diff --git a/DataGuide_AAPF_HSI.md b/DataGuide_AAPF_HSI.md
index fd90e56..291d6c4 100644
--- a/DataGuide_AAPF_HSI.md
+++ b/DataGuide_AAPF_HSI.md
@@ -69,10 +69,10 @@ This document details the file system organization and navigation procedures for
 | `header path`        | File path to the header file                          |
 | `camera model`       | Camera mode                                           |
 | `serial number`      | Serial number of the camera                           |
-| `roi left`           | Parameter not relevant to vegetation segments         |
-| `roi top`            | Parameter not relevant to vegetation segments         |
-| `roi width`          | Parameter not relevant to vegetation segments         |
-| `roi height`         | Parameter not relevant to vegetation segments         |
+| `roi left`           | Camera- and height-specific parameter, not relevant to vegetation segments         |
+| `roi top`            | Camera- and height-specific parameter, not relevant to vegetation segments         |
+| `roi width`          | Camera- and height-specific parameter, not relevant to vegetation segments         |
+| `roi height`         | Camera- and height-specific parameter, not relevant to vegetation segments         |
 | `samples`            | Width of data cube (conveyer belt direction)          |
 | `bands`              | Number of spectral channels                           |
 | `lines`              | Number of scanslines from top to bottom               |
@@ -80,8 +80,8 @@ This document details the file system organization and navigation procedures for
 | `scanEndTime`        | Scan end time                                         |
 | `Wavelength`         | List of central wavelengths for each channel (separated by "\|")         |
 | `fwhm`               | Full wavelength at half maximum (width of wavelengths, separated by "\|" |
-| `PlantID`||
-| `CarrierID`||
+| `PlantID`            | Plant ID (POT_BARCODE)     |
+| `CarrierID`          ||
 | `PlantHeight`||
 | `PlantWidth`||
 | `LotID`||