WO2014069817A1

WO2014069817A1 - Method for sensing cutting line of cartridge package

Info

Publication number: WO2014069817A1
Application number: PCT/KR2013/009207
Authority: WO
Inventors: 김준호
Original assignee: (주)제이브이엠
Priority date: 2012-11-01
Filing date: 2013-10-15
Publication date: 2014-05-08
Also published as: KR20140055808A; KR101985546B1

Abstract

The present invention relates to a cartridge-type drug dispensing box. Specifically, a cartridge-type drug dispensing device according to the present invention comprises: a storage portion for storing a cartridge package; a transfer portion comprising at least one roller for transferring the stored cartridge package; a scan portion for photographing the transferred cartridge package; a sensing portion for sensing a cutting line from the continuous images of the cartridge package photographed by the scan portion; a cutting portion for cutting any one cutting line contained in the transferred cartridge package using the position information of the sensed cutting line; and a discharge hole through which the cut cartridge is discharged outside. According to the present invention, it is possible to store a cartridge-type drug, as a partial element of the drug automatic dispensing device, and then to dispense the same, and the image of a dispensed cartridge package can be photographed without photo noise.

Description

How to detect the medicine package perforation

The present invention relates to a drug package tear line detection method, and more particularly, to a method of detecting a tear line to cut a medicine package in a box for dispensing a drug type drug among the devices used as part of the automatic drug dispensing device of the present invention. It is about.

In general, a single dose of a medicament according to a patient's prescription may include various types and types of medicaments, and a single dose of the medicament is dispensed from the drug delivery box and delivered to the patient.

The various medicines in one basket are dispensed from the box containing each medicine according to the patient's prescription and collected in one basket, the basket where the medicines are collected is delivered to the patient, and the patient collects the medicines in the basket. Will be taken.

Meanwhile, in order to collect various medicines in one basket, conventionally, a medicine specialist such as a pharmacist needed to manually select and contain medicines according to a patient's prescription. It was necessary. This is difficult to guarantee the correctness of medication and always implies the possibility of causing a weakening accident. In addition, as well as the possibility of weakening accidents, the collection process itself is complicated, so it takes a long time to collect the drug in accordance with the prescription of the patient, causing a problem that the work efficiency is reduced. For this reason, there is a need for researches on methods and techniques to improve the accuracy and efficiency in collecting medicines once per patient's prescription to provide convenience to users such as pharmacists and to prevent weakening accidents. Do.

On the other hand, in order to automatically dispense drug-type drugs, a technique for recognizing the cutting line of the medicine package is required in order to separate the medicines connected to each other. Conventionally, an ultrasonic sensor or the like is used in addition to a camera to detect a cutting line of the medicine package. However, in this case, due to the characteristics of the drug delivery box that can not be limited by the limited space, there was a lot of difficulties in including the detection technology of the perforated line.

The present invention provides a method for detecting the cutting line of the medicine package as a premise for cutting the medicine package individually.

In another aspect, the present invention provides a method for detecting a perforation line to minimize the system consumption of the computing device required for image processing of the medicine package.

In another aspect, the present invention provides a method for detecting a perforation line to minimize the number of components for detecting the perforation line of the medicine package.

According to the present invention, there is provided a method for detecting a medicine package cut line, an image acquiring step of acquiring an image including an intersection point of a thermal welding part formed in a lateral direction and a thermal welding part formed in a longitudinal direction of the medicine package; An image processing step of processing the captured image into an edge image; And a cut line detection step of detecting a cut line from the image-processed edge image.

The method may further include repeating the image capturing step and the cutting line detecting step by transferring the medicine package when the cutting line is not detected at the cutting line detecting step.

The image acquiring step may include: an image acquiring first step of capturing an image of a medicine package; And a second step of acquiring an image including an intersection of a transverse thermal fusion portion and a longitudinal thermal fusion portion of the medicine package of the photographed image.

In addition, the second step of acquiring the image may further include determining a location of the intersection of the lateral heat fusion zone and the longitudinal heat fusion zone by detecting an internal intersection of the lateral heat-sealed zone and the longitudinal heat-sealed zone. .

On the other hand, the image acquisition step may include the step of photographing only the image of the intersection of the lateral heat-sealed portion and the longitudinal heat-sealed portion of the medicine package.

The image processing may include: an image processing first step of converting the obtained image into a gray scale; An image processing second step of binarizing the image converted to the gray scale; And an image processing third step of converting the binarized image into an edge image in which only an edge is displayed.

Furthermore, the method may further include removing noise of the image before the first step of the image processing.

Furthermore, the noise removal may be performed by a median filter.

In the detecting of the perforated line, a series of pixels terminating the edge image may be determined as the perforated line using an outline tracking technique.

Furthermore, the perforation detection step may include: a perforation detection first step of detecting a pixel having black information from an upper portion of the edge image; A perforated line detection step of determining whether the pixel has black information while turning clockwise from the right pixel of the pixel having the detected black information; A third perforated line detecting step of repeating the second perforated line detecting step based on the determination target pixel when the pixel to be determined has black information; And a perforation line detection step of determining a series of target pixels as a perforation line when the reference pixel moves in the longitudinal direction from the top to the bottom of the edge image.

In the detecting of the perforated line, a part of the image recognized as a straight line pattern may be determined as the perforated line by a pattern recognition method.

According to the present invention, it is possible to easily detect the cutting line of the medicine package as a premise for individually cutting the medicine package.

At the same time, according to the present invention, it is possible to efficiently and quickly detect the perforation line by minimizing the resources of the computing system consumed for the continuous image processing of the continuous image by minimizing the photographing area or the acquisition area of the image used for detecting the perforation line of the medicine package.

In addition, according to the present invention, by using only the camera module to detect the cutting line of the medicine package, and does not use any other sensor, there is an advantageous effect of miniaturizing and economically necessary components for detecting the cutting line of the medicine package.

1 is a perspective view showing a state of a medicine-type drug delivery box according to an embodiment of the present invention.

Figure 2 is a bottom perspective view showing the state of the drug delivery type drug delivery box according to an embodiment.

Figure 3 is an exploded perspective view of a partially cut medicine drug delivery box according to an embodiment.

Figure 4 is a cross-sectional view showing the state of the drug delivery type drug delivery box according to an embodiment.

5 is a cutaway perspective view of a portion of the drug delivery type medicine dispensing box according to an embodiment.

Figure 6 is an exploded perspective view of the drug delivery box drug delivery box according to an embodiment.

Figure 7 is another exploded perspective view of the medicine-type drug delivery box according to an embodiment.

8 is a bottom perspective view illustrating a light blocking unit according to an embodiment.

9 and 10 are schematic diagrams illustrating an operation of a scan unit, according to an exemplary embodiment.

11 is a block diagram illustrating components related to cut line detection of a medicine package, according to an exemplary embodiment.

12 is a schematic view showing a schematic view of a medicine package.

13 is a flowchart illustrating a method of detecting a tear line, according to an exemplary embodiment.

14 is a flowchart illustrating an image processing process according to an exemplary embodiment.

15 is a flow chart illustrating a perforation line detection process according to one embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Unless otherwise defined or mentioned, terms indicating directions used in the present description are based on the states shown in the drawings. In addition, the same reference numerals throughout the embodiments indicate the same member. On the other hand, each of the components shown in the drawings may be exaggerated in thickness or dimensions for the convenience of description, and does not mean that actually should be configured by the ratio between the dimensions or configurations.

Drug delivery box according to the present invention is a device for dispensing the drug is stored therein in the form of a package. Medicine drug delivery device according to an embodiment of the present invention includes a storage unit, the transfer unit, the cutting unit, the light source unit and the scan unit. Hereinafter, each component will be described in detail with reference to the drawings.

A housing constituting the outer appearance will be described with reference to FIGS. 1 and 2. 1 is a perspective view showing the state of the drug-type drug delivery box according to an embodiment of the present invention, Figure 2 is a bottom perspective view showing the state of the drug-type drug delivery box according to an embodiment.

The housing constituting the outline of the medicine-type drug delivery box 10 includes a housing body 130, a front part 110, and a housing cover 120. The housing body 130 is formed in a rectangular parallelepiped shape as a whole. The housing cover 120 is provided at an upper end of the housing body 130. The housing cover 120 is fixed to one side to be rotatable and can be opened and closed. The front part 110 is formed with an outlet 112 through which the cut medicine is discharged. The outlet 112 is provided to penetrate through the front end cover 111 to be exposed to the outside. On the other hand, the discharge port 112 may be provided with a sensor (not shown) for detecting the discharge medicine. In this case, the number of discharged medicines may be counted by providing a counting means for counting the number of discharged medicines detected by the sensor.

As shown in FIG. 2, a rail accommodating part 140 is provided at the lower end of the housing body 130. The rail receiving unit 140 functions to receive the rail formed in the cartridge (not shown) in which the medicine-type drug delivery box according to the present embodiment is accommodated and guide when inserted.

The front part and the cut part of the housing will be described with reference to FIG. 3. Figure 3 is an exploded perspective view of a partially cut medicine drug delivery box according to an embodiment.

The front end 110 of the housing includes a front end body 115 and a front end cover 111. The front end body 115 is formed with a first medicine moving device 116 connected to the outlet 112 described above. The front end body 115 has a cutout 200 inside. The cutting part 200 is formed with a second medicine moving device 210, and cuts the medicine package moving through the second medicine moving device (210). The second medicine drug moving device 210 is connected to the first medicine drug moving device 116 of the front end body 115 and the outlet 112 of the front end cover 111 so as to be communicable.

The transfer unit, the storage unit, and the light source unit will be described with reference to FIGS. 4 and 5. Figure 4 is a cross-sectional view showing a state of the drug delivery type drug delivery box according to an embodiment, Figure 5 is a cutaway perspective view of a portion of the drug delivery type drug delivery box according to an embodiment.

The storage unit 300 is formed in a wheel shape and stored in a state in which the medicine package 2 is wound. The storage unit 300 includes a winding core 320 and a side case 310. The medicine package 2 is wound around the core 320 and unrolled by the transfer unit 400. The side case 310 has a function of preventing the drug package 2 from being wound to the side when the medicine package 2 is wound or unwound on the core 320. On the other hand, the storage unit 300 may be formed simply by the space portion that can be simply stored medicine package. In other words, it is also possible to form a simple space without a component such as a wheel in the storage portion, and to simply fold the medicine package to the formed space portion.

The transfer part 400 includes a pair of first rolls 410, a pair of second rolls 420, and a discharge roll 430. The pair of first rolls 410 includes a first upper roll 411 and a first lower roll 412. The first upper roll 411 is positioned above the first lower roll 412 and provided to contact the first lower roll 412. The outer circumferential surfaces of the first upper roll 411 and the first lower roll 412 may be formed of an elastic material, particularly a porous material. Since the outer circumferential surfaces of the first upper roll 411 and the first lower roll 412 are formed of an elastic material, the force for pressing the drugs in the medicine package interposed therebetween can be minimized. The first lower roll 412 in this embodiment is driven by a motor, preferably a stepper motor, and the first upper roll 411 is passively rotated according to the rotational direction of the first lower roll 412. The pair of first rolls 410 guides the medicine package 2 in the direction of the discharge roll 430 in a state where the front end of the medicine package 2 is first positioned.

The pair of second rolls 420 transfers the front end portion of the medicine package 2 transferred from the pair of first rolls 410 to the discharge roll 430. The pair of second rolls 420 include a second upper roll 421 and a second lower roll 422. The second upper roll 421 is positioned above the second lower roll 422 and provided to contact the second lower roll 422. The outer circumferential surfaces of the second upper roll 421 and the second lower roll 422 may be formed of an elastic material, particularly a porous material. Since the outer circumferential surfaces of the second upper roll 421 and the second lower roll 422 are formed of an elastic material, a force for pressing the drugs in the medicine package interposed therebetween can be minimized. The second lower roll 422 in this embodiment is driven by a motor, preferably a stepper motor, and the second upper roll 421 is passively rotated according to the rotational direction of the second lower roll 422. The pair of second rolls 420 transfer the foremost end of the medicine package 2 in the direction of the discharge roll 430.

On the other hand, it is preferable that the first lower roll 412 and the second lower roll 422 are driven by independent driving motors, respectively. When the medicine package 2 interposed between the first lower roll 412 and the second lower roll 422 is folded or loosened, detection of a cut line of the medicine package 2 may not be easy. In this case, any one of the first lower roll 412 and the second lower roll 422 may be driven in a direction in which tension is applied to the medicine package 2, thereby minimizing an error that may occur when the tear line is detected. At this time, it is possible to apply an accurate tension by driving the respective rolls using a step motor.

Meanwhile, the first upper roll 411 and the second upper roll 421 are connected to the upper portion by the elastic member 403. The first upper roll 411 and the second upper roll 421 are fixed by the elastic member 403 to have a predetermined operating range in the vertical direction, so that the first upper roll 411 and the second upper roll 421 are lifted by the user at the time of initial setting of the medicine package 2 or when an error occurs. When the medicine package 2 is transported while being interposed between the first roll 410 and the second roll 420, the force applied to the medicine contained in the medicine package 2 is minimized. .

A discharging roll 430 may be provided at the distal end portion of the conveying direction. The discharge roll 430 discharges the medicine package 2 conveyed from the pair of second rolls 420 to the outside. The discharge roll 430 receives the driving force using the second upper roll 421 and the timing belt.

As shown in Figure 5 includes a support 150 for supporting the medicine package to be transported via the first lower roll 412 and the second lower roll 422. The medicine package is transported in a supported state by a transport plate 151 formed in a flat plate shape on the top of the support part 150. At this time, the first lower roll 412 and the second lower roll 422 are provided in the state exposed on the transfer plate 151. The light transmitting member 152 is provided at the center of the transfer plate 151. The light transmitting member 152 transmits light emitted from the light source unit 500 provided under the light transmitting member 152. The light source unit 500 emits light using the light emitting element 510. The light emitted from the light source unit 500 is used as illumination when the medicine package is photographed by the scan unit to be described later. On the other hand, the light source unit 500 may provide illumination in an indirect lighting method. In this embodiment, the light transmitting member 152 is used in an indirect lighting method. The light transmitting member 152 may scatter or diffuse the light emitted from the light source unit 500 to uniform the illuminance distribution and prevent the light from concentrating on other components. On the other hand, unlike the present embodiment, the light source unit 500 may be provided with the light emitting device 510 facing downward so that the reflected light may be directed upward. The light source unit 500 in this embodiment is provided on the opposite side of the scan unit to be described later on the basis of the medicine package.

The scan unit and the light blocking unit will be described with reference to FIGS. 6 to 10. 6 is an exploded perspective view of the drug delivery box according to an embodiment, Figure 7 is another exploded perspective view of the drug delivery box according to an embodiment, Figure 8 is a view of the light blocking unit according to an embodiment It is a bottom perspective view which shows. 9 and 10 are schematic diagrams illustrating an operation of the scan unit, according to an exemplary embodiment.

As shown in FIG. 6, the light blocking unit 160 is included. The light blocking unit 160 includes a light blocking unit upper case 160a and a light blocking unit lower case 160b as shown in FIG. 7. The upper case 160a and the lower case 160b of the light blocking unit 160 form a predetermined space portion that may include a scan unit therein. The scan window 161 is formed in the light blocking lower case 160b as shown in FIG. 8. The scan unit to be described below may photograph the medicine package under the scan window 161 through the scan window 161. At this time, the light blocking unit 160 prevents other optical noise from flowing into the image other than the image of the medicine package. In addition, a light absorption layer (not shown) may be formed inside the light blocking unit 160 to minimize reflection of light. In this case, a matte black coating layer may be used as the light absorption layer. In addition, upper components of the transfer part 400 such as the first upper roll are exposed to the light blocking lower case 160b.

The scanning unit 600 is positioned above the light transmitting member 152, and the medicine package 2 is unwound from the storage unit 300 and transferred onto the light transmitting member 152 as illustrated in FIGS. 9 and 10. Take a series of images. At this time, it is preferable that the scan unit 600 photographs the fusion unit formed at the time of sealing the medicine package 2 of the medicine package 2.

A method of detecting a tear line of a medicine package, according to an exemplary embodiment, will be described with reference to FIGS. FIG. 11 is a block diagram illustrating components related to cut line detection of a medicine package, and FIG. 12 is a schematic diagram illustrating a schematic view of a medicine package. 13 is a flowchart illustrating a perforated line detection method according to an exemplary embodiment, FIG. 14 is a flowchart illustrating an image processing process according to an exemplary embodiment, and FIG. 15 is a flowchart illustrating a perforated line detection process according to an exemplary embodiment.

Referring to FIG. 11, as described above, the scan unit 600 captures a continuous image of the medicine package 2 that is transported using the illumination provided by the illumination unit 500. At this time, the detection unit 700 receives the continuous image photographed from the scanning unit 600 and detects the cutting line. Hereinafter, a method of detecting the cutting line of the medicine package 2 by the scan unit 600 and the detector 700 will be described in detail.

First, as shown in FIG. 12, the medicine package 2 is generally manufactured by folding a sheet in half, forming a heat fusion portion A1 by heat fusion, and then forming a cut line L1. Drugs are respectively provided by the heat-sealed portion (A1) drug receiving portion (A2) for receiving the medicine. In this case, the heat fusion portion A1 may be divided into a lateral heat fusion portion A1a and a longitudinal heat fusion portion A1b. The transverse heat seal A1a serves to seal the inlet of the medicine package 2, and the longitudinal heat seal A1b functions to partition the drug receiving portion A2 formed between the respective medicines. . Meanwhile, for convenience of explanation, hereinafter, the intersection A2 of the lateral heat fusion portion A1a and the longitudinal heat fusion portion A1b, the lateral heat fusion portion A1a and the longitudinal heat fusion portion A1b The terms of the inner crossings of P1a and P1b are used. An intersection portion A2 of the lateral heat fusion portion A1a and the longitudinal heat fusion portion A1b means a portion where the lateral heat fusion portion A1a and the longitudinal heat fusion portion A1b meet and cross each other. The inner crossing points P1a and P1b of the transverse thermal fusion portion A1a and the longitudinal thermal fusion portion A1b mean innermost intersection points of the intersection portions A2 as shown in FIG. 12. In addition, when the medicine package is transported in a predetermined direction (D1), it is divided into a first inner cross point (P1a) and a second inner cross point (P1b) according to the order photographed by the scanning unit.

The medicine package perforation detection method according to the present exemplary embodiment includes an image acquisition step S10, an image processing step S20, and a perforation line detection step S30 as illustrated in FIG. 13. In the image acquisition step (S10) to obtain an image including the cross-section of the heat-sealed portion formed in the lateral direction of the medicine package and the heat-sealed portion formed in the longitudinal direction, in the image processing step (S20) to detect the cut line Image processing is performed as a preliminary step. In the cut line detection step (S30), the cut line of the medicine package is detected using an image processed image.

At this time, if the perforation line detection step (S30) does not detect the perforation line (S40), the medicine package is further transported (S45) state in the image acquisition step (S10), image processing step (S20), perforation line detection step (S30) Repeat.

In detail, the image obtaining step may include an image obtaining first step of capturing an image of a medicine package; And an image acquisition second step of cutting out an image including an intersection of a transverse thermal fusion portion and a longitudinal thermal fusion portion of the medicine package among the captured images. That is, the size of the perforated line detection target image may be reduced by capturing an image of the medicine package using a camera and taking only necessary portions and discarding the rest.

The medicine package is formed in various ways using a transparent material or an opaque material, but in the case of the heat-sealed portion, the material of the material is transparent by being fused by high heat. Therefore, if the scan unit photographs the corresponding image after providing the light from the back of the medicine package through the lighting unit, the contrast between the image and the other part is significantly different in the case of the heat fusion unit through which the light passes.

On the other hand, in order to detect the intersection of the lateral heat-sealed portion and the longitudinal heat-sealed portion, there is a method of capturing an image by positioning the scan portion at the corresponding position. It is also possible to use a method of detecting the inner intersection of the fusion portion and inferring the position of the intersection of the lateral thermal fusion portion and the longitudinal thermal fusion portion.

Referring to FIG. 14, the image processing process S20 converts the color information from the obtained image to gray scale in order to eliminate color information (S210). On the other hand, before the conversion to gray scale, it is also possible to remove the noise of the image using a median filter if necessary.

Next, the image converted to gray scale is binarized and converted to be displayed in white and black only (S220). As a final step of the image processing, the edge of the binarized image is extracted (S230). The edge-extracted image output is converted so that the white and black borders are displayed in black. Furthermore, the noise removal may be performed by a median filter.

The perforation detection process can be performed in a variety of ways. For example, the cutting line of the medicine package may be extracted using an edge tracking method using an image of which edges are extracted, or using a pattern recognition method.

In the case of the pattern recognition method, a pattern of black pixels in the edge-extracted image is identified using various known techniques, and when a linear pattern terminating the image exists in the image, the pixels corresponding to the pattern are the perforations of the medicine package. It can be judged that

In the case of the outline tracking technique, as shown in FIG. 15, first, a black pixel located at the top of the edge extracted image is found (S310). When the black pixel located at the uppermost part is found, peripheral black pixels are detected using the corresponding pixel as a reference pixel (S320). In this case, there may be various methods. However, in the present embodiment, when tracing an outline under the image, it is determined whether there are black pixels around from three o'clock in the clockwise direction. If there are black pixels around (S340), the pixels are moved back to the reference pixel (S345) to detect the surrounding black pixels in the same manner. At this time, if no surrounding black pixels exist before reaching the bottom of the image, it is determined that the perforation line does not exist in the corresponding image (S352), and by detecting the surrounding black pixels repeatedly, the reference pixel reaches the bottom of the image. In this case, it may be determined that a perforation line exists in the corresponding image, and the movement path of the reference pixel corresponds to the perforation line. Meanwhile, in the present embodiment, only the unidirectional tracking method from the top to the bottom of the image is used, but it is also possible to continue tracking from the bottom to the top again. In this case, it is detected whether the pixel is a black pixel from the pixel at 9 o'clock of the reference pixel. If the pixel does not have black information, it is rotated clockwise to determine whether the surrounding pixel has black information. If there are black pixels in the vicinity, the pixels are moved as reference pixels to determine whether there are black pixels nearby.

As described above, when the moving path of the reference pixel is formed in a straight line from the top to the bottom of the image by tracking the outline, it may be determined that the position of the moving path of the reference pixel corresponds to the position of the cutting line of the medicine package.

A detailed description with reference to FIG. 16 is as follows. As illustrated in FIG. 16A, a black pixel is first detected at the top of the image to make the pixel the reference pixel. Next, peripheral black pixels are detected clockwise from the pixel at 3 o'clock of the reference pixel. In this case, as shown in FIG. 16B, since the pixel immediately below is a black pixel, the reference pixel is moved to the pixel below to track the surrounding black pixels clockwise from 3 o'clock. Tracking the surrounding black pixels in this manner causes the reference pixel to form a path from the right edge of the black pixels to the bottom of the image, as shown in FIGS. 6C-6F. In this case, when the black pixels protruding in the transverse direction reach the transverse end of the image or do not reach the lower end of the image, it is determined that the pixels are not cut lines. In the case of FIGS. 16A to 16F, since black pixels terminating the image exist, it may be determined as a cut line. Meanwhile, in order to increase accuracy, the outline may be further tracked from the lower end to the upper part as shown in FIGS. 16F to 16K. In this case, black pixels are tracked by rotating clockwise from the pixel at 9 o'clock of the reference pixel. As a result, when tracking the image from the bottom to the top, the left outline of the black pixels is traced. In this way, by tracking the outlines of the pixels included in the image, it is determined whether the movement path of the reference pixel terminates the image to detect the position of the perforation line.

Although the preferred embodiments of the present invention have been described above, the technical spirit of the present invention is not limited to the above-described preferred embodiments, and various series of drug-breaking lines in a range not departing from the technical spirit of the present invention specified in the claims. It can be implemented as a sensing method.

Claims

An image acquiring step of acquiring an image including an intersecting portion of the heat-sealed portion and a heat-sealed portion formed in the longitudinal direction of the medicine package;

An image processing step of processing the obtained image into an edge image; And

And a tear line detection step of detecting a tear line from the image-processed edge image.
The method of claim 1,

And repeating the image capturing step and the cutting line detecting step by transferring the medicine package when the cutting line is not detected at the cutting line detecting step.
The method of claim 1,

The image acquisition step,

Acquiring an image of the medicine package; And

And a second image obtaining step of cropping an image including an intersection of a lateral thermal fusion portion and a longitudinal thermal fusion portion of the medicine package among the photographed images.
The method of claim 3,

The second step of acquiring the image further includes detecting an inner crossing point of the lateral heat fusion unit and a longitudinal heat fusion unit to determine a position of the intersection of the lateral heat fusion unit and the longitudinal heat fusion unit. Detection method.
The method of claim 1,

The image acquiring step includes photographing only an image of an intersection point of a lateral heat seal and a longitudinal heat seal of the medicine package.
The method of claim 1,

The image processing step,

An image processing first step of converting the acquired image to gray scale;

An image processing second step of binarizing the image converted to the gray scale; And

And a third step of converting the binarized image into an edge image in which only an edge is displayed.
The method of claim 6,

And removing the noise of the image before the first step of the image processing.
The method of claim 7, wherein

The method of claim 10, wherein the noise removal is performed by a median filter.
The method of claim 1,

The detecting of the perforated line of the drug package perforated line detection method for determining the series of pixels terminating the edge image as the perforated line using an outline tracking technique.
The method of claim 9,

The cutting line detection step,

A first line detection step of detecting a pixel having black information from an upper portion of the edge image;

A perforated line detection step of determining whether the pixel has black information while turning clockwise from the right pixel of the pixel having the detected black information;

A third perforated line detecting step of repeating the second perforated line detecting step based on the determination target pixel when the pixel to be determined has black information; And

And a cut line detection step of determining a corresponding line of target pixels as a cut line when the reference pixel moves in the longitudinal direction from the top to the bottom of the edge image.
The method of claim 1,

The tear line detection step is a medicine package cut line detection method for determining the portion of the image recognized as a straight line by the pattern recognition method as a tear line.