Shape measuring device, structured object manufacturing system, shape measuring method, structured object manufacturing method, shape measuring program, and recording medium

A shape measuring method that projects a pattern onto a measurement target, acquires picture image data by capturing a picture image of an image of the pattern projected onto the measurement target in a direction different from a projection direction of the pattern, and measures the shape of the measurement target based on the image of the pattern of the picture image data, the shape measuring method comprising:

• moving a projected position of the pattern relative to the measurement target;
• setting a region of interest for acquiring information used to measure the measurement target to be in at least part of a region captured by the image capturing unit, so as to include the image of the pattern;
• measuring a shape of the measurement target based on a position of the image of the pattern positioned in the region of interest of the picture image data;
• and
• setting a reference region-of-interest in part of the region captured by the image capturing unit, wherein
• determining whether to set the region of interest based on a state of the image of the pattern in the reference region-of-interest, and setting the region of interest in a case where the image of the pattern is in the reference region-of-interest.

A non-transitory computer readable recording medium storing a shape measuring program that projects a pattern onto a measurement target, acquires picture image data by capturing a picture image of an image of the pattern projected onto the measurement target in a direction different from a projection direction of the pattern, and measures the shape of the measurement target based on the image of the pattern of the picture image data, the shape measuring program being configured to cause a computer to execute:

• moving a projected position of the pattern relative to the measurement target;
• setting a region of interest for acquiring information used to measure the measurement target to be in at least part of a region captured by the image capturing unit, so as to include the image of the pattern;
• measuring a shape of the measurement target based on a position of the image of the pattern positioned in the region of interest of the picture image data;
• and
• setting a reference region-of-interest in part of the region captured by the image capturing unit, wherein
• determining whether to set the region of interest based on a state of the image of the pattern in the reference region-of-interest, and setting the region of interest in a case where the image of the pattern is in the reference region-of-interest.

A shape measuring device comprising:

• a projection unit configured to project a pattern of light onto a measurement target;
• an image capturing unit configured to capture a picture image of a measurement target onto which the pattern of light is projected by the projection unit;
• a movement unit capable of moving a projected position of the pattern of light on the measurement target by relatively moving the projection unit and the measurement target;
• a region-of-interest setting unit configured to change a position of a region-of-interest in accordance with a movement of the image of the pattern of light in a capturing area captured by the image capturing unit, the region-of-interest being for acquiring information used to measure the measurement target, and being set to include the image of the pattern of light at least in part of the capturing area;
• and
• a measurement unit configured to measure a shape of the measurement target based on a position of the image of the pattern of light in the region-of-interest, wherein
• the region-of-interest setting unit changes the position of the region-of-interest based on at least one of a moving distance and a moving direction of the image of the pattern of light in the capturing area of the image capturing unit, the moving distance and the moving direction being with a relative movement of the projection unit and the measurement target performed by the movement unit.

A shape measuring device comprising:

• a projection unit configured to project a pattern of light onto a measurement target;
• an image capturing unit configured to capture a picture image of a measurement target onto which the pattern of light is projected by the projection unit;
• a movement unit capable of moving a projected position of the pattern of light on the measurement target by relatively moving the projection unit and the measurement target;
• a region-of-interest setting unit configured to change a position of a region-of-interest in accordance with a movement of the image of the pattern of light in a capturing area captured by the image capturing unit, the region-of-interest being for acquiring information used to measure the measurement target, and being set to include the image of the pattern of light at least in part of the capturing area;
• and
• a measurement unit configured to measure a shape of the measurement target based on a position of the image of the pattern of light in the region-of-interest, wherein
• the region-of-interest setting unit changes the position of the region-of-interest based on a distance between the image of the pattern of light and an edge of the region-of-interest.

A non-transitory computer readable recording medium storing a shape measuring program that projects a pattern of light onto a measurement target, acquires picture image data by capturing a picture image of an image of the pattern of light projected onto the measurement target in a direction different from a projection direction of the pattern of light, and measures the shape of the measurement target based on the image of the pattern of light of the picture image data, the shape measuring program being configured to cause a computer to execute:

• moving a projected position of the pattern of light relative to the measurement target;
• changing a position of a region-of-interest in accordance with a movement of the image of the pattern of light in a capturing area which is captured, the region-of-interest being for acquiring information used to measure the measurement target, and being set to include the image of the pattern of light at least in part of the capturing area;
• measuring a shape of the measurement target based on a position of the image of the pattern of light in the region-of the-interest;
• and
• changing the position of the region-of-interest based on at least one of a moving distance and a moving direction of the image of the pattern of light in the capturing area, the moving distance and the moving direction being with a relative movement of the projection unit and the measurement target.

A non-transitory computer readable recording medium storing a shape measuring program that projects a pattern of light onto a measurement target, acquires picture image data by capturing a picture image of an image of the pattern of light projected onto the measurement target in a direction different from a projection direction of the pattern of light, and measures the shape of the measurement target based on the image of the pattern of light of the picture image data, the shape measuring program being configured to cause a computer to execute:

• moving a projected position of the pattern of light relative to the measurement target;
• changing a position of a region-of-interest in accordance with a movement of the image of the pattern of light in a capturing area which is captured, the region-of-interest being for acquiring information used to measure the measurement target, and being set to include the image of the pattern of light at least in part of the capturing area;
• measuring a shape of the measurement target based on a position of the image of the pattern of light in the region-of the-interest;
• and
• changing the position of the region-of-interest based on a distance between the image of the pattern of light and an edge of the region-of-interest.