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42 results on '"gap fraction"'

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1. A field test of forest canopy structure measurements with the CanopyCapture smartphone application.

2. LiDAR Voxel-Size Optimization for Canopy Gap Estimation

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3. An improved estimate of leaf area index based on the histogram analysis of hemispherical photographs

4. Comparison of terrestrial LiDAR and digital hemispherical photography for estimating leaf angle distribution in European broadleaf beech forests.

5. Characterizing Olive Grove Canopies by Means of Ground-Based Hemispherical Photography and Spaceborne RADAR Data

6. Estimating light environment in forests with a new thresholding method for hemispherical photography.

7. Correction for light scattering combined with sub-pixel classification improves estimation of gap fraction from digital cover photography.

8. Specular reflection in the signal of LAI-2000 plant canopy analyzer.

9. Estimating Effective Leaf Area Index of Winter Wheat Using Simulated Observation on Unmanned Aerial Vehicle-Based Point Cloud Data

10. A new method to estimate clumping index integrating gap fraction averaging with the analysis of gap size distribution

11. Seasonal variation of leaf area index (LAI) over paddy rice fields in NE China: Intercomparison of destructive sampling, LAI-2200, digital hemispherical photography (DHP), and AccuPAR methods.

12. A New Method for Forest Canopy Hemispherical Photography Segmentation based on Deep Learning

13. Digital canopy photography: Exposed and in the raw.

14. The estimation of canopy attributes from digital cover photography by two different image analysis methods.

15. Model-based local thresholding for canopy hemispherical photography

16. Introducción a la fotografía hemisférica en ciencias forestales.

17. On the exposure of hemispherical photographs in forests.

18. CIMES: A package of programs for determining canopy geometry and solar radiation regimes through hemispherical photographs

19. LiDAR Voxel-Size Optimization for Canopy Gap Estimation.

20. Assessment of automatic gap fraction estimation of forests from digital hemispherical photography

21. Review of methods for in situ leaf area index determination: Part I. Theories, sensors and hemispherical photography

22. Comparing common methods for assessing understory light availability in shaded-perennial agroforestry systems

23. Canopy structure measurement by gap fraction analysis using commercial instrumentation.

24. Sky-canopy border length, exposure and thresholding influence accuracy of hemispherical photography for complex plant canopies

25. Effects of Tree Trunks on Estimation of Clumping Index and LAI from HemiView and Terrestrial LiDAR

26. Variability and bias in active and passive ground-based measurements of effective plant, wood and leaf area index

27. The estimation of canopy attributes from digital cover photography by two different image analysis methods

28. A New Method for Forest Canopy Hemispherical Photography Segmentation Based on Deep Learning.

29. Instantaneous and potential radiation effect on underplanted European beech below Norway spruce canopy

30. Characterizing Olive Grove Canopies by Means of Ground-Based Hemispherical Photography and Spaceborne RADAR Data

31. Sampling gap fraction and size for estimating leaf area and clumping indices from hemispherical photographs

32. Methodology comparison for slope correction in canopy leaf area index estimation using hemispherical photography

33. Determining digital hemispherical photograph exposure for leaf area index estimation

34. The effect of prescribed fire on gap fraction in an oak forest understory on the Cumberland Plateau1,2

35. Review of methods for in situ leaf area index (LAI) determination

36. Light regime beneath Sitka spruce plantations in northern Britain: preliminary results

37. Sky-canopy border length, exposure and thresholding influence accuracy of hemispherical photography for complex plant canopies.

38. Slope correction for LAI estimation from gap fraction measurements

39. Intercomparison and sensitivity analysis of Leaf Area Index retrievals from LAI-2000, AccuPAR, and digital hemispherical photography over croplands

40. Characterizing plant canopies with hemispherical photographs

41. PRISE EN COMPTE DE L'AGREGATION DES CULTURES DANS LA SIMULATION DU TRANSFERT RADIATIF : IMPORTANCE POUR L'ESTIMATION DE L'INDICE FOLIAIRE (LAI), DE LA PARCELLE AU PAYSAGE

42. Optical and thermal applications in grapevine (vitis vinifera L.) research - An overview and some novel approaches