TR2003-29

Adaptive Field/Frame Selection for High Compression Coding


    •  Zhang, X.M., Vetro, A., Sun, H., Shi, Y.-., "Adaptive Field/Frame Selection for High Compression Coding", SPIE Conference on Image and Video Communications and Processing, January 2003, vol. 5022, pp. 583-593.
      BibTeX TR2003-29 PDF
      • @inproceedings{Zhang2003jan,
      • author = {Zhang, X.M. and Vetro, A. and Sun, H. and Shi, Y.-Q.},
      • title = {Adaptive Field/Frame Selection for High Compression Coding},
      • booktitle = {SPIE Conference on Image and Video Communications and Processing},
      • year = 2003,
      • volume = 5022,
      • pages = {583--593},
      • month = jan,
      • url = {https://www.merl.com/publications/TR2003-29}
      • }
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  • Research Area:

    Digital Video

Abstract:

In practice, interlaced video sequences are typically coded with either a frame-only or field-only structure, irrespective of the content. However, coding in this way will not provide the best coding efficiency. This paper proposes an adaptive picture-level field/frame coding scheme with corresponding rate control. First, a two-pass field/frame decision scheme is proposed. In this scheme, we formulate the field/frame decision as a constrained optimization problem. The actual rate and distortion data are collected and the optimal picture-level coding decision is determined based on this data. An effective rate control for the proposed two-pass algorithm is also presented. However, since the complexity of the two-pass scheme is relatively large since motion estimation must be performed for both the frame-based picture and the field-based picture, we also propose a one-pass field/frame decision scheme. This one-pass scheme calculates the variance of each macroblock in a field and estimates the correlation between two fields. Based on the correlation, a decision to code the picture as a frame or as fields is made. A rate control method for the proposed one-pass scheme is also presented. Simulation results demonstrate that our scheme outperforms frame-only and field-only coding for several sequences coded at a wide range of bit-rates, and the proposed one-pass scheme obtains similar performance as the proposed two-pass scheme.

 

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