基于双光路差分测量的运动训练图像模糊去重算法研究  

Research on blur deduplication algorithm of sports training image based on dual optical path difference measurement

作　　者：肖丽娜 吴小彬[1] XIAO Lina;WU Xiaobin(Chengdu Sport University,Chengdu 610041,China)

机构地区：[1]成都体育学院,成都610041

出　　处：《激光杂志》2020年第9期132-136,共5页Laser Journal

基　　金：国家自然科学基金(No.51347103);四川省教育厅项目(No.15SB0149)。

摘　　要：针对相似运动训练图像占用大量存储空间缺陷,研究基于双光路差分测量的运动训练图像模糊去重算法。该方法主要是将彩色图像利用RGB转化至灰度图像,利用分块离散余弦变换获取各分块离散余弦系数矩阵,生成感知哈希序列。基于图像单色平行光投射光强与入射光强间关系,利用光纤准直镜作为双光路差分测量输入镜与输出镜,通过相应输出镜耦合后发送至输出光纤,利用输出端准直镜将光纤传输光扩束后并发送至探测器实现光电转换。实验结果表明,采用该算法对数据库中游泳训练图像模糊去重,能够在300 ms之内完成,而且其检测的准去率及去重率均高达97%以上,表明此方法可将信噪比较低图像有效去除,具有较高的应用性能。Aiming at the defect of similar sports training images occupying a large amount of storage space,a fuzzy deduplication algorithm based on difference measurement of dual optical path is studied.The color image is transformed to gray image by RGB,and the discrete cosine coefficient matrix of each block is obtained by discrete cosine transform of block,and the perceptual hash sequence is generated.Based on the relationship between the intensity of light projected by monochromatic parallel light and the intensity of incident light,the optical fiber collimation mirror is used as the differential measurement input mirror and output mirror of dual optical path,which is coupled to the corresponding output mirror and sent to the output fiber.The output collimator is used to transmit optical fiber to the detector and then send it to the detector for photoelectric conversion.The attenuation coefficient of image measurement area can be obtained by using the difference measurement of dual optical paths,and the similarity of hash sequence values among images can be perceived through attenuation coefficient.The 20 images in a swimming training database are selected as the experimental objects,and the experimental results show that the algorithm can effectively remove the low-signal-to-noise images and achieve high application performance.

关 键 词：双光路差分测量 运动训练 图像 模糊去重 感知哈希序列 光纤传输 

分 类 号：TN27[电子电信—物理电子学]