mark detection

mark detection

[′märk di‚tek·shən]
(computer science)
That class of character recognition systems which employs coded documents, in the form of boxes or windows, in order to convey intended information by means of pencil or ink marks made in specific boxes.
References in periodicals archive ?
Robredo's camp claimed that under the Random Manual Audit Visual Guidelines of the Comelec, a valid mark is a mark whose score is higher than the Vote Counting Machine's (VCM) mark detection threshold of 20 to 25% or higher of the oval.
In the past two years, Roll-2-Roll Technologies has widened its web sensor product line with sensing windows of 16 mm, 48 mm, 221mm, and 440 mm with infrared, white light and UV light sources.This allows for a multitude of applications for the Converting industry that includes edge detection, line detection, mark detection, web width monitoring and measurement, single and multiple strand detection for counting of wires and measurement of distances between wires, and contrast detection, monitoring and measurement, without any need of cumbersome calibration procedures.
Jimenez said the same set of printers had been used in the past three elections, although the precinct count optical scanners used in the 2010 and 2013 polls did not have the stray mark detection feature.
The new ARMS 5.0 includes an enhanced auto-detect algorithm for up to 30% faster mark detection, supports an expanded cut area outside the registration mark boundary, and supports registration mark sensing embedded within multiple copies.
Ideal for high-speed packaging processes, the SICK KTM achieves fast-paced print mark detection with short response times and tine grey-tone resolution, even where media is shiny.
Systems that may be either camera or sensor based for mark detection, distortion monitoring and length and position control.
* Bad mark detection, which is performed using the machine's standard downward-looking camera (also used for fiducials and teaching) and detects a range of marks on various substrates, including flex circuits.
The DK12 is designed to provide reliable reference mark detection in a compact and rugged metal housing.
Buyers of optimizing saws rated 13 saw attributes to be of equally critical importance during the prepurchase evaluation period: cut-to-length accuracy (typically [+ or -] 1/32 inch); ease of clearing jammed boards; length measuring design; mark detection design; overall production speed; waste handling; sorting accuracy; ease of use; board drive design; maintenance reliability; service reliability; warranties and assurances; and the degree of damage to wood products.
The Windows-based control software operates on a laptop PC and provides fast-time code/event mark detection and synchronization.
ARIS WPS 48 is the most versatile of the sensor line with options of Infrared light source for most applications, White Light source for contrast and edge sensing and UV for ultraviolet mark detection. It requires an ARIS SCU sensor control unit.