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A Method for 3D Reconstruction and Virtual Reality Analysis of Glial and Neuronal Cells
Published on: September 28, 2019
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Object segmentation controls image reconstruction from natural scenes.
1Laboratoire des Systèmes Perceptifs, Département d'études cognitives, Ecole Normale Supérieure, PSL Research University, CNRS, Paris, France.
Plos Biology
|August 23, 2017
Summary
The brain prioritizes inferred environmental structure over raw visual input for scene interpretation. This integrated perceptual mechanism rapidly retunes early visual processing for efficient feature extraction.
Area of Science:
- Neuroscience
- Computational Vision
- Perception
Background:
- Retinal images are imperfect representations of the physical world.
- Visual cortex must distinguish relevant environmental features from irrelevant image details.
Purpose of the Study:
- To evaluate the roles of inferred environmental structure versus raw image content in visual signal reconstruction.
- To investigate the mechanisms underlying visual perception and feature extraction.
Main Methods:
- Developed a novel experimental paradigm to isolate and assess two classes of visual features.
- Measured the impact of inferred structure and image content on signal reconstruction from corrupted images.
Main Results:
- Visual perception is primarily driven by inferred environmental structure, not raw image data.
- This inferential process is spatially global, rapid, and impacts early visual cortex.
- Local visual processing is retuned for enhanced feature extraction without changing transduction noise.
Conclusions:
- Challenges the separation of bottom-up and top-down perception.
- Proposes an integrated perceptual mechanism where these modes are unified.
- Suggests that environmental inference is a key component of efficient visual processing.
