Embodiments of the present invention may provide automated techniques for checking store shelves for compliance with planograms that can handle unknown arrangements in a uniform way, with little user involvement, and with relatively low processing complexity. For example, a computer-implemented method for determining compliance with a planogram may comprise receiving at least one image of a plurality of shelves containing objects, receiving at least one planogram representing desired positions of the objects on the shelves, wherein each row of the planogram corresponds to one shelf, adjusting positions of objects in the planogram to reflect a size of the shelves, determining a tolerance for inaccuracy in object position in the image using object dimension data, detecting object positions in the image, aligning each row of the planogram individually to the detected object positions, and comparing the detected object positions with the adjusted planogram positions to generate compliance information.