CN101598520A - A kind of shooting auxiliary training system reaches based on framing target center method - Google Patents
A kind of shooting auxiliary training system reaches based on framing target center method Download PDFInfo
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- CN101598520A CN101598520A CNA2009100748632A CN200910074863A CN101598520A CN 101598520 A CN101598520 A CN 101598520A CN A2009100748632 A CNA2009100748632 A CN A2009100748632A CN 200910074863 A CN200910074863 A CN 200910074863A CN 101598520 A CN101598520 A CN 101598520A
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Abstract
The present invention relates to a kind of shooting auxiliary training system and, mainly contain computer, rifle, target, wireless video capture card, wireless trigger device receiving device, radio micro camera and wireless trigger device based on framing target center method; The characteristics of this method: 1) about the image of when camera center aiming shot object center, fetching, about be about camera center aiming point symmetry; 2) when the center of the armed aiming bundle of shooter, the center of image that camera is got overlaps with the center of target image; 3) by camera fetch image and as calculated the imgae processing software of machine handle the registration of target picture centre and picture centre position, judge the number of rings that this moment, the shooter aimed at this.This system does not have specific (special) requirements to target, need not ball firing, and equipment is simple and cost is low; But to the shooting course complete monitoring, can playback and analysis to training process, and can analyze athletic every technical parameter by the formed track of shooting course aiming point.
Description
One, technical field
The invention belongs to the sporting equipment technical field, relate generally to a kind of shooting auxiliary training system and reach based on framing target center method.
Two, background technology
At present, domestic and international gunnery training system, as Finland Noptel by laser beam emitting device rifle, target, photoelectric receiving target array 1 system, its major defect is: a), the equipment complexity, rotation error is bigger, though later product ST-2000 Sport System has made improvement, photoelectric receiving system changes reflective reception into, receiving unit is installed in rifle and carries part, form two-pipe system with laser transmitting system, reduced rotation error, plant weight but increased rifle, the heavy 85g of its photovoltaic element, impost 30-50g.B), rifle carries and is partly with several meters longer transmission cables, the heavy 40g/m of cable, impost is big, uses inconvenience.
And for example Russian SCATT system, its major defect is: A, circuit design fall behind, complex structure, and it is too much to adjust link, less stable, fault rate height.B, instrument adopt the native country device that establishes one's own system mostly, and interchangeability is relatively poor, maintenance difficult.C, rifle carry and are partly with 3 meters long multicore cables, and impost is big, use inconvenience.D, secondary computer use the ISA expansion slot of having eliminated, and the system applies face is narrower.
And for example German SAM-Trainer system, but its rifle carries the comparison heaviness that operative sensor shows, and have several meters multicore cables, rifle carries impost lays particular stress on.
Existing " rifle god 2000 " gunnery training system is made up of infrared emission target, wireless target trajectory photoelectric receiving system, infrared radio data sink, microprocessor and multi-way intelligence charger etc.This system constitutes complicated, the cost height.
Below be that relevant patented technology has:
(1) application number: ZL01113599.9, " a kind of shooting training guidance system " has laser sight, target surface, video camera, computer, image pick-up card and gun etc.
(2) application number: ZL200410014099.7, " supersonic image fire training system ", this system comprises: supersonic image big screen, signal acquisition process device, positioning calculation industrial computer, communicating circuit, image control and broadcast computer, CCD camera, video capture card and projector; Its supersonic image big screen has framework, on the framework two sides high purity rubber is installed, form an acoustic cavity in the middle of the framework, two rows at cavity respectively are equipped with acoustic sensor array, in acoustic cavity temperature compensation sensor is installed, acoustic sensor links to each other with the signal acquisition process device with temperature compensation sensor; The signal acquisition process device comprises signal amplification and filter circuit, region decision circuit, counting circuit, single-chip microprocessor MCU, temperature acquisition compensating circuit, positioning calculation industrial computer, supply convertor.
(3) application number: ZL01252144.2, " gunnery training analyzer ", this analyzer is by target sheet, connected to form by the special target of Infrared Projector, infrared signal recipient, CDD sensor, shock sensor, image pick-up card, computer etc.
(4) application number: ZL01136456.4, a kind of image-type shooting training automatic score method and device, this device comprises video acquisition device, Audio and Video Processing Card and microcomputer.
The above existing gunnery system all is to adopt infrared detection method, and the part system also needs target is carried out special transformation, and all there is the too high problem of cost undoubtedly in these.Application number: ZL01136456.4 wherein, a kind of image-type shooting training automatic score method and device, this device comprises video acquisition device, Audio and Video Processing Card and microcomputer.Though without said apparatus, only use video acquisition device, but still need live ammunition, increased cost, be not suitable as the secondary fire training system.
Three, summary of the invention
The objective of the invention is to overcome the existing in prior technology deficiency, provide a kind of equipment simple, quantity is few, the shooting auxiliary training system that cost is low, and the achievement of shooter's target trajectory and gunnery training process and training quota can be shown intuitively based on framing target center method.
The object of the present invention is achieved like this:
A kind of shooting auxiliary training system comprises rifle 2, target 3, it is characterized in that also comprising computer 1, wireless video capture card 4, wireless trigger device receiving device 5, radio micro camera 6 and wireless trigger device 7; Described radio micro camera is loaded on the rifle, and the radio micro camera points to consistent with the accurate heart of rifle; Described wireless video capture card and wireless trigger device receiving device are loaded in the described computer; Wherein: institute's pickup image signal that the radio micro camera sends is received by the wireless video capture card, and wireless trigger device signal is received by wireless trigger device receiving device.
Above-described shooting auxiliary training system based on framing target center method, it is characterized in that:
(1), about the image of fetching when camera center aiming shot object center, is about camera center aiming point symmetry;
(2), when the center of the armed aiming bundle of shooter, the center of image that camera is got overlaps with the center of target image;
(3), by camera fetch image and as calculated the imgae processing software of machine handle the registration of target picture centre and picture centre position, judge the number of rings that this moment, the shooter aimed at this.
The containing following concrete steps based on framing target center method and be of described shooting auxiliary training system:
At first, taken the photograph by the radio micro camera and to obtain a target image in the image, the target image that obtains is used for two aspects: (1), whether contain the target image for judging in the image that shooting course is fetched each time; (2), for calculating the shooting number of rings in the shooting course, from target image acquisition target radius information;
Secondly, each two field picture in shooting aiming process is handled calculating by imgae processing software, calculate current target center, if the target center is P ', the coordinate points at target center is (x ', y '), and the position of establishing radio micro picture centre that camera is taken the photograph is P;
Then, obtain target center P ' and the distance of being taken the photograph picture centre position P by the radio micro camera, establish its distance and be L; And with the shooting number of rings in the shooting course, the radius etc. that obtains target from the target image divides 10 sections, tries to achieve the length (unit is a pixel) of each ring, and the length of establishing each ring is t; When Forward Firing or the aiming number of rings be H, then can get by following computing formula:
H＝10.9-L/t。
The inventive method compared with prior art, its highlightedly substantive distinguishing features and significant effect be:
(1), when secondary fire is trained except that using rifle and common target, only need radio micro camera and its receiving device, micro radio trigger, receiving device and computer, native system equipment is simple, quantity is few, cost is low.
(2), native system is owing to be equipped with the micro radio camera and adopt based on framing target center method on rifle, target is not had specific (special) requirements, need not ball firing.
(3) but, to the shooting course complete monitoring, can playback and analysis to training process, and can analyze athletic every technical parameter by the formed track of shooting course aiming point.
Four, description of drawings
Fig. 1 is that shooting auxiliary training system of the present invention is formed schematic diagram.
Fig. 2 is the flow chart of image processing process.
Fig. 3 is the flow chart of data handling procedure.
Fig. 4 is the schematic diagram of desirable (10.9 ring) image and target center position.
Fig. 5 is the hit schematic diagram of current target center in subimage and the aiming process of aiming process.
Fig. 6 is the schematic diagram of the formed track of shooting course aiming point.
Five, the specific embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
As shown in Figure 1, shooting auxiliary training system of the present invention is formed schematic diagram.
Shooting auxiliary training system comprises computer 1, rifle 2, target 3, wireless video capture card 4, wireless trigger device receiving device 5 and radio micro camera 6 and wireless trigger device (trigger) 7; The radio micro camera is loaded on the rifle, and the radio micro camera points to consistent with the accurate heart of rifle; Wireless video capture card and wireless trigger device receiving device are loaded in the described computer; Wherein: institute's pickup image signal that the radio micro camera sends is received by the wireless video capture card, and wireless trigger device signal (percussion signal) is received by wireless trigger device receiving device.
Described computer 1 also comprises image processing software and shooting auxiliary training system management software, and as shown in Figure 2, the flow chart of its image processing process is as follows:
(1), at first fetch image, and be transferred to computer by camera;
(2), image is carried out binaryzation, target contour edge in the refined image;
(3), judgement and template relatively judge whether to be target, are to calculate target figure information; , then do not abandon this image.
As shown in Figure 3, the flow chart of data handling procedure is as follows:
(1), calculates when front target figure information; Promptly calculate the target center coordinate, calculate the target radius and calculate each ring length;
(2), target center coordinate and centre of figure coordinate (when promptly aiming at 10.9 rings) are compared calculating;
(3), try to achieve current aimed fire number of rings;
(4), the every index in the calculating sportsman shooting course;
(5), current aimed fire number of rings is presented on the interface.
The present invention is based on framing target center method:
(1) about the image of when camera center aiming shot object center, fetching, is about camera center aiming point symmetry;
(2) when the center of the armed aiming bundle of shooter, during promptly desirable 10.9 rings, the center of image that camera is got overlaps with the center of target image;
Therefore, when fetching image by camera, when the target picture centre of handling through imgae processing software overlapped with the picture centre position, what judge shooter's aiming this moment thus be desirable 10.9 to encircle (10.9 encircle be the highest number of rings in the shooting sports), as shown in Figure 4.
The present invention is based on framing target center concrete grammar is:
At first, taken the photograph by the radio micro camera and to obtain a target image in the image, the target image that obtains is used for two aspects:
(1), for judging in the image of in shooting course, fetching each time whether contain the target image;
(2), for calculating the shooting number of rings in the shooting course, from target image acquisition target radius information (unit is a pixel).
Secondly, each two field picture in shooting aiming process is handled calculating by image processing software, calculates current target center, as shown in Figure 5.If the target center is P ', the coordinate points at target center is (x ', y '), and the position of establishing picture centre that the radio micro camera is taken the photograph is (x, y) (P and 10.9 encircles corresponding) for the P coordinate points;
Then, obtain target center P ' and the distance of being taken the photograph picture centre position P by the radio micro camera, establish its distance and be L,
And with the shooting number of rings in the shooting course, the radius etc. that obtains target from the target image divides 10 sections, tries to achieve the length (unit is a pixel) of each ring, and the length of establishing each ring is t;
When Forward Firing or the aiming number of rings be H, then can get by following computing formula:
H＝10.9-L/t。
The use of shooting auxiliary training system of the present invention:
When trainer's hand present arms 2 with aiming during target 3, take the realtime graphic of aiming process by radio micro camera 6, wireless video capture card 4 is transferred to computer 1 with the image of gathering in real time, the image that computer will be gathered back carries out real-time Treatment Analysis, and the aiming point on the target in the aiming process (being equivalent to number of rings) is reflected on the secondary fire training system display interface simultaneously visually.Pull wireless trigger device (trigger) 7 the trainer and send signal, wireless trigger device receiving device 5 acknowledge(ment) signals are also incited somebody to action this moment, and signal sends computer to, the Computer Processing current demand signal, and the aiming point (being equivalent to number of rings) that current graphics process is obtained is reflected on the secondary fire training system display interface in real time as the number of rings of this percussion.
For example, adopt Olympic Games standard project 10m air pistol project and respective standard target figure to test.Far train test at distance target Figure 10 M.The minimum visible size of the target sheet of 10m air pistol is 170mm * 170mm, and the entire target ring diameter is 155.5mm.
It is 800*600 (pixel) image that the gunnery training camera is fetched picture specification.
Before training, at first obtain a target image, image is carried out binary conversion treatment, the target profile through the row thinning processing, is extracted the target image, be stored as template, and as the reference that whether contains target in the every two field picture in the shooting course after judging.Calculating the target radius is 200 (pixels), obtains behind 10 sections of the branches such as radius, and the length of each ring is t, and promptly every ring pixel is 20 (pixels/ring), is the origin of coordinates (0,0) with the image upper left corner, to the lower right corner for increasing progressively direction.Then point coordinates (x=400, y=300) is the target center in the image, i.e. 10.9 rings.
The gunnery training process
1. when aiming at the bull's-eye when shooting, fetch current sight picture, extract the target image,, assert in this width of cloth image and contain target through comparison, calculate target center position P ' and be (x '=448, y '=290), when Forward Firing ring sight number
Ring, and this achievement is presented on the simulation target on the shooting auxiliary training system interface.
2. when fetching image, assert in this width of cloth image not contain target information through after extracting the target image comparison.Then judge and work as Forward Firing aiming process for missing the target.
3. when aiming at the bull's-eye shooting, fetch current sight picture, extract the target image, through comparison, assert in this width of cloth image and contain target, calculating target center position P ' is (496,340), when Forward Firing ring sight number is:
Ring, and this achievement is presented on the simulation target on the shooting auxiliary training system interface.
Above-mentioned three processes are 3 discontinuous particular cases having chosen in the shooting aiming process.The aiming process is continuous in real process, and therefore in the process of aiming, the aiming point that shows on the simulation target on the shooting auxiliary training system interface is a continuous random curve, as shown in Figure 6.
Claims (6)
1, a kind of shooting auxiliary training system comprises rifle (2), target (3); It is characterized in that also comprising computer (1), wireless video capture card (4), wireless trigger device receiving device (5), radio micro camera (6) and wireless trigger device (7); Described radio micro camera is loaded on the rifle, and the radio micro camera points to consistent with the accurate heart of rifle; Described wireless video capture card and wireless trigger device receiving device are loaded in the described computer; Wherein: institute's pickup image signal that the radio micro camera sends is received by the wireless video capture card, and wireless trigger device signal is received by wireless trigger device receiving device.
2, the described shooting auxiliary training system of a kind of claim 1 based on framing target center method, it is characterized in that:
(1), about the image of fetching when camera center aiming shot object center, is about camera center aiming point symmetry;
(2), when the center of the armed aiming bundle of shooter, the center of image that camera is got overlaps with the center of target image;
(3), by camera fetch image and as calculated the imgae processing software of machine handle the registration of target picture centre and picture centre position, judge the number of rings that this moment, the shooter aimed at this.
3, shooting auxiliary training system according to claim 2 based on framing target center method, it is characterized in that: this method contains following concrete steps and is:
At first, taken the photograph by the radio micro camera and to obtain a target image in the image, the target image that obtains is used for two aspects: (1), whether contain the target image for judging in the image that shooting course is fetched each time; (2), for calculating the shooting number of rings in the shooting course, from target image acquisition target radius information;
Secondly, each two field picture in shooting aiming process is handled calculating by imgae processing software, calculate current target center, if the target center is P ', the coordinate points at target center is (x ', y '), and the position of establishing radio micro picture centre that camera is taken the photograph is P;
Then, obtain target center P ' and the distance of being taken the photograph picture centre position P by the radio micro camera, establish its distance and be L; And with the shooting number of rings in the shooting course, the radius etc. that obtains target from the target image divides 10 sections, tries to achieve the length (unit is a pixel) of each ring, and the length of establishing each ring is t; When Forward Firing or the aiming number of rings be H, then can get by following computing formula:
H＝10.9-L/t。
4, shooting auxiliary training system according to claim 2 based on framing target center method, it is characterized in that: also comprise image processing software and shooting auxiliary training system management software.
5, shooting auxiliary training system according to claim 4 based on framing target center method, it is characterized in that: the flow process of described image processing process is:
(1), at first fetch image, and be transferred to computer by camera;
(2), image is carried out binaryzation, target contour edge in the refined image;
(3), judgement and template relatively judge whether to be target, are to calculate target figure information; , then do not abandon this image.
6, shooting auxiliary training system according to claim 4 based on framing target center method, it is characterized in that: the flow process of described data handling procedure is:
(1), calculates when front target figure information; Promptly calculate the target center coordinate, calculate the target radius and calculate each ring length;
(2), target center coordinate and centre of figure coordinate are compared calculating;
(3), try to achieve current aimed fire number of rings;
(4), the every index in the calculating sportsman shooting course;
(5), current aimed fire number of rings is presented on the interface.
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Application publication date: 20091209 |