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Abstract:
In order to reduce the amount of video data that needs to be acquired greatly, state-of-the-art of the image-based rendering (IBR) method maps the dense viewpoint information into the original signal in the compressed sensing frame and utilizes sparse viewpoint images as random measurement information. However, the low-dimensional measurement signals are linearly combined using all of the dense viewpoint information, and the sparse viewpoint images only originate from partial viewpoint information, which results in the images acquired by the sparse viewpoints are inconsistent with the low-dimensional measurement signal. A sparse viewpoint measurement matrix is proposed, and an interval sampling matrix is used to align the sampling positions between the measured values and sparse viewpoint image information. Then, we constrain the sensing matrix, which consists of the measurement matrix and basis function, to satisfy the restricted isometry property as much as possible. Finally, the unique solution of the original signal can be obtained. The simulation results show that compared with conventional methods, the proposed method improves the subjective and objective quality for scene reconstruction with different levels of complexity. Copyright © 2021 Acta Automatica Sinica. All rights reserved.
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Acta Automatica Sinica
ISSN: 0254-4156
Year: 2021
Issue: 4
Volume: 47
Page: 882-890
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count: 1
ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0
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