Abstract: Optical reading system and methods having multiple modes of operation, for example: omnidirectional and single-code picking; fixed and handheld reading; 1D and 2D code reading. In one configuration, an image-based system obtains input data via an area sensor (e.g., a 2D CCD array) with only data corresponding to a pattern of virtual scan lines being stored and processed. A user may implement different operating modes such as a first mode reading codes in any location or orientation and a second mode reading only a code oriented along a particular virtual scan line or group thereof. Alternately, the data reader is operable to switch between handheld mode selecting a first pattern of virtual scan lines to process and/or decode and a fixed mode selecting a second pattern of virtual scan lines to process and/or decode. Virtual scan patterns in either mode can change within or between frames.

Abstract: Systems and methods for reducing erroneous weighing of items such as by detecting items extending beyond a periphery of a weigh platter whereby in one configuration, the system employs a light guide for routing a light beam to a detector operative to detect interruption of the beam due to an item encroaching upon or overhanging an edge of the platter. In another configuration, the scale includes a perimeter gap between the platter outer edge and scanner housing frame or checkout counter, a light beam directed angularly upward through the gap is partially obstructed by the frame and platter whereby light exits the gap forming a light plane, wherein an object placed on the platter extending across the gap intersects the light plane thus scattering light rays, some of which are sensed by a detector. Various indicators for alerting the operator of off-scale detection are also described.

Abstract: Systems and methods for reducing erroneous weighing of items such as by detecting items extending beyond a periphery of a weigh platter whereby in one configuration, the system employs a light guide for routing a light beam to a detector operative to detect interruption of the beam due to an item encroaching upon or overhanging an edge of the platter. In another configuration, the scale includes a perimeter gap between the platter outer edge and scanner housing frame or checkout counter, a light beam directed angularly upward through the gap is partially obstructed by the frame and platter whereby light exits the gap forming a light plane, wherein an object placed on the platter extending across the gap intersects the light plane thus scattering light rays, some of which are sensed by a detector. Various indicators for alerting the operator of off-scale detection are also described.

Abstract: Systems and methods are provided for reducing erroneous weighing of items by detecting items extending beyond a peripheral edge of a weigh platter associated with a data reader. For example, in response to a weigh request a scale guard module acquires data indicative of whether an item extends between the weigh platter and another surface, compares the acquired data to reference data, and based on the comparison, determines whether an item extends off the weigh platter and thus on to another surface. The scale guard module may utilize non-electromagnetic compression waves, radio waves, a portion of a data reader's scan field to scan a set of patterns extending along at least one edge of the weigh platter, an imaging based scanner to capture an image of at least one edge of the weigh platter, light beams extending along at least one edge of the weigh platter, or any combination thereof.

Abstract: Data reading systems and methods for operating data readers such as optical code readers and RFID readers. Certain preferred embodiments are directed to data readers having improved operation features for switching between various operation modes such as, for example, switching between handheld/portable mode and fixed mode using an on board inertial sensor such as an accelerometer or gyroscopic device capable of sensing various movements, motions, and/or orientations.

Abstract: A merchandise checkout system for ringing up merchandise in a grocery or other retail facility is disclosed. The merchandise checkout system includes visual sensors for acquiring images of an object to be rung up at checkout; a database configured to retain a visual model and UPC code of known items; and a processor configured to maintain and update the database with information about new merchandise presented for checkout. The visual model preferably includes at least one image of each item of merchandise in the retail store as well as geometric point features extracted from images of the merchandise. The processor in the exemplary embodiment is configured to: (a) compare the image of the object acquired at checkout to the visual model of the items in the database; (b) recognize the object based on the overall appearance of the packaging; (c) automatically ring up the price of the object at the POS; and (d) automatically add the acquired image to the database if the image of the object is new, i.e.

Abstract: Disclosed are embodiments of methods, systems, and apparatus for providing multiple image fields or regions on an imaging array. In certain preferred embodiments, a high density imaging array may be partitioned into two or more regions, each of which may be used to render a separate view of the scan volume. This arrangement may provide an increase in the effective scan volume beyond the volume available with a single imager having a single point of view and may allow for reading of encoded symbols at a variety of orientations that would otherwise preclude accurate imaging with a single imager.

Abstract: Systems and methods are disclosed for using object recognition/verification and weight information to confirm accuracy of an optical code scan, or to provide an affirmative recognition where no scan was made. One example checkout system includes: an optical code scanner configured to generate a product identifier; at least one camera for capturing one or more images of an item; a database of features and images of known objects; an image processor configured to: extract geometric point features from the images; identify matches between extracted geometric point features and features of known objects; generate a geometric transform between extracted geometric point features and features of known objects for a subset of known objects corresponding to matches; and identify one of the known objects based on a best match of the geometric transform; and a transaction processor configured to execute a set of actions if the identified object is different than the product identifier.

Abstract: Systems and methods are provided for prioritizing an order in which to process a plurality of sub-regions of an acquired image of an optical code. A method of processing an optical code in a data reader comprises the steps of receiving data corresponding to a plurality of sub-regions of an acquired image of an optical code, processing according to a processing order the plurality of sub-regions for decodable data corresponding to the optical code, determining based on the step of processing the plurality of sub-regions whether one or more of the plurality of sub-regions contains decodable data, and if it is determined that a sub-region contains decodable data, increasing the processing priority associated with said sub-region. If one or more of the sub-regions having the highest processing priority contains decodable data, the remaining sub-regions do not need to be processed, which may save processing resources and increase the read throughput.

Abstract: Systems and methods for preventing fraud during retail checkout are described. A system includes: item identifier acquisition devices to acquire identifiers (e.g., barcodes) of items to be transacted; cameras or imagers to acquire images of the items to be transacted; an object recognition component to perform visual recognition of the acquired items through comparison of the acquired images of the items with a database and obtain identifiers of items represented in the database that correspond to an acquired image according to a correspondence criterion; a comparison component to compare a set of identifiers acquired through the item identifier acquisition devices with a set of identifiers obtained through the object recognition component; and an alerting component to provide an alert in case of discrepancies between the two sets.

Abstract: A data reader, such as an optical code reader, including one or more imagers, the data reader having a generally horizontal central section with an upward extension on a first end and a depression on a second end opposite the upward extension, the depression being configured to provide a better angle of view of an object in the view volume above the central section from the second end from a position below the surface of the horizontal central section. In one configuration, an image from the view volume along and over the depression is directed by one or more fold mirrors and focused by a lens system onto an imager or sensor array, these optics components, along with the window through which they view, are all disposed below the surface of the central section. Preferably, where the horizontal central section is a weigh platter for a scanner-scale, the optics of the data reader such as the fold mirror(s), lens system and imager are unsupported by the weigh platter and thus are off the scale.

Abstract: Systems and methods for automatically checking out items located on a moving conveyor belt for the purpose of increasing the efficiency of a checkout process and revenue at a point-of-sale. The system includes a conveyor subsystem for moving the items, a housing that enclosed a portion of the conveyor subsystem, a lighting subsystem that illuminates an area within the housing, visual sensors that can take images of the items including UPCs, and a checkout system that receives the images from the visual sensors and automatically identifies the items. The system may include a scale subsystem located under the conveyor subsystem to measure the weights of the items, where the weight of each item is used to check if the corresponding item is identified correctly. The system relies on matching visual features from images stored in a database to match against features extracted from images taken by the visual sensors.

Abstract: An automated system for reading optical codes includes a conveyor system to automatically transport objects and an object measurement system positioned along the conveyor system to measure the transported objects. In one configuration, the object measurement system generates model data representing three-dimensional models of the objects; multiple image capture devices positioned along the conveyor system capture images as the objects are transported to enable an optical code reading system to read optical codes that are captured in the images. An exception identification system associates optical codes with the three-dimensional models to determine whether an exception has occurred.

Abstract: Systems and methods for data reading, which in one example configuration is directed to an automated optical code data reader in the form of a tunnel or portal scanner having an open architecture configured with front and rear inverted U-shaped arches, a plurality of cameras (some or most of which have multiple fields of view) in each of the arches for reading the top five sides of an item being passed by a conveyor through a read region formed by the arches, and a bottom reader including one or more cameras under the conveyor for reading a bottom side of the item through a gap in the conveyors as the item is passed over the gap. Also disclosed are specific imaging schemes for providing effective views of the items with a minimum number of cameras.

Abstract: An integrated scanner and scale is provided having a thin profile and incorporating imaging technology to scan and read optical codes. The scanner-scale is sufficiently thin to allow a cash drawer to fit beneath the scanner-scale in a check stand. Side imagers are positioned and configured to scan multiple sides of an item. The field of view (FOV) of each imager defines at least a portion of a scan volume, wherein scanning is nearest to optimal. One or more imagers can be positioned on the checker side and the customer side, such that an optical path (or a portion thereof) from the scan volume to the one or more imagers is positioned entirely above a platter of the scanner. Mirrors fold and direct the optical path to direct the FOV of a bottom imager such that the bottom imager is positioned sufficiently close to the platter to allow the scanner-scale to have a thin profile.

Abstract: An integrated data reader and electronic article surveillance (EAS) system, and methods of operation. Several configurations are also disclosed for alternate deactivation coil designs and mounting schemes.

Abstract: Systems and methods for recognizing and identifying items located on the lower shelf of a shopping cart in a checkout lane of a retail store environment for reducing or preventing loss or fraud and increasing the efficiency of a checkout process efficiency. The system includes one or more visual sensors that can take images of items and a computer system that receives the images and automatically identifies the items. The system can be trained to recognize the items using images taken of the items. The system relies on matching visual features from training images to match against features extracted from images taken at the checkout lane. Using the scale-invariant feature transformation (SIFT) method, for example, the system can compare extracted visual features of the images to the features stored in a database to find one or more matches, where the found one or more matches are used to identify the items.