CN108671523A - A kind of boundary ball determination method and system for volleyball match - Google Patents
A kind of boundary ball determination method and system for volleyball match Download PDFInfo
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- CN108671523A CN108671523A CN201810430054.XA CN201810430054A CN108671523A CN 108671523 A CN108671523 A CN 108671523A CN 201810430054 A CN201810430054 A CN 201810430054A CN 108671523 A CN108671523 A CN 108671523A
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
- A63B2071/0647—Visualisation of executed movements
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/50—Force related parameters
- A63B2220/56—Pressure
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2243/00—Specific ball sports not provided for in A63B2102/00 - A63B2102/38
- A63B2243/0095—Volleyball
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The present invention provides a kind of boundary ball determination methods for volleyball match, including：Pressure state picture capturing method, pressure state figure dividing method, pressure state figure characterization method, pressure state figure determination method, LED control method；The present invention solves in regular volleyball match, and the judgement of boundary ball is difficult, and delay is larger, judges this technical barrier not in time；The sideline judge that may replace two assistance referee's decision boundaries balls in formal competition, saves human cost；Boundary ball determination method provided by the invention using pressure state figure and pre-training model, which can be distinguished, kicks off to press boundary line and the tactile line situation of athletes ' body, prevents erroneous judgement well.
Description
Technical field
The present invention relates to a kind of sport intelligence judgment systems, and in particular to a kind of boundary ball in volleyball match is sentenced
Determine method.
Background technology
In current each rank volleyball match, attacker buckles into ball in away ground in (including boundary line), it will score.
In actual match, it is anchored to that the ball near boundary line is often difficult to be judged, sportsman and spectators significantly observe.Regular
Match, often will appear both sides and is disputed on, and whether referee will be usually boundary by the playback ability accurate judgement of video recording
Thread ball increases judgement difficulty and time delay.
Invention content
Present invention aims at provide a kind of boundary ball determination method for volleyball match.
Another object of the present invention is to provide a kind of one kind based on above-mentioned boundary ball determination method and is used for volleyball match
Boundary ball decision-making system, solve in current volleyball match that the judgement of boundary ball is difficult, judgement has delay, influence spectators' perception etc.
Problem.
To achieve the above object, the present invention provides a kind of boundary ball determination method for volleyball match, include mainly：
Boundary line pressure state picture capturing method, pressure state figure dividing method, pressure state figure characterization method, pressure
State diagram determination method, LED control method；
The pressure state picture capturing method obtains net by the pressure sensitive band being layed on volleyball court surrounding boundary line
Boundary line pressure state figure, the pressure state figure are binaryzation black white image, and black indicates that there are external pressure, whites
It indicates that external pressure is not present；
The pressure state figure dividing method is split by state diagram partitioning algorithm to receiving pressure state figure,
The continuous administrative division map of pressure position is obtained, that is, is independent pressure state subgraph；
The state diagram partitioning algorithm is pressure position clustering algorithm, and continuously connected pressure position is clustered, is not attached to
Cluster be split, obtain multiple independent pressure state subgraphs and its center point coordinate；
The pressure state figure characterization method, including pressure state subgraph method for normalizing and feature extracting method；
Wherein pressure state subgraph method for normalizing is to be filled, obtained using the white of expression no pressure to pressure state subgraph
The long and wide normalization pressure state subgraph of regulation, length and width are denoted as w and h respectively；The feature extracting method is to calculate pressure shape
State subgraph area s, and will normalize pressure state subgraph by rows is the row vector v of wh1×(w·h), obtain for judging
Feature vector：
V={ s, v1×(w·h)}
In formula, V is the row feature vector of wh+1 dimensions；
The pressure state figure determination method, the pressure state figure decision model completed using advance training
(M1×(w·h+1), b) and prediction judgement is carried out to the feature vector of pressure state subgraph extraction, specially：
P=S (M1×(w·h+1)·VT+b)
In formula, S () is sigmoid function S (x)=(1+e-x)-1∈ [0,1], result of calculation p are to be predicted as vollyball circle
Limit the probability value of ball；When it is more than predetermined threshold value pthWhen, it is determined as vollyball boundary ball；
The pressure state figure decision model that the advance training is completed, is trained to obtain using SVM；
The LED control method, according to pressure state figure determination method as a result, if it is determined that being vollyball boundary ball, then basis
Its corresponding pressure state subgraph center point coordinate lights LED warning lights, and in Judge Seating screen display.
Further, the prediction threshold value pth=0.6.
The present invention also provides based on a kind of boundary ball decision-making system for volleyball match of the above method, feature exists
In：
The system is by pressure sensitive band, LED light strip, Judge Seating display module, processor module and control module group
At；
The pressure sensitive band is completed to obtain pressure signal, the input module as system；It is surrounded on left court, right ball
On field border line；
The LED light strip completes the displaying of boundary chou fruit court, as system output module；It is surrounded on outside pressure sensitive band
Side, LED light can be lighted independently；
The Judge Seating display module completes the displaying of boundary chou fruit Judge Seating, and system output mould is listed as with LED light strip
Block；
The processor module, with pressure sensitive band connection, the pressure signal for receiving the acquisition of pressure sensitive band is gone forward side by side
Row operation and judgement, output boundary ball is as a result, as system operations module；
The control module is connect with LED light strip, processor module and Judge Seating display module；Receive processor module
The boundary ball of output to LED light strip, processor module as a result, carry out control output respectively according to result.
Preferably, the pressure sensitive band is the pressure sensor that gathers, and when by ambient pressure, can return to binaryzation
Pressure state distribution map.
Preferably, the processor module is respectively adopted pressure state figure dividing method, pressure state figure characterization method,
The segmentation of pressure state figure, normalized, feature extraction and model prediction are sentenced in pressure state figure determination method, completion
It is fixed, the judgement result of boundary ball whether is occurred.
Compared with prior art, the present invention provides a kind of boundary ball determination method and system for volleyball match, solutions
It has determined in regular volleyball match, the judgement of boundary ball is difficult, and delay is larger, judges this technical barrier not in time；The system simultaneously
The sideline judge that may replace two assistance referee's decision boundaries balls in formal competition, saves human cost；Use provided by the invention
The boundary ball determination method of pressure state figure and pre-training model, which can be distinguished, kicks off to press boundary line and the tactile line feelings of athletes ' body
Condition prevents erroneous judgement well.
Description of the drawings
Fig. 1, boundary ball decision-making system structure chart.
Fig. 2, pressure state subgraph filling process, (a) pressure state subgraph (b) normalize pressure state subgraph.
Specific implementation mode
In order to enable the purpose of the present invention, technical solution and advantage are more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain this hair
It is bright, it is not intended to limit the present invention.In addition, calculating feature involved in each embodiment is invented in disclosed below doing
Only conflict is not constituted between each other can be combined with each other.
As shown in Figure 1, a kind of boundary ball decision-making system for volleyball match by left court (1) and right court (2) outside
The pressure sensitive band (4), LED light strip (3) and the Judge Seating display module (7) that enclose, processor module (5), control module (6) group
At；
Pressure sensitive band (4) is the pressure sensor that gathers, and is layed in volleyball court surrounding boundary line；When by ambient pressure,
The pressure state distribution map of binaryzation can be returned；
Processor module (5) is connect with pressure sensitive band (4), obtains pressure state distribution map, uses state in the eyes first
Figure dividing method completes segmentation to pressure state distribution map, obtains the continuous pressure state subgraph of pressure position and wherein
Heart coordinate, the partitioning algorithm used here is pressure position clustering algorithm；Pressure state figure characterization method, completion pair are used again
The normalized of pressure state subgraph obtains the normalization pressure state subgraph of the fixed dimension after polishing (w, h), such as Fig. 2
It is shown, and feature extraction is carried out to normalization pressure state subgraph, obtain the feature vector for judgement：
V={ s, v1×(w·h)}
In formula, s is pressure state subgraph area, v1×(w·h)To normalize the row vector arrangement of pressure state subgraph；V
Forw·h+1Tie up row vector；
Finally according to pressure state figure determination method, the pressure state figure decision model completed using advance training
(M1×(w·h+1), b) and prediction judgement is carried out to the feature vector of pressure state subgraph extraction, specially：
P=S (M1×(w·h+1)·VT+b)
In formula, S () is sigmoid function S (x)=(1+e-x)-1∈ [0,1], result of calculation p are to be predicted as vollyball circle
Limit the probability value of ball；When it is more than predetermined threshold value pthWhen=0.6, it is determined as vollyball boundary ball；
Processor module (5) will judge that result and corresponding centre coordinate are sent into control module (6), if it is determined that result is
Boundary ball occurs, then control module (6) lights corresponding LED in LED light bar (3) according to center point coordinate, is used for sportsman and sight
Crowd's observation, and the LED light for corresponding on Judge Seating display module (7) and boundary ball half-court occurring is lighted, it is observed convenient for Judge Seating；
LED light strip (3) and Judge Seating display module (7) are used for display and prompting to boundary ball occurs；
It is two classification SVM models, training about the pressure state figure decision model that above training is completed in advance
It concentrates, positive example is that the pressure state figure of boundary ball occurs, label 1, and it is that sportsman's foot, hand, body etc. trigger feeling of stress to bear example
It should be with the pressure state figure of (4), label 0.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all within the spirits and principles of the present invention made by all any modification, equivalent and improvement etc., should all include
Within protection scope of the present invention.
Claims (5)
1. a kind of boundary ball determination method for volleyball match, which is characterized in that including：Pressure state picture capturing method, pressure
Power state diagram dividing method, pressure state figure characterization method, pressure state figure determination method, LED control method；
The pressure state picture capturing method obtains net by the pressure sensitive band (4) being layed on volleyball court surrounding boundary line
Boundary line pressure state figure, the pressure state figure are binaryzation black white image, and black indicates that there are external pressure, whites
It indicates that external pressure is not present；
The pressure state figure dividing method is split to receiving pressure state figure, is obtained by state diagram partitioning algorithm
The continuous pressure state subgraph of pressure position；
The state diagram partitioning algorithm is pressure position clustering algorithm, and continuously connected pressure position is clustered, disjunct poly-
Class is split, and obtains multiple independent pressure state subgraphs and its center point coordinate；
The pressure state figure characterization method, including pressure state subgraph method for normalizing and feature extracting method；
The pressure state subgraph method for normalizing is to be filled using the white of expression no pressure to pressure state subgraph,
It obtains regulation length and wide normalization pressure state subgraph, length and width is denoted as w and h respectively；The feature extracting method is to calculate pressure
Power state subgroup area of pictural surface s, and will normalize pressure state subgraph by rows is the row vector v of wh1×(w·h), it is used for
The feature vector of judgement：
V={ s, v1×(w·h)}
The pressure state figure determination method, the pressure state figure decision model (M completed using advance training1×(w·h+1), b) and right
The feature vector of pressure state subgraph extraction carries out prediction judgement, specially：
P=S (M1×(w·h+1)·VT+b)
In formula, S () is sigmoid function S (x)=(1+e-x)-1∈ [0,1], result of calculation p are to be predicted as vollyball boundary ball
Probability value；When it is more than predetermined threshold value pthWhen, it is determined as vollyball boundary ball；
The LED control method, according to pressure state figure determination method as a result, if it is determined that be vollyball boundary ball, then it is right according to its
The pressure state subgraph center point coordinate answered lights LED warning lights, and in Judge Seating screen display.
2. a kind of boundary ball determination method for volleyball match as described in claim 1, which is characterized in that the prediction
Threshold value pth=0.6.
3. a kind of boundary ball decision-making system for volleyball match, which is characterized in that the system is by pressure sensitive band (4), LED
Light bar (3), Judge Seating display module (7), processor module (5) and control module (6) composition；
The pressure sensitive band (4) completes to obtain pressure signal, the input module as system；It is surrounded on left court (1), it is right
On court (2) boundary line；
The LED light strip (3) completes the displaying of boundary chou fruit court, as system output module；It is surrounded on pressure sensitive band (4)
Outside, LED light can be lighted independently；
The Judge Seating display module (7) completes the displaying of boundary chou fruit Judge Seating, and same LED light strip (3) is listed as system output
Module；
The processor module (5), connect with pressure sensitive band (4), the pressure letter for receiving pressure sensitive band (4) acquisition
Number, and operation and judgement are carried out, output boundary ball is as a result, as system operations module；
The control module (6) connect with LED light strip (3), processor module (5) and Judge Seating display module (7)；Receiving area
Reason device module (5) export boundary ball as a result, according to result respectively LED light strip (3), processor module (5) control it is defeated
Go out.
4. a kind of boundary ball decision-making system for volleyball match as claimed in claim 3, it is characterised in that：The feeling of stress
It should be the pressure sensor that gathers with (4), when by ambient pressure, the pressure state distribution map of binaryzation can be returned.
5. a kind of boundary ball decision-making system for volleyball match as claimed in claim 3, it is characterised in that：The processor
Pressure state figure dividing method is respectively adopted in module (5), and pressure state figure characterization method, pressure state figure determination method are complete
Whether segmentation, normalized, feature extraction and the model prediction judgement of paired pressure state diagram, occurred boundary ball
Judge result.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810430054.XA CN108671523B (en) | 2018-05-08 | 2018-05-08 | Boundary ball judgment method for volleyball match |
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|---|---|---|---|
| CN201810430054.XA CN108671523B (en) | 2018-05-08 | 2018-05-08 | Boundary ball judgment method for volleyball match |
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| CN108671523A true CN108671523A (en) | 2018-10-19 |
| CN108671523B CN108671523B (en) | 2020-05-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111840967A (en) * | 2020-07-31 | 2020-10-30 | 西安交通大学 | Line ball detection method based on reversible pressure-sensitive color-changing adhesive |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114337A (en) * | 2011-03-11 | 2011-07-06 | 深圳市桑达实业股份有限公司 | Device and method for judging and displaying fall point of badminton/tennis |
| CN202822688U (en) * | 2012-11-02 | 2013-03-27 | 王剑宇 | Boundary monitoring and controlling system for basketball game |
| CN202961802U (en) * | 2012-11-02 | 2013-06-05 | 长安大学 | Device for judging whether badminton goes out of boundary of fuzzy area of badminton court |
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2018
- 2018-05-08 CN CN201810430054.XA patent/CN108671523B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114337A (en) * | 2011-03-11 | 2011-07-06 | 深圳市桑达实业股份有限公司 | Device and method for judging and displaying fall point of badminton/tennis |
| CN202822688U (en) * | 2012-11-02 | 2013-03-27 | 王剑宇 | Boundary monitoring and controlling system for basketball game |
| CN202961802U (en) * | 2012-11-02 | 2013-06-05 | 长安大学 | Device for judging whether badminton goes out of boundary of fuzzy area of badminton court |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111840967A (en) * | 2020-07-31 | 2020-10-30 | 西安交通大学 | Line ball detection method based on reversible pressure-sensitive color-changing adhesive |
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| CN108671523B (en) | 2020-05-05 |
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