Abstract: When a feature point extractor sets feature points on one of the images acquired by a first and second image acquirer, a template setting unit sets a base template containing a feature point onto an edge-extracted image of the acquired image. If the image within the base template is segmented by an edge, the template setting unit sets a transformed template, wherein a segmented sub-region that does not contain the feature point is deleted from the base template, and a region equal in area to the deleted region is added to the sub-region that does contain the feature point. A distance computing unit conducts template matching with respect to the one or more other images using either the base template or the transformed template, and computes the shooting distance to the matching feature point.

Abstract: An aging-resistant rubber material with an improved heat resistance without deteriorating the moldability even if a rubber layer is formed from an aqueous latex of rubber and without any cost increase, even if a surface tack prevention treatment by an antitack agent is carried out, can be produced by applying a coating liquid containing an amine-based antioxidant in solution or dispersion to the surface of a cross-linked rubber material, followed by heating to a temperature of 80° C. or higher, thereby diffusing the amine-based antioxidant into the rubber material. When a coating solution containing an antitack agent together with the amine-based antioxidant in solution or dispersion is used, the surface tack prevention treatment of the cross-linked material as a product can be made at the same time.

Abstract: An aging-resistant rubber material with an improved heat resistance without deteriorating the moldability even if a rubber layer is formed from an aqueous latex of rubber and without any cost increase, even if a surface tack prevention treatment by an antitack agent is carried out, can be produced by applying a coating liquid containing an amine-based antioxidant in solution or dispersion to the surface of a cross-linked rubber material, followed by heating to a temperature of 80° C. or higher, thereby diffusing the amine-based antioxidant into the rubber material. When a coating solution containing an antitack agent together with the amine-based antioxidant in solution or dispersion is used, the surface tack prevention treatment of the cross-linked material as a product can be made at the same time.