A reading apparatus according to an embodiment includes a captured-image reading section, an article detecting section, an object recognizing section, and a code reading section. The captured-image reading section reads, from an imaging apparatus that captures a captured image associated with distance information indicating distances to articles, the captured image associated with the distance information. The article detecting section detects images of articles in a preset predetermined imaging region in the captured image. The object recognizing section performs, based on the distance information, object recognition processing of an object, the object being an article closest from the imaging apparatus among the articles. The code reading section performs, based on the distance information, if a distance between the object and the imaging apparatus is equal to or smaller than a predetermined distance, code reading processing for detecting a code symbol from the predetermined imaging region and reading code information from the code symbol.

One embodiment of a system and method for imaging a scene from a barcode scanner device may include creating a first and second optical paths of the scene, and then causing a switchable mirror disposed along the first and second optical paths to operate in a reflective state and a transparent state. The barcode scanner device may then capture images at different focal distances and with a different field-of-views when the switchable mirror is operating in the reflective state and the transparent state.

A method and apparatus for capturing images of symbols and decoding symbols based on the distance of the target from the reader. The distance of the symbol from the reader causes the controller to switch between different parameters, imaging assemblies, decode modules and/or decode approaches in order to decode different symbology types.

An optoelectronic sensor is provided for a repeated detection of objects at different object distances, having a light receiver for generating a received signal from received light, having an evaluation unit for generating object information from the received signal, and having a distance sensor for determining the object distance from a respective object. The evaluation unit is here configured to acquire a measurement variable from the received signal with respect to an object, to associate the measurement variable with the object distance measured for the object, and to form a first distribution of the measurement variable via the object distance after detecting a plurality of objects.

The present disclosure generally relates to devices, systems, and methods associated with optical data capture. In some embodiments, the present invention is a barcode reader that includes a first linear imaging assembly, a second linear imaging assembly, and an aiming assembly configured to emit a linear aiming light pattern, where the aiming light pattern is planarly aligned with the fields of view of the first and second imaging assemblies.

An apparatus includes a distance sensor, an image sensor, one or more processors, and memory. The memory stores one or more programs configured for execution by the one or more processors. The apparatus measures a baseline depth. The apparatus measures a first depth subsequent to measuring the baseline depth. The apparatus determines that the first depth is different from the baseline depth. In response to the determination, the apparatus activates a read cycle. Subsequent to activating the read cycle, the apparatus measures a second depth. The apparatus detects that the second depth is within a threshold range of the baseline depth. In response to the detection, the apparatus deactivates the read cycle.

An apparatus includes a distance sensor, an image sensor, one or more processors, and memory coupled to the one or more processors. The apparatus determines, via the distance sensor, a distance between an object and the apparatus. In accordance with a determination that the distance between the object and the apparatus is within a first distance range of a plurality of predefined distance ranges, the apparatus identifies a subset of symbology types, from a plurality of predefined symbology types, corresponding to the first distance range. The apparatus acquires one or more images of the object. The apparatus decodes the one or more images based on the identified subset of symbology types.

Embodiments of the present disclosure include near co-axial polarized illuminator apparatuses and uses thereof. The near co-axial polarized illuminator is internally positionable in near co-axial alignment with one or more imager(s) utilized to capture a representation of a field of view illuminated by the near co-axial polarized illuminator. Embodiments include small form factor reader(s) that utilize a near co-axial polarized illuminator to improve illumination of a field of view captured via multiple imagers for detecting and/or decoding machine-readable symbologies, such as barcodes. Some embodiments include a DPM channel image sensor, a standard range channel image sensor, a near co-axial polarizer light source positioned adjacent to the DPM channel image sensor and adjacent to the standard range channel image sensor, a near co-axial polarizer aligned with the near co-axial polarizer light source, and an analyzer aligned with the DPM channel image sensor and/or the standard range channel image sensor.

An optical symbol reading system comprises an image sensor operative to capture an image of a target area, a color-sensing system sensitive to certain colors in the visible spectrum, an illumination system operative to produce various types of illumination based on illumination parameters, and a surface-profiling system arranged to measure distance to multiple points of at least one surface in the target area. The illumination system, the image sensor, and the color-sensing system are arranged such that emitted light from the illumination system, in accordance with a selected type of illumination, is directed towards the target area while a portion of the emitted light is reflected from any object of interest present in the target area and received by the image sensor and the color-sensing system. The type of illumination is selected based on output from the color-sensing system and the surface-profiling system.

An optical scanner device includes at least one image capture device and a transmitter of at least one aimer beam. The scanner device determines ranging to a subject using the at least one aimer beam projected to reflect off of a surface of the subject, and detects a position of the aimer-beam reflection within an image frame captured by the image-capture device, the position being a primary indicator of a distance to the subject from the optical scanner device. A secondary indicator of the distance to the subject within the image frame in combination with the first indicator is used to help detect the aimer beam reflection against noise and detect an occurrence of an optical misalignment with possible self-correction of calibration after such misalignment.