Sewing data generating apparatus, sewing data generating method, recording medium for storing program, and sewing system

Patent metadata

Field	Value
Publication number	US-9957651-B2
Application number	US-201715437512-A
Country	US
Kind code	B2
Filing date	Feb 21, 2017
Priority date	Apr 28, 2016
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

A sewing data generating unit acquires embroidery frame information and a mark alignment region displayed on a display unit for guiding multiple marks that define an embroidery region of the embroidery frame. When the marks are all positioned within the mark alignment region displayed on the display unit, the sewing data generating apparatus acquires an image of the embroidery frame and a sewing target mounted on a base cloth mounted on the embroidery frame. The sewing data generating apparatus performs image analysis based on a correspondence between the acquired information with respect to the embroidery frame and the marks in the acquired image, so as to determine the embroidery region of the embroidery frame. The sewing data generating apparatus generates outline data for the sewing target based on the determined embroidery region. This allows an applique to be sewn at an accurate position without a need to prepare dedicated data.

First claim

What is claimed is:

1. A sewing data generating apparatus comprising:
an embroidery frame information acquisition unit that acquires information with respect to an embroidery frame and information with respect to a mark alignment region displayed on a display unit for guiding a plurality of marks arranged at preset positions within the embroidery frame for defining an embroidery region of the embroidery frame;
an image acquisition unit that acquires an image of the embroidery frame and a sewing target mounted on a base cloth mounted on the embroidery frame when all the plurality of marks are aligned within the mark alignment region in an image displayed on the display unit;
an acquired image analyzing unit that performs image analysis for the plurality of marks in the image acquired by the image acquisition unit based on a correspondence with the information with respect to the embroidery frame acquired by the embroidery frame information acquisition unit;
an embroidery region determination unit that determines the embroidery region of the embroidery frame based on an analysis result obtained by the acquired image analyzing unit; and
an outline data generating unit that generates outline data of the sewing target based on the embroidery region thus determined.

2. The sewing data generating apparatus according to claim 1 , comprising a sewing data generating unit that generates sewing data for the sewing target based on the outline data generated by the outline data generating unit.

3. The sewing data generating apparatus according to claim 2 , comprising a transmission unit that transmits the sewing data, which is generated by the sewing data generating unit for the sewing target, to a sewing machine.

4. The sewing data generating apparatus according to claim 1 , comprising an operation instructing unit that calls attention to inputting a positioning instruction for the embroidery frame such that the plurality of marks displayed on the display unit are all positioned within the mark alignment region.

5. The sewing data generating apparatus according to claim 4 , wherein the operation instructing unit provides at least one from among a guidance display and an audio guidance.

6. The sewing data generating apparatus according to claim 1 , comprising a gravity direction detection unit that detects a gravity direction,
wherein the display unit further displays an image acquisition orientation guidance display for guiding an alignment between an image acquisition optical axis of the image acquisition unit and the gravity direction based on a detection result obtained by the gravity direction detection unit.

7. The sewing data generating apparatus according to claim 6 , wherein, when the plurality of marks are aligned within the mark alignment region and when judgment has been made based on the detection result obtained by the gravity direction detection unit that the image acquisition optical axis aligns with the gravity direction, the image acquisition unit automatically performs image acquisition.

8. The sewing data generating apparatus according to claim 7 , comprising a correction unit configured such that, when there is an inclination between the display unit and the embroidery region thus determined in the image acquired by the image acquisition unit, the inclination is corrected.

9. The sewing data generating apparatus according to claim 1 , wherein the acquired image analyzing unit performs thinning image processing on the image of the plurality of marks thus acquired,
and wherein the embroidery region determination unit determines the embroidery region based on the plurality of marks thus subjected to the thinning image processing.

10. The sewing data generating apparatus according to claim 2 , comprising a sewing data confirmation unit that instructs the display unit to display an image of the sewing target acquired by the image acquisition unit and a planned sewing line generated based on the sewing data generated by the sewing data generating unit.

11. The sewing data generating apparatus according to claim 10 , wherein the sewing data confirmation unit displays the planned sewing line in a color that can be easily identified visually with respect to colors in the image including the sewing target.

12. The sewing data generating apparatus according to claim 1 , comprising an editing unit that edits the outline data according to an operation by a user.

13. A sewing data generating method comprising:
acquiring, by an embroidery frame information acquisition unit, information with respect to an embroidery frame and information with respect to a mark alignment region displayed on a display unit for guiding a plurality of marks arranged at preset positions within the embroidery frame for defining an embroidery region of the embroidery frame;
acquiring, by an image acquisition unit, an image of the embroidery frame and a sewing target mounted on a base cloth mounted on the embroidery frame when the plurality of marks displayed on the display unit are all positioned within the mark alignment region;
performing image analysis by an acquired image analyzing unit for the plurality of marks in the image acquired by the image acquisition unit based on a correspondence with the information with respect to the embroidery frame acquired by the embroidery frame information acquisition unit
determining, by an embroidery region determination unit, the embroidery region of the embroidery frame based on an analysis result obtained by the acquired image analyzing unit; and
generating, by an outline data generating unit, outline data of the sewing target based on the embroidery region thus determined.

14. A sewing system comprising a sewing data generating apparatus and a sewing machine, wherein the sewing data generating apparatus comprises:
an embroidery frame information acquisition unit that acquires information with respect to an embroidery frame and information with respect to a mark alignment region displayed on a display unit for guiding a plurality of marks arranged at preset positions within the embroidery frame for defining an embroidery region of the embroidery frame;
an image acquisition unit that acquires an image of the embroidery frame and a sewing target mounted on a base cloth mounted on the embroidery frame when all the plurality of marks are aligned within the mark alignment region in an image displayed on the display unit;
an acquired image analyzing unit that performs image analysis for the plurality of marks in the image acquired by the image acquisition unit based on a correspondence with the information with respect to the embroidery frame acquired by the embroidery frame information acquisition unit;
an embroidery region determination unit that determines the embroidery region of the embroidery frame based on an analysis result obtained by the acquired image analyzing unit;
an outline data generating unit that generates outline data of the sewing target based on the embroidery region thus determined; and
a transmission unit that transmits, to the sewing machine, the outline data generated by the outline data generating unit or otherwise the sewing data for the sewing target generated based on the outline data,
and wherein the sewing machine comprises:
a reception unit that receives the outline data or otherwise the sewing data transmitted from the transmission unit; and
a sewing operation executing unit that executes a sewing operation for the outline of the sewing target according to the outline data or otherwise the sewing data received by the reception unit.

Assignees

• Janome Sewing Machine Co Ltd

Inventors

• Kongo Takeshi

Classifications

• D05C11/06

  Needle-driving or control mechanisms · CPC title

• D05C5/02 Primary

  by electrical or magnetic control devices · CPC title

• G06T2210/16

  Cloth · CPC title

• D05C3/02

  with vertical needles · CPC title

• G06T7/33 Primary

  using feature-based methods · CPC title