Brinks Gilson & Lione
Image interpolation method and device based on autoregressive model
An image interpolation method and device based on an autoregressive model. The method first, interpolating a low-resolution image up to a target scale to obtain an interpolated image M; determining a local area W in the image M to be interpolated, establishing two autoregressive models for each pixel point in the local area W except for the edge pixel points, and determining an initial objective function F0 according to the autoregressive models; down sampling the local area W except for the edge pixel points to the same size as the low-resolution image to obtain a local area W′, subtracting a corresponding area in the low-resolution image from W′ one pixel value by one pixel value, and adding the result to the initial objective function F0 to obtain an objective function F; performing iteration on the objective function F to obtain a pixel point value of a center block of W.
PEKING UNIVERSITY FOUNDER GROUP CO. LTD. BEIJING FOUNDER ELECTRONICS CO., LTD.
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additional inventional inventional
Jiaying Mading Jie Zongming
Liu Li Ren Guo