REALTIME OBJECT MEASUREMENT

摘要

A system and process of nearsighted (myopia) camera object detection involves detecting the objects through edge detection and outlining or thickening them with a heavy border. Thickening may include making the object bold in the case of text characters. The bold characters are then much more apparent and heaver weighted than the background. Thresholding operations are then applied (usually multiple times) to the grayscale image to remove all but the darkest foreground objects in the background resulting in a nearsighted (myopic) image. Additional processes may be applied to the nearsighted image, such as morphological closing, contour tracing and bounding of the objects or characters. The bound objects or characters can then be averaged to provide repositioning feedback for the camera user. Processed images can then be captured and subjected to OCR to extract relevant information from the image.

主权项

1. A method of communicating adjustments for relative positioning of a handheld electronic device with a camera, and a document, the method comprising:
continuously receiving, at a processor of the handheld electronic device, a plurality of images of characters on the document; dynamically detecting edges of the characters while continuously receiving the images; thickening the edges of the characters; thresholding the edges of the characters; displaying, using a display of the handheld camera, the edges of the characters; determining an average font height of the characters using the edges of the characters; and determining relative positioning information about positioning of the handheld electronic device relative to the document.