A Special Class of Multiple Description Scalar Quantizers Conference Paper uri icon

abstract

  • We introduce a special class of Multiple Description Scalar Quantizer (MDSQ), which will be referred to as the Modified MDSQ (MMDSQ). MMDSQ features simple implementations and an efficient central-side distortion trade-off control mechanism. These advantages make it suitable for multiple description image and video coding systems: the simplicity of MMDSQ facilitates the incorporation of multiple description coding into existing coding systems. Analysis shows that this class of MDSQ can achieve the same asymptotic high-rate performance as entropy-constrained MDSQs with uniform central quantizers, for sources with smooth pdfs. The performance of MMDSQ on a unit-variance Gaussian i.i.d. source is compared with that of entropy-constrained MDSQ at different rates numerically, and the results confirm the satisfactory performance of MMDSQ at rates above 3 bps/description. Application of MMDSQ to image coding also shows promising results. 2004 IEEE.

name of conference

  • Manufacturing Engineer

published proceedings

  • Manufacturing Engineer

author list (cited authors)

  • Tian, C., & Hemarni, S. S.

complete list of authors

  • Tian, Chao||Hemarni, Sheila S

publication date

  • January 1, 2004 11:11 AM