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Imaging Science Thesis Defense: A Step Towards Developing Digital Twins of Forest Environments with Terrestrial Laser Scanning | Events
Imaging Science MS Thesis Defense A Step Towards Developing Digital Twins of Forest Environments with Terrestrial Laser Scanning Zoom Link here Aisha Co Imaging Science MS Candidate Rochester Institute of Technology Abstract: Digital twins have become an increasingly relevant topic as we pursue accurate representations of the real world for planning, research, and even design purposes. This study focuses on the steps for creating digital twins of forest environments using sparse points from terrestrial light detection and ranging (LiDAR). Specifically, we developed geometric models of structural digital twins (SDTs) from leaf-off terrestrial laser scanning of real-world forests. Three algorithms were used to develop an approach to handle individual tree reconstructions for sparse point clouds, and they were tested and validated with a two-sample Kolmogorov-Smirnov statistic against an existing inventory of the RIT Nature Trail to evaluate the reconstruction’s fidelity. The key evaluation metrics included diameter at breast height (DBH) and height. The limited nature of available ground truth necessitated the use of an additional validation method using a PANGAEA open dataset, based on comparing DBH, height, and crown diameter against the dataset’s calculated measurements. Reconstructions were compared against per-tree reference values at two-point spacings for sixteen trees from the open BR07 dataset (PANGAEA); these specifications matched the collected RIT Nature Trail data and the scanner’s nominal spacing. On BR07, the proposed method had the lowest median DBH error among the methods that modeled every tree (1.28cm, 4.1%), and this error was nearly unchanged at the coarser spacing, while TreeQSM’s rose from 4.2% to 6.5% and AdTree overestimated DBH by 30% to 40%. Results show the proposed method understates the tree heights by 0.2m to 1.4m but contains the least error when estimating DBH. The proposed method was able to produce all 69 trees, while SimpleTree produced 49 and none at the 4.35 cm BR07 spacing. We concluded that the developed geometric model (digital) twins have significant potential to serve as both simulation and prediction tools. We recommend that future efforts focus on collecting per-tree ground truth measurements within the scanned plot and incorporating leaf-on scans. Leaf-on scans include representative foliage, which would add realism to the model and ecological function of the trees. Intended Audience: Beginners, undergraduates, graduates. Those with interest in the topic. To request an interpreter, please visit myaccess.rit.edu
Fresno State healthcare grant brings $1.4M to Valley
Fresno State receives $1.4 million to expand healthcare training, digital technology and access to care in four Central Valley counties.
Leela Gray gets a fourth ratings shift and a $1.4M quarter. The last two Democrats to poll this well against Anna Paulina Luna lost by 9 points
Four ratings shifts in nine days. Luna's polling history cuts the other way.
Yolanda Brown pleads guilty to wire fraud after $207K theft from a Ken Welch political committee
The former political Treasurer admitted to a yearslong scheme involving roughly 20 clients and more than $1.4M.
Are iPhone 17 Pro Cases Compatible With iPhone 18 Pro? Here's What Apple Says
Can you use iPhone 17 Pro and iPhone 17 Pro Max cases with the iPhone 18 Pro and iPhone 18 Pro Max, and vice versa? Apple's official answer is no, according to Daring Fireball's John Gruber. Apple said the camera plateau on the iPhone 18 Pro models is ever so slightly thicker this year. Gruber said the difference is one-tenth of a millimeter: 11.5mm vs. 11.4mm. It is a minor difference, but Apple would obviously prefer to sell you a new case.
Former Quality Inn on Airline sells for $1.4M
A bank-owned, distressed hotel property at the junction of Airline Highway and Interstate 12 in Baton Rouge has sold for $1,475,000. The 172-room property, formerly a Quality Inn, was built in 1968… Already an INSIDER? Sign in. Already an INSIDER? Sign in
Dave & Buster's Entertainment, Inc. Q2 2026: Revenue $544.1M, EPS $(0.36)
Dave & Buster's Entertainment, Inc. reported second-quarter 2026 results with revenue of $544.1M, a net loss of $12.5M and diluted EPS of $(0.36), compared with revenue of $557.4M, net income of $11.4M and diluted EPS of $0.32 in the year-ago quarter.Financial HighlightsBusiness HighlightsOriginal…
£86m at 18
BBC Sport reported earlier this week that Manchester City and Lille were in advanced talks over a deal for Morocco midfielder Ayyoub Bouaddi to move to Etihad Stadium. An agreement for the 18-year-old to join Enzo Maresca's side is now in place, with Bouaddi set to complete his protracted move to England - Lille accepting an initial fee of £81.4m, plus £4.2m in add-ons. Bouaddi impressed at this summer's World Cup - starting five of Morocco's six matches in their run to the quarter-finals - after a starring role in Lille's Champions League victory over Real Madrid in 2024 announced him on the big stage.
Socialist bigwig blasts the wealthy while living in $1.4M Brooklyn brownstone with eyebrow-raising backstory
New York City Democratic Socialists of America co-chair Gustavo Gordillo rails against the rich from a $1.4M Bed-Stuy home his dad bought him.
AMC Entertainment posts record quarterly revenue $1.60B and adjusted EBITDA $321.4M in Q2 2026
AMC Entertainment reported record quarterly results for Q2 2026, with total revenues of $1,596.7 million and adjusted EBITDA of $321.4 million — the highest quarterly figures in the company's history. Net loss for the quarter was $11.4 million while adjusted net earnings were $104.3 million; adjust…
Benevolent, manufacturing facilities: See 20 latest business, apartment, land sales ($30K to $1.4M)
See a list of property sales in Onondaga County other than residential homes.
After shedding legacy units, Kustom cuts annual loss by nearly $12M
Revenue from continuing operations reached $13.8M as stockholders' equity rose $11.4M; stronger working capital backs Kustom's entertainment-only pivot.
Blaise Ingoglia distributes $1.4M in grants to Gulf Coast emergency workers
The latest round of check distribution for first responders amounts to more than $28M combined granted in the past year.
Bob Buckhorn political committee raises $400K-plus in Q4, bringing total to $1.4M for eventual Tampa mayoral comeback
The early fundraising push could serve to dissuade others considering running for Mayor as the race approaches in 2027.