"Interpolation"

Native Resolution Detection for 4K-UHD Videos

There are many resolution enhancement methods to produce 4K-UHD videos including interpolation and deep learning based Super-Resolution, but lack of details, aliasing and unnatural transition are still inevitable and affect viewer's immersive …

Compression Priors Assisted Convolutional Neural Network for Fractional Interpolation

Fractional interpolation has been extensively utilized in a series of video coding standards to generate fractional precision prediction to remove the temporal redundancy in consecutive frames. In the traditional interpolation filter based methods, …

Advanced CNN Based Motion Compensation Fractional Interpolation

Fractional-sample precision motion compensation has been widely adopted in a series of video coding standards to further improve compression efficiency. Usually, signal decomposition based interpolation filters are used to generate fractional samples …

Improved intra angular prediction with novel interpolation filter and boundary filter

In this paper, two improved intra angular prediction methods are proposed to enhance coding performance. The first method applies new four-tap interpolation filter algorithm. The reference samples at fractional position are interpolated by DCT-based …

Paralleling variable block size motion estimation of HEVC on CPU plus GPU platform

The emerging HEVC standard supports up to 12 variable block sizes ranging from 4×8/8×4 to 64×64 to conduct motion estimation (ME) and motion compensation (MC). This feature contributes considerable coding gain compared with 7 variable block sizes in …

Improving Lossless Intra Coding of H.264/AVC by Pixel-Wise Spatial Interleave Prediction

H.264/AVC adopts many directional spatial prediction models in block-based manner that neighboring pixels on the left and top sides yield prediction for the pixels in a data block to be encoded. However, such models may adapt poorly to the rich …

Image interpolation based on decomposition

This paper proposes a new approach for interpolating natural images. Unlike other conventional interpolation methods, we exploit the characteristics of an image and decompose it into a texture part and a non-texture (cartoon) part. In the non-texture …