Optimizing JPEG quantization table for low bit rate mobile visual search.
Ling-Yu DuanXiangkai LiuJie ChenTiejun HuangWen GaoPublished in: VCIP (2012)
Keyphrases
- low bit rate
- quantization table
- discrete cosine transformation
- image quality
- jpeg images
- image compression
- bit rate
- adaptive quantization
- visual quality
- video compression
- compression algorithm
- coded images
- shape coding
- lossy compression
- coding method
- step size
- peak signal to noise ratio
- compression ratio
- bitstream
- reconstructed image
- video conferencing
- blocking artifacts
- video codec
- human visual system
- quality assessment
- video encoder
- image data
- multiscale
- high frequency
- video coding
- subband
- motion estimation
- multiresolution