Apparatus and method for specifying and aiming cameras at shelves

A method comprising:

• storing, in memory of a computing device, a mapping of a plurality of required minimum pixel-resolutions to respective ones of a plurality of labels, wherein the required minimum pixel-resolutions correspond to an image resolution required to identify a corresponding one of a plurality of items using an image;
• capturing, using an imaging capture device associated with the computing device, an image of a label;
• selecting, using the mapping and based on the image of the label, one of the plurality of required minimum pixel-resolutions;
• determining, based on the selected one of the plurality of required minimum pixel-resolutions and a camera position relative to a shelf, a value of an output parameter, wherein the output parameter is at least one of an elevation angle of a camera, a vertical resolution, a horizontal resolution, a vertical field of view, and a horizontal field of view;
• and
• outputting the determined value of the output parameter to facilitate positioning of the camera.