Yoli Ngandali, Ph.D. Student

Yoli_nunalleq2Education:
A.A. Audio/Video Digital Media (Minneapolis Community and Technical College),
B.S. Archaeological Studies (University of Wisconsin La Crosse)
M.A. Anthropology (University of Washington)

Interests: Indigenous archaeology, GIS, conservation science, digital media, museum studies, re-analysis of legacy data, Pacific Northwest archaeology

About: Yoli is a Ronald E. McNair Research Fellow who started her education in a Digital Media Production program. Her video, audio, and animation background drives the way she thinks about archaeology today.  She received her Bachelors of Science in Archaeological Studies at the University of Wisconsin La Crosse in 2015. She received her Master’s Degree in Anthropology from the University of Washington in 2017. She has participated in community-based archaeological projects in Wisconsin (Tremaine Site Complex), Alaska (Nunalleq Project), and Oregon (Field Methods in Indigenous Archaeology). In graduate school, Yoli intends to elaborate upon the idea that digital media are valuable educational tools for cultural heritage collections.  Digital technologies have analytical potential which can be used to engage local and descendant communities. Stay tuned for more 3D modeling, multi-spectral imaging, photogrammetry, and Reflectance Transformation Imaging from Yoli in the coming years. CV

Green River Canoe
Digital reconstruction, photogrammetry, 3D printing

I used photogrammetry and 3D modelling to digitally connect broken pieces of the canoe. 3D model was used to create a 3D print and to gather measurements. The 3D printed model was sent to Master carver George Swanaset Jr. and a new canoe was recently carved to scale. This is an example of digital media and technology being used not only for public education events, but as a tool for understanding specialized knowledge about local canoe traditions and collaborative research opportunities.

Burke Blog – Ancient Coast Salish canoe project launches

 

 

 

Multi-Spectral and Digital Imaging Techniques

Multispectral imaging, ultraviolet, infrared, dstretch

I use technical photography to reveal the process to which ground stone artifacts were made by using multi-spectral and false-color imaging tools to improve the perceptibility of artifact modification such as carving, pecking, and grinding. 

Transmission curves for camera filters

Technical Photography Examination Workflow

Modified Digital Camera: Internal hot mirror replaced with custom-made full spectrum glass filter.

Ultraviolet: Differentiation of materials with similar visual properties, but different chemical composition of organic compounds. Visualization of surface modification (320-385nm).

Visible: Visual examination with the naked eye, close details, full color visualization. Used in conjunction with False Color Imaging and RTI (400-700nm).

Infrared: Detection of areas of pigmentation depending on the rate of absorption of infrared wavelengths (720-860nm).

False-Color: Color rendering tools used to exaggerate or accentuate images by changing the color space from RGB to LAB or other spaces.

Reflectance Transformation Imaging: Virtual and enhanced visualization of an objects surface using directional light.