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arXiv 1402.6932cs.CV
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彩色视频和深度的低成本压缩感知

Low-Cost Compressive Sensing for Color Video and Depth

Duke University(杜克大学)

Xin Yuan, Patrick Llull, Xuejun Liao, Jianbo Yang, Guillermo Sapiro, David J. Brady, Lawrence Carin

摘要:

对传统的现成彩色摄像机进行简单且廉价的(低功率和低带宽)修改,从该修改中,我们为每个原始测量帧恢复{多个}彩色帧,并且每个恢复的帧可以聚焦在不同的深度。对于每个测量帧的多个帧的恢复通过高速编码成为可能,通过单个编码孔径的平移来表现;廉价的平移通过将二进制代码安装在压电设备上来构成。为了同时恢复深度信息,经由可变电压以高速调制{液体}透镜。因此,在上述编码过程期间,液体透镜允许相机将焦点扫过多个深度。除了设计和实现的摄像头,快速恢复是通过一个随时算法利用小波/DCT系数的组稀疏性。

英文摘要:

A simple and inexpensive (low-power and low-bandwidth) modification is made to a conventional off-the-shelf color video camera, from which we recover {multiple} color frames for each of the original measured frames, and each of the recovered frames can be focused at a different depth. The recovery of multiple frames for each measured frame is made possible via high-speed coding, manifested via translation of a single coded aperture; the inexpensive translation is constituted by mounting the binary code on a piezoelectric device. To simultaneously recover depth information, a {liquid} lens is modulated at high speed, via a variable voltage. Consequently, during the aforementioned coding process, the liquid lens allows the camera to sweep the focus through multiple depths. In addition to designing and implementing the camera, fast recovery is achieved by an anytime algorithm exploiting the group-sparsity of wavelet/DCT coefficients.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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