舞蹈技术动作与音乐匹配优化仿真

摘要

对舞蹈技术动作与音乐进行合理匹配,可提高舞台和音乐的契合度.进行舞蹈技术动作与音乐匹配时,应得到多个长度较短的动作-音乐片段组合,对每步获得的节拍预测位置进行节拍对齐,计算出舞蹈动作-音乐片段之间的相关性系数,但是传统方法通过获取音乐和舞蹈底层的风格底层特征,并提取音乐舞蹈底层特征进行相关性分析去除冗余特征对完成匹配,但是不能对动作-音乐片段组合进行提取,无法进行节拍对齐和舞蹈动作-音乐系数计算,导致匹配舞蹈动作与音乐变化同步性较差.提出一种基于蚁群理论的舞蹈技术动作与音乐匹配优化方法.上述方法先融合于音乐节拍提取理论对同步的舞蹈动作和音乐数据进行分划,得到多个长度较短的动作-音乐片段组合,对音乐片段进行突变点检测,对每步获得的节拍预测位置进行节拍对齐,计算出舞蹈动作-音乐片段之间的相关性系数,得到舞蹈动作匹配优化目标函数,结合蚁群理论对目标函数进行优化求解,将音乐编舞中全部音乐-舞蹈动作片段按照信息素浓度自适应调整信息素挥发因子,依据舞蹈动作匹配优化解的优劣性动态更新信息素,由此完成舞蹈技术动作与音乐匹配优化.仿真结果表明,所提方法能够充分体现音乐与动作变化的同步性,并且优化的舞蹈动作匹配方法匹配的音乐-舞蹈匹配质量较优.%A matching optimization method between dancing technique movement and music is proposed based on the ant colony theory.Firstly,the synchronous dancing movement and music data integrated with the music beat extraction theory is divided,and the movement-music fragment combination with shorter length is obtained.Then,the mutational site detection for the music fragment and beat aligning for the obtained beat prediction position in each step are obtained to work out the correlation coefficient between dancing movement and music fragment.Moreover,the optimization objective function of dancing movement matching and the optimization solution for the objective function integrated with ant colony theory are obtained.Finally,the evaporation factor of pheromone is adjusted adaptively according to the pheromone concentration in all music-dancing movement fragment of music choreography and the pheromone is updated dynamically according to the optimization solution of dancing movement matching.Thus,the matching optimization between dancing technique movement and music is completed.The simulation results show that the method can reflect the synchronism between music and movement variation.The optimized dancing movement matching method has good matching quality of music and dancing.