| 1. | The theoretical and experimental results show that image quality can be improved by compensating thermal blooming in ir image
理论和实验结果表明，对红外图像的热晕补偿改善了图像的质量。 |
| 2. | Thermal blooming can be observed in ir images when ir detector operates for a long time or ir detector is directly illuminated by sun
摘要红外探测器工作时间长或太阳直射时，可观察到红外图像有热晕现象。 |
| 3. | High - power laser beam will be aberrated and gas flow field will be thermal bloomed when beam pass through the flow field
当强激光束通过超音速流场时，会受到流场的干扰，而且流场参数也会由于强激光束的辐射加热产生变化。 |
| 4. | The influence of thermal blooming on ir image quality is relative severe when brightness or contrast of the ir detector observed scenery is very low
红外探测器观察的景物亮度或对比度通常很低，此时热晕对红外像质的影响比较严重。 |
| 5. | In accordance with the above case , real - time background compensation against ir image for eliminating influence of thermal blooming can be carried out by using digital image processing methods such as frame subtraction and reversed color addition
针对上述情况，研究用数字图像处理的方法帧相减、反色相加，对红外图像进行实时背景补偿，以便消除热晕的影响。 |
| 6. | The effects of air ' s absorption of heat , scatter , turbulent and thermal blooming on the laser beam transmitting under the air breakdown threshold value are analysed when laser transmit in the air and the result can be used designing of the laser system
摘要系统分析了激光在大气中传输时在击穿阈值以内，由于大气汽溶胶的吸收、散射、大气湍流、大气热晕等线性非线性问题对光束控制系统的影响，为激光系统提供指导。 |
| 7. | The thesis also discusses the thermal blooming and physical of the heat halo produced by intense laser . the thesis emphasizes on otf and psf of atmospheric turbulence . taking three screen systems as the example , we get the ideal approximation model , especially the short - exposure otf
并介绍了强激光产生热晕的理论模型及其物理特性机理，重点介绍湍流大气的otf和psf ，以三种屏系统为例，得到湍流大气的理想近似模型，特别是短曝光otf 。 |
