Apparatus and method for digital image stabilization using object tracking
First Claim
1. An apparatus for digital image stabilization comprising:
- an image signal processing unit operative to output a first digital image obtained under a first exposure value condition and a plurality of second digital images obtained under a second exposure value condition;
a compensating unit operative to compensate for motion in a plurality of comparative second digital images relative to a reference second digital image using object tracking, and generate a compensated image by overlapping each compensated comparative image with the reference image; and
an image property correcting unit operative to correct a property of the compensated image based on a property of the first digital image wherein an object labeling unit operative to classify the plurality of second digital images into a reference image and one or more comparative images, and label an object of the reference image and an object of each comparative image using object tracking;
a motion value computing unit operative to match the object of each comparative image with the object of the reference image, calculate a parameter of the matched object, and compute a motion value of each comparative image relative to the reference image with the calculated parameter;
a motion compensating unit operative to apply each computed motion value to a corresponding comparative image to compensate for motion of each comparative image;
and a compensated image generating unit operative to overlap each motion-compensated comparative image with the reference image to generate a compensated image.
3 Assignments
0 Petitions
Accused Products
Abstract
Apparatus for digital image stabilization using object tracking can produce a digital still image free of an image blurring phenomenon caused by shaky hands without separate hardware and can produce an image that is bright, clear, and noise free. The apparatus includes an image signal processing unit that outputs a first digital image obtained under a first exposure value condition and a plurality of second digital images obtained under a second exposure value condition. The apparatus also includes a shaky hand compensating unit that compensates for motion in comparative second digital images relative to a reference second digital image using object tracking. The compensating unit then generates a shaky hand compensated image by overlapping each compensated comparative image with the reference image. The apparatus further includes an image property correcting unit that corrects a property of the shaky hand compensated image based on a property of the first digital image.
20 Citations
25 Claims
-
1. An apparatus for digital image stabilization comprising:
-
an image signal processing unit operative to output a first digital image obtained under a first exposure value condition and a plurality of second digital images obtained under a second exposure value condition; a compensating unit operative to compensate for motion in a plurality of comparative second digital images relative to a reference second digital image using object tracking, and generate a compensated image by overlapping each compensated comparative image with the reference image; and
an image property correcting unit operative to correct a property of the compensated image based on a property of the first digital image wherein an object labeling unit operative to classify the plurality of second digital images into a reference image and one or more comparative images, and label an object of the reference image and an object of each comparative image using object tracking;
a motion value computing unit operative to match the object of each comparative image with the object of the reference image, calculate a parameter of the matched object, and compute a motion value of each comparative image relative to the reference image with the calculated parameter;
a motion compensating unit operative to apply each computed motion value to a corresponding comparative image to compensate for motion of each comparative image;and a compensated image generating unit operative to overlap each motion-compensated comparative image with the reference image to generate a compensated image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A method for digital image stabilization using object tracking comprising:
-
receiving a first digital image obtained under a first exposure value condition and a plurality of second digital images obtained under a second exposure value condition;
compensating for motion in a plurality of comparative second digital images relative to a reference second digital image using object tracking;
generating a compensated image by overlapping each compensated comparative image with the reference image; and
correcting a property of the compensated image based on a property of the first digital image the compensating for motion comprises;classifying the plurality of second digital images into a reference image and comparative images;
extracting objects from the reference image and each comparative image, labeling the extracted objects, and calculating a parameter of each labeled object;
matching the object of each comparative image with the object of the reference image, and computing a motion value of each comparative image using the parameter of the matched object;
applying each computed motion value to a corresponding comparative image to compensate for motion of each comparative image;and overlapping each motion-compensated comparative image with the reference image to generate a shaky hand compensated image. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
-
Specification