Abstract
A simple technique is described whereby view-factors can be estimated for a person at locations where the building geometry is complex. Procedures are outlined for the construction of a polar diagram whose grid cells give equal person view-factors: the diagram is designed to overlay a fish-eye lens photograph, enabling the estimation of view-factors of distinctive surfaces in the photograph image for standing and seated people.
Similar content being viewed by others
References
Anderson MC (1964) Studies of the woodland light climate. J Appl Ecol 52:27–41
Burden RL, Faires JD (1985) Numerical analysis. Prindle, Weber and Schmidt, Boston
Bonhomme R, Chartier P (1972) The interpretation and automatic measurement of hemispherical photographs to obtain sunlit foliage area and gap frequency. Israel J Agric Res 22:53–61
Dunkle RV (1963) Configuration factors for radiant heat transfer calculations involving people. J Heat Transfer 83:71–76
Fanger PO (1970) Thermal comfort: Analysis and applications of environmental engineering. Danish Technical Press, Copenhagen
Johnson GT, Watson ID (1984a) Person view-factors in the urban environment. Arch Meteorol Geophys Bioklim [B] 34:273–285
Johnson GT, Watson ID (1984b) The determination of view-factors in urban canyons. J Climate Appl Meteorol 23:329–335
Johnson GT, Watson ID (1985) Modelling longwave radiation exchange for complex shapes. Boundary Layer Meteorol 33:363–378
Johnson GT, Watson ID (1987) Modelling person-shapes for thermal comfort studies. Int J Biometeorol 31:33–43
Madgwick HAT, Brumfield GL (1969) The use of hemispherical photographs to assess light climate in the forest. J Ecol 57:537–542
McArthur LB, Hay JE (1978) On the anisotrophy of diffuse solar radiation. Bull Am Meteorol Soc 59:1442–1443
Steyn DG (1980) The calculation of view factors from fisheye lens photographs. Atmos Ocean 18:254–258
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Watson, I.D., Johnson, G.T. Estimating person view-factors from fish-eye lens photographs. Int J Biometeorol 32, 123–128 (1988). https://doi.org/10.1007/BF01044905
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01044905