Systems and methods are disclosed for object detection by receiving an image; segmenting the image; extracting features from the image; and performing a dimension-wise spatial layout selection to pick up dimensions inside a discriminative spatial region for classification. The fibration X is generated such that a term xiyj) of xiyj having a 1-variable polynomial cij of t as a coefficient is included in the fibration X. The processor can also compare the postage amount for a first carrier and shipping method, with that of a second carrier and shipping method, or between two shipping methods offered by the same carrier. A coupler is configured for removably coupling one of the panels of the cheering devices to an outer surface of the back hand covering. In the extended position, the forward member extends outward a distance beyond a forwardmost portion of the mouthpiece, and in the retracted position, a forwardmost portion of the forward member is positioned rearward of the forwardmost portion of the mouthpiece with an access portion of the mouthpiece accessible by a user. A dimension between inside elevation startup edges of the right and left projecting portions is set smaller than a dimension between right and left elevation startup edges of the central elevated portion, and a first missing portion is formed on an outside corner of an end portion of each of the right and left projecting portions opposing the central elevated portion.