A method of generating combined image feature sets stored in a computerized object recognition database configured for use in a computerized object recognition search, the method comprising: at a feature combining device , performing a geometric transformation using a 3-D model of the object on a first set of image features (431-434) expressed in a first 2-D coordinate system (V-W) to obtain feature locations expressed in a common 3-D coordinate system (A-B-C) for each feature in the first set of image features (431-434), wherein the first set of image features (431-434) is derived from a first image of an object and corresponds to a first object view; at the feature combining device , obtaining a second set of image features (411-414) expressed in a second 2-D coordinate system (X-Y), wherein the second set of image features (411-414) is derived from a second image of the object and corresponds to a second object view different from the first object view; at the feature combining device , designating a combined feature set comprising the first set of image features (431-434) and the second set of image features (411-414) with feature locations expressed in the second 2-D coordinate system (X-Y), wherein the designating comprises projecting feature locations expressed in the common 3-D coordinate system (A-B-C) to locations expressed in the second 2-D coordinate system (X-Y); associating, for storage in the computerized object recognition database , the combined feature set with an identifier of the object ; and at an object recognition system , using image feature derived from query image data to search the object recognition database to identify one or more potential matches for one of more objects in an image acquired by an image capturing device . at a feature combining device , performing a geometric transformation using a 3-D model of the object on a first set of image features (431-434) expressed in a first 2-D coordinate system (V-W) to obtain feature locations expressed in a common 3-D coordinate system (A-B-C) for each feature in the first set of image features (431-434), wherein the first set of image features (431-434) is derived from a first image of an object and corresponds to a first object view; at the feature combining device , obtaining a second set of image features (411-414) expressed in a second 2-D coordinate system (X-Y), wherein the second set of image features (411-414) is derived from a second image of the object and corresponds to a second object view different from the first object view; at the feature combining device , designating a combined feature set comprising the first set of image features (431-434) and the second set of image features (411-414) with feature locations expressed in the second 2-D coordinate system (X-Y), wherein the designating comprises projecting feature locations expressed in the common 3-D coordinate system (A-B-C) to locations expressed in the second 2-D coordinate system (X-Y); associating, for storage in the computerized object recognition database , the combined feature set with an identifier of the object ; and at an object recognition system , using image feature derived from query image data to search the object recognition database to identify one or more potential matches for one of more objects in an image acquired by an image capturing device . <EOS>