CN1451944A - Method for measuring length of textile fibre - Google Patents
Method for measuring length of textile fibre Download PDFInfo
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- CN1451944A CN1451944A CN 03125118 CN03125118A CN1451944A CN 1451944 A CN1451944 A CN 1451944A CN 03125118 CN03125118 CN 03125118 CN 03125118 A CN03125118 A CN 03125118A CN 1451944 A CN1451944 A CN 1451944A
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- textile fibres
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Abstract
A method for measuring the length of textile fibre by computerized image processing system includes pretreating the fibre specimen, putting it on a plate with the color different from that of fibre, transmitting the fibre image to computer by image acquisition device, storing the image, processing, integration analysis, transforming the analyzed result to real size by image processing software, and printing out. Its advantages are high correctness and speed, and low cost.
Description
Technical field
The present invention relates to a kind of method of measuring textile fibres length, be applicable to multiple textile fibress such as wool, cashmere, camel's hair, ox suede and cotton, belong to the measuring method technical field.
Background technology
The employed multiple textile fibress such as cotton, wool, cashmere that mainly contain in the textile industry, fibre length is one of most important index of decision fiber quality, it not only determines the price of fiber but also directly influences its spinnability, so the fibre length detection is one of big event of textile raw material detection.
At present, the detection method that is adopted mainly contains following a few class in the world: 1, manual detection: by testing staff's hand and eye, and on the basis of working specification on top of, the length of detection fibers.Shortcoming is that human error is big, and measuring speed is slow, influenced greatly by human factor.2, mechanical detection: all by or the part by machinery, finish the pre-service of tested fiber, measure with ruler then.Present main comb sheet method laniferous and Wella instrument mensuration, shortcoming is that last measurement result still exists personal error.3, Photoelectric Detection: the A Ermi bit length instrument mensuration that mainly contains Switzerland at present, mainly be by high-precision axostylus axostyle control survey planker by stepper motor, hold neat fiber sample level with both hands with one and pass through inductor, produce corresponding measuring-signal by the D/A transducer along with the pulsed frequency of steering logic device emission is changed simultaneously stepper motor according to pulse step, these are equivalent to offer computing machine along the equidistant measurement point of the fiber of sample, determine the eigenwert of fiber according to the measured value of 1200 little processing, its result may be displayed on the display, also can be exported by terminal printer.Shortcoming is that price is too high, and general enterprise and mechanism are difficult to accept, and there is certain error in the result.
Summary of the invention
The object of the present invention is to provide a kind of method of the measurement textile fibres length of finishing by Computer Image Processing, the fibre image on the flat board is sent to computing machine, export the result after to Flame Image Process by image processing software with image capture device.
Technical scheme of the present invention is achieved in that the method for this measurement textile fibres length, it is characterized in that:
(1), The pretreatment: fiber sample placed with fiber color constitute on the flat board of contrast background;
(2), by image input device the fibre image on the flat board is sent to computing machine;
(3), computing machine is preserved processing, integral analysis to image;
(4), image processing software is according to the yardstick of demarcating, and integral result is converted into measurement result;
(5), result's printout.
The method of the sample pretreatment described in the method step (1) of described measurement textile fibres length is that fibre finish is become a tuftlet that aligns on one side, evenly is arranged on the black flat board, Yi Bian wherein be neat.
Image input device described in the method (2) of described measurement textile fibres length comprises: digital camera, scanner, camera and other collecting image of computer equipment.
Flame Image Process described in the method step (3) of described measurement textile fibres length comprises noise removing, and the fibre image profile is tinted, and statistics is coated with the length of color part, integral analysis line by line.
Measuring reduced parameter in the described step of method (4) of described measurement textile fibres length comprises: average length, intermediate length, standard deviation, the coefficient of variation, short fibre content.
Technical progress effect of the present invention shows: compare with external Almeter instrument measuring method, owing to use the mode images acquired of shooting or scanning, the Computer Processing image greatly reduces the cost of instrument, reduce the error that manual measurement brings, improved measuring speed.
Description of drawings
Fig. 1 is the image that fiber scanning of the present invention obtains
Fig. 2 is the image that obtains behind the Computer Processing denoising
Fig. 3 is the image that obtains after the fibre image coating white is handled
White portion is a fiber among the figure, and black partly is background
Embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is described:
(1), The pretreatment: be applicable to multiple textile fibress such as wool, cashmere, camel's hair, ox suede and cotton.Get the fiber of 0.02 gram, be organized into a tuftlet of alignment on one side, evenly be arranged on the hardboard that is stained with black velveteen cloth with hand, Yi Bian wherein be neat, the size 20 * 30CM of plank.
(2), the scanning of image: the plate that sequences is placed on the scanner, and scanning obtains image, arranges the result as shown in Figure 1.
(3), computing machine carries out Flame Image Process
Because the background of scanner is not necessarily black entirely, so can stay the white point or the bright spot of some ground unrest one non-fibers, as shown in Figure 1, computer program at first carries out denoising to picture to be handled, and obtains Fig. 2;
Accurate profile pars fibrosa coating white to Fig. 2 fibre image obtains Fig. 3;
Image to Fig. 3 is lined by line scan: demarcate the length of white portion, count the fibers length distribution situation.
Above-mentioned steps for example can be selected general image treatment software: photoshop, Draw, Auto CAD, 3D max etc. finish, and also can edit special software and finish.(4), the computing machine integral analysis: the fibre length according to demarcating, integral result is converted into measurement result, for example the length of fiber is added up with data processing softwares such as Microsoft Excel.
Above-mentioned several parameters can be calculated according to formula: the standard deviation computing formula:
In the formula: the S-standard deviation
The every fibre length that X-is measured
The average length of the measured fiber of X-
The scanning radical coefficient of variation computing formula that n-is total:
In the formula: the C.V-coefficient of variation
The S-standard deviation
X-average length short fibre content computing formula
In the formula: P (%)-short fibre content
n
d-staple fibre radical
L
d-staple length
N-always scans radical
L-average length (5), result's printout: output parameter comprises as a result: average length, intermediate length, standard deviation, the coefficient of variation, short fibre content, output device can use printer.
Measuring method characteristics of the present invention are to replace manual measurement, rely on Computer Image Processing and calculate the various parameters of associated fiber length, can utilize common software of the prior art to finish also can to edit special software to finish.
The fibre length that adopts method of the present invention to measure is 2～300mm, tested fibre diameter: more than 10 microns; The cross section is circular fiber; Contain all flexible fibers and inflexibility fiber.The present invention detects cost only 1/20 of external instrument, for enterprise saves substantial contribution, and is that country saves many foreign exchanges, fills up the blank of the artificial Intelligent Measurement fibre length of China.
Claims (5)
1, a kind of method of measuring textile fibres length is characterized in that:
(1), The pretreatment: fiber sample placed with fiber color constitute on the flat board of contrast background;
(2), by image input device the fibre image on the flat board is sent to computing machine;
(3), computing machine is preserved processing, integral analysis to image;
(4), image processing software is according to the yardstick of demarcating, and integral result is converted into measurement result;
(5), result's printout.
2, the method for measurement textile fibres length according to claim 1 is characterized in that: the method for the sample pretreatment described in the step (1) is that fibre finish is become a tuftlet that aligns on one side, evenly is arranged on the black flat board, Yi Bian wherein be neat.
3, the method for measurement textile fibres length according to claim 1 is characterized in that the image input device described in the step (2) comprises: digital camera, scanner, camera and other collecting image of computer equipment.
4, the method for measurement textile fibres length according to claim 1 is characterized in that the Flame Image Process described in the step (3) comprises noise removing, and the fibre image profile is tinted, and statistics is coated with the length of color part, integral analysis line by line.
5, the method for measurement textile fibres length according to claim 1 is characterized in that measuring in the described step (4) parameter that converts and comprises: average length, intermediate length, standard deviation, the coefficient of variation, short fibre content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031251188A CN1165745C (en) | 2003-05-09 | 2003-05-09 | Method for measuring length of textile fibre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031251188A CN1165745C (en) | 2003-05-09 | 2003-05-09 | Method for measuring length of textile fibre |
Publications (2)
| Publication Number | Publication Date |
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| CN1451944A true CN1451944A (en) | 2003-10-29 |
| CN1165745C CN1165745C (en) | 2004-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031251188A Expired - Fee Related CN1165745C (en) | 2003-05-09 | 2003-05-09 | Method for measuring length of textile fibre |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296679C (en) * | 2004-12-14 | 2007-01-24 | 东华大学 | Length and linear density combined test method of synthesized fiber |
| CN102645166A (en) * | 2012-04-12 | 2012-08-22 | 东华大学 | Rapid low-cost measuring method for fiber length |
| CN103234472A (en) * | 2013-03-07 | 2013-08-07 | 四川省草原科学研究院 | Detecting method and detecting system for fiber fineness and density of Rex-rabbit clothing hair |
| CN103344188A (en) * | 2013-03-07 | 2013-10-09 | 四川省草原科学研究院 | Detector for fiber fineness and density of clothing hair of Rex rabbit |
| CN106767439A (en) * | 2017-02-13 | 2017-05-31 | 北京和众视野科技有限公司 | Natural textile fiber length-measuring appliance and its measuring method |
| CN109029256A (en) * | 2018-07-10 | 2018-12-18 | 内蒙古工业大学 | A kind of point comb cashmere length detecting method based on maximum between-cluster variance |
-
2003
- 2003-05-09 CN CNB031251188A patent/CN1165745C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296679C (en) * | 2004-12-14 | 2007-01-24 | 东华大学 | Length and linear density combined test method of synthesized fiber |
| CN102645166A (en) * | 2012-04-12 | 2012-08-22 | 东华大学 | Rapid low-cost measuring method for fiber length |
| CN102645166B (en) * | 2012-04-12 | 2014-07-23 | 东华大学 | Rapid low-cost measuring method for fiber length |
| CN103234472A (en) * | 2013-03-07 | 2013-08-07 | 四川省草原科学研究院 | Detecting method and detecting system for fiber fineness and density of Rex-rabbit clothing hair |
| CN103344188A (en) * | 2013-03-07 | 2013-10-09 | 四川省草原科学研究院 | Detector for fiber fineness and density of clothing hair of Rex rabbit |
| CN106767439A (en) * | 2017-02-13 | 2017-05-31 | 北京和众视野科技有限公司 | Natural textile fiber length-measuring appliance and its measuring method |
| CN109029256A (en) * | 2018-07-10 | 2018-12-18 | 内蒙古工业大学 | A kind of point comb cashmere length detecting method based on maximum between-cluster variance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1165745C (en) | 2004-09-08 |
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