[1] LIU Daizhong, XU Renfang, FAN Dianyuan. Evolution of beam automatic alignment system in laser-fusion facility[J]. Laser & Optoelectronics Progress, 1-5(2004).

[2] YING J, HE Y, ZHOU Z. High speed gradient Hough transform algorithm for laser spot location[C], 6625, 152-157(2008).

[3] RAMTEKE R, MONALI K Y. Automatic medical image classification and abnormality detection using k-nearest neighbour[J]. International Journal of Advanced Computer Research, 2, 190(2012).

[4] SHI Y, CHENG X. Laser spot center detection based on the geometric feature[C], 322-325(2010).

[5] GUO Jiafu, WANG Zhengzhou, DUAN Yaxuan et al. An optical path automatic alignment method based on dual-target recognition and improved alignment mathematical model[J]. Acta Photonica Sinica, 51, 1114006(2022).

[6] JIANG G, ATTIYA S, OCVIRK G et al. Red diode laser induced fluorescence detection with a confocal microscope on a microchip for capillary electrophoresis[J]. Biosensors and Bioelectronics, 14, 861-869(2000).

[7] SCHRAMM N U, EBEL G, ENGELAND U et al. High-resolution SPECT using multipinhole collimation[J]. IEEE Transactions on Nuclear Science, 50, 315-320(2003).

[8] BOERSCH I, FÜSSEL U, GRESCH C et al. Data mining in resistance spot welding: a non-destructive method to predict the welding spot diameter by monitoring process parameters[J]. The International Journal of Advanced Manufacturing Technology, 99, 1085-1099(2018).

[9] GIRSHICK R, DONAHUE J, DARRELL T et al. Rich feature hierarchies for accurate object detection and semantic segmentation[C], 8-13(2014).

[10] BROMAGE J, BAHK S W, IRWIN D et al. A focal-spot diagnostic for on-shot characterization of high-energy petawatt lasers[J]. Optics Express, 16, 16561-16572(2008).

[11] TIAN Haonan, LI Sumei. Objective evaluation method for image quality based on edge structure similarity[J]. Acta Photonica Sinica, 42, 110-114(2013).

[12] WANG Zhengzhou, WANG Wei, HU Bingliang et al. Design and implementation of integrated diagnostic beam fast automatic alignment system[J]. Acta Photonica Sinica, 43, 0512005(2014).

[13] Zhengshang DA, LI Dongjian, ZHOU Wei et al. Mathematical model for beam automatic fast alignment[J]. Acta Photonica Sinica, 37, 2534-2538(2008).

[14] ZHANG Yujin[M]. Image project, image analysis, 222-223(2005).

[15] JAIN A K[M]. Fundamentals of digital image processing(1989).

[16] WANG Zhengzhou, GUO Jiafu, WANG Li et al. A multiple optical target recognition method based on blob region quantitative feature statistics[P]. China.