CN106127773A - A kind of foot type data capture method based on picture - Google Patents
A kind of foot type data capture method based on picture Download PDFInfo
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- CN106127773A CN106127773A CN201610485761.XA CN201610485761A CN106127773A CN 106127773 A CN106127773 A CN 106127773A CN 201610485761 A CN201610485761 A CN 201610485761A CN 106127773 A CN106127773 A CN 106127773A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10004—Still image; Photographic image
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Abstract
The invention discloses a kind of foot type data capture method based on picture, including shooting picture, picture pretreatment, obtain that foot length, foot are wide, calculate that instep is high, select footwear to mate five steps；First two foot type pictures of shooting, and photo is carried out pretreatment, extract foot type outline data；According to two parts of foot type outline datas, calculate foot length, foot width and front shank bump height respectively, obtain corresponding foot type parameter；Finally according to the sex of user, age, foot type supplemental characteristic, mate with brand and the style of online shopping mall money shoes, it is recommended that go out the optimal size of applicable user.The present invention can extract foot type data conveniently and efficiently, and carry out accurately size coupling according to foot type data for the shoes of different brands and type, the shoe body of purchasing on the net that user can be greatly improved is tested, reduce the return of goods rate caused because size is improper when user network purchases footwear, there is advantage simple to operate, easy to use, lower-cost.
Description
Technical field
The present invention relates to a kind of data capture method, particularly relate to a kind of foot type data capture method based on picture.
Background technology
Along with the progress of living standard, people are more and more higher to the requirement of wear shoes, more pay attention to the health of wear shoes and relax
Adaptive.But, incompatible with this, people are the most comprehensive to the understanding of oneself foot type, tend not to have bought suitable oneself
Shoes.Additionally, universal along with net purchase, increasing people select to buy footwear on the net, but be because SHOE STYLE or
It is improper that size selects, and causes return of goods rate to remain high always.The most existing mode obtaining foot type data has infrared
Laser type scanning device and structure light scan equipment, but both equipment to there is structure bulky, the high operation of huge, cost complicated
Defect so that they are poorly suitable for the modern mode requirement of the Internet high speed development.
Summary of the invention
In order to solve the weak point existing for above-mentioned technology, the invention provides a kind of foot type data based on picture and obtain
Access method.
In order to solve above technical problem, the technical solution used in the present invention is: a kind of foot type data based on picture obtain
Access method, comprises the following steps:
Step one, shooting picture: according to following requirement mobile phone two foot type pictures of shooting:
First pictures: prepare A4 blank sheet of paper, dark-background, dark socks；A4 blank sheet of paper is placed in dark-background, puts on dark color
Foot is also placed on A4 blank sheet of paper by socks, makes heel align with a minor face of A4 blank sheet of paper；Clap downwards from the upper center of instep
Take the photograph, make the edge of A4 blank sheet of paper try one's best concordant with its edges；
Second pictures: prepare light background, dark socks；Put on dark socks and foot is placed in light background；From foot
Medial surface shoots backward, and makes shorter perpendicular to the ground of shooting mobile phone；
Step 2, picture pretreatment: picture is carried out size adjusting, gradation conversion, splits and rotate pretreatment so that it is meet
Testing requirement, then extracts foot type outline data；
Step 3, obtain foot length, foot width: the first pictures is carried out above-mentioned picture pretreatment, obtains the foot type of the first pictures
Outline data；With first pixel in the picture upper left corner as zero, find out the pixel abscissa of tiptoe pointX 1, after foot
Pixel abscissa with pointW, calculate foot according to formula I long；Wherein,Representing that foot is long, unit is mm；
Formula I
Foot type outline data further according to the first pictures, it is judged that be left foot or right crus of diaphragm；If left foot, then the first sole of the foot toe closes
Node is up, the 5th metatarsophalangeal joints point is in lower section；If right crus of diaphragm, then Metatarsophalangeal joint point in lower section, the 5th sole of the foot toe closes
Node is up；Draw the pixel vertical coordinate of Metatarsophalangeal joint pointY 1, the pixel vertical coordinate of the 5th metatarsophalangeal joints pointY 2,
Foot width is calculated according to formula II；WhereinRepresenting foot width, unit is mm；
Formula II
Step 4, calculating instep are high: the second pictures carries out above-mentioned picture pretreatment, obtains the foot type data of the second pictures；
Find out the pixel abscissa value of heel pointX 3, the pixel abscissa value of tiptoe pointX 4, the pixel of front shank salient point vertical sits
Scale valueY 3, the pixel ordinate value of sole pointY 4, long in conjunction with foot calculated in step 3, count according to formula III
Calculation draws front shank bump height；Wherein,For front shank bump height, unit is mm；
Formula III
Step 5, footwear are selected to mate: the first sex of typing user, age information；When user opens online shopping mall's money shoes
During interface, it is judged that user's sex is the most consistent with shoes style；If it is inconsistent, do not carry out Intelligent Matching；If it is consistent, then
Obtain the sex of user, age, the above-mentioned foot type supplemental characteristic calculated, and the brand of these shoes and style information；
Check that foot type supplemental characteristic is the most correct；If incorrect, the most do not carry out Intelligent Matching, and provide foot type parameter error and carry
Show；If correct, then read and select footwear correction parameter file, and calculate Chinese code corresponding to this foot type and and standard foot type between
Chinese code increment；
Read the size synopsis that selected brand is corresponding with style；If reading unsuccessfully, then calculate matching result by universal method, and
Provide Intelligent Matching prompting；If reading successfully, then according to size synopsis and user profile, calculate optimal footwear code further,
And provide Intelligent Matching prompting.
In step 2, the concrete operation method of picture pretreatment is:
A, reading picture, adjust picture size to suitable dimension；
B, will adjust after picture be converted to gray-scale map, with LoG operator, gray-scale map is carried out rim detection；
C, utilization LSD line segment detection algorithm, by edge detection results, obtain the straightway data set of picture；
D, above-mentioned straightway data set is carried out Screening Treatment, obtain belonging to the straightway collection at A4 blank sheet of paper edge；
E, to belonging to the straightway collection at A4 blank sheet of paper edge, calculate the intersection point of any of which horizontal line section and vertical line segment, obtain
Four bunches of point sets, simulate four angle points of A4 blank sheet of paper；
F, four angle points according to A4 blank sheet of paper, be partitioned into A4 paper white area in the gray-scale map of step c, obtain new gray-scale map,
And new gray-scale map is rotated, it is ensured that tiptoe direction is all the time towards a left side；
G, with LoG operator, postrotational new gray-scale map is carried out rim detection, extract foot type outline data.
The present invention can extract foot type data conveniently and efficiently, and according to foot type data for different brands and type
Shoes carry out accurately size coupling, the shoe body of purchasing on the net that user can be greatly improved tests, reduce when user network purchases footwear because of
The return of goods rate that size is improper and causes, has advantage simple to operate, easy to use, lower-cost.
Accompanying drawing explanation
Fig. 1 is the overall flow chart of steps of the present invention.
Detailed description of the invention
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
As it is shown in figure 1, the present invention comprises the following steps:
Step one, shooting picture: according to following requirement mobile phone two foot type pictures of shooting:
First pictures: prepare A4 blank sheet of paper, dark-background, dark socks；A4 blank sheet of paper is placed in dark-background, puts on dark color
Foot is also placed on A4 blank sheet of paper by socks, makes heel align with a minor face of A4 blank sheet of paper；Clap downwards from the upper center of instep
Take the photograph, make the edge of A4 blank sheet of paper try one's best concordant with its edges；
The specification of standard A4 blank sheet of paper is 210mm*297mm, and foot is just stepped on A4 blank sheet of paper, as stepping on the scale.By
In define heel will with A4 blank sheet of paper while aliging, as long as therefore finding out the position of tiptoe point, can be under a proportional relationship
Calculate the parameter of foot length.Then long further according to the foot calculated, the first pictures finds the Metatarsophalangeal joint of foot type
Point and the 5th metatarsophalangeal joints point, calculate foot width parameter under a proportional relationship.
Second pictures: prepare light background, dark socks；Put on dark socks and foot is placed in light background；From
The medial surface of foot shoots backward, and makes shorter perpendicular to the ground of shooting mobile phone；
Find out heel point and the position of tiptoe point, then find out front shank salient point, according to the long parameter of the foot being previously obtained, according to than
Example relation can calculate front shank bump height.
Step 2, picture pretreatment: picture is carried out size adjusting, gradation conversion, splits and rotate pretreatment so that it is
Coincidence detection requirement, then extracts foot type outline data；
The concrete operation method of picture pretreatment is:
A, reading picture, adjust picture size to suitable dimension；
B, will adjust after picture be converted to gray-scale map, with LoG(Laplacian-of-Gaussian) gray-scale map carries out by operator
Rim detection；LoG operator is that image is done gaussian filtering, seeks a kind of algorithm of its Laplce's second dervative the most again, permissible
Effectively obtain image or the edge of object；
C, utilization LSD(Line Segment Detection) line segment detection algorithm, by edge detection results, obtain picture
Straightway data set；
D, above-mentioned straightway data set is carried out Screening Treatment, obtain belonging to the straightway collection at A4 blank sheet of paper edge；
E, to belonging to the straightway collection at A4 blank sheet of paper edge, calculate the intersection point of any of which horizontal line section and vertical line segment, obtain
Four bunches of point sets, simulate four angle points of A4 blank sheet of paper；
F, four angle points according to A4 blank sheet of paper, be partitioned into A4 paper white area in the gray-scale map of step c, obtain new gray-scale map,
And new gray-scale map is rotated, it is ensured that tiptoe direction is all the time towards a left side；
G, with LoG operator, postrotational new gray-scale map is carried out rim detection, extract foot type outline data.
Step 3, obtain foot length, foot width: the first pictures is carried out above-mentioned picture pretreatment, obtains the first pictures
Foot type outline data；With first pixel in the picture upper left corner as zero, find out the pixel abscissa of tiptoe pointX 1 、
The pixel abscissa of heel pointW, calculate foot according to formula I long；Wherein,Representing that foot is long, unit is mm；
Formula I
Foot type outline data further according to the first pictures, it is judged that be left foot or right crus of diaphragm；If left foot, then the first sole of the foot toe closes
Node is up, the 5th metatarsophalangeal joints point is in lower section；If right crus of diaphragm, then Metatarsophalangeal joint point in lower section, the 5th sole of the foot toe closes
Node is up；Draw the pixel vertical coordinate of Metatarsophalangeal joint pointY 1, the pixel vertical coordinate of the 5th metatarsophalangeal joints pointY 2,
Foot width is calculated according to formula II；WhereinRepresenting foot width, unit is mm.
Formula II
Step 4, calculating instep are high: the second pictures carries out above-mentioned picture pretreatment equally, is adjusted to suitable dimension by photo
It is converted into gray-scale map, with median filtering algorithm, this gray-scale map is filtered denoising, then with LoG operator to this gray-scale map
Carry out rim detection, the edge contour detected is used LSD line segment detection algorithm, obtain in the second pictures in gray-scale map
Straightway data set；Find out the pixel abscissa value of heel pointX 3, the pixel abscissa value of tiptoe pointX 4, front instep
The pixel ordinate value of bone salient pointY 3, the pixel ordinate value of sole pointY 4, in conjunction with foot calculated in step 3
Long, calculate front shank bump height according to formula III；Wherein,For front shank bump height, unit is mm.
Formula III
Step 5, footwear are selected to mate: the first sex of typing user, age information；When user opens online shopping mall's money shoes
During interface, it is judged that user's sex is the most consistent with shoes style；If inconsistent, such as man browses women's shoes or woman browses man
Footwear, the most do not carry out Intelligent Matching；If consistent, then obtain the sex of user, age, the above-mentioned foot type parameter number calculated
According to, and the brand of these shoes and style information；
Check that foot type supplemental characteristic is the most correct；If incorrect, the most do not carry out Intelligent Matching, and provide foot type parameter error and carry
Show；If correct, then read and select footwear correction parameter file, and calculate Chinese code corresponding to this foot type and and standard foot type between
Chinese code increment；
Read the size synopsis that selected brand is corresponding with style；If reading unsuccessfully, then calculate matching result by universal method, and
Provide Intelligent Matching prompting；If reading successfully, then according to size synopsis and user profile, calculate optimal footwear code further,
And provide Intelligent Matching prompting.
The present invention shoot foot type photo time, be not limited solely to use A4 paper, use B5 paper or other have standard-sized
Object of reference also can reach same purpose.
The present invention very convenient can extract foot type data quickly, and according to foot type data for different brands and
The shoes of type carry out accurately size coupling, and the shoe body of purchasing on the net that user can be greatly improved is tested, and reduce user network and purchase footwear
Time the return of goods rate that causes because size is improper.Additionally, the present invention has advantage simple to operate, easy to use, lower-cost,
Can be used widely on smart mobile phone, home computer.
Above-mentioned embodiment is not limitation of the present invention, and the present invention is also not limited to the example above, and this technology is led
Change that the technical staff in territory is made in the range of technical scheme, retrofit, add or replace, also belong to this
Bright protection domain.
Claims (2)
1. a foot type data capture method based on picture, it is characterised in that: said method comprising the steps of:
Step one, shooting picture: according to following requirement mobile phone two foot type pictures of shooting:
First pictures: prepare A4 blank sheet of paper, dark-background, dark socks；A4 blank sheet of paper is placed in dark-background, puts on dark color
Foot is also placed on A4 blank sheet of paper by socks, makes heel align with a minor face of A4 blank sheet of paper；Clap downwards from the upper center of instep
Take the photograph, make the edge of A4 blank sheet of paper try one's best concordant with its edges；
Second pictures: prepare light background, dark socks；Put on dark socks and foot is placed in light background；From foot
Medial surface shoots backward, and makes shorter perpendicular to the ground of shooting mobile phone；
Step 2, picture pretreatment: picture is carried out size adjusting, gradation conversion, splits and rotate pretreatment so that it is meet
Testing requirement, then extracts foot type outline data；
Step 3, obtain foot length, foot width: the first pictures is carried out above-mentioned picture pretreatment, obtains the foot type of the first pictures
Outline data；With first pixel in the picture upper left corner as zero, find out the pixel abscissa of tiptoe pointX1, heel
The pixel abscissa of pointW, calculate foot according to formula I long；Wherein,Representing that foot is long, unit is mm；
Formula I
Foot type outline data further according to the first pictures, it is judged that be left foot or right crus of diaphragm；If left foot, then the first sole of the foot toe closes
Node is up, the 5th metatarsophalangeal joints point is in lower section；If right crus of diaphragm, then Metatarsophalangeal joint point in lower section, the 5th sole of the foot toe closes
Node is up；Draw the pixel vertical coordinate of Metatarsophalangeal joint pointY1, the pixel vertical coordinate of the 5th metatarsophalangeal joints pointY2, according to
Formula II calculates foot width；WhereinRepresenting foot width, unit is mm；
Formula II
Step 4, calculating instep are high: the second pictures carries out above-mentioned picture pretreatment, obtains the foot type data of the second pictures；
Find out the pixel abscissa value of heel pointX3, the pixel abscissa value of tiptoe pointX4, the pixel ordinate value of front shank salient pointY3, the pixel ordinate value of sole pointY4, long in conjunction with foot calculated in step 3, before calculating according to formula III
Shank bump height；Wherein,For front shank bump height, unit is mm；
Formula III
Step 5, footwear are selected to mate: the first sex of typing user, age information；When user opens online shopping mall's money shoes
During interface, it is judged that user's sex is the most consistent with shoes style；If it is inconsistent, do not carry out Intelligent Matching；If it is consistent, then
Obtain the sex of user, age, the above-mentioned foot type supplemental characteristic calculated, and the brand of these shoes and style information；
Check that foot type supplemental characteristic is the most correct；If incorrect, the most do not carry out Intelligent Matching, and provide foot type parameter error and carry
Show；If correct, then read and select footwear correction parameter file, and calculate Chinese code corresponding to this foot type and and standard foot type between
Chinese code increment；
Read the size synopsis that selected brand is corresponding with style；If reading unsuccessfully, then calculate matching result by universal method, and
Provide Intelligent Matching prompting；If reading successfully, then according to size synopsis and user profile, calculate optimal footwear code further,
And provide Intelligent Matching prompting.
Foot type data capture method based on picture the most according to claim 1, it is characterised in that: described step 2 is schemed
The concrete operation method of sheet pretreatment is:
A, reading picture, adjust picture size to suitable dimension；
B, will adjust after picture be converted to gray-scale map, with LoG operator, gray-scale map is carried out rim detection；
C, utilization LSD line segment detection algorithm, by edge detection results, obtain the straightway data set of picture；
D, above-mentioned straightway data set is carried out Screening Treatment, obtain belonging to the straightway collection at A4 blank sheet of paper edge；
E, to belonging to the straightway collection at A4 blank sheet of paper edge, calculate the intersection point of any of which horizontal line section and vertical line segment, obtain
Four bunches of point sets, simulate four angle points of A4 blank sheet of paper；
F, four angle points according to A4 blank sheet of paper, be partitioned into A4 paper white area in the gray-scale map of step c, obtain new gray-scale map,
And new gray-scale map is rotated, it is ensured that tiptoe direction is all the time towards a left side；
G, with LoG operator, postrotational new gray-scale map is carried out rim detection, extract foot type outline data.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997605A (en) * | 2017-03-22 | 2017-08-01 | 浙江大学 | It is a kind of that the method that foot type video and sensing data obtain three-dimensional foot type is gathered by smart mobile phone |
| CN107183835A (en) * | 2017-07-24 | 2017-09-22 | 重庆小爱科技有限公司 | A kind of method of use mobile phone photograph scanning generation human foot model and data |
| CN107609933A (en) * | 2017-08-24 | 2018-01-19 | 深圳市云智数据服务有限公司 | A kind of foot-measuring method for customizing based on shops's conclusion of the business record, system |
| CN107704873A (en) * | 2017-09-27 | 2018-02-16 | 吴立俊 | A kind of footwear money adaption system and method based on foot type and fat and lean degree |
| CN108805138A (en) * | 2018-04-19 | 2018-11-13 | 北京金尺云数科技有限公司 | A kind of method that mobile phone photograph calculates foot's data |
| CN108960985A (en) * | 2018-06-26 | 2018-12-07 | 北京适久科技有限责任公司 | Body parameter generation method and online shopping item recommendation method based on image or video |
| CN109859228A (en) * | 2019-01-18 | 2019-06-07 | 深圳壹账通智能科技有限公司 | Recommend the method, apparatus and computer equipment of shoes money type based on image recognition |
| CN109871462A (en) * | 2019-03-18 | 2019-06-11 | 南京道阔互联网科技有限责任公司 | A method of matched data in foot's database is selected according to user foot data |
| CN109934664A (en) * | 2019-01-17 | 2019-06-25 | 深圳壹账通智能科技有限公司 | Intelligent recommendation method, apparatus, equipment and storage medium based on shoes transaction |
| CN110123330A (en) * | 2019-05-20 | 2019-08-16 | 浙江大学 | Foot type parameter measurement and pressure cloud atlas generation method based on plantar pressure data |
| CN111528579A (en) * | 2020-04-29 | 2020-08-14 | 成都信息工程大学 | Non-contact foot measuring method based on machine vision |
| CN112464747A (en) * | 2020-11-10 | 2021-03-09 | 广州富港万嘉智能科技有限公司 | Height detection method and device based on image acquisition equipment |
| CN113100753A (en) * | 2021-04-07 | 2021-07-13 | 深圳市知足数据科技有限公司 | Automatic three-dimensional measurement method based on height, weight and foot shape |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997605B (en) * | 2017-03-22 | 2019-11-19 | 浙江大学 | A method of foot type video is acquired by smart phone and sensing data obtains three-dimensional foot type |
| CN106997605A (en) * | 2017-03-22 | 2017-08-01 | 浙江大学 | It is a kind of that the method that foot type video and sensing data obtain three-dimensional foot type is gathered by smart mobile phone |
| CN107183835A (en) * | 2017-07-24 | 2017-09-22 | 重庆小爱科技有限公司 | A kind of method of use mobile phone photograph scanning generation human foot model and data |
| CN107609933A (en) * | 2017-08-24 | 2018-01-19 | 深圳市云智数据服务有限公司 | A kind of foot-measuring method for customizing based on shops's conclusion of the business record, system |
| CN107609933B (en) * | 2017-08-24 | 2020-06-23 | 深圳市云智数据服务有限公司 | Footage customization method and system based on store transaction records |
| CN107704873A (en) * | 2017-09-27 | 2018-02-16 | 吴立俊 | A kind of footwear money adaption system and method based on foot type and fat and lean degree |
| CN108805138A (en) * | 2018-04-19 | 2018-11-13 | 北京金尺云数科技有限公司 | A kind of method that mobile phone photograph calculates foot's data |
| CN108805138B (en) * | 2018-04-19 | 2022-04-22 | 北京金尺云数科技有限公司 | Method for calculating foot data by photographing through mobile phone |
| CN108960985A (en) * | 2018-06-26 | 2018-12-07 | 北京适久科技有限责任公司 | Body parameter generation method and online shopping item recommendation method based on image or video |
| CN109934664A (en) * | 2019-01-17 | 2019-06-25 | 深圳壹账通智能科技有限公司 | Intelligent recommendation method, apparatus, equipment and storage medium based on shoes transaction |
| CN109859228A (en) * | 2019-01-18 | 2019-06-07 | 深圳壹账通智能科技有限公司 | Recommend the method, apparatus and computer equipment of shoes money type based on image recognition |
| CN109871462A (en) * | 2019-03-18 | 2019-06-11 | 南京道阔互联网科技有限责任公司 | A method of matched data in foot's database is selected according to user foot data |
| CN110123330A (en) * | 2019-05-20 | 2019-08-16 | 浙江大学 | Foot type parameter measurement and pressure cloud atlas generation method based on plantar pressure data |
| CN111528579A (en) * | 2020-04-29 | 2020-08-14 | 成都信息工程大学 | Non-contact foot measuring method based on machine vision |
| CN112464747A (en) * | 2020-11-10 | 2021-03-09 | 广州富港万嘉智能科技有限公司 | Height detection method and device based on image acquisition equipment |
| CN113100753A (en) * | 2021-04-07 | 2021-07-13 | 深圳市知足数据科技有限公司 | Automatic three-dimensional measurement method based on height, weight and foot shape |
| CN113100753B (en) * | 2021-04-07 | 2024-03-29 | 深圳市知足数据科技有限公司 | Automatic three-dimensional measurement method based on height and weight feet |
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Application publication date: 20161116 |