Localization of machine-readable indicia in digital capture systems

An apparatus comprising:

• memory for buffering image data, the image data having been captured with a camera and depicting a printed object;
• one or more multi-core processors programmed for:
• generating a feature set from buffered image data;
• using a first trained classifier to determine whether the feature set includes data representing a barcode;
• and
• using N additional trained classifiers to determine an orientation angle associated with the barcode, wherein N comprises an integer greater than 3, and wherein the orientation angle is determined based on a probability metric.

An apparatus comprising:

• electronic memory for buffering image data, the image data having been captured with a digital camera and depicting a printed or displayed object;
• means for generating a feature set from the image data, the feature set being associated with edge orientation of the image data;
• means for determining whether the feature set includes data representing a barcode, in which said means for determining whether the feature set includes data representing a barcode utilizes a first trained classifier;
• and
• means for determining an orientation angle associated with the barcode, in which said means for determining an orientation angle utilizes N additional trained classifiers to, wherein N comprises an integer greater than 3, and wherein the orientation angle is determined based on a probability metric.