This paper proposes a novel low-complexity block-based global motion estimation algorithm for real-time digital video processing applications. The algorithm involves an 8×8 block-based local motion estimation followed by a least square method to obtain the global motion vector parameters. The translation-zoom global motion model with 3 parameters was adopted and least square method computation is done after removing outliers. Blocks are considered outliers if: (i) the block is over-cluttered or (ii) the reference block has too little activity for an accurate motion vector to be estimated. The algorithm is used to estimate the global motion of 3 QCIF test streams at 10 fps and the parameters are used in 5 typical applications Respective simulations have produced favorable results emphasizing the usefulness of the proposed algorithm.
|Translated title of the contribution||Rapid block-based global motion estimation and its applications|
|Title of host publication||International Conference on Consumer Electronics, 2002 (ICCE 2002)|
|Publisher||Institute of Electrical and Electronics Engineers (IEEE)|
|Pages||228 - 229|
|Number of pages||2|
|Publication status||Published - Jun 2002|
|Event||International Conference on Consumer Electronics, 2002 (ICCE 2002) - , United States|
Duration: 1 Jun 2002 → …
|Conference||International Conference on Consumer Electronics, 2002 (ICCE 2002)|
|Period||1/06/02 → …|
Bibliographical noteRose publication type: Conference contribution
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