SPIE Proceedings [SPIE Selected Proceedings of the Photoelectronic Technology Committee Conferences held July-December 2013 - SuZhou, China (Sunday 20 October 2013)] Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics: Optical Imaging, Remote Sensing, and Laser-Matter Interaction 2013 - Analysis the application of several denoising algorithm in the astronomical image denoising