20 papers · ranked by Valyu relevance
James T. Todd, Alexander A. Petrov
Shape is an interesting property of objects because it is used in ordinary discourse in ways that seem to have little connection to how it is typically defined in mathematics. The present article describes how the concept of shape can be grounded within Euclidean and non-Euclidean geometry and also to human perception.…
Yunyun Chen, Yuying Wang, Sen Guo, Xuemin Zhang + 1 more
Previous studies have validated that participants can distinguish different origins of objects’ shape features, teasing apart features caused by transformation (causal history) from those of the original shape. Considering bite as a transformation example, two experiments were designed to investigate the effect of…
Yaniv Morgenstern, Katherine R. Storrs, Filipp Schmidt, Frieder Hartmann + 3 more
Shape perception is essential for numerous everyday behaviors from object recognition to grasping and handling objects. Yet how the brain encodes shape remains poorly understood. Here, we probed shape representations using visual aftereffects—perceptual distortions that occur following extended exposure to a…
Lalit Pandey, Samantha M. W. Wood, Justin N. Wood, Jens Hjortkjær
Shape perception is central to human vision, but its developmental origins remain unknown. Here we show that shape perception develops from three ingredients: (1) generic fitting systems, (2) embodied visual experiences, and (3) biologically plausible sensors. We first show that generic fitting models (transformers)…
Ilker Yildirim, Max Siegel, Amir A. Soltani, Shraman Ray Chaudhari + 1 more
'Joshua B. Tenenbaum'] Many surface cues support three-dimensional shape perception, but people can sometimes still see shape when these features are missing – in extreme cases, even when an object is completely occluded, as when covered with a draped cloth. We propose a framework for 3D shape perception that explains…
Gunnar Schmidtmann, Nicholas Baker, Kevin J. Lande, Filipp Schmidt
Physiological and psychophysical evidence suggests that the visual system represents object outlines using prominent curvature features, particularly regions of extreme curvature (convex maxima and concave minima). These curvature extrema often coincide with points of high informational content (“surprisal”), but this…
Ryan L. Miller, David L. Sheinberg
Although visual object recognition is well-studied and relatively well understood, much less is understood about how shapes are recognized by touch and how such haptic stimuli might be compared to visual shapes. One might expect that the processes of visual and haptic object recognition engage identical brain…
Thomas P. O’Connell, Tyler Bonnen, Yoni Friedman, Ayush Tewari + 3 more
'Josh Tenenbaum' 'Vincent Sitzmann' 'Nancy Kanwisher'] Humans effortlessly infer the 3D shape of objects. What computations underlie this ability? Although various computational models have been proposed, none of them capture the human ability to match object shape across viewpoints. Here, we ask whether and how this…
Kun Qian, Silvio Ionta
Shape-contrast effects have been introduced to the investigations into face perception with the aim of exploring face adaptation in the context of norm-based coding. Research has indicated that shape-contrast effects occur even for shapes as complex as the human face. However, whether the complexity of face stimuli…
Yangwen Xu, Lorenzo Vignali, Federica Sigismondi, Davide Crepaldi + 2 more
We can sense an object’s shape by vision or touch. Previous studies suggested that the inferolateral occipitotemporal cortex (ILOTC) implements supramodal shape representations as it responds more to seeing or touching objects than shapeless textures. However, such activation in the anterior portion of the ventral…
Bushra Sadia, Ayberk Sadic, Mehmet Ayyıldız, Çağatay Başdoğan
Advancements in surface haptics technology have given rise to the development of interactive applications displaying tactile content on touch surfaces such as images, signs, diagrams, plots, charts, graphs, maps, networks, and tables. In those applications, users manually explore the touch surface to interact with the…
Sagi Eppel
Large vision language models (LVLM) are the leading A.I approach for achieving a general visual understanding of the world. Models such as GPT, Claude, Gemini, and LLama can use images to understand and analyze complex visual scenes. 3D objects and shapes are the basic building blocks of the world, recognizing them is…
Mikayla Cutler, Luke Baumel, Joseph Tocco, William Friebel + 2 more
Humans and neural networks use shape and texture information differently. While shape is the primary cue in human object recognition, neural networks are more biased towards texture cues. Many tests of shape vs. texture bias have focused on shape recognition from an object’s external contour. However, shape information…
Ryne Choi, Jacob Feldman, Manish Singh
Most existing research on the perception of 3D shape from motion has focused on rigidly moving objects. However, many natural objects deform non-rigidly, leading to image motion with no rigid interpretation. We investigated potential biases underlying the perception of non-rigid shape interpretations from motion. We…
Filipp Schmidt, Henning Tiedemann, Roland W. Fleming, Yaniv Morgenstern
'Yaniv Morgenstern'] Many objects and materials in our environment are subject to transformations that alter their shape. For example, branches bend in the wind, ice melts, and paper crumples. Still, we recognize objects and materials across these changes, suggesting we can distinguish an object’s original features…
Pierre Cutellic
This paper focuses on a specific aspect of human visual discrimination from computationally generated solutions for CAAD ends. The bottleneck at work here concern informational ratios of discriminative rates over generative ones. The amount of information that can be brought to a particular sensory modality for human…
Rushan Ziatdinov
The geometric shapes of the outside world objects hide an undisclosed emotional, psychological, artistic, aesthetic and shape-generating potential; they may attract or cause fear as well as a variety of other emotions. This suggests that living beings with vision perceive geometric objects within an…
Danaja Rutar, Alva Markelius, Konstantinos Voudouris, José Hernández-Orallo + 1 more
'José Hernández-Orallo' 'Lucy Cheke'] One of the core components of our world models is 'intuitive physics'—an understanding of objects, space, and causality. This capability enables us to predict events, plan action and navigate environments, all of which rely on a composite sense of objecthood. Despite its…
Christopher J. Kingsbury, Mathias O. Senge
We imagine molecules to be perfect, but rigidified units can be designed to bend from their ideal shape, discarding their symmetric elements as they process through vibrations and larger, more permanent distortions. The shape of molecules is either simulated or measured by crystallography and strongly affects chemical…
Jie Lin, Mingyuan Xu, Hongming Chen
Shape-based virtual screening is a widely utilized method in ligand-based de novo drug design, aiming to identify molecules in chemical libraries that share similar 3D shapes but simultaneously possess novel 2D chemical structures compared to the reference compound. As an emerging technology, generative model is an…