基于多尺度V1-MT前馈模型的光流计算方法

针对在大位移、弱纹理等情况下光流信息计算误差较大的问题,提出一种基于改进V1-MT前馈模型的光流计算方法。以视频序列作为输入,分别计算初级视皮层和中颞叶（MT）细胞的响应,分解MT细胞的响应得到光流信息。采用多尺度和由粗到精的方法,解决大位移情况下的光流计算问题,采用基于双边滤波的插值方法,融合邻域运动信息,以估计弱纹理区的光流信息。仿真结果表明,与其他基于生物模型的计算方法相比,该方法能更为精确地计算光流信息。...

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Bibliographic Details
Published in计算机工程 Vol. 43; no. 9; pp. 205 - 209
Main Author 张文达 许悦雷 马时平 李帅 邹洪中
Format Journal Article
LanguageChinese
Published 空军工程大学航空航天工程学院,西安,710038 2017
Subjects
光流
双边滤波
多尺度
大位移
运动信息
光流
movement information
multi-scale
large displacement
运动信息
optical flow
双边滤波
多尺度
大位移
bilateral filtering
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ISSN1000-3428
DOI10.3969/j.issn.1000-3428.2017.09.036

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Summary:针对在大位移、弱纹理等情况下光流信息计算误差较大的问题,提出一种基于改进V1-MT前馈模型的光流计算方法。以视频序列作为输入,分别计算初级视皮层和中颞叶（MT）细胞的响应,分解MT细胞的响应得到光流信息。采用多尺度和由粗到精的方法,解决大位移情况下的光流计算问题,采用基于双边滤波的插值方法,融合邻域运动信息,以估计弱纹理区的光流信息。仿真结果表明,与其他基于生物模型的计算方法相比,该方法能更为精确地计算光流信息。
Bibliography:31-1289/TP
optical flow;movement information;large displacement;multi-scale;bilateral filtering
ZHANG Wenda,XU Yuelei,MA Shiping,LI Shuai,ZOU Hongzhong （Institute of Aeronautics and Astronautics Engineering, Air Force Engineering University,Xi＇an 710038 ,China）
In order to solve the problem of great computational error of optical flow information under large displacement and weak texture, an optical flow computational method based on an improved V1-MT feedforward model is proposed. By taking video sequences as inputs,the responses of cells in primary visual cortex and Middle Temporal（ MT）are calculated. The optical flow information can be obtained by decomposing MT response. The multi-scale and coarse to fine methods are used to solve the optical flow computational problem under large displacement. The interpolation method based on bilateral filtering is adopted, so that neighborhood motion information can be fused and the the optical flow information in the weak texture region can be estimated. Simulation resul
ISSN:1000-3428
DOI:10.3969/j.issn.1000-3428.2017.09.036