公开(公告)号：US20180253896A1

公开(公告)日：2018-09-06

申请号：US15448591

申请日：2017-03-03

Applicant: Macau University of Science and Technology

Inventor： Zhanchuan CAI ,  Ting LAN

IPC: G06T17/30

CPC classification number: G06T11/00 ,  G06F17/175

Abstract: A method constructs an image with improved peak signal-to-noise ratio (PSNR) from a scattered pixel set. The method generates an approximation function that is a linear combination of a plurality of Many-Knot (MK) spline basis functions, and constructs the image with improved PSNR by conducting a least squares treatment on the approximation function to minimize a residual of each pixel value in the scattered pixel set from the approximation function.

公开(公告)号：US20190238314A1

公开(公告)日：2019-08-01

申请号：US15880566

申请日：2018-01-26

Applicant: Macau University of Science and Technology

Inventor： Zhanchuan CAI ,  Ting LAN

IPC: H04L9/06 ,  H04L29/06

CPC classification number: H04L9/0625 ,  H04L63/0428

Abstract: A method executed by a computer system that transmits a multimedia content through a negative-base number. The method includes generating a binary sequence for the multimedia content, converting the binary sequence into a negative-base number, receiving the negative-base number, retrieving a negative base of the negative base number, calculating the binary sequence based on the negative-base number and the negative base, and obtaining the multimedia content based on the binary sequence.

公开(公告)号：US20180270054A1

公开(公告)日：2018-09-20

申请号：US15458995

申请日：2017-03-15

Applicant: Macau University of Science and Technology

Inventor： Zhanchuan CAI ,  Ting LAN

IPC: H04L9/08 ,  G06F21/10

CPC classification number: G06F21/10 ,  G06F21/602

Abstract: A method improves information security by generating a key with which a first multimedia content is encrypted into a second multimedia content. The method generates a first representation for the first multimedia content and a second representation for the second multimedia content on a complex plane, and improves the information security by generating the key by determining a relationship between the first representation and the second representation on the complex plane such that the first multimedia content is encrypted into the second multimedia content with the relationship as the key.