A Method for Estimating Canopy Openness, Effective Leaf Area Index, and Photosynthetically Active Photon Flux Density Using Hemispherical Photography and Computerized Image Analysis Techniques - Info and Reading Options
By G. W. Frazer
"A Method for Estimating Canopy Openness, Effective Leaf Area Index, and Photosynthetically Active Photon Flux Density Using Hemispherical Photography and Computerized Image Analysis Techniques" was published by Pacific Forestry Centre in 1997 - Victoria, B.C, the book is classified in Technology & Engineering genre, it has 73 pages and the language of the book is English.
“A Method for Estimating Canopy Openness, Effective Leaf Area Index, and Photosynthetically Active Photon Flux Density Using Hemispherical Photography and Computerized Image Analysis Techniques” Metadata:
- Title: ➤ A Method for Estimating Canopy Openness, Effective Leaf Area Index, and Photosynthetically Active Photon Flux Density Using Hemispherical Photography and Computerized Image Analysis Techniques
- Author: G. W. Frazer
- Language: English
- Number of Pages: 73
- Is Family Friendly: Yes - No Mature Content
- Publisher: Pacific Forestry Centre
- Publish Date: 1997
- Publish Location: Victoria, B.C
- Genres: Technology & Engineering
“A Method for Estimating Canopy Openness, Effective Leaf Area Index, and Photosynthetically Active Photon Flux Density Using Hemispherical Photography and Computerized Image Analysis Techniques” Subjects and Themes:
- Subjects: ➤ Forest canopy ecology - Couvert (Sylviculture) - Forest canopies - Imagerie en biologie - Écologie du couvert forestier - Imaging systems in biology
- Places: Île de Vancouver - British Columbia - Vancouver Island - Colombie-Britannique
Edition Specifications:
- Pagination: vii, 73 p. :
Edition Identifiers:
- Google Books ID: R9qYh4T6VJ4C
- The Open Library ID: OL16009134M - OL11656776W
- ISBN-13: 9780662260950
- ISBN-10: 0662260953
- All ISBNs: 0662260953 - 9780662260950
AI-generated Review of “A Method for Estimating Canopy Openness, Effective Leaf Area Index, and Photosynthetically Active Photon Flux Density Using Hemispherical Photography and Computerized Image Analysis Techniques”:
Snippets and Summary:
Hemispherical canopy photography is an indirect method for measuring various components of forest canopy structure and solar radiation flux within and below forest canopies.
"A Method for Estimating Canopy Openness, Effective Leaf Area Index, and Photosynthetically Active Photon Flux Density Using Hemispherical Photography and Computerized Image Analysis Techniques" Description:
Google Books:
Hemispherical canopy photography is an indirect method for measuring various components of forest canopy structure and solar radiation flux within and below forest canopies. The method utilizes a 180-degree fisheye-lens camera to capture and record the position, size, and shape of openings or gaps in a forest canopy. During late summer 1995, eight sites on southern Vancouver Island were intensively sampled using hemispherical photographic methods. This document describes the general theory, approach, and analytical tools associated with hemispherical canopy photography and computerized image analysis in the context of this research. As a result, a technical protocol has been devised that can be adopted, modified, and improved upon by those interested in using hemispherical techniques for similar research initiatives. Recommendations are made to improve the quality and reliability of future hemispherical image analysis systems. Appendices include information on measurement of fisheye lens distortion and the effect on the calculation of gap fraction magnitude and distribution, and a model for estimating percent open sky and leaf area index.
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