AN ARTIFACT REDUCTION METHOD FOR BLOCK-BASED VIDEO CODING

Yıl 2020, Cilt: 62 Sayı: 1, 1 - 13, 30.06.2020

Hakki Alparslan Ilgın , Ahmet Akbulut

https://doi.org/10.33769/aupse.657684

Cited By: 1

Öz

Most of the image/video coding standards are based on discrete cosine transform which is a block-based coding scheme with a disadvantage of blocking effects at low bit rates. In this paper, we propose a hybrid method which consists of downsampling/upsampling, significance map coding and local cosine transform to reduce the disadvantage of lossy compression and is also compatible with current standards. Experimental results show that performance of the proposed method is better than the conventional approaches.

Anahtar Kelimeler

Local cosine transform, significance map coding, image compression, video coding

Kaynakça

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