Conference
A Study on Quantization Effects of DCT Based Compression
Abstract
Quantization in discrete cosine transform (DCT) domain is a widely used lossy compression technique in international multimedia compression standards from audio (e.g., MP3) to image (e.g., JPEG) to video (e.g., H.264). Unlike many degradation sources, like sensor noises, quantization errors of DCT coefficients are signal dependent and difficult to isolate and remove, causing serious artifacts in decompressed and post-processed signals. In this …
Authors
Shu X; Wu X; Liu B
Pagination
pp. 3500-3504
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Publication Date
January 1, 2017
DOI
10.1109/icip.2017.8296933
Name of conference
2017 IEEE International Conference on Image Processing (ICIP)