Dynamically reconfigurable vision with high performance CMOS active pixel sensors (APS)
SENSORS, 2002 IEEE - Tập 1 - Trang 21-26 vol.1
Tóm tắt
A high-performance computational imager based on integration of CMOS active pixel imager array with on-chip signal processing and control via a new column-parallel architecture is presented. Unlike CCDs and other CMOS imagers, the sensor is capable of providing simultaneous image data from three flexible, partially overlapping, dynamically reconfigurable regions of interest (ROIs) with different spatial resolution over a large field-of-view (FOV) to achieve data-efficient operation with high update rates. The power dissipation depends upon reconfiguration modes, but is small even in the worst case. Unlike conventional computational imagers, the integration of processing circuitry does not trade with radiometric accuracy, nor does it impose any limit to scaling the imager size to larger format and smaller pixels. By eliminating the need for mechanical pointing through floating-fovea support, the dynamically reconfigurable vision sensor (DSRVS) enables a low-power staring vision system. By maximizing system throughput through intelligent data reduction and through real-time programmability, it meets the diverse and conflicting requirements of search, identify and track vision-modes, and represents an efficient platform for high-bandwidth automatic target acquisition and tracking.
Từ khóa
#CMOS image sensors #Pixel #Intelligent sensors #Target tracking #CMOS process #Array signal processing #Process control #Computer architecture #Spatial resolution #Power dissipationTài liệu tham khảo
10.1109/76.611169
10.1007/BF00055153
pain, 2000, One Chip Digital Camera With Extended Low-Light Detection Capability, Proc 13th Int Conf VLSI Design 2000, 342
yang, 1998, A Snap-Shot CMOS Active Pixel Imager For Low-Noise, High-Speed Imaging, IEEE Tech Dig Int Electron Device Meeting, 45
krymski, 2001, A High-Speed, 240 Frames/Sec 4 Megapixel CMOS Imager, Proc IEEE Workshop on Charge Coupled Devices and Advanced Image Sensors, 28
stack, 2000, Target Acquisition And Tracking System Based On A Real-Time Reconfigurable, Multi-Window CMOS Image Sensor, Proceedings of SPIE Acquisition Tracking and Pointing, 4025, 99
10.1109/82.847066
moini, 1999, Vision Chips
10.1109/16.628830
sandini, 1999, Image Transmission With A Retina-Like CMOS Camera, Proc IEEE Workshop on CCD and Advanced Imager Workshop, 41
10.1109/4.551910
theuwissen, 1995, Solid-State Imager with Charge-Coupled-Devices
10.1109/4.982422
scott, 1990, Hierarchical Multiresolution Data Structures and Algorithms for Foveal Vision Systerns, Proc IEEE International Conference on Systems Man and Cybernetics, 1402
pain, 1999, Analysis And Enhancement Of Low-Light-Level Performance Qf Photodiode Type CMOS Active Pixel Imagers Operated With Sub-Threshold Reset, Proc IEEE Workshop on Charge Coupled Devices and Advanced Image Sensors, 140