Abstract: The disclosure concerns face recognition systems. The aim is to identify candidate matching images to a probe image. There is provided methods, software and computer system to select (22, 24) a method of matching images from two or more methods of matching images based on an underlying resolution (20) of the probe image (8). Comparing two images of differing resolutions is common in surveillance environments. To alleviate this degradation, the method advantageously dynamically selects the most appropriate matching method for a probe image. The disclosure also provided methods to determine the underlying resolution of a probe (8) or gallery image (14).

Abstract: The disclosure concerns face recognition systems. The aim is to identify candidate matching images to a probe image. There is provided methods, software and computer system to select (22, 24) a method of matching images from two or more methods of matching images based on an underlying resolution (20) of the probe image (8). Comparing two images of differing resolutions is common in surveillance environments. To alleviate this degradation, the method advantageously dynamically selects the most appropriate matching method for a probe image. The disclosure also provided methods to determine the underlying resolution of a probe (8) or gallery image (14).