Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Softwoods and Hardwoods01:28

Softwoods and Hardwoods

304
Softwoods and hardwoods, derived from different types of trees, are distinguished by their leaf structures and cellular compositions, each serving unique purposes in construction and manufacturing. Softwoods come from cone-bearing trees with needle-like leaves and are predominantly composed of longitudinal cells called tracheids and a smaller proportion of radial cells known as rays. Due to their cellular structure, softwoods are commonly used in construction for structural frames, sheathing,...
304
Wood Products01:21

Wood Products

165
Wood products encompass a broad range of materials crafted from wood strands, veneers, lumber, and even waste wood-like shreds, designed for both structural and nonstructural purposes. Various specialized wood products have been developed to enhance strength, durability, and versatility in building applications.
Glue-laminated wood, often referred to as glulam, combines multiple smaller pieces of dimensional lumber using adhesives to form a single, larger piece. Cross-laminated timber consists...
165
Introduction to Wood01:19

Introduction to Wood

408
Wood, derived from trees, is a versatile and widely used construction material. Trees feature a trunk surrounded by a protective layer of dead bark. Beneath this outer layer lies the living bark, followed by the cambium, and then the sapwood which transitions into heartwood as it matures. At the center of the trunk is the pith. The age of a tree can be discerned by examining its growth rings, which are concentric bands visible in the trunk's cross-section.
The structural integrity of the...
408
Lumber Defects01:23

Lumber Defects

282
Lumber defects, which can affect both the appearance and structural integrity of wood, include a variety of growth and manufacturing flaws. Growth defects such as knots and knotholes occur where branches were once attached to the tree trunk, with knotholes forming when these knots fall out. Other natural defects include decay and insect damage, which compromise the wood's strength and durability.
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
282
Structural Properties and Dimensions of Lumber01:21

Structural Properties and Dimensions of Lumber

234
Wood's structural properties derive from fibers aligned along the tree's length, contributing significantly to its mechanical strength. Wood exhibits up to twenty times greater tensile strength along these fibers compared to across them, and generally shows better performance under compression than tension. The length of fibers varies, with hardwoods having fibers around one twenty-fifth inch long and softwoods ranging from one-eighth to one-third inch.
The strength characteristics of...
234
Lumber01:19

Lumber

240
Lumber is derived from logs which are harvested, debarked, and processed into long pieces with a rectangular cross-section. The transformation of logs into lumber involves multiple steps, beginning with an automated saw that slices the log into slabs. These slabs are then transported via a conveyor belt to smaller saws, where they are cut into square-edged pieces of specific widths.
Initially, the surfaces of these lumber pieces are rough, and their dimensions may vary slightly from one end to...
240

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

International Registry of NKX2-1-Related Disorders: Clinical, Genetic, and Imaging Perspectives.

Movement disorders : official journal of the Movement Disorder Society·2026
Same author

The Spectrum of Neurologic Phenotypes Associated With NUS1 Pathogenic Variants: A Comprehensive Case Series.

Annals of neurology·2025
Same author

Attachment styles and associated psychosocial factors in patients at ultra-high risk for psychosis: A systematic review.

The International journal of social psychiatry·2024
Same author

E-H Bond Cleavage Processes in Reactions of Heterometallic Phosphinidene-Bridged MoRe and MoMn Complexes with Hydrogen and p-Block Element Hydrides.

Organometallics·2023
Same author

Cycloaddition and C-S Bond Cleavage Processes in Reactions of Heterometallic Phosphinidene-Bridged MoRe and MoMn Complexes with Alkynes and Phenyl Isothiocyanate.

Organometallics·2023
Same author

Geographic variation in the altitudinal migration patterns, body size, oxidative status and exploratory behavior in a neotropical bird.

Ecology and evolution·2023
Same journal

PGPR-AMF consortia improve drought tolerance in maize through stomatal regulation, antioxidant defense, and yield stability.

Frontiers in plant science·2026
Same journal

Correction: The 1-aminocyclopropane-1-carboxylic acid deaminase-producing <i>Streptomyces violaceoruber</i> UAE1 can provide protection from sudden decline syndrome on date palm.

Frontiers in plant science·2026
Same journal

An integrated edge AI prototype for smart agriculture: real-time pest detection, physical trapping, and multi-node deployment analysis under field uncertainty.

Frontiers in plant science·2026
Same journal

Twice-spraying plant growth regulator EDAH stage-regulates maize plant morphology: a novel strategy for enhancing stalk lodging resistance.

Frontiers in plant science·2026
Same journal

A FnWRKY17-<i>FnFLA16</i> regulatory module controls leaf curling in <i>Fragaria nilgerrensis</i>.

Frontiers in plant science·2026
Same journal

24-epibrassinolide-mediated regulation of physiological and biochemical parameters in <i>Chlamydomonas reinhardtii</i> for optimized growth and future biotechnological applications.

Frontiers in plant science·2026
See all related articles

Related Experiment Video

Updated: Nov 1, 2025

Author Spotlight: UAV Remote Sensing for Efficient Invasive Plant Biomass Estimation
08:47

Author Spotlight: UAV Remote Sensing for Efficient Invasive Plant Biomass Estimation

Published on: February 9, 2024

1.8K

Field-Deployable Computer Vision Wood Identification of Peruvian Timbers.

Prabu Ravindran1,2, Frank C Owens3, Adam C Wade3

  • 1Department of Botany, University of Wisconsin, Madison, WI, United States.

Frontiers in Plant Science
|June 21, 2021
PubMed
Summary
This summary is machine-generated.

A new AI system accurately identifies Peruvian wood species, combating illegal logging and supporting sustainable timber trade. This computer vision technology aids in monitoring and verifying legal wood sources.

Keywords:
XyloTroncomputer visiondeep learningillegal logging and timber trademachine learningwood identification

More Related Videos

Author Spotlight: Advancements in X-ray CT Tool Chain for Tree Core Analysis
06:56

Author Spotlight: Advancements in X-ray CT Tool Chain for Tree Core Analysis

Published on: September 22, 2023

1.3K
Rapid Testing of Resistance of Timber to Biodegradation by Marine Wood-Boring Crustaceans
14:06

Rapid Testing of Resistance of Timber to Biodegradation by Marine Wood-Boring Crustaceans

Published on: January 29, 2022

4.0K

Related Experiment Videos

Last Updated: Nov 1, 2025

Author Spotlight: UAV Remote Sensing for Efficient Invasive Plant Biomass Estimation
08:47

Author Spotlight: UAV Remote Sensing for Efficient Invasive Plant Biomass Estimation

Published on: February 9, 2024

1.8K
Author Spotlight: Advancements in X-ray CT Tool Chain for Tree Core Analysis
06:56

Author Spotlight: Advancements in X-ray CT Tool Chain for Tree Core Analysis

Published on: September 22, 2023

1.3K
Rapid Testing of Resistance of Timber to Biodegradation by Marine Wood-Boring Crustaceans
14:06

Rapid Testing of Resistance of Timber to Biodegradation by Marine Wood-Boring Crustaceans

Published on: January 29, 2022

4.0K

Area of Science:

  • Forestry Science
  • Computer Vision
  • Artificial Intelligence

Background:

  • Illegal logging poses a significant threat to Peruvian, Amazonian, and global tropical forests.
  • In Peru, a substantial portion of logging concessions and exported timber are of illegal origin, undermining legal trade and conservation efforts.

Purpose of the Study:

  • To develop and evaluate a computer vision system for accurate wood species identification in Peru.
  • To combat illegal logging and promote legal, sustainable timber value chains through technology.

Main Methods:

  • A convolutional neural network was trained using transfer learning on wood specimen images.
  • The XyloTron platform was utilized for image acquisition from six xylaria, covering 228 Peruvian species across 24 classes.
  • The system was evaluated on independent wood specimens not used in training.

Main Results:

  • The trained models achieved 97% accuracy in five-fold cross-validation.
  • Top-1 and top-2 classification accuracies on independent specimens were 86.5% and 92.4%, respectively.
  • This represents the first national-scale computer vision wood identification system evaluated on independent scientific specimens across multiple sites and users.

Conclusions:

  • The developed AI system demonstrates high accuracy and readiness for real-world field deployment.
  • This technology offers an affordable, scalable solution for monitoring, incentivizing, and monetizing legal and sustainable wood value chains.
  • The system provides a crucial tool for combating illegal logging and supporting legitimate timber industries.