US 7,502,063 B2
Camera with scalable resolution
Richard L. Baer, Los Altos, Calif. (US)
Assigned to Aptina Imaging Corporation, Grand Cayman (Cayman Islands)
Filed on Aug. 09, 2004, as Appl. No. 10/915,591.
Prior Publication US 2006/0028564 A1, Feb. 09, 2006
Int. Cl. H04N 5/222 (2006.01)
U.S. Cl. 348—333.01  [348/231.3; 348/333.02; 382/298; 345/190; 358/518] 21 Claims
OG exemplary drawing
 
1. A camera that generates output images of configurable resolutions comprising:
a) a resolution controller that receives an image with a first resolution, a horizontal scaling factor (HSF), and a vertical scaling factor (VSF), and based thereon generates an output image with a second resolution; and
b) a memory buffer coupled to the resolution controller for storing at least one output image;
wherein the resolution controller includes an M-average mechanism that performs a monochrome average operation on the image with the first resolution based on the horizontal scaling factor (HSF) and the vertical scaling factor (VSF);
the resolution controller scales the horizontal dimension by the horizontal scaling factor (HSF) and the vertical dimension by the vertical scaling factor (VSF) to generate the output image with the second resolution; and
a region of interest (ROI) identifier is received by the resolution controller including a start row (SR), a start column (SC), an end row (ER) and an end column (EC) of the received image for scaling the horizontal dimension and vertical dimension of the identified ROI.