By Year

2023

Powershell Refresher Website

Attention PowerShell users! Are you looking to brush up on your scripting skills? I am excited to share with you my PowerShell Refresher Website that I have ...

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2022

New WikiAves Colombia Website is Live!

Complete overhaul of the WikiAves website. Featuring expert-curated information with better usability, increase accessibility and enhanced engagement tools.

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2021

Training birdsong recognition using virtual reality

Commonly, Species Monitoring is performed in mega-biodiverse environments by using bioacoustics methodologies where the species are more likely to be heard ...

Designing Data Visualization Assistance for a Bioacoustics Labeling Software

Biodiversity monitoring through bioacoustics is gaining momentum as a way to promote conservation in highly biodiverse countries. However, in these regions,...

Handgrip Force Sensor to Measure Mental Workload

Mental workload is closely related to changes in performance during a task. For example, performance declines when the mental workload is too high or too lo...

Presumptive Diagnosis of Cutaneous Leishmaniasis

Introduction: Cutaneous Leishmaniasis is a neglected tropical disease caused by a parasite. The most common presumptive diagnostic tool for this disease is ...

AR for Brand Recognition and Recall @CHI21

Augmented Reality Game for Brand Recognition and Recall

Invited Talk at TSoT 21

Color distribution of fresh and ripe fruits

A stressful task is when to turn off the music: Effect of music on task performance mediated by cognitive effort

Studies on the effect of music on task performance are contradictory about this relationship’s direction and valence. Task characteristics may be accounting...

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2020

Understanding Salsa: How Computing Is Defining Latin Music

Computational research on intangible cultural heritage contributes to the legitimation of local music as a valuable part of the identity of a region. Furthe...

Audio-Tactile Priming to Guide Information Recall in Edutainment

Assistive technology in learning environments needs to foster information recall strategies as a primary advantage over traditional learning systems. Moreov...

User Engagement for Collaborative Learning on a Mobile and Desktop Augmented Reality Application

User engagement and information understanding was assessed for a basic electronics tutorial designed using Augmented Reality (AR). The main idea was to comp...

Acoustic Monitoring System for Teacher and Student Engagement Evaluation

Face-to-face learning activities involve multiple acoustic interactions between students and teachers. These interactions provide information about their le...

Road-Condition Monitoring and Classification for Smart Cities

Smart Cities require the deployment of sensing technology that periodically monitor the city resources, such as the road infrastructure. Indeed, road maint...

Collaborative Cognitive Training Game to Enhance Selective Sustained Attention in Preschoolers

In preschool environments, there is an increased use of in-class cognitive training games designed to enhance aspects of cognitive control, such as memory a...

The perceived sweetness and price of bottled drinks’ silhouettes

This research supports the cross-modal correspondence between the shape of the bottle and consumers’ perception of sweetness and price using physical measur...

XYZ color data on the visual degradation of vegetables

This data article includes the visual stimuli used to model the freshness perception of four different vegetable textures, namely a cabbage, a carrot, a str...

Biodiversity Project Featured on the Local Press

Research on the labelling and visualization software for acoustic biodiversity monitoring was featured on the press.

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2019

Winners of the 2019 Humboldt Connection Prize

Two research projects won the 2019 Humboldt Connection Prize awarded by the Goethe Institut. Both projects are part of a Biodiversity Monitoring Project aim...

System and Method for Automatically Counting of Mosquitoes

VECO is a software and hardware system that counts the number of mosquitoes in a recipient using analysis of the sound produced by the mosquitos flying. Mo...

Technology-enhanced Training System for Reducing Separation Anxiety in Dogs

Separation anxiety in dogs is a common condition that is manifested by destructive behavior when dogs are left alone. The most successful treatment for cani...

Logic Evaluation through Game-based Assessment

Digital game–based evaluations may be useful to solve several problems of traditional paper-based assessments, such as students’ test anxiety and evaluation...

Universal Design for Enhancing Accessibility of the Visually Impaired in Touristic Environments

Designing for accessibility and inclusion requires careful consideration of specific requirements. In particular, Universal Design promotes inclusion by enh...

Analyzing and Extending the Salsa Dataset

One of the tasks of the Music Information Retrieval area is the characterization of a musical genre. For this purpose, it is necessary to have a dataset of ...

The Effect of Color Channel Representations on the Transferability of Convolutional Neural Networks

Image classification is one of the most important tasks in computer vision, since it can be used to retrieve, store, organize, and analyze digital images. I...

Code and data on the categorization of soft-drink bottles using image silhouettes

This data article includes the visual stimuli used to test the categorization of a set of soft drink bottle silhouettes. Additionally, subjects’ perceptual ...

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2018

In store shelf display technology for enhancing customer brand recognition

Customer brand recognition is a critical factor in the retail environment. Here, we tested two prototypes with ambient technology and gamification elements ...

Biometric interface for driver’s stress detection and awareness

One of the factors for stress reduction among vehicle drivers is to be aware that stress is present. This project presents a biometric interface for stress ...

Identification of Retail Products using Computer Vision

Cardona, S., Arce-Lopera, C. A., Diaz Cely, J. G., Botello, O. (2018). Identification of Retail Products using Computer Vision. Cartagena- Colombia: UTC.13...

Instrumental Music Design: Influence on Task Performance

The authors describe the importance of music design for background instrumental music and the effect on task performance. Three instrumental music conditions...

The Effect of Background Instrumental Music On Emotion and Performance

Music affects the listener behavior and emotion, but this condition depends on variables of music design. In this regard, the present study aims to compare ...

User Engagement Through Multimodal Feedback and Involvement in Game Design with a Wearable Interface

A wearable interface was designed, built and tested as a prototype to evaluate users’ engagement in a game setting. The wearable interface consisted of a li...

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2017

The French, German, and Spanish sound of eating fresh fruits and vegetables

A set of onomatopoeic expressions for eating fruits and vegetables is compared across subjects whose native language is Spanish, French, or German. Subjects...

Subject or object: a product’s scent congruent perspectives

The purpose of this paper is evaluate to what extent consumers can recognise a scent within a context that is congruent either with the product or with the ...

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2016

Salsa Dataset: First Salsa Music Knowledge Base

Salsa is a well-known musical genre and part of our cultural identity. Its origins date back to the 30s of the last century and it has grown in popularity si...

An Elastic Interface for Artistic Composition and Performance

We present an elastic interface designed to capture coarse and continuous movements that are characteristics of artistic, creative and performance processes...

Towards an Efficient Algorithm to Get the Chorus of a Salsa Song

A well-known musical genre and part of Latin-American cultural identity is Salsa. To be able to perform a scientific analysis of this genre, the first step ...

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2015

Quantitative Analysis of Product Categorization in Soft Drinks Using Bottle Silhouettes

In our daily life, we use our senses to acquire information about the objects that surround us. However, the information processing that allows for the reco...

Visual Palatability of Food Dishes in Color Appearance, Glossiness and Convexo-concave Perception Depending on Light Source

This study aims to reveal visual factors which determine the visual palatability of food dishes. We conducted subjective experiments under different light s...

Visualizing User’s Experience to Support Real Time Decision-Making in Urban Transportation Systems

Public Transportation Systems with robust information platforms allow their customers to access vehicle related information expecting that well-informed cus...

Model of vegetable freshness perception using luminance cues

Freshness perception is a quality discrimination process that influences our consumer choice and eating behavior, especially of highly perishable products s...

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2014

Colorimetric Analysis of Makeup Styles and Their Relation with Visual Quality Perception of the Skin

Skin quality perception is a discrimination process that determines many of our attitudes towards a person. However, the perception mechanisms involved in t...

Model for the categorization of bottled soft drinks using their silhouette

In our daily life, we use our senses to acquire information about the objects that surrounds us. However, the information processing that allows the recognit...

Effects of surface color on the estimated freshness of vegetables

Luminance distribution information is a critical cue for estimating visual freshness of vegetables, such as strawberries 1 and cabbages 2. However, it remain...

Image information influencing the online purchase intention of vegetables products

Visual information of the products offered by virtual channels has an important role in the customer purchase intention, for the case of perishable products...

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2013

Design of a Customizable Timbre Space Synthesizer

This paper describes the use of a timbre space mental model to control a digital synthesizer. To create new sounds, our interface uses a morphing technique w...

Luminance distribution asymmetry modifies vegetable freshness perception

Arce-Lopera, C. A., Okajima, K., Masuda, T., Kimura, A., Wada, Y. (2013). Luminance distribution asymmetry modifies vegetable freshness perception. 10th Pa...

Quantitative analysis of product categorization in soft drinks using bottle silhouettes

Arboleda, A. M., Arce-Lopera, C. A. (2013). Quantitative analysis of product categorization in soft drinks using bottle silhouettes. Rio de Janeiro: 10th ...

Effects of Background Reflectance and Illumination Level on the Estimated Freshness of Vegetables

Luminance distribution information is a critical cue for estimating visual freshness of vegetables, such as strawberries 1 and cabbages 2. However, it remain...

Luminance Distribution as a Determinant for Visual Freshness Perception: Evidence from Image Analysis of a Cabbage Leaf

Freshness perception influences consumer behavior when selecting and purchasing fresh foods, such as vegetables and fruits. Although previous research has e...

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2012

Preferred Lighting to Increase Visual Palatability for Food Dishes for the Elderly

Okuda, S., Okajima, K., Arce-Lopera, C. A. (2012). Preferred Lighting to Increase Visual Palatability for Food Dishes for the Elderly. Melbourne: Internat...

Effects of Appearance in Visual Palatability of Dishes for the Elderly under Several Lighting Conditions

This study aims to clarify the effect of the appearance of dishes on the visual palatability for elderly people concerning its color appearance, glossiness, ...

Luminance Distribution Effects on the Visual Quality of Human Skin

To investigate how humans visually perceive the quality of their skin, we took photographs of the faces of 117 Japanese women. Subsequently, we cropped a squ...

Image statistics on the age perception of human skin

Recent research on the age‐dependent changes of facial skin has analyzed their correlation with changes in image and colorimetric properties using mainly fi...

Luminance Information Suffices to Model Vegetable Freshness Perception

Freshness perception is a quality discrimination process that influences our consumer choice and eating behaviour, especially of fresh products such as vege...

Effects of diffuse and specular reflections on the perceived age of facial skin

Age perception is a better biomarker of skin aging than chronological age. However, the optical cues that determine the perception of human skin age are dif...

Luminance distribution modifies the perceived freshness of strawberries

Material perception studies focus on the analysis of visual cues that may underlie the ability to distinguish between the different properties of an object....

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2011

Winner of the 2011 Pangborn Travel Award

Travel award to attend the Pangborn Sensory Science Symposium in 2011.

Winner of the 2011 YNU Travel Award for International Exchange Promotion

Travel award to attend the Pangborn Sensory Science Symposium in 2011.

Luminance Distribution Influences Vegetables Freshness Perception

Arce-Lopera, C. A., Okajima, K., Wada, Y., Masuda, T. (2011). Luminance Distribution Influences Vegetables Freshness Perception. Toronto: Pangborn Sensory ...

Effects of Luminance Distribution on Visual Quality of Human Skin

Arce-Lopera, C. A., Okajima, K., Igarashi, T. (2011). Effects of Luminance Distribution on Visual Quality of Human Skin (1st ed., vol. 23, pp. 74). VISION ...

Effects on Light on Food Appearance in Color, Glossiness and Visual Texture

This study aims to determine the effect of light on the food appearance concerning its color, glossiness, and visual texture. We conducted a sensory experime...

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2010

Winner of the Information Science Department Scholarship for Collaborative Research

Awarded a full scholarship for Collaborative Research at the Information Science Department

Luminance Statistics Effects on Skin Age Perception

To investigate how humans visually perceive the quality of their skin, we took photographs of the faces of 118 Japanese women with and without foundation on ...

Tactile Sense Presentation System for the Physically-disabled based on Image Information

Arce-Lopera, C. A., Kobayashi, Y., Kan, A., Komori, O., Okajima, K., Fukuda, R., Wada, Y. (2010). Tactile Sense Presentation System for the Physically-disab...

Influence of luminance distribution on the appetizingly fresh appearance of cabbage

We investigated the effect that the parameters of luminance distribution in fresh food have on our visual perception of its freshness. We took pictures of t...

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