Title :
A 30-frames/s megapixel real-time CMOS image processor
Author :
Doswald, Daniel ; Häfliger, Jürg ; Blessing, Patrick ; Felber, Norbert ; Niederer, Peter ; Fichtner, Wolfgang
Author_Institution :
Integrated Syst. Lab., Swiss Fed. Inst. of Technol., Zurich, Switzerland
Abstract :
A real-time 1024/spl times/1024 image processor for digital motion camera systems is described. The application-specific IC (ASIC) corrects dark current and white imbalance pixelwise, and performs a color interpolation over nine lines of images from a miniaturized camera head housing a single charge-coupled device (CCD). A color space transformation is implemented to achieve true-color motion images with frame rates up to 30 frames/s. Additional features include a focus and illumination criteria calculation and a megapixel-to-PAL scan conversion. The chip area is 49 mm/sup 2/, and it was fabricated in a single-poly three-layer-metal 0.35-/spl mu/m CMOS process. The device is packaged in a 208-pin ceramic quad flat package (CQFP), and dissipates 278 mW at 2.5 V.
Keywords :
CMOS digital integrated circuits; VLSI; application specific integrated circuits; computer vision; digital signal processing chips; focusing; image colour analysis; image processing equipment; interpolation; medical image processing; real-time systems; 0.35 micron; 1024 pixel; 1048576 pixel; 2.5 V; 278 mW; CCD image sensor data; CMOS ASIC; DSP chip; application-specific IC; ceramic QFP; ceramic quad flat package; charge-coupled device sensor; color space transformation; colour interpolation; dark current correction; digital motion camera systems; focus criteria calculation; illumination criteria calculation; megapixel image processor; megapixel-to-PAL scan conversion; miniaturized camera head; real-time CMOS image processor; single-poly three-layer-metal CMOS process; true-color motion images; white imbalance correction; Application specific integrated circuits; CMOS process; Charge-coupled image sensors; Color; Dark current; Digital cameras; Interpolation; Packaging; Pixel; Real time systems;
Journal_Title :
Solid-State Circuits, IEEE Journal of
