A barcode-reading system may include a barcode-reading enhancement accessory that is securable to a mobile device. The accessory may include an optic system that is configured to shape and filter illumination from a white light source of the mobile device to project targeting illumination onto a target surface. Calibration data may indicate a relationship between surface distance and at least one feature offset of the targeting illumination. A barcode-reading application may determine a feature offset of the targeting illumination in an image that is captured by the camera assembly of the mobile device. The application may also determine an estimated surface distance based on the calibration data and the feature offset. The application may also use the estimated surface distance to adjust at least one operating parameter of the mobile device.

This patent specification describes a barcode-reading system for a mobile device. The mobile device include an image sensor array for generating a color image of a target area. The color image includes sub-images each captured with a portion of the image sensor array sensitive to different bands of illumination. The barcode reading system may include an optic system configured to produce a targeting illumination pattern of a particular band of illumination passed by an optical filter within the target area. An image processing function of a barcode-reading application may create a grayscale composite image of a barcode by combining the sub-images. In combining the sub-images, a contribution from a sub-image captured by a portion of the image sensor array most sensitive to the particular band for the targeting illumination may be smaller than a contribution from the other two sub-images captured by other portions of the image sensor array.

One embodiment of a system and method for imaging objects from a barcode scanner may include generating a first color light source drive signal having a first duty cycle and a second color light source drive signal having a second duty cycle that is greater than the first duty cycle. In response to applying the first and second color light source drive signals to first and second color light sources, respectively, combining light beams generated by the first and second color light sources to produce a white illumination beam. An image sensor may generate image data of an object inclusive of a chine readable indicia captured in an image by the image sensor while illuminated by the white illumination beam. The machine readable indicia of the object in the image data may be read.

The invention provides a block decoding method and system for a two-dimensional code. The block decoding method includes: storing a received two-dimensional code image in an image data backup register; binarizing the received two-dimensional code image; searching for a boundary line of the two-dimensional code image; segmenting each of the regions into bit regions each of which corresponds to one bit data; re-acquiring the received two-dimensional code image stored in the image data backup register; calculating an average gray-scale value of all the pixels in the bit region as a gray-scale value of the bit region; calculating a gray-scale threshold of each of the bit regions n using the Otsu method; binarizing the bit region so as to obtain a binarized two-dimensional code image; and decoding the binarized two-dimensional code image. In the system, the two-dimensional code image is segmented precisely, thereby effecting quick and accurate decoding.

A barcode-reading system may include a barcode-reading enhancement accessory that is securable to a mobile device. The accessory may include an optic system that is configured to shape and filter illumination from a white light source of the mobile device to project targeting illumination onto a target surface. Calibration data may indicate a relationship between surface distance and at least one feature offset of the targeting illumination. A barcode-reading application may determine a feature offset of the targeting illumination in an image that is captured by the camera assembly of the mobile device. The application may also determine an estimated surface distance based on the calibration data and the feature offset. The application may also use the estimated surface distance to adjust at least one operating parameter of the mobile device.

This patent specification describes a barcode-reading system for a mobile device. The mobile device include an image sensor array for generating a color image of a target area. The color image includes sub-images each captured with a portion of the image sensor array sensitive to different bands of illumination. The barcode reading system may include an optic system configured to produce a targeting illumination pattern of a particular band of illumination passed by an optical filter within the target area. An image processing function of a barcode-reading application may create a grayscale composite image of a barcode by combining the sub-images. In combining the sub-images, a contribution from a sub-image captured by a portion of the image sensor array most sensitive to the particular band for the targeting illumination may be smaller than a contribution from the other two sub-images captured by other portions of the image sensor array.

Described herein are systems and methods configured for serving pixel mapped content to one or more merchandising communication systems. A merchandising communication system may be included at a retail environment or other location. Pixel mapped content may include barcodes, text, and other desired content.

This patent specification describes a barcode-reading system for a mobile device. The mobile device include an image sensor array for generating a color image of a target area. The color image includes sub-images each captured with a portion of the image sensor array sensitive to different bands of illumination. The barcode reading system may include an optic system configured to produce a targeting illumination pattern of a particular band of illumination passed by an optical filter within the target area. An image processing function of a barcode-reading application may create a grayscale composite image of a barcode by combining the sub-images. In combining the sub-images, a contribution from a sub-image captured by a portion of the image sensor array most sensitive to the particular band for the targeting illumination may be smaller than a contribution from the other two sub-images captured by other portions of the image sensor array.

Described herein are systems and methods configured for serving pixel mapped content to one or more merchandising communication systems. A merchandising communication system may be included at a retail environment or other location. Pixel mapped content may include barcodes, text, and other desired content.

This invention provides a system and method for auto-regulation of parameters a vision system camera and/or associated illumination of objects imaged by the camera using a plurality of differentiated gain (multi-gain) settings on the camera's image sensor to determine the gain value producing the most-readable image. The image (having the best characteristics) acquired using multiple gain settings can be read for information as a discrete gain image and/or the camera parameters (e.g. global gain and/or global exposure time) can be uniformly set across the pixel array to the best values for acquisition of a subsequent, higher sampled image. This image is then read (e.g. decoded) for information contained within any identified features of interest (e.g. found IDs).