Vegetation Mapping in the SHIFT Domain

Old Versions

Version 0 here.

The Data

Base directory: SedgwickShare_FrankDan > SHIFT_VegMap

Current Files:

• Data in 'v1_data' subfolder

• Initial products in 'v0_S2_GrassSegmentation' subfolder

Figures

Overview - Tritemporal Composite

Below. Red = May 2022; Green = January 2022; Blue = September 2021. SMA V fraction.

Masking

Flightline Mask below.

Field Boundary Mask below.

Urban Mask below.

Cumulative mask below, with red box to indicate spatial subset used moving forward.

Simple Temporal Mixture Model

Feature Space Below. Red = PC 1, green = PC 2, blue = PC 3.

Annual, evergreen, deciduous, null (unvegetated) endmembers in top center.

Additional annual endmembers from PC 3 v 2 plot shown on far right (not currently used in model).

Below. Red = annual, green = evergreen, blue = deciduous/shadow. Not shown - null (unvegetated). Linear stretch 0 to 1.

Sedgwick tMM subset below. Red = annual, green = evergreen, blue = deciduous/shadow. Not shown - null (unvegetated). Linear 2% stretch .

Dangermond tMM subset below. Red = annual, green = evergreen, blue = deciduous/shadow. Not shown - null (unvegetated). Linear stretch, 0 to 1.

Full Area Grass Masks - Max Probability Rule

Below. White areas have maximum probability of Annual tEM.

Full Area Grass Masks - Progressive Threshold

Below. Red > 30% , Green > 50%, blue >70%. Binary masks.

Sedgwick Grass Masks - Max Probability Rule

Below. White areas have maximum probability of Annual tEM.

Sedgwick Grass Masks - Progressive Threshold

Below. Red > 10% , Green > 20%, blue >30%. Binary masks.

Sedgwick 3D UMAP - Grasses

Below. Red =UMAP dimension 1, green = UMAP dimension 2, blue = UMAP dimension 3. Linear stretch. Using 20% Mask.

Sedgwick 3D UMAP - Shrub/Tree

Below. Red =UMAP dimension 1, green = UMAP dimension 2, blue = UMAP dimension 3. Linear stretch. Using 20% Mask.

Sedgwick NearMap example - SW Corner

Approx. 7cm resolution. True color.