Patent ID: 11954930
Assignee: DIGIMARC CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 10:
11. An image processing apparatus comprising:
an input to obtain 2-dimensional (2D) image data representing a 1-dimensional (1D) barcode within a first image area;
means for generating a plurality of scanlines across the first image area;
means for synchronizing for each of the plurality of scanlines, including decoding an initial set of numerical digits represented by each of the plurality of scanlines, in which said synchronizing provides a scale estimate for each of the plurality of scanlines;
a path decoder for decoding remaining numerical digits within each of the plurality of scanlines, the path decoder decoding multiple numerical digits in groups, in which the scale estimate is adapted as the remaining numerical digits are decoded; and
means for providing decoded numerical digits as an identifier for each of the plurality of scanlines.