriction of the artificial subjective factors such as know-how, thinking ability, diagnostic skill, lacks objective appraisal foundation and unified evaluation criterion.Therefore, industry is needed a kind of objectively fissuring of tongue recognition methods automatically badly.
At present, utilizing the recognition methods of the fissuring of tongue of computer technology first will from lingual surface image, extract may be the doubtful region of fissuring of tongue, and then relies on artificial demarcation to determine whether really to exist fissuring of tongue.For example, Liu L.L. and Zhang D., Extracting Tongue Cracks Using the Wide Line Detector, ICMB 2008, LNCS 4901, pp. 49-56, 2008, the wide thread detector algorithm of the method utilization with parameter processed and only obtained doubtful fissuring of tongue region lingual surface image, whether can not determine on given lingual surface image necessary being fissuring of tongue, also need doubtful fissuring of tongue region to do further recognition and verification operation, therefore, the method fissuring of tongue identification subjectivity is strong, repeatable poor, and cannot be applied to real clinical Evolution of Tongue Inspection of TCM.
Summary of the invention
The object of the invention is to the deficiency existing for prior art, a kind of fissured tongue recognition methods based on support vector machine is proposed, the method adopts support vector machine as sorter, the wide thread detector algorithm that to utilize parameter be r is processed lingual surface image, take parameter r with the statistic such as span, the area span in doubtful fissuring of tongue region compare as proper vector, utilize computer simulation Traditional Chinese Medicine experts automatically to identify crackle tonguing row, and then overcome strong, the repeatable poor shortcoming of traditional fissured tongue identification subjectivity.
In order to achieve the above object, the present invention adopts following technical proposals.
Fissured tongue recognition methods based on support vector machine of the present invention, the method comprises the steps:
(1), set up schistoglossia line features training sample set;
(2), build the fissured tongue sorter based on support vector machine;
(3), utilize fissured tongue sorter based on support vector machine to identify, identify each sample to be tested that fissuring of tongue feature samples to be measured concentrates and whether belong to crackle tongue picture.
Above-mentioned steps (1) is described sets up fissuring of tongue features training sample set, and its concrete steps are as follows:
(11), with Snake partitioning algorithm, the photo that lolls of face being carried out to lingual surface cuts apart, obtain some width lingual surface images, identifying all lingual surface images is divided into lingual surface image: crackle tongue picture class lingual surface image and non-crackle tongue picture class lingual surface image, adopt respectively " Sgn " mark 1 or-1 mark lingual surface image, and with the form of RGB image, deposit respectively that fissured tongue resembles Sample Storehouse, non-fissured tongue resembles Sample Storehouse in, the training sample set that crackle tongue picture class lingual surface image construction mark " Sgn " is 1, the training sample set that non-crackle tongue picture class lingual surface image construction mark " Sgn " is-1;
(12), adopt parameter to be
wide thread detector algorithm to training sample, concentrate the B in i width lingual surface image rgb space to divide spirogram to process, obtain the bianry image in the doubtful region of fissuring of tongue of i width lingual surface image, each bright connected region in the bianry image in the doubtful region of fissuring of tongue of i width lingual surface image is doubtful fissuring of tongue region, is designated as
;
(13) calculate, respectively the span value in the doubtful fissuring of tongue region in i width bianry image, area span value ratio, the standard deviation of the standard deviation of span value, the ratio of area span value, and then obtain crack vector, its concrete steps are as follows:
(131), calculate respectively the span value in the each doubtful fissuring of tongue region in i width bianry image
, this span value is the maximal value in any two points distance on doubtful fissuring of tongue regional graphics profile, by span value sequence
descending sort, therefrom extracts first span value, second largest span value, the third-largest span value, is designated as respectively:
,
,
;
(132), calculate respectively first span value, second largest span value, the third-largest span value
,
,
the corresponding area of corresponding bright connected region
,
,
, calculate according to the following formula the ratio of the span value bright connected region area corresponding to it in i width bianry image, be denoted as
;
(133), the standard deviation of the doubtful fissuring of tongue region span value in i width bianry image is set, be denoted as
, computing method are as follows;
(134), the standard deviation of the ratio of the doubtful fissuring of tongue region area span value in i width bianry image is set, be denoted as
, computing method are as follows;
(135), by described in above-mentioned steps (12), step (131), step (132), step (133), step (134)
,
,
,
,
,
,
,
,
and the crack vector of a training sample of Sgn composition;
(14), the fissured tongue proper vector of all training samples has formed fissuring of tongue features training sample set.
The fissured tongue sorter of structure described in above-mentioned steps (2) based on support vector machine, its concrete steps are as follows:
(21) the fissuring of tongue features training sample set input support vector machine, step (1) being obtained;
(22), fissuring of tongue features training sample set is trained, obtain training pattern, by this training pattern, be built into the fissured tongue sorter based on support vector machine;
The fissured tongue sorter of utilization described in above-mentioned steps (3) based on support vector machine identified, and identifies each concentrated sample to be tested of fissuring of tongue feature samples to be measured and whether belongs to crackle tongue picture, and its concrete steps are as follows:
(31), utilize Snake partitioning algorithm that the face photo that lolls is carried out lingual surface and cut apart, obtain some lingual surface images to be identified, by some lingual surface image construction to be identified lingual surface image pattern to be identified collection;
(32), adopt parameter to be
wide thread detector algorithm to lingual surface image pattern to be identified, concentrate the B in i width lingual surface image rgb space to divide spirogram to process, obtain the bianry image in the doubtful region of fissuring of tongue in i width lingual surface image to be identified, each bright connected region in the bianry image in the doubtful region of fissuring of tongue of this i width lingual surface image to be identified is doubtful fissuring of tongue region, is designated as
;
(33) calculate, respectively the standard deviation of the ratio of standard deviation, the area span value of the span value in the doubtful fissuring of tongue region in above-mentioned i lingual surface bianry image to be identified to be identified, obtain crack vector, its concrete steps are as follows:
(331), calculate the span value of the each bright connected region in i width bianry image to be identified
, this span value to be identified is the maximal value in any two points distance on bright connected region graph outline, by span value sequence
descending sort is also therefrom extracted first span value to be identified, second largest span value to be identified, the third-largest span value to be identified, is designated as respectively:
(332), calculate respectively first span value to be identified, second largest span value to be identified, the third-largest span value to be identified
,
,
the corresponding area of corresponding bright connected region
, calculate according to the following formula the ratio of the each span value bright connected region area corresponding to it in i width bianry image to be identified, be denoted as
;
(333), the standard deviation of the bright connected region span value in lingual surface i width bianry image to be identified is set, be denoted as
;
(334), the standard deviation of the bright connected region area span ratio in lingual surface i width bianry image to be identified is set
;
(335), by described in above-mentioned steps (32), step (331), step (332), step (333), step (334)
,
,
,
,
,
,
,
,
,
the crack vector of a training sample to be identified of composition;
(34), the proper vector of the crackle of all samples to be identified forms crack sample set to be identified;
(35), utilize the fissured tongue sorter based on support vector machine described in step (2) to identify, identify the described concentrated sample to be tested of fissuring of tongue feature samples to be identified of step (34) and whether belong to crackle tongue picture.
The advantage having compared with the method for the fissured tongue recognition methods based on support vector machine of the present invention and Traditional Chinese Medicine visual observations crackle tongue picture is: the method adopts support vector machine as sorter, the wide thread detector algorithm that to utilize parameter be r is processed lingual surface image, fissuring of tongue proper vector take statistics such as the span value in parameter r and doubtful fissuring of tongue region, area span ratios as training sample, utilize computer simulation Traditional Chinese Medicine experts to identify crackle tongue picture, there is repeatability; The method is detecting on the basis in doubtful fissuring of tongue region, can provide further identification, it is the continuation of active computer fissuring of tongue detection method, the method is utilized disposable sample set training, can complete identification work, and in crackle tongue picture identifying without any need for other parameter arrange and artifact intervention, realized full-automatic identification fissured tongue; The method simulation traditional Chinese medical science, to the identification of crackle tongue picture, overcomes the defect that subjectivity is strong, nothing is sought unity of standard of traditional Chinese medical science visual observations crackle tongue picture.
Accompanying drawing explanation
Fig. 1 is the main-process stream block diagram of the fissured tongue recognition methods based on support vector machine of the present invention;
Fig. 2 is the described process flow diagram of asking crack vector of step in Fig. 1 (1);
Fig. 3 is the described process flow diagram of asking crack vector of step in Fig. 1 (3);
Fig. 4 adopts the fissured tongue recognition methods based on support vector machine of the present invention to identify the lingual surface image of a width fissured tongue;
Fig. 5 is the classifying quality table 1 of 100 lingual surface images to be identified in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing 1, embodiments of the invention are described in further detail.
The present embodiment is implemented take technical scheme of the present invention as prerequisite:
As shown in Figure 1, the fissured tongue recognition methods based on support vector machine of the present invention, its concrete steps are as follows:
(1), set up fissuring of tongue features training sample set, as shown in Figure 2, its concrete steps are as follows:
(11), adopting Snake partitioning algorithm to carry out lingual surface to the photo that lolls of 441 width faces cuts apart, obtain 441 width lingual surface images, identify all lingual surface images and whether have crackle, all lingual surface images of having identified are divided into: crackle tongue picture class lingual surface image, with non-crackle tongue picture class lingual surface image, adopt respectively " Sgn " mark 1 or-1 mark lingual surface image, and with the form of RGB image, deposit respectively fissured tongue in and resemble Sample Storehouse, non-fissured tongue resembles Sample Storehouse, the training sample set that crackle tongue picture class lingual surface image construction mark " Sgn " is 1, the training sample set that non-crackle tongue picture class lingual surface image construction mark " Sgn " is-1,
(12), adopt parameter
be that 12 wide thread detector algorithm concentrates the B in i width lingual surface image rgb space to divide spirogram to process to training sample, obtain the bianry image in the doubtful region of fissuring of tongue of i width lingual surface image, each bright connected region in the bianry image in the doubtful region of fissuring of tongue of this i width lingual surface image is doubtful fissuring of tongue region, is designated as
;
(13) calculate, respectively the standard deviation of the ratio of standard deviation, the area span value of the span value in the doubtful fissuring of tongue region in i width bianry image, and then obtain crack vector, its concrete steps are as follows:
(131), calculate respectively the span value in the each doubtful fissuring of tongue region in i width bianry image
, this span value is the maximal value in any two points distance on doubtful fissuring of tongue regional graphics profile, by span value sequence
descending sort, therefrom extracts first span value, second largest span value, the third-largest span value, is designated as respectively:
,
,
;
(132), calculate respectively first span value, second largest span value, the third-largest span value
,
,
the corresponding area of corresponding bright connected region
,
,
, calculate according to the following formula the ratio of the span value bright connected region area corresponding to it in i width bianry image, be denoted as
;
(134), the standard deviation of the doubtful fissuring of tongue region span value in i width bianry image is set, be denoted as
, computing method are as follows;
(135), the standard deviation of the ratio of the doubtful fissuring of tongue region area span value in i width bianry image is set, be denoted as
, computing method are as follows;
(135), by described in above-mentioned steps (12), step (131), step (132), step (133), step (134)
,
,
,
,
,
,
,
,
,
the crack vector of a training sample of composition;
(14), the fissured tongue proper vector of all training samples has formed fissuring of tongue features training sample set;
(2), build fissured tongue sorter based on support vector machine, its concrete steps are as follows:
(21) the fissuring of tongue features training sample set input support vector machine, step (1) being obtained;
(22), fissuring of tongue features training sample set is trained, obtain training pattern, by this training pattern, be built into the fissured tongue sorter based on support vector machine;
(3), utilize fissured tongue sorter based on support vector machine to identify, identify each sample to be tested that fissuring of tongue feature samples to be measured concentrates and whether belong to crackle tongue picture, as shown in Figure 4, its concrete steps are as follows:
(31), utilize Snake partitioning algorithm that the 100 width faces photo that lolls is carried out lingual surface and cut apart, obtain 100 lingual surface images to be identified, by 100 lingual surface image construction to be identified lingual surface image pattern to be identified collection;
(32), adopt parameter to be
wide thread detector algorithm to lingual surface image pattern to be identified, concentrate the B in i width lingual surface image rgb space to divide spirogram to process, obtain the bianry image in the doubtful region of fissuring of tongue of i width to be identified, the each bright connected region in the bianry image in this doubtful region of fissuring of tongue to be identified;
(33) calculate, respectively the standard deviation of the ratio of standard deviation, the area span value of the span value in the each doubtful fissuring of tongue region in above-mentioned i lingual surface bianry image to be identified to be identified, obtain crack vector, as shown in Figure 3, its concrete steps are as follows:
(331), calculate the span value of the each bright connected region in i width bianry image to be identified
this span value to be identified is the maximal value in any two points distance on bright connected region graph outline, by span value sequence
descending sort is also therefrom extracted first span value to be identified, second largest span value to be identified, the third-largest span value to be identified, is designated as respectively:
(332), calculate respectively first span value to be identified, second largest span value to be identified, the third-largest span value to be identified
,
,
the corresponding area of corresponding bright connected region
,
,
, calculate according to the following formula the ratio of the each span value bright connected region area corresponding to it in i width bianry image to be identified, be denoted as
;
(333), the standard deviation of the bright connected region span value in lingual surface i width bianry image to be identified is set, be denoted as
;
(334), the standard deviation of the bright connected region area span ratio in lingual surface i width bianry image to be identified is set
;
(335), by described in above-mentioned steps (32), step (331), step (332), step (333), step (334)
,
,
,
,
,
,
,
,
,
the crack vector of a training sample to be identified of composition;
(34), the proper vector of the crackle of all samples to be identified forms crack sample set to be identified;
(35), utilize the fissured tongue sorter based on support vector machine described in step (2) to identify, identify the described concentrated sample to be tested of fissuring of tongue feature samples to be identified of step (34) and whether belong to crackle tongue picture.
For the recognition effect of verifying the fissured tongue recognition methods based on support vector machine of the present invention has carried out following experiment, in experiment, adopting wide thread detector parameter r is 12, training sample source is the photo that lolls of 441 width faces, wherein, crackle tongue picture picture is 220 width, and non-crackle tongue picture picture is 221 width.After passing through the above-mentioned fissured tongue sorter training pattern based on support vector machine of training sample training formation, clinically 200 lingual surface images to be identified have been randomly drawed, wherein 100 width are crackle tongue picture, 100 width are non-crackle tongue picture, after artificial mark, utilize training pattern of the present invention to classify, its classification results, as shown in Figure 5, in table 1, there is flawless to represent that classification results is crackle tongue picture and non-crackle tongue picture; Accuracy rate is the number of sample and the ratio of such total sample number that certain class is correctly classified; Total accuracy rate is number of samples that in two types of samples, all quilts are correctly classified and the ratio of two types of total sample number; Total accuracy rate of final fissured tongue classification is 91.5%, and effect is stood head and shoulders above others.As can be seen from Table 1, in crackle tongue picture identifying, realized full-automatic identification fissured tongue, the method simulation traditional Chinese medical science, to the identification of crackle tongue picture, overcomes the strong shortcoming of subjectivity of traditional Chinese medical science visual observations crackle tongue picture.
Claims (4)
1. the fissured tongue recognition methods based on support vector machine, is characterized in that, the method comprises the steps:
(1), set up schistoglossia line features training sample set;
(2), build the fissured tongue sorter based on support vector machine;
(3), utilize fissured tongue sorter based on support vector machine to identify, identify each sample to be tested that fissuring of tongue feature samples to be measured concentrates and whether belong to crackle tongue picture.
2. the fissured tongue recognition methods based on support vector machine according to claim 1, is characterized in that, above-mentioned steps (1) is described sets up fissuring of tongue features training sample set, and its concrete steps are as follows:
(11), with Snake partitioning algorithm, the photo that lolls of face being carried out to lingual surface cuts apart, obtain some width lingual surface images, identifying all lingual surface images is divided into lingual surface image: crackle tongue picture class lingual surface image and non-crackle tongue picture class lingual surface image, adopt respectively " Sgn " mark 1 or-1 mark lingual surface image, and with the form of RGB image, deposit respectively that fissured tongue resembles Sample Storehouse, non-fissured tongue resembles Sample Storehouse in, the training sample set that crackle tongue picture class lingual surface image construction mark " Sgn " is 1, the training sample set that non-crackle tongue picture class lingual surface image construction mark " Sgn " is-1;
(12), adopt parameter to be
wide thread detector algorithm to training sample, concentrate the B in i width lingual surface image rgb space to divide spirogram to process, obtain the bianry image in the doubtful region of fissuring of tongue of i width lingual surface image, each bright connected region in the bianry image in the doubtful region of fissuring of tongue of i width lingual surface image is doubtful fissuring of tongue region, is designated as
;
(13) calculate, respectively the span value in the doubtful fissuring of tongue region in i width bianry image, area span value ratio, the standard deviation of the standard deviation of span value, the ratio of area span value, and then obtain crack vector, its concrete steps are as follows:
(131), calculate respectively the span value in the each doubtful fissuring of tongue region in i width bianry image
, this span value is the maximal value in any two points distance on doubtful fissuring of tongue regional graphics profile, by span value sequence
descending sort, therefrom extracts first span value, second largest span value, the third-largest span value, is designated as respectively:
,
,
;
(132), calculate respectively first span value, second largest span value, the third-largest span value
,
,
the corresponding area of corresponding bright connected region
,
,
, calculate according to the following formula the ratio of the span value bright connected region area corresponding to it in i width bianry image, be denoted as
;
(133), the standard deviation of the doubtful fissuring of tongue region span value in i width bianry image is set, be denoted as
, computing method are as follows;
(134), the standard deviation of the ratio of the doubtful fissuring of tongue region area span value in i width bianry image is set, be denoted as
, computing method are as follows;
(135), by described in above-mentioned steps (12), step (131), step (132), step (133), step (134)
,
,
,
,
,
,
,
,
, a training sample of Sgn composition crack vector;
(14), the fissured tongue proper vector of all training samples has formed fissuring of tongue features training sample set.
3. the fissured tongue recognition methods based on support vector machine according to claim 2, is characterized in that, the fissured tongue sorter of the described structure of above-mentioned steps (2) based on support vector machine, and its concrete steps are as follows:
(21) the fissuring of tongue features training sample set input support vector machine, step (1) being obtained;
(22), fissuring of tongue features training sample set is trained, obtain training pattern, by this training pattern, be built into the fissured tongue sorter based on support vector machine.
4. the fissured tongue recognition methods based on support vector machine according to claim 3, it is characterized in that, the fissured tongue sorter of utilization described in above-mentioned steps (3) based on support vector machine identified, identify each concentrated sample to be tested of fissuring of tongue feature samples to be measured and whether belong to crackle tongue picture, its concrete steps are as follows:
(31), utilize Snake partitioning algorithm that the face photo that lolls is carried out lingual surface and cut apart, obtain some lingual surface images to be identified, by some lingual surface image construction to be identified lingual surface image pattern to be identified collection;
(32), adopt parameter to be
wide thread detector algorithm to lingual surface image pattern to be identified, concentrate the B in i width lingual surface image rgb space to divide spirogram to process, obtain the bianry image in the doubtful region of fissuring of tongue in i width lingual surface image to be identified, each bright connected region in the bianry image in the doubtful region of fissuring of tongue of this i width lingual surface image to be identified is doubtful fissuring of tongue region, is designated as
;
(33) calculate, respectively the standard deviation of the ratio of standard deviation, the area span value of the span value in the doubtful fissuring of tongue region in above-mentioned i lingual surface bianry image to be identified to be identified, obtain crack vector, its concrete steps are as follows:
(331), calculate the span value of the each bright connected region in i width bianry image to be identified
, this span value to be identified is the maximal value in any two points distance on bright connected region graph outline, by span value sequence
descending sort is also therefrom extracted first span value to be identified, second largest span value to be identified, the third-largest span value to be identified, is designated as respectively:
;
(332), calculate respectively first span value to be identified, second largest span value to be identified, the third-largest span value to be identified
the corresponding area of corresponding bright connected region
,
,
, calculate according to the following formula the ratio of the each span value bright connected region area corresponding to it in i width bianry image to be identified, be denoted as
;
(333), the standard deviation of the bright connected region span value in lingual surface i width bianry image to be identified is set, be denoted as
;
(334), the standard deviation of the bright connected region area span ratio in lingual surface i width bianry image to be identified is set
;
(335), by described in above-mentioned steps (32), step (331), step (332), step (333), step (334)
,
,
,
,
,
,
,
,
, and
the crack vector of a training sample to be identified of composition;
(34), the proper vector of the crackle of all samples to be identified forms crack sample set to be identified;
(35), utilize the fissured tongue sorter based on support vector machine described in step (2) to identify, identify the described concentrated sample to be tested of fissuring of tongue feature samples to be identified of step (34) and whether belong to crackle tongue picture.
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104537379A (en) * | 2014-12-26 | 2015-04-22 | 上海大学 | High-precision automatic tongue partition method |
CN105787486A (en) * | 2015-12-11 | 2016-07-20 | 昆明理工大学 | Method for detecting girder cracks based on image processing |
CN105787486B (en) * | 2015-12-11 | 2019-04-09 | 昆明理工大学 | A kind of girder steel crack detecting method based on image procossing |
CN106683088A (en) * | 2016-12-28 | 2017-05-17 | 西北工业大学 | Road crack type identification method based on mobile phone sensor |
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