KRISTOFER E. DELAS PEÑAS

I am an assistant professor in the Department of Computer Science, University of the Philippines Diliman. Currently, I am on leave from teaching to pursue a doctoral degree in the University of Oxford, UK.

Research Interests



As a member of the Computer Vision and Machine Intelligence Group in the Department of Computer Science, my research is primarily focused on the application of machine learning on images and videos for quantitative analysis and automated classification and detection. Specifically, I am interested in the following topics:
  • Microscopy Image Analysis
  • Intelligent Systems for Diagnosis of Diseases
  • Generative Modelling on Image Data

Education

University of Oxford
DPhil Biomedical Imaging at the University of Oxford

2018 -

University of the Philippines
MSc Computer Science at the University of the Philippines
Computer Vision and Machine Intelligence, Biomedical Imaging

2013 - 2017

University of the Philippines
BSc Computer Science at the University of the Philippines
Computer Vision and Machine Intelligence

2009 - 2013

Professional Experience

Assistant Professor (November 2017 - present)
Instructor (June 2013 – November 2017)
Department of Computer Science, College of Engineering
University of the Philippines, Diliman
Introduction to Computer Programming, Artificial Intelligence, Assembly Language Programming, Computer Organization, Data Structures, Programming Languages

Software Developer (August 2017 – December 2017)
Computerized Registration System
University of the Philippines, Diliman

Mentor (June 2017)
Department of Science and Technology (DOST) 2017 Summer School on Artificial Intelligence

Project Staff (July 2016 – July 2017)
ReMiDi (Remote Microscopy Diagnosis): Integrated Microscopy Training of Medical Technologists
University of the Philippines, Manila

Reviewer
PeerJ Computer Science
Philippine Engineering Journal

Affiliations

Computer Vision and Machine Intelligence Group, Member (2012 – present)

Oxford Philippines Society, Member (2018 - present), Secretary (2020 - 2021)

Institute of Electrical and Electronics Engineers, Student Member (2019 – present)

Research

Extending Protein Tracking to 3D using Asigmatism, Gaussian Fitting, and CNN
Rotation Project
In this project, we presented and contrasted two approaches (gaussian fitting with CNN-based denoising and CNN axial trajectory trend classification) extending the analysis of protein movement to three dimensions by employing astigmatism.

Cell Detection and Instance Segmentation in a Memory-Constrained Environment using YOLO, UNet, DeepLab, and Conditional Random Fields
Rotation Project
This project examined different deep learning techniques for cell detection and segmentation on resource-constrained environments such as the NVIDIA Jetson TX2.

Plasmodium Parasite Detection and Species Identification on Thin Blood Smears using Shape Feature Analysis and Convolutional Neural Networks
MSc Research Project
This research proposes an intelligent system that automates the diagnostic process for malaria by detecting Plasmodium parasites and the specific species on images of thin blood smears using convolutional neural networks.

eHEART: Electronic Heart Failure Evaluation using Bayesian Networks
Undergraduate Project
This study proposes a system which gives the probabilities of developing heart failure in years to come given the patient's current condition using a Bayesian network of risk factors and their corresponding probabilities.

Conferences and Publications

Automated Detection of Helminth Eggs in Stool Samples Using Convolutional Neural Networks
Kristofer delas Peñas, Elena Villacorte, Pilarita Rivera, Prospero Naval
2020 IEEE Region 10 Conference (TENCON)
Osaka, Japan

Automated Stitching of Coral Reef Images and Extraction of Features for Damselfish Shoaling Behavior Analysis
Riza Rae Pineda, Kristofer delas Peñas, Dana Manogan
2020 IEEE Region 10 Conference (TENCON)
Osaka, Japan

Extracting Axial Depth and Trajectory Trend Using Astigmatism, Gaussian Fitting, and CNNs for Protein Tracking
Kristofer Delas Penas, Mariia Dmitrieva, Joël Lefebvre, Helen Zenner, Edward Allgeyer, Martin Booth, Daniel St. Johnston, Jens Rittscher
2020 IEEE 17th International Symposium on Biomedical Imaging (ISBI)
Coralville, IA, USA

Short Trajectory Segmentation with 1D Unet Framework: Application to Secretory Vesicle Dynamics
Mariia Dmitrieva, Joël Lefebvre, Kristofer Delas Penas, Helen Zenner, Jennifer Richens, Daniel St. Johnston, Jens Rittscher
2020 IEEE 17th International Symposium on Biomedical Imaging (ISBI)
Coralville, IA, USA

Benzalkonium Chloride (BAC) in an Orthodontic Adhesive: Its Effect on Rat Enamel Demineralization using Color-Based Image Analysis
Maria Lourdes Torres-Garcia, Lotus D. Llavore, Alice Bungay, Jesus D. Sarol, Jr, Riza Rae Pineda and Kristofer delas Penas
American Journal of Orthodontics and Dentofacial Orthopedics. Jan 2019.

Analysis of Convolutional Neural Networks and Shape Features for Detection and Identification of Malaria Parasites on Thin Blood Smears
Delas Peñas K., Rivera P.T., Naval P.C.
Intelligent Information and Database Systems
Lecture Notes in Computer Science, vol 10752. Springer. 2018.
10th Asian Conference on Intelligent Information and Database Systems, Dong Hoi City, Vietnam

Malaria Parasite Detection and Species Identification on Thin Blood Smears Using a Convolutional Neural Network
Delas Peñas K., Rivera P.T., Naval P.C.
2017 IEEE/ACM International Conference on Connected Health: Applications, Systems and Engineering Technologies (CHASE)
Philadelphia, PA, USA

Teaching

(page under construction)

Grants

Doctoral Fellowship
University of the Philippines Faculty, REPS, and Administrative Staff Development Program
October 2018 - present

PhD Foreign Scholarship
Department of Science and Technology - Engineering Research and Development for Technology
October 2018 - present

Awards

OVPAA International Publication Award, March 2020
Benzalkonium Chloride in an Orthodontic Adhesive: Its Effect on Rat Enamel Demineralization Using Color-based Image Analysis
Maria Lourdes A. Torres-Garcia, Lotus D. Llavore1, Alice Alma C. Bungay, Jesus N. Sarol Jr., Riza Rae A. Pineda and Kristofer E. delas Peñas
American Journal of Orthodontics and Dentofacial Orthopedics, 155(1): 88-97, 2019

Contact

Address
Department of Computer Science
UP Alumni Engineers Centennial Hall
P. Velasquez St.
University of the Philippines Diliman
Quezon City, Philippines

Telephone
+632 8981 8500 loc. 3231

Email address
kedelaspenas (at) up (dot) edu (dot) ph