ML Research Projects

(in semi-chronological order)

For a list of academic publications, please see my semantic scholar page.

Earballs is an attempt to use machine learning for sensory substition, i.e. to create an information preserving map from the visual to the non-lingual audio domain. The goal being to make visual information (and other any types of information) available to users through their ears. The system uses a pretrained image embedding network to extract visual features and embed them in a compact subset of Euclidean space – this converts the images into feature vectors whose L2 distances can be used as a meaningful measure of similarity. A generative adversarial network (GAN) is then used to find a distance preserving map from this metric space of feature vectors into the metric space defined by a target audio dataset equipped with a psychoacoustic distance metric. The idea being that the features from a pretrained pretrained image embedding network is essentially used to compress the visual information into an image into a much smaller amount of information which can be communicated to the user through sound.

Related papers, patents, and awards
Diagram explaining metric preservation network model diagram hackathon trophy
We use least energy optimization on heatmaps output by Mask R-CNN as a quick and clean method to achieve superhuman segmentations on quadrilateral exit signs. The resulting model generalizes surprisingly well on rectangular exit signs of different color and design.

Related papers
  • A. Port, R. Manduchi, "Accurate Quadrilateral Regression for Binary Instance Segmentation using Mask-RCNN and Basin Hopping", submitted to MCPR 2019
An example exit sign segmentation result.
Lead development of deep learning-based computer vision technology for monitoring fishery spatial population distributions in Belize and Honduras. This work required development use of convolutional neural network models for semantic segmentation, contour-based image classification, keypoint detection as well as non-ML steps like color correction and rectification. Also worked with biologists to design data collection and analysis methodology.
This work was supported by The Rare Fish Forever Project.
Our classification pipeline. Our classification pipeline. Our classification pipeline.
A collaboration with freshwater ecologist, Nick Macias, to classify and count bugs as they flow by a camera station in a river.
More TBA after publication.
Chiron example image Eph Ple example image Sim example image Chiron Pupae example image

Other Research Projects

Collaboration with forest ecologists Brook Constanz and Randy Senock to improve current state of the art for transect analysis and tree ring crossdating.

Related Papers
  • B. Constanz, A. Port, R. Senock, "Comparing Automatically Generated and Manually Measured Tree-Ring Transects of Growth Trends with Hawaiian Sandalwood as an Example Species", submitted to Dendrochronologia (2020, in review)
Sample c242 pixels to transects