In order to realize omnidirectional real-time detection and awareness in thermal infrared (IR) region,a kind of biomimetic miniature IR imaging detection system (BMIRIDS) has been successfully developed.It is classifi...In order to realize omnidirectional real-time detection and awareness in thermal infrared (IR) region,a kind of biomimetic miniature IR imaging detection system (BMIRIDS) has been successfully developed.It is classified as a long wave IR(LWIR) system and a mid-wave IR(MWIR) one.The former consists of a LWIR fish-eye lens and a LWIR focal plane array (FPA)-biomimetic electronic module,the latter consists of a MWIR fish-eye lens and a MWIR FPA-biomimetic electronic module.Both can provide complete hemispherical staring field of view,and have the capability to determine target bearings,to remove all stationary scene clutter and only detect moving targets,to sense targets range and their velocity.The capability closely approximates the vision process performed in nature by biological sensors.Furthermore,an additional biomimetic module block has been integrated into BMIRIDS.The module block imitating the function of human vision produces the logarithmic brightness image,and enhances the target image outline by virtue of the Roberts gradient difference.The logarithmic transform permits expanding the dynamic range of optical incidence without saturating the electric circuit,and makes the image more suitable for watching.DSP and FPGA perform the aforesaid vision functions that are advantageous to detect and track targets.Therefore,BMIRIDS can perform more powerful real-time signal and image processing on the resulting image data than the ordinary previous systems mainly by the aid of "software-only" processing.Because BMIRIDS has a 2π-steradian (sr.) staring field-of-view,two of such systems opposed to one another would provide a complete view of space around the sensor platform.In addition,its low power consumption makes itself meet the manifold platforms' needs.The practice has proved that BMIRIDS can truly realize "omnidirectional" "real-time" situation awareness and dynamic information acquirement.By virtue of biomimetic technology,some limitations of the current photoelectric equipment have been broken and a new type of IR equipment has been developed.展开更多
The concept and advantage of reconfigurable technology is introduced. A kind of processor architecture of re configurable macro processor (RMP) model based on FPGA array and DSP is put forward and has been implemented...The concept and advantage of reconfigurable technology is introduced. A kind of processor architecture of re configurable macro processor (RMP) model based on FPGA array and DSP is put forward and has been implemented. Two image algorithms are developed: template-based automatic target recognition and zone labeling. One is estimating for motion direction in the infrared image background, another is line picking-up algorithm based on image zone labeling and phase grouping technique. It is a kind of 'hardware' function that can be called by the DSP in high-level algorithm. It is also a kind of hardware algorithm of the DSP. The results of experiments show the reconfigurable computing technology based on RMP is an ideal accelerating means to deal with the high-speed image processing tasks. High real time performance is obtained in our two applications on RMP.展开更多
基金supported by the National High-Tech Research & Development Program of China
文摘In order to realize omnidirectional real-time detection and awareness in thermal infrared (IR) region,a kind of biomimetic miniature IR imaging detection system (BMIRIDS) has been successfully developed.It is classified as a long wave IR(LWIR) system and a mid-wave IR(MWIR) one.The former consists of a LWIR fish-eye lens and a LWIR focal plane array (FPA)-biomimetic electronic module,the latter consists of a MWIR fish-eye lens and a MWIR FPA-biomimetic electronic module.Both can provide complete hemispherical staring field of view,and have the capability to determine target bearings,to remove all stationary scene clutter and only detect moving targets,to sense targets range and their velocity.The capability closely approximates the vision process performed in nature by biological sensors.Furthermore,an additional biomimetic module block has been integrated into BMIRIDS.The module block imitating the function of human vision produces the logarithmic brightness image,and enhances the target image outline by virtue of the Roberts gradient difference.The logarithmic transform permits expanding the dynamic range of optical incidence without saturating the electric circuit,and makes the image more suitable for watching.DSP and FPGA perform the aforesaid vision functions that are advantageous to detect and track targets.Therefore,BMIRIDS can perform more powerful real-time signal and image processing on the resulting image data than the ordinary previous systems mainly by the aid of "software-only" processing.Because BMIRIDS has a 2π-steradian (sr.) staring field-of-view,two of such systems opposed to one another would provide a complete view of space around the sensor platform.In addition,its low power consumption makes itself meet the manifold platforms' needs.The practice has proved that BMIRIDS can truly realize "omnidirectional" "real-time" situation awareness and dynamic information acquirement.By virtue of biomimetic technology,some limitations of the current photoelectric equipment have been broken and a new type of IR equipment has been developed.
文摘The concept and advantage of reconfigurable technology is introduced. A kind of processor architecture of re configurable macro processor (RMP) model based on FPGA array and DSP is put forward and has been implemented. Two image algorithms are developed: template-based automatic target recognition and zone labeling. One is estimating for motion direction in the infrared image background, another is line picking-up algorithm based on image zone labeling and phase grouping technique. It is a kind of 'hardware' function that can be called by the DSP in high-level algorithm. It is also a kind of hardware algorithm of the DSP. The results of experiments show the reconfigurable computing technology based on RMP is an ideal accelerating means to deal with the high-speed image processing tasks. High real time performance is obtained in our two applications on RMP.
