PVI: Perpendicular Vegetation Index

In VegSpecIndex: Vegetation and Spectral Indices for Environmental Assessment

Perpendicular Vegetation Index

Description

The use of the PVI is based on the formula originally developed by Richardson and Wiegand in 1977. Sensitive to the atmospheric variations, the PVI is intended to monitor the productivity of range, forest, and croplands. Similar to DVI, it measures the perpendicular distance of the pixels from the soil line, since it is based on the assumption that soil reflectance supplies the background signal of the vegetated surfaces (Richardson & Wiegand, 1977).

Usage

PVI (NIR, RED, s, a, b)

Arguments

NIR	Near-infra red spectral band
RED	Red spectral band
s	Soil adjacent factor
a	intercept of NIR Vs RED data
b	slope of NIR Vs RED data

Value

Perpendicular Vegetation Index

References

Richardson, A. J., & Wiegand, C. L. (1977). Distinguishing Vegetation from Soil Background Information. Photogramm. Eng. Remote Sens., 43, 1541–1552.

Examples

PVI (0.14628, 0.061663, 0.08, 0.310932791, 0.294346983)

VegSpecIndex documentation built on April 4, 2025, 4:28 a.m.