Maryland's Defense Patent Database

The defense community in Maryland is an R&D powerhouse.

Use this database to see the innovative patents that are poised for commercialization.

Method of super-resolving images

Patent image
CCDC ARL

This invention presents a super-resolution image reconstruction from a sequence of aliased imagery. The sub-pixel shifts (displacement) among the images are unknown due to uncontrolled natural jitter of the imager. A correlation method is utilized to estimate sub-pixel shifts between each low resolution aliased image with respect to a reference image. An error-energy reduction algorithm is derived to reconstruct the high-resolution alias-free output image. The main feature of this proposed error-energy reduction algorithm is that we treat the spatial samples from low-resolution images that possess unknown and irregular (uncontrolled) sub-pixel shifts as a set of constraints to populate an over-sampled (sampled above the desired output bandwidth) processing array. The estimated sub-pixel locations of these samples and their values constitute a spatial domain constraint. Furthermore, the bandwidth of the alias-free image (or the sensor imposed bandwidth) is the criterion used as a spatial frequency domain constraint on the over-sampled processing array.

Inventors: 
Young, Shiqiong Susan
Patent Number: 
Technical domain: 
IT and Software
FIle Date: 
2005-01-19
Grant Date: 
2009-10-13
Grant time: 
1,728 days
Grant time percentile rank: 
31
Claim count percentile rank: 
6
Citations percentile rank: 
2
'Cited by' percentile rank: 
2
Assignee: 
US ARMY