Focal Track: Depth and Accommodation with Oscillating Lens Deformation
Focal Track: Depth and Accommodation with Oscillating Lens Deformation
复制标题
焦点轨迹：具有振荡透镜变形的深度和调节
DOI：
10.1109/iccv.2017.110
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Zickler, Todd
中科院分区：
文献类型：
--
作者：
Guo, Qi;Alexander, Emma;Zickler, Todd
焦迹传感器是一种基于液膜透镜控制离焦的单目、计算效率高的深度传感器。它将微小的透镜振荡与光敏传感器同步，通过微分离焦产生实时深度图，并将这些振荡与较大的透镜变形相结合，使离焦工作范围适应于在大轴向距离上跟踪物体。为了创建焦轨迹传感器，我们推导了一组纹理不变的方程，当镜头的焦距发生差异时，这些方程将图像导数与场景深度联系起来。基于这些方程，我们设计了一个前馈计算序列：鲁棒地融合了多尺度的图像导数；生成信心图以及深度；并且可以端到端进行训练，以减轻噪声、畸变和其他非理想情况。我们的原型有1英寸的光学元件，可以在超过75厘米的轴向范围内以每秒100帧的速度生成深度和置信度地图。
The focal track sensor is a monocular and computationally efficient depth sensor that is based on defocus controlled by a liquid membrane lens. It synchronizes small lens oscillations with a photosensor to produce real-time depth maps by means of differential defocus, and it couples these oscillations with bigger lens deformations that adapt the defocus working range to track objects over large axial distances. To create the focal track sensor, we derive a texture-invariant family of equations that relate image derivatives to scene depth when a lens changes its focal length differentially. Based on these equations, we design a feed-forward sequence of computations that: robustly incorporates image derivatives at multiple scales; produces confidence maps along with depth; and can be trained end-to-end to mitigate against noise, aberrations, and other non-idealities. Our prototype with 1-inch optics produces depth and confidence maps at 100 frames per second over an axial range of more than 75cm.
焦流：通过散焦和微分运动测量距离和速度
DOI：
10.1007/978-3-319-46487-9_41
发表时间：
2016
期刊：
Proceedings of IEEE Computer Society Conference on Computer Vision and Pattern Recognition
影响因子：
--
作者：
Emma Alexander;Qi Guo;S. Koppal;S. Gortler;Todd E. Zickler
通讯作者：
Todd E. Zickler
液体光学：振荡透镜快速聚焦
影响因子：
35
作者：
C. Stan
通讯作者：
C. Stan
DOI：
10.1364/josaa.15.001777
发表时间：
1998
期刊：
Journal of the Optical Society of America. A, Optics, image science, and vision
影响因子：
--
作者：
H. Farid;Eero P. Simoncelli
通讯作者：
H. Farid;Eero P. Simoncelli