A method of generating an image that shows an embroidery area in an embroidery frame for computerized embroidery includes: acquiring a first image of a calibration board that has multiple feature points forming a contour approximating an embroidery area defined by the embroidery frame; identifying the feature points of the calibration board in the first image to acquire multiple graphical feature points; acquiring a geometric curved surface that fits the graphical feature points and that includes multiple curved surface points; acquiring a second image in which the embroidery area of the embroidery frame is shown; and performing image correction on the second image based on the geometric curved surface to generate a corrected image.

Computerized methods and software for creating customized embroidery. Embodiments include capturing a drawing from a user in a browser window as captured vectors, receiving the captured vectors and desired stitching parameters at an embroidery engine on a server, and creating a planned pattern of stitches from the captured vectors and the desired stitching parameters. Some embodiments include returning a rendering of the planned pattern of stitches to the browser or returning rendering vectors to the browser for drawing the planned pattern of stitches in the browser for inspection by the user. The drawing can include a freehand drawing, handwriting, or a signature, drawn or written by the user in the browser window. The desired stitching parameters can include angle, width, underlay type, density, or pull compensation of the stitches. In some embodiments, width varies along a vector path, for instance, based on pressure applied by the user while drawing.

Computerized methods and software for creating customized embroidery. Embodiments include capturing a drawing from a user in a browser window as captured vectors, receiving the captured vectors and desired stitching parameters at an embroidery engine on a server, and creating a planned pattern of stitches from the captured vectors and the desired stitching parameters. Some embodiments include returning a rendering of the planned pattern of stitches to the browser or returning rendering vectors to the browser for drawing the planned pattern of stitches in the browser for inspection by the user. The drawing can include a freehand drawing, handwriting, or a signature, drawn or written by the user in the browser window. The desired stitching parameters can include angle, width, underlay type, density, or pull compensation of the stitches. In some embodiments, width varies along a vector path, for instance, based on pressure applied by the user while drawing.

Disclosed are various systems and features for use with a machine, such as a sewing machine, to facilitate virtual light curtain systems that may enable features such as detection of ingress or egress of objects into an operational area and gestural input. Such systems and features may be useful in the context of performing an action along a self-guided path on a substrate.

A controller acquires sewing data for sewing an applique piece on a sewing target material, the applique piece having a shape having a hole, the hole being a closed area surrounded by at least part of the applique piece, identifies a contour of the applique piece while distinguishing an inner contour and an outer contour, the inner contour being the contour defining the hole of the applique piece, the outer contour being the contour other than the inner contour, determines, based on the acquired sewing data, whether an inner stitch and an outer stitch are arranged at positions closer to each other than a particular distance or at positions overlapping each other, and outputs an error notification in response to determining that the inner stitch and the outer stitch are arranged at positions closer to each other than the particular distance or at positions overlapping each other.

A controller acquires sewing data for sewing an applique piece on a sewing target material, the applique piece having a shape having a hole, the hole being a closed area surrounded by at least part of the applique piece, identifies a contour of the applique piece while distinguishing an inner contour and an outer contour, the inner contour being the contour defining the hole of the applique piece, the outer contour being the contour other than the inner contour, determines, based on the acquired sewing data, whether an inner stitch and an outer stitch are arranged at positions closer to each other than a particular distance or at positions overlapping each other, and outputs an error notification in response to determining that the inner stitch and the outer stitch are arranged at positions closer to each other than the particular distance or at positions overlapping each other.

Using an existing embroidery design that has been created for applique, data is automatically created for a cutting machine, which will cut the applique. Currently, the user currently has to cut these by handa labor intensive process or use a custom die that can be expensive. The process only requires that the applique steps in the sewing sequence are labeled as such. Generally, the applique steps are so labeled in order for the design creator to be able to let the sewer know what they are doing.

Using an existing embroidery design that has been created for applique, data is automatically created for a cutting machine, which will cut the applique. Currently, the user currently has to cut these by handa labor intensive process or use a custom die that can be expensive. The process only requires that the applique steps in the sewing sequence are labeled as such. Generally, the applique steps are so labeled in order for the design creator to be able to let the sewer know what they are doing.

A thread color comparison unit compares and judges whether or not a comparison target is the same as a comparison reference with a given thread color of a given design stored in a thread color storage unit as the comparison target and with a given thread color of another given design that differs from the given design as the comparison reference. A thread color grouping unit performs grouping for the comparison target and the comparison reference included in different designs when the comparison target and the comparison reference are the same color. When the thread color comparison unit has judged that the comparison target is the same as the comparison reference, the thread color storage unit stores information such that the comparison target is to be sewn together with the comparison reference that has been judged to be the same, and the sewing data for the comparison target is removed.

A thread color comparison unit compares and judges whether or not a comparison target is the same as a comparison reference with a given thread color of a given design stored in a thread color storage unit as the comparison target and with a given thread color of another given design that differs from the given design as the comparison reference. A thread color grouping unit performs grouping for the comparison target and the comparison reference included in different designs when the comparison target and the comparison reference are the same color. When the thread color comparison unit has judged that the comparison target is the same as the comparison reference, the thread color storage unit stores information such that the comparison target is to be sewn together with the comparison reference that has been judged to be the same, and the sewing data for the comparison target is removed.