Digital Commons Network^™

Smiler: Consistent And Usable Saliency Model Implementations, Toni Kunic, Calden Wloka, John K. Tsotsos

MODVIS Workshop

The Saliency Model Implementation Library for Experimental Research (SMILER) is a new software package which provides an open, standardized, and extensible framework for maintaining and executing computational saliency models. This work drastically reduces the human effort required to apply saliency algorithms to new tasks and datasets, while also ensuring consistency and procedural correctness for results and conclusions produced by different parties. At its launch SMILER already includes twenty three saliency models (fourteen models based in MATLAB and nine supported through containerization), and the open design of SMILER encourages this number to grow with future contributions from the community. The project …

Color Transparency From Motions Of Backgrounds And Overlays, Zhehao Huang, Qasim Zaidi

MODVIS Workshop

No abstract provided.

Is The Selective Tuning Model Of Visual Attention Still Relevant?, John K. Tsotsos

MODVIS Workshop

No abstract provided.

Human Versus Machine Perception Of Patterns Or A Visual Turing Test: “Are You A Human Or A Robot?”, Yanxi Liu

MODVIS Workshop

No abstract provided.

Functional Organization Of Cortical Maps For Ocular Dominance And Light-Dark Polarity In Primary Visual Cortex, Sohrab Najafian, Jian Zhong Jin, Jose-Manuel Alonso

MODVIS Workshop

No abstract provided.

The Fluid Representations Of Networks Estimating Liquid Viscosity, Jan Jaap R. Van Assen, Shin'ya Nishida, Roland W. Fleming

MODVIS Workshop

No abstract provided.

Computations Of Top-Down Attention By Modulating V1 Dynamics, David Berga, Xavier Otazu

MODVIS Workshop

The human visual system processes information defining what is visually conspicuous (saliency) to our perception, guiding eye movements towards certain objects depending on scene context and its feature characteristics. However, attention has been known to be biased by top-down influences (relevance), which define voluntary eye movements driven by goal-directed behavior and memory. We propose a unified model of the visual cortex able to predict, among other effects, top-down visual attention and saccadic eye movements. First, we simulate activations of early mechanisms of the visual system (RGC/LGN), by processing distinct image chromatic opponencies with Gabor-like filters. Second, we use a cortical …

Towards Human Retinal Cones Spatial Distribution Modeling, Matteo Paolo Lanaro, Hélène Perrier, David Coeurjolly, Victor Ostromoukhov, Alessandro Rizzi

MODVIS Workshop

No abstract provided.

Selecting Maximally-Predictive Deep Features To Explain What Drives Fixations In Free-Viewing, Matthias Kümmerer, Thomas S.A. Wallis, Matthias Bethge

MODVIS Workshop

No abstract provided.

Modelling Human Perception Of High Gloss Materials Using Neural Networks, Konrad E. Prokott, Hideki Tamura, Roland W. Fleming

MODVIS Workshop

No abstract provided.

Differentiating Changes In Population Encoding Models With Psychophysics And Neuroimaging, Jason Hays, Fabian Soto Phd

MODVIS Workshop

It is now common among visual scientists to make inferences about neural population coding of stimuli from indirect measures such as those provided by neuroimaging and psychophysics. The success of such studies depends strongly on simulation work using standard population encoding models extended with decoders (in psychophysics) and measurement models (in neuroimaging). However, not all studies are accompanied by simulation work, and those that are tend to vary widely in their assumptions about encoding, decoding, and measurement. To solve these issues, we designed a Python package (PEMGUIN) to assist computational modelling by providing simple ways to manage encoders' tuning functions, …

Explaining The Lightness Of Real Illuminated Surfaces Viewed Under Gelb Illumination With A Neurocomputational Model, Michael E. Rudd

MODVIS Workshop

No abstract provided.

Differentiation As Measured By The Classroom Practices Survey: A Validity Study Updating The Original Instrument, Nielsen Pereira, Juliana Tay, Yukiko Maeda, Marcia Gentry

Department of Educational Studies Faculty Publications

The Classroom Practices Survey is an instrument developed to collect information on educators’ use of differentiated instruction with students achieving at average and high levels. The purposes of this study were to investigate if the Classroom Practices Survey (1) yields reliable and valid data from the groups it was originally designed for, and (2) can be used to evaluate teachers’ differentiation practices for students who achieve at low levels. Participants included 648 elementary teachers who completed the Classroom Practices Survey on students achieving at high, average, and low levels. Results of confirmatory factor analyses revealed that the original six-factor model …

Assessment Of Household Food Security In Fish Farming Communities In Ghana, Akua S. Akuffo, Kwamena Quagrainie

Department of Agricultural Economics Faculty Publications

The Government of Ghana and international NGOs have been encouraging the adoption of fish farming to alleviate poverty and food insecurity through training workshops, financial contributions and creation of a fisheries ministry. Nevertheless, there is no study on how these efforts have influenced the household’s welfare, particularly their nutritional quality. Based on this, our objective is to identify the ways through which fish farming impacts the household’s nutritional quality. We hypothesize that engaging in fish farming will increase steady income flow and access to fish for the household’s direct consumption. We adopted the Propensity Score Matching (PSM) approach in a …

Contour Integration In Real Images, Peng Sun, Ran Duan, Doreen Hii, Zygmunt Pizlo

MODVIS Workshop

No abstract provided.

Virtual Eye: A Spatial-Temporal Bottom-Up Eye Sensitivity Model, Todd Goodall

MODVIS Workshop

Video quality and compression models use the

spatial contrast sensitivity function (CSF), which is solved

based on a linear system approximation. This function measures

the eye’s sensitivity to sinusoid gratings, ignoring the subtle

connectivity and inhomogeniety of cell density across the

visual field. Non-linear aspects of the eye, such as the change

in frequency sensitivity with changing illumination, are not

captured by this simple approximation. We propose Virtual

Eye, a bottom-up approach that models the spatio-temporal

dynamics of the eye across the visual field. Each functional

retinal cell layer in the eye is modeled using non-uniform spatial

cell responses, which …

Recovering Depth From Stereo Without Using Any Oculomotor Information, Tadamasa Sawada

MODVIS Workshop

The human visual system uses binocular disparity to perceive depth within 3D scenes. It is commonly assumed that the visual system needs oculomotor information about the relative orientation of the two eyes to perceive depth on the basis of binocular disparity. The necessary oculomotor information can be obtained from an efference copy of the oculomotor signals, or from a 2D distribution of the vertical disparity, specifically, from the vertical component of binocular disparity. It is known that oculomotor information from the efference copy and from the vertical disparity distribution can affect the perception of depth based on binocular disparity. But, …

Modeling Visual Enumeration Using Cumulative Link Regression., Anthony D. Cate Ph.D.

MODVIS Workshop

Based on three core assumptions about mental representations of number, this model of visual enumeration specifies analysis methods that can identify when observers rely on different processes to estimate the numerosity of a visual display. Specifically, the model provides a clear criterion for identifying domains of numerosity that correspond to different perceptual or cognitive processes that have been described in numeracy literature, e.g. subitizing. The model predicts how the requirement to give integer responses in enumeration tasks can produce spurious discontinuities in accuracy measures that can be misidentified as evidence for a subitizing process. It is proposed that cumulative link …

Mental Geometry For Estimating Relative 3d Size, Akihito Maruya, Qasim Zaidi Dr.

MODVIS Workshop

No abstract provided.

Quantified Measurement Of The Tilt Effect In A Family Of Café Wall Illusions, Nasim Nematzadeh Dr., David Martin Powers Prof.

MODVIS Workshop

This abstract explores the tilt effect in a family of Café Wall illusions using a Classical Gaussian Receptive Field model (CRF). Our model constructs an intermediate representation called edge map at multiple scales (Fig. 1) that reveals tilt cues and clues involved in the illusory perception of the Café Wall pattern. We investigate a wide range of parameters of the stimulus including mortar width, luminance, tiles contrast, and phase of the tile displacement (the stimuli in Fig. 2). We show that this simple bioplausible model, simulating the contrast sensitivity of the retinal ganglion cells, can not only detect the tilts …

An Observer Model Version Of General Recognition Theory, Fabian Soto Phd

MODVIS Workshop

No abstract provided.

Variance Partitioning Reveals Consistent Representation Of Object Boundary Contours In Lo Across Different Datasets, Mark D. Lescroart, Utkarsh Singhal

MODVIS Workshop

No abstract provided.

The Challenge For Vision Of Fluctuating Real-World Illumination, David H. Foster

MODVIS Workshop

No abstract provided.

Women Artists Shows·Salons·Societies: Towards A Global History Of All-Women Exhibitions, Catherine Dossin, Hanna Alkema

Artl@s Bulletin

The Women Artists Shows·Salons·Societies project was launched in 2017 as a collaboration between Artl@s and AWARE. Combining AWARE’s ambitions to restore the presence of 20th-century women artists in the history of art, and Artl@s’s desire to provide scholars with the data and tools necessary to question the canonical art historical narratives through quantitative and cartographic analyses, we decided to work on group exhibitions of women artists.
Our first ambition is to build a community of scholars and work together to develop a common terminology and even possibly a common and consistent methodology to study these events, because the ones used …

À L’Assaut ! Explosion D’Expositions De Femmes Artistes En France Pendant Le Mouvement Féministe, Fabienne Dumont

Artl@s Bulletin

En France, durant les années 1970, les plasticiennes se sont regroupées afin de lutter contre leur invisibilité sur la scène artistique. Plusieurs collectifs ont porté leurs revendications, accompagnés de quelques théoriciennes qui ont œuvré pour faire connaître leurs travaux. La décennie voit ainsi surgir de multiples expositions de femmes artistes, liées à des collectifs aux idéologies variées. Cet article s’attache au foisonnement d’expositions, à partir de recherches pionnières, parues dans l’ouvrage Des sorcières comme les autres. Artistes et féministes dans la France des années 1970.

Femmes Artistes Italiennes Du Xxe Siècle : Il Complesso Di Michelangelo, Rome 1977, Laura Iamurri

Artl@s Bulletin

Une exposition historique de femmes artistes s’ouvrit à Rome en février 1977 : installée dans une galerie privée, la première rétrospective consacrée aux artistes italiennes du XX^e siècle avait été organisée à l’occasion de la parution du livre Il complesso di Michelangelo [Le complexe de Michel-Ange], écrit par l’artiste Simona Weller. Cet ouvrage, premier essai de recensement de la présence féminine dans l’art contemporain en Italie, citait 270 artistes tout au long du siècle, la plupart d’entre elles oubliées ou inconnues ; seules les artistes professionnelles étaient prises en considération.

Exhibiting Women's Art In Post-War Europe, Agata Jakubowska

Artl@s Bulletin

This essay elaborates on women-only shows organized in post-war Europe by the associations of (women) artists, that – as initial research showed – were major initiators of this type of exhibitions during the period. It proposes a comparative analysis of operations of this type of associations in three countries whose situations during and after the war differed considerably: Austria, France and Poland. The geopolitical position of these countries and the gender politics they implemented influenced the operation of (women) artists’ associations and organization of their annual exhibitions, but also the place they occupy in the art historical narratives.

Se Rendre Visible Dans L’Espagne De Franco: Le Salón Femenino De Arte Actual (1962-1971), Maria Lluïsa Faxedas, Isabel Fontbona, Patricia Mayayo

Artl@s Bulletin

The paper examines the history and the critical reception of the Salón femenino del arte actual, an annual all-female exhibition organized by a group of women artists in Barcelona between 1962 and 1971. Unique at the time, the Salón challenged the traditional role attributed to women under Franco's dictatorship, managing at the same time to obtain support from local authorities. The paper argues that it was the ability of the organisers to take advantage of political ambivalence, to find a delicate balance between complicity and resistance, which allowed the exhibition to survive for a decade.

The Exhibition “Contribuição Da Mulher Às Artes Plásticas No País" And The Silence Of Brazilian Art Criticism, Marina Mazze Cerchiaro, Ana Paula Simioni, Talita Trizoli Ms

Artl@s Bulletin

In 1960 the São Paulo Museum of Modern Art inaugurated the exhibition “Contribuição da mulher às artes plásticas no país”. This was the first female collective exhibition of a large scale to happen in Brazil. However, although it happened in a prestigious institution and it gathered renowned artists, this exhibition did not get extensive press coverage and it did not inspire similar initiatives during the decade. This article proposes a reflection on this silence and on the resistance of Brazilian artistic circles to treating women artists as a collective, which could explain the late impact of feminism in this field.

Α “Guarantee Of Clustered Energy And Collective Promotion”: The Association Of Greek Women Artists And Its Exhibitions In The 50s And 60s, Glafki Gotsi

Artl@s Bulletin

Founded in Athens in 1954 the Association of Greek Women Artists aimed at promoting art among the Greek public, confronting the problems of women artists through collective action, and encouraging the presentation of Greek art on the international scene. In the 1950s and 1960s it organized a significant number of group exhibitions in Greece as well as abroad, where its members showed their work. This paper examines the context of the association’s all-women shows and their meaning in relation to feminist cultural politics inside but also beyond national borders. More specifically, it analyzes the circumstances under which the collectivity was …