Image measuring device and program
AssigneeMitutoyo Corporation
InventorHiroyuki Yoshida
Life of this patent
Estimating the term…
Abstract
An image measuring device includes an image capturer capturing an image of a work piece, a displacer relatively displacing the work piece and the image capturer, a position acquirer obtaining a position where the image is captured by the image capturer, a controller controlling the image capturer to capture partial images of the work piece while displacing the image capturer relative to the work piece at a fixed speed using the displacer, a total image former forming a total image of the work piece by pasting together a plurality of partial images captured by the image capturer based on position data obtained by the position acquirer, and a light source integrally displacing with the image capturer relative to the work piece and emitting light at a portion of the work piece captured by the image capturer.
Claims17
An image measuring device comprising:
- an image sensor configured to capture an image on a generally rectangular image capture region of the image sensor, of a measurable object;
- a motor configured to relatively displace the object and the image sensor;
- a processor and a memory that stores an instruction, wherein upon execution of the instruction, the processor operates as:
- a position acquirer configured to acquire a position where the image is captured by the image sensor;
- a controller configured to control the image sensor to capture partial images of the object while displacing the image sensor relative to the object at a fixed speed using the motor;
- and
- a total image former configured to form a total image of the object by pasting together a plurality of partial images captured by the image sensor based on position data acquired by the position acquirer;
- and
- a light source integrally displaceable with the image sensor relative to the object, the light further configured to emit light at a portion of the object captured by the image sensor,
- wherein:
- the image sensor is set so as to capture a plurality of only linear regions, each linear region of the plurality of linear regions being a portion of the image capture region and representing a partial image of the object,
- a width direction of the linear regions match a relative displacement direction between the object and the image sensor, and
- the controller controls the image sensor to capture a plurality of the partial images of the object sequentially without overlap of the partial images in the width direction.
At least one tangible, one non-transitory computer-readable medium storing an executable set of instructions for measuring an image which, when executed by a computer processor, causes the processor to execute operations comprising:
- capturing, by an image sensor, an image of a measurable object on a generally rectangular image capture region of the image sensor;
- relatively displacing the object and the image sensor;
- acquiring a position where the image is captured by the image sensor;
- controlling, by the processor, the image sensor to capture partial images of the object while displacing the image sensor relative to the object at a fixed speed;
- forming, by the processor, a total image of the object by pasting together a plurality of partial images captured by the image sensor based on the acquired position data;
- integrally displacing a light with the image sensor relative to the object;
- emitting, from the light, light at a portion of the object captured by the image sensor,
- setting the image sensor so as to capture a plurality of only linear regions, each linear region of the plurality of linear regions being a portion of the image capture region and representing a partial image of the object, wherein a width direction of the linear regions match a relative displacement direction between the object and the image sensor, and
- controlling, by the processor, the image sensor to capture a plurality of the partial images of the object sequentially without overlap of the partial images in the width direction.
Dependencies are inferred from the claim text.