Near Bomb Target Intersection Test Based On Binocular Vision

The relevant parameters during the missile target rendezvous process are important data support for evaluating weapon performance.Traditional methods for measuring missile target rendezvous cannot meet the requirements of equipment flexibility and parameter visualization,and measurement has limitations.On the basis of the currently studied measurement methods for missile target rendezvous,the principle of binocular stereo vision and the specific application of area array CCD in the missile target rendezvous measurement system are studied,in order to obtain more advantageous measurement methods.The main research content of this thesis is as follows:1)Establish a binocular vision based model for missile target rendezvous testing,and derive the error transfer function of the missile target rendezvous measurement system based on the measurement principle and basic station layout method of binocular vision.Under the premise of following the basic station layout principle of the missile target rendezvous measurement system,analyze the impact of the area array CCD station layout method on the measurement results,and optimize the station layout method of the missile target rendezvous measurement system based on binocular vision.2)In view of the low brightness of the test scene,combining the advantages of Retinex algorithm and histogram equalization,the high frequency components of the original image are fused with the enhanced image.In response to the high brightness of the experimental scene,the brightness channel of the original overexposed image was corrected based on fuzzy theory,and fused with the gamma corrected image to restore the invisible image details in the overexposed area,maximizing the preservation of original image information and improving the quality of the original image.3)Image processing and recognition of small target sequences of projectiles.In response to the small volume and dim brightness of projectile targets,and considering the complex environmental background and other practical situations,combined with the advantages of background difference method and frame difference method,the target detection algorithm is improved to more fully recognize projectile targets.Utilize the dilation algorithm to obtain bullet targets with more circular features,and use the centroid method to obtain the bullet centroid,laying the foundation for subsequent parameter solving.4)Research on simulation experiments and parameter calculation of missile target rendezvous.A missile target rendezvous measurement system was built using comprehensive laboratory equipment and simulated experimental data collection was conducted.A mathematical model was established for the parameters related to the rendezvous process,such as operating speed,trajectory,and miss distance.The calculation results were analyzed,and potential sources of errors were analyzed.The testing results show that the built missile target rendezvous measurement system meets the accuracy requirements;The improved image processing algorithm can better preserve detailed information compared to traditional image processing algorithms.A standardized target detection process can obtain clear small projectile targets in complex backgrounds.Simulation experiments have verified the feasibility and effectiveness of the missile target rendezvous measurement system,and the relevant parameters obtained are in line with the actual situation.