휴대용 열 영상 관측 장비를 위한 전자적 영상 안정화 = Electronic Image Stabilization for Portable Thermal Image Camera

다국어 초록 (Multilingual Abstract)

Electronic Image Stabilization(EIS) is widely used as a technique for correcting a shake of an image. The case requiring the EIS function has been increased in high magnification thermal image observation on portable military equipment. Projection Algorithm(PA) for EIS is easy to implement but its performance is sensitive to the projection area. Especially, projection profiles of thermal image have very modest change and are difficult to extract image shifts between frames. In this paper, we proposed algorithm to extract a feature image for the thermal image and compared Block Matching Algorithm(BMA) with PA using our proposed feature image. When using our proposed feature image, BMA was simply implemented using FPGA's internal small memory. And we were able to obtain 30 % PSNR improved results compared to PA.

참고문헌 (Reference)

1 유신, "차량용 비전 시스템을 위한 영상 안정화에 관한 연구" 한국정보통신학회 15 (15): 957-964, 2011

2 Yin Bin, "Image Stabilization by Combining Gray-Scale Projection and Block Matching Algorithm" 1 : 1262-1266, 2009

3 Sung-Jea Ko, "Fast Digital Image Stabilizer based on Gray-Coded Bit-Plane Matching" 45 (45): 598-603, 1999

4 A Aysun Yeni, "Fast Digital Image Stabilization using One Bit Transform Based Sub-Image Motion Estimation" 51 (51): 917-921, 2005

5 Y. A. Al-Najjar, "Comparison of Image Quality Assessment: PSNR, HVS, SSIM, UIQI" 3 (3): 2229-5518, 2012

6 Weiping Yang, "A Real-Time Gray Projection Algorithm for Electronic Image Stabilization" 81932G : 2011