| タイトル | Feasibility of automated dropsize distributions from holographic data using digital image processing techniques |
| 著者（英） | Feinstein, S. P.; Girard, M. A. |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 1979-01-01 |
| 言語 | eng |
| 内容記述 | An automated technique for measuring particle diameters and their spatial coordinates from holographic reconstructions is being developed. Preliminary tests on actual cold-flow holograms of impinging jets indicate that a suitable discriminant algorithm consists of a Fourier-Gaussian noise filter and a contour thresholding technique. This process identifies circular as well as noncircular objects. The desired objects (in this case, circular or possibly ellipsoidal) are then selected automatically from the above set and stored with their parametric representations. From this data, dropsize distributions as a function of spatial coordinates can be generated and combustion effects due to hardware and/or physical variables studied. |
| NASA分類 | INSTRUMENTATION AND PHOTOGRAPHY |
| レポートNO | 79A19653
AIAA PAPER 79-0297 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/428827 |
