US 7,596,284 B2
High resolution image reconstruction
Ramin Samadani, Menlo Park, Calif. (US)
Assigned to Hewlett-Packard Development Company, L.P., Houston, Tex. (US)
Filed on Jul. 16, 2003, as Appl. No. 10/620,937.
Prior Publication US 2005/0013509 A1, Jan. 20, 2005
Int. Cl. G06K 9/32 (2006.01)
U.S. Cl. 382—299  [382/298; 348/208.13; 345/698] 19 Claims
OG exemplary drawing
 
1. A system for reconstructing a high resolution image from at least one image sequence of temporally related high and low resolution image frames, each of said high resolution image frames including a low spatial frequency component and a high spatial frequency component, said system comprising:
a tangible memory storing instructions; and
a processor coupled to the memory, operable to execute the instructions, and based at least in part on the execution of the instructions operable to perform operations comprising
generating a low spatial frequency component from a low resolution image frame of said at least one image sequence;
generating a high spatial frequency component from at least one high resolution image frame of said at least one image sequence, said at least one high resolution image frame being closely related to said low resolution image frame;
mapping said high spatial frequency component to a motion-compensated high spatial frequency component estimate of said low resolution image frame;
adding said motion-compensated high spatial frequency component estimate of said low resolution image frame to said generated low spatial frequency component of said low resolution image frame to form a reconstructed high resolution image of said low resolution image frame; and
controlling relative contributions of said motion-compensated high spatial frequency component estimate of said low resolution image frame and said generated low spatial frequency component of said low resolution image frame in the reconstructed high resolution image of said low resolution image frame based on measures of confidence in motion estimates used to map said high spatial frequency component to the motion-compensated high spatial frequency component estimate of said low resolution image frame.