Apparatus and method for calibration of projected target point within an image

A computer-readable medium for locating the coordinates of a targeting symbol within an image for calibrating an optical reader device, the computer-readable medium comprising executable instructions for:

• receiving a captured image, wherein the captured image comprises a machine-readable graphical code;
• thresholding the image to identify a cluster;
• determining if there is a single object in the image or multiple objects in the image;
• if it is determined that there is the single object in the image, directing lines vertically and horizontally to the cluster to identify the targeting symbol;
• and
• upon identifying the targeting symbol, calculating coordinates of the targeting symbol in the image.

A method for locating the coordinates of a targeting symbol having a plurality of objects for calibrating an optical reader device, the method comprising:

• the optical reader device projecting each object one at a time onto a surface;
• the optical reader device capturing a plurality of images, wherein each image contains an object;
• thresholding the images to identify clusters within each image;
• directing lines vertically and horizontally across each image to the clusters to identify the objects;
• upon identifying the objects, calculating coordinates of the objects in each image;
• and
• identifying a center for the targeting symbol based on the coordinates for the objects.

An optical reader apparatus for locating the coordinates of a targeting symbol having a plurality of objects for calibration, the apparatus comprising:

• a projector for projecting the objects of the targeting symbol one at a time onto a surface;
• a camera for capturing a plurality of images, wherein each image includes an object;
• a processor in electrical communication with the projector and the camera;
• and
• a memory in electrical communication with the processor, the memory including a calibration module programmed to:
• receive the plurality of images;
• threshold the images to identify clusters within each image;
• direct lines vertically and horizontally across each image to the clusters to identify the objects;
• upon identifying the objects, calculate coordinates of the objects in each image;
• and
• identify a center for the targeting symbol based on the coordinates for the objects.

A computer readable medium for locating the coordinates of a targeting symbol having a plurality of objects for calibrating an optical reader device, the computer-readable medium comprising executable instructions for:

• receiving a plurality of images, wherein each image includes one or more objects;
• thresholding the images to identify one or more clusters within each image;
• for each image, determining if there is a single object in the image or multiple objects in the image;
• for each image that includes a single object, directing lines vertically and horizontally across the image to a cluster to identify the object;
• upon identifying the objects in the images, calculating coordinates of the objects;
• and
• identifying a center for the targeting symbol based on the coordinates for the objects.