Performance analysis of opto-mechatronic image stabilization for a compact space camera

Image rotation and translation measurement based on joint transform correlator

“…But during the long exposure time, the image quality may be affected by the vibration, thus translation and rotation may result in image motion blur. It is necessary to stabilize the imaging system to improve the resolution of imaging [1][2][3].…”

“…Many researchers studied motion measurement with only translation, such as gray projection algorithm [6], phase correlation algorithm [7], block matching algorithm [8], optical flow algorithm [9] and etc. Janschek [1][2][3][10][11][12] proposed exploiting joint transform correlator (JTC) to determine the offset between imaging devices and principle axis in order to compensate the blurred images caused by translation in real-time. Qian proposed real-time image stabilization for arbitrary motion blurred image based on opto-electronic hybrid joint transform correlator [13].…”

Optical Correlator based Optical Flow Processor for Real Time Visual Navigation

“…Optical processing thus allows unique real time processing performances of high frame rate video streams. This advanced technology and its applications have been studied during last years at the Institute of Automation of the Technische Universität Dresden , Janschek et al, 2004a, Janschek et al, 2007. Different hardware models have been manufactured, e.g.…”

Design of the Active Optical Compensation Movements for Image Stabilization of Small Satellite

“…따라서, 소형 위성의 영상안정화는 공간과 무게 의 한계를 극복하면서 비용 및 성능면에서 효과 적인 방법을 적용하는 것이 필요하다. 이런 측면 에서 위성의 운동과 영상센서가 있는 초점면부 의 운동을 분리시키는 초점면부 영상안정화 기법 은 다른 방법에 비해 무게가 가벼운 구성요소를 움직여 주기 때문에 소형 위성카메라에 적용하기 매우 효과적인 방법이라고 할 수 있다 [2][3][4][5].…”