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| Titel: |
Hardware principles for the design of a stereo-matching state machine |
| Auteur: |
J. A. Kalomiros J. Lygouras |
| Verschenen in: |
Journal of engineering science and technology review |
| Paginering: | Jaargang 1 (2008) nr. 1 pagina's 19-24 |
| Jaar: |
2008 |
| Inhoud: |
This paper presents basic design principles for hardware implementation of a two-pass stereo-matching algorithm based on dynamic programming. For the first-pass a state-machine is proposed for the recursive calculation of the cost-function. The state-machine works along the diagonal of a 2-D disparity space for each epipolar pair of image scan-lines. On-chip local RAM stores tags that denote the minimum transition cost to every point in the disparity space among possible costs from all three neighboring points. All calculations are within a pre-determined useful disparity range. For the second pass, hardware rules are presented that produce the correct disparity per pixel, by backtracking stored cost values. Hard-ware stages are structured along a fully parallel pipeline, that outputs disparities in step with the input serial pixel stream at clock rate. |
| Uitgever: |
Education Institute of Kavala |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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