JP2017179630A - Device and method for supporting cutting of fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device and a method for supporting the cutting of a fabric which enable cutting processing after checking a product image after sewing, created on the basis of a cutting image of the fabric.SOLUTION: A device for supporting the cutting of a fabric includes: a design image processing unit 101 which creates three-dimensional shape data on the basis of paper pattern data, and pastes paper pattern image data onto the three-dimensional shape data to create design image data; an image capturing processing unit 100 which processes the image of the fabric captured to create captured image data; a cutting line creating unit 104 which, on the basis of the paper pattern data and the captured image data, creates cutting line data according to a pattern expressed on the fabric; a product image processing unit 102 which, on the basis of the cutting line data and the captured image data, extracts cutting image data and pastes it onto the three-dimensional shape data to create product image data; and an image checking processing unit 103 which performs the display processing of a product checking image including the product image data.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a cloth cutting support apparatus and method for cutting a cloth on which a pattern is displayed along a preset cutting line.

  When producing clothing and other products, the fabric is finished through a process of cutting fabrics, knitted fabrics, non-woven fabrics, etc. to create the original parts of the product, and joining the created parts by sewing etc. It is common. Further, in the case where a pattern is displayed in advance on the fabric before cutting, in general, a part is created by cutting according to the displayed pattern. Conventionally, the pattern displayed on the fabric has been formed by a dyeing process. However, in recent years, it has also been proposed to form a pattern using an ink jet recording apparatus.

  As means for cutting a fabric on which a pattern is created, cutting by an automatic cutting machine is known in addition to conventional manual cutting. When cutting with an automatic cutting machine, the cutting is usually performed according to predetermined cutting data set by an image processing apparatus such as CAD.

  However, when actually cutting the fabric on which the pattern is displayed, the fabric is easily distorted when the fabric is set on the cutting stage, and the position of the fabric is different from the position of the pattern corresponding to the set cutting data. A pattern may be displayed. In this case, it is necessary to correct the cutting data according to the actual pattern position.

  In order to cope with this, for example, in Patent Document 1, a fabric is placed on a cutting bed, a pattern is placed on the upper surface of the fabric, the pattern is read by an image sensor, and the read image is displayed on the screen to display an arbitrary pattern. A marker creation system is described in which the position of the pattern is designated, the pattern shape data of the pattern is selected, and the screen is displayed according to the designated position. Further, Patent Document 2 describes a cutting apparatus that places a cloth on a cutting bed, places a pattern on the upper surface of the cloth, automatically traces the outline of the pattern by a CCD camera, and generates cutting data. .

JP 2012-193473 A JP 2012-144827 A

  In Patent Document 1, the arrangement of the pattern for each cutting part can be confirmed by screen display, but the pattern in the final product form after sewing cannot be confirmed. For example, whether sewing patterns, motifs, marks, etc. are arranged in the preset layout of the final product, or whether there is any deviation between the patterns of the cut parts after sewing. Without it you can't confirm. For this reason, there is a problem that, after cutting the fabric, if there is a problem in confirming the final product finished by sewing the cut parts, the fabric must be reworked and cut again. In Patent Document 2, although it is possible to adjust each part of the fabric including deformation and distortion by changing the cutting pattern corresponding to the fabric, it is not possible to confirm and adjust the final product form. In the case where there is a problem after confirming the finished finished product after cutting with the adjusted cutting pattern, there is a problem that reworking and recutting of the fabric becomes necessary.

  Therefore, an object of the present invention is to provide a fabric cutting support device and method that can perform a cutting process by checking a product image after sewing generated based on a cutting image of a fabric.

  A cloth cutting support device according to the present invention is a cloth cutting support device of a cutting system that photographs a cloth set on a cutting stage and cuts the cloth based on the pattern data of clothes, and three-dimensionally based on the pattern data A design image processing unit that generates shape data and pastes the pattern image data obtained from the pattern data and the pattern image data displayed on the fabric to the three-dimensional shape data, and is photographed A photographing processing unit for processing photographed images of the fabric to generate photographed image data, and a cutting line for generating cutting line data in accordance with the pattern displayed on the fabric based on the pattern data and the photographed image data. A cutting unit that extracts cutting image data based on the cutting line data and the captured image data; It includes a product image processing unit that generates a product image data pasted to the serial three-dimensional shape data, an image confirmation processing section which performs a display process of a product confirmation image including the product image data. Furthermore, the image confirmation processing unit compares the design image data and the product image data to calculate data indicating a pattern shift and performs an image display process indicating the pattern shift.

  The cloth cutting support method according to the present invention is a cloth cutting support method of a cutting system that photographs a cloth set on a cutting stage and cuts the cloth based on the pattern data of the clothes, and is based on the pattern data. Photographing the cloth that has been photographed by generating shape data and pasting the pattern data obtained from the pattern data and the pattern image data displayed on the cloth onto the three-dimensional shape data to generate design image data. An image is processed to generate photographed image data, cutting line data is generated in accordance with the pattern displayed on the fabric based on the pattern data and the photographed image data, and the cutting line data and the photographed image data are generated. Based on this, the cut image data is extracted, and the cut image data is pasted on the three-dimensional shape data to generate product image data. , It displays the product confirmation image including the product image data. Further, the product confirmation image includes an image indicating a pattern shift calculated by comparing the design image data and the product image data.

  By having the above-described configuration, the present invention can perform a cutting process by confirming a product image after sewing generated based on a cut image of the fabric.

It is a schematic structure figure about a cloth cutting system provided with a cloth cutting support device concerning the present invention. It is a functional block block diagram regarding a fabric cutting system. It is a flow regarding the process which produces | generates design image data. It is explanatory drawing which shows an example of pattern paper data. It is an example of an image which shows a picture displayed on a cloth. FIG. 5 is an example image showing three-dimensional shape data generated based on the pattern data shown in FIG. 4. FIG. 6 is an image example showing a design image generated by extracting a pattern image as a texture image from the pattern image shown in FIG. 5 and pasting it on the three-dimensional shape data shown in FIG. 6. It is a flow regarding a fabric cutting process. FIG. 6 is an example of a photographed image obtained by photographing a fabric F in which the pattern shown in FIG. 5 is displayed by printing or the like. FIG. 10 is an image example in which cutting lines are superimposed on the photographed image shown in FIG. 9. FIG. FIG. 10 is an image example showing a product image generated by extracting a cut image from the photographed image shown in FIG. 9 as a texture image and pasting it on the three-dimensional shape data shown in FIG. 6. It is an example of a parts area image which extracted the area | region of the front body of the design image shown in FIG. FIG. 12 is an example of a part area image obtained by extracting a front body area of the product image illustrated in FIG. 11. 14 is a difference image of the part region image example shown in FIGS. 12 and 13.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiments described below are preferable specific examples for carrying out the present invention, and thus various technical limitations are made. However, the present invention is particularly limited in the following description. Unless otherwise specified, the present invention is not limited to these forms.

  FIG. 1 is a schematic configuration diagram relating to a fabric cutting system including a fabric cutting support device according to the present invention. In the fabric cutting system, a fabric F to be cut into a plurality of parts is placed on a support surface on the cutting stage 1, and a cover film 2 having optical transparency is supplied to the upper surface of the fabric F by a supply roll 3. It is set so as to cover the entire support surface. An air intake device (not shown) is provided in the cutting stage 1, and the air intake device sucks and fixes the fabric F and the cover film 2 set on the support surface so as to be in close contact with the support surface.

  On the upper surface of the cutting stage 1, a cutting head mechanism 4 is installed as a cutting means. The cutting head mechanism 4 moves in the Y direction, and a cutting head (not shown) in the cutting head mechanism 4 moves in the X direction. Then, it moves above the fabric F and cuts into a part shape corresponding to the pattern P. The cutting head mechanism 4 is irradiated with laser light from a laser irradiation device (not shown) toward the cutting head, and moves the cutting head while irradiating the laser light from the cutting head toward the fabric F. The fabric F is cut by being thermally cut by a laser beam.

  Above the support surface of the cutting stage 1, a photographing device 5 is installed as photographing means for photographing the set fabric F, and the photographing device 5 has a function capable of photographing the entire cutting stage 1. The photographing device 5 transmits photographed image data regarding the photographed fabric F to the fabric cutting support device 6. The fabric cutting support device 6 generates cutting line data based on pre-stored pattern data and photographed image data, and generates cutting image data based on the cutting line data and photographed image data, as will be described later. Product image data is generated based on the image data and the three-dimensional shape data of the product. Then, the product image data can be displayed on the display, and the final finish of the product can be confirmed in detail. The fabric cutting support device 6 is configured to input a program into a known device such as a personal computer to realize a function necessary for supporting the cutting operation.

  In this example, a laser is used as the cutting means, but a cutting means using a cutting blade may be used. The fabric F is a pattern in which a pattern is displayed on a sheet material such as a woven fabric, a knitted fabric, and a non-woven fabric. It may be displayed by a known method such as a forming method by the method. The design pattern may be displayed by being woven or knitted into the fabric F using a plurality of different colored yarns, or may be displayed by bonding a seal or the like to the fabric F.

  FIG. 2 is a functional block configuration diagram relating to the fabric cutting system. The fabric cutting system includes a control unit 10, an imaging unit 11, an input unit 12, a storage unit 13, a laser irradiation unit 14, a cutting head moving unit 15, a fabric setting unit 16, and a display unit 17.

  The control unit 10 controls the operation of the entire apparatus, and the photographing unit 11 photographs the fabric F set on the support surface of the cutting stage 1 by the photographing device 5. The input unit 12 performs operation input such as parameters to be set when performing the cutting operation, or inputs correction data when correction is necessary by checking the generated cutting line.

  The storage unit 13 stores data necessary for the cutting process, and also stores programs and data necessary for operation control of the apparatus. Specifically, a pattern DB 13a for storing pattern data, a shape DB 13b for storing three-dimensional shape data generated by a well-known sewing simulation program (see, for example, MarvelousDesigner, optitex) based on the pattern data, and formation of a fabric pattern The pattern image DB 13c for storing the pattern image data used in the above, the photographed image DB 13d for storing the photographed image data photographed by the photographing device 5, and the pattern image data obtained from the pattern data and the pattern image data are converted into three-dimensional shape data. A design image DB 13e for storing design image data created by pasting, and a product image for storing product image data created by pasting cutting image data obtained from the cutting line data and photographed image data to the three-dimensional shape data DB13f is provided.

  The laser irradiation unit 14 operates a laser irradiation device to irradiate laser light toward the cutting head. The cutting head moving unit 15 performs movement control of the cutting head mechanism 4 and moves the cutting head to a predetermined position on the fabric F so as to be positioned. The fabric setting unit 16 operates the intake device provided in the cutting stage 1 to set the fabric F and the cover film 2 on the support surface. The display unit 17 displays various images and data necessary for cutting processing such as a pattern image, a photographed image, a cutting image, a part area image, a design image, and a product image.

  The control part 10, the input part 12, and the memory | storage part 13 can be comprised using a well-known information processing apparatus. A CPU is used as the control unit 10, an input device such as a keyboard or a mouse is used as the input unit 12, an internal hard disk and an external hard disk are used as the storage unit 13, and a program stored in the storage unit 13 is read out and processed by the CPU. Thus, the function of each part can be realized. Moreover, the imaging | photography part 11, the laser irradiation part 14, the cutting head moving part 15, and the fabric setting part 16 can implement | achieve the function by connecting and using each apparatus corresponding to it to an information processing apparatus.

  The control unit 10 includes an imaging processing unit 100, a design image processing unit 101, a product image processing unit 102, an image confirmation processing unit 103, a cutting line generation unit 104, and a cutting processing unit 105. The imaging processing unit 100 processes the captured image of the fabric F input from the imaging unit 11 to generate captured image data. The design image processing unit 101 generates three-dimensional shape data by a known sewing simulation program based on the pattern data and pastes the pattern image data obtained from the pattern data and the pattern image data to the three-dimensional shape data. Generate data. The product image processing unit 102 extracts the cutting image data based on the cutting line data and the photographed image data generated by the cutting line generation unit 104, and pastes the obtained cutting image data on the three-dimensional shape data. Generate data. The image confirmation processing unit 104 performs display processing of a product confirmation image including product image data. As the product confirmation image, product image data can be displayed or a design image can be displayed together and confirmed by comparison with the product image. In addition, the image confirmation processing unit 104 can also display data indicating the pattern deviation calculated by the image comparison process between the product image and the design image. In the image comparison processing, for example, the direction and amount of the pattern deviation is calculated by calculating data indicating the pattern deviation based on the difference image between the two images or by obtaining the pattern deviation as a vector based on a known processing method such as optical flow. Can be calculated.

  As described later, the cutting line generation unit 104 generates cutting line data by correcting the paper pattern data according to the pattern displayed on the fabric F based on the paper pattern data and the captured image data. For example, by extracting the feature points of the pattern from the photographed image and correcting the contour shape of the pattern data according to the feature points, a cutting line can be created corresponding to the distortion, size, shape, etc. of the pattern displayed on the fabric F. Can be set. The cutting processing unit 105 performs a process of controlling the laser irradiation unit 14 and the cutting head moving unit 15 so as to perform a cutting operation based on the generated cutting line data.

  FIG. 3 is a flow relating to processing for generating design image data. The pattern data used for the cutting process and the pattern image data related to the pattern displayed on the fabric F are stored in advance in each DB of the storage unit 13. FIG. 4 is an explanatory diagram showing an example of pattern data, and shows the outline shape of the pattern related to a one-piece skirt. FIG. 5 is an example of an image showing a pattern displayed on the fabric, and is a two-dimensional image.

  First, three-dimensional shape data is generated based on the pattern data using a known sewing simulation program and stored in the storage unit 13 (S101). FIG. 6 is an image example showing three-dimensional shape data generated based on the pattern data shown in FIG. Next, the pattern image data is extracted as a texture image from the pattern image data based on the pattern data (S102). Then, the three-dimensional design image data is generated by pasting the pattern image data to the three-dimensional shape data by the texture mapping process (S103). FIG. 7 is an image example showing a design image generated by extracting a pattern image as a texture image from the pattern image shown in FIG. 5 and pasting it on the three-dimensional shape data shown in FIG.

  Through the above processing, a three-dimensional design image can be generated based on the data obtained at the design stage of clothing design.

  FIG. 8 is a flow relating to the fabric cutting process. The fabric F is previously arranged on the support surface of the cutting stage 1, the cover film 2 is pulled out and arranged so as to cover the upper surface of the fabric F, and the fabric F is closely fixed to the support surface by an air intake device. First, the entire fabric F disposed on the support surface of the cutting stage 1 is photographed by the photographing device 5 to obtain photographed image data and stored in the storage unit 13 (S201). FIG. 9 shows an example of a photographed image obtained by photographing the fabric F in which the pattern shown in FIG. 5 is displayed by printing or the like.

  Next, the pattern data is read out and matched with the photographed image, and correction processing according to the pattern is performed to generate cutting line data (S202). In the correction process, for example, a feature point of a pattern is extracted and automatically processed so as to correct the position of the pattern data according to the feature point, or a photographed image is displayed on the display unit 17 to correspond to the pattern data. The contour shape may be displayed in an overlapping manner, and the position of the pattern data may be corrected manually by visual input. It is also possible to correct the position of the pattern data by placing a transparent pattern on which the position recognition marker is displayed on the fabric and detecting the marker from the photographed image. FIG. 10 shows an image example in which cutting lines are superimposed on the photographed image shown in FIG. The cutting line data is set by adjusting the position of the pattern data in accordance with the pattern of the photographed image.

  Next, cut image data is extracted from the captured image data based on the generated cut line data (S203). The contour shape by the cutting line is superimposed on the photographed image, the photographed image is cut along the contour shape, and the cut image data is extracted as a texture image. Then, the three-dimensional product image data after sewing is generated by pasting the cut image data by the texture mapping process to the three-dimensional shape data obtained in the design image data generation process shown in FIG. 3 (S204). FIG. 11 is an image example showing a product image generated by extracting a cut image from the photographed image shown in FIG. 9 as a texture image and pasting it on the three-dimensional shape data shown in FIG.

  Next, display processing of a product confirmation image is performed using the obtained design image data and product image data (S205). Since the design image and the product image are displayed as a three-dimensional image, the entire image can be confirmed in detail by rotating and displaying 360 degrees freely in the vertical and horizontal directions. As the product confirmation image, only the product image can be displayed, or the product image and the design image can be displayed together and compared with each other so that the product image after sewing can be easily confirmed. Then, the displayed product confirmation image is visually confirmed to check whether the product image has a problem such as a pattern shift (S206).

  Compared to the product image example shown in FIG. 11 and the design image example shown in FIG. 7, the pattern shift at the sewing portion is conspicuous, and the distortion of the fabric F arranged on the cutting stage 1 and the correction process when setting the cutting line are performed. It is presumed that the deviation is affected. Therefore, when it is determined that there is a problem in step S206 (S206; YES), a confirmation process for comparing both images is performed (S207). In the image comparison process, the part area image of both images is extracted and the difference image between them is obtained and displayed, or the optical flow between the part area images is obtained by a known processing method, and the pattern displacement is displayed in vector. It is possible to quantitatively grasp the pattern deviation. Then, the distortion of the fabric F is corrected according to the grasped pattern deviation, and the process returns to step S201 to perform the cutting process from the beginning.

  12 is an example of a part area image obtained by extracting the front body area of the design image shown in FIG. 7, and FIG. 13 is an example of a part area image obtained by extracting the front body area of the product image shown in FIG. FIG. 14 shows a difference image of the part region image example shown in FIGS. 12 and 13. If the two part area images are completely the same, the difference image will be a single black color. However, since a non-black color will be generated as a difference image in the part where the pattern deviation has occurred, the pattern deviation will occur in any part. It is possible to grasp and respond quantitatively. In addition, by obtaining the optical flow between the part area images and displaying them in vector, the direction and amount of the pattern shift in the product image can be grasped quantitatively, and the arrangement of the fabric and the cutting line can be corrected. The accuracy can be further increased.

  As described above, when it is determined that there is no problem in step S206 (S206; NO), the cutting stage is determined by repeatedly correcting the arrangement of the fabric and the cutting line while confirming the finished product image after sewing. The cutting process is performed along the cutting line set for the fabric F arranged in the (S208).

  By performing the cutting process as described above, the three-dimensional product image after sewing can be checked before the cutting process to check for the presence of pattern misalignment, which is accurate without depending on the intuition and proficiency of the operator. It is possible to minimize the occurrence of defective products by performing a proper cutting process.

DESCRIPTION OF SYMBOLS 1 ... Cutting stage, 2 ... Cover film, 3 ... Supply roll, 4 ... Cutting head mechanism, 5 ... Imaging apparatus, 6 ... Information processing apparatus, 10 ... Control part , 11 ... photographing part, 12 ... input part, 13 ... storage part, 14 ... laser irradiation part, 15 ... cutting head moving part, 16 ... fabric set part, 17 ... Display unit 100 ... Image processing unit 101 ... Design image processing unit 102 ... Product image processing unit 103 ... Image confirmation processing unit 104 ... Cut line generation unit 105 ..Cut processing part, F ... cloth

Claims (4)

  A cloth cutting support device of a cutting system that photographs a cloth set on a cutting stage and cuts the cloth based on pattern data of clothes, and generates three-dimensional shape data based on the pattern data, and the pattern data and A design image processing unit that generates design image data by pasting pattern image data obtained from the pattern image data displayed on the fabric to the three-dimensional shape data; and processing a photographed image of the photographed fabric A photographing processing unit for generating photographed image data; a cutting line generating unit for generating cutting line data in accordance with a pattern displayed on the fabric based on the pattern data and the photographed image data; the cutting line data; Extracting the cut image data based on the photographed image data and pasting the cut image data on the three-dimensional shape data And product image processor for generating an article image data, and has the fabric cutting support device and an image confirmation processing section which performs a display process of a product confirmation image including the product image data.   The fabric cutting support device according to claim 1, wherein the image confirmation processing unit compares the design image data and the product image data to calculate data indicating a pattern shift and performs an image display process indicating the pattern shift.   A cloth cutting support method of a cutting system for photographing a cloth set on a cutting stage and cutting the cloth based on pattern data of clothes, wherein the pattern data and the three-dimensional shape data are generated based on the pattern data, and The pattern image data obtained from the pattern image data displayed on the cloth is pasted on the three-dimensional shape data to generate design image data, and the photographed image of the photographed cloth is processed to generate photographed image data. Cutting line data in accordance with the pattern displayed on the fabric based on the pattern data and the photographed image data, and extracting the cutting image data based on the cutting line data and the photographed image data. A product including the product image data by generating product image data by pasting the cut image data on the three-dimensional shape data Fabric cutting support method to display a sure image.   The fabric cutting support method according to claim 3, wherein the product confirmation image includes an image indicating a pattern shift calculated by comparing the design image data and the product image data.