IMAGE COMPRESSION SAMPLING METHOD AND ASSEMBLY

WIPO Patent Application WO/2022/110867

A1

An image compression sampling method and assembly. In the present application, the method comprises: performing sparse representation on a target image by using an initial sparse matrix, then quantifying a sparse representation initial result to obtain a sparse representation optimization result, and accordingly, obtaining an optimized sparse matrix; constructing a product matrix by using the optimized sparse matrix and an initial measurement matrix, and adjusting absolute values of off-diagonal elements in the product matrix to be smaller than a correlation threshold value; performing singular value decomposition on the product matrix to obtain a diagonal matrix and a left singular matrix, and updating the diagonal matrix according to the number of samplings of the initial measurement matrix; and optimizing the initial measurement matrix by using the left singular matrix and the updated diagonal matrix to obtain an optimized measurement matrix, and acquiring image data by using the optimized sparse matrix and the optimized measurement matrix. According to the present application, the sparse matrix and the measurement matrix are optimized, complex images can be sampled, and the recovery effect is good.

GE YUAN (CN)
SHI HONGZHI (CN)
ZHAO JIAN (CN)

PCT/CN2021/109503

June 02, 2022

July 30, 2021

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INSPUR SUZHOU INTELLIGENT TECHNOLOGY CO LTD (CN)

H04N19/126; H04N5/268; H04N19/132; H04N19/625; H04N19/63; H04N19/88

CN112511824A	2021-03-16
CN109756740A	2019-05-14
CN111817723A	2020-10-23
CN107516301A	2017-12-26
CN103413331A	2013-11-27
US6067384A	2000-05-23

UNITALEN ATTORNEYS AT LAW (CN)

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