|
| << vorige | volgende >> |
Tijdschrift beschrijving
Alle jaargangen van het bijbehorende tijdschrift
Alle afleveringen van het bijbehorende jaargang
Alle artikelen van de bijbehorende aflevering
Details van artikel 3 van 19 gevonden artikelen
| Titel: |
Content Adaptive True Motion Estimator for H.264 Video Compression |
| Auteur: |
J. Huska P. Kulla |
| Verschenen in: |
Radioengineering |
| Paginering: | Jaargang 16 (2007) nr. 4 pagina's 68-75 |
| Jaar: |
2007 |
| Inhoud: |
Content adaptive true motion estimator for H.264 video coding is a fast block-based matching estimator with implemented multi-stage approach to estimate motion fields between two image frames. It considers the theory of 3D scene objects projection into 2D image plane for selection of motion vector candidates from the higher stages. The stages of the algorithm and its hierarchy are defined upon motion estimation reliability measurement (image blocks including two different directions of spatial gradient, blocks with one dominant spatial gradient and blocks including minimal spatial gradient). Parameters of the image classification into stages are set adaptively upon image structure. Due to search strategy are the estimated motion fields more corresponding to a true motion in an image sequence as in the case of conventional motion estimation algorithms that use fixed sets of motion vector candidates from tight neighborhood. |
| Uitgever: |
Spolecnost pro radioelektronicke inzenyrstvi (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 3 van 19 gevonden artikelen
| << vorige | volgende >> |