Arizona State University

New York University

The Ohio State University

Gi, LLC

Yalin Wang

Zhong-Lin Lu

Shing-Tung Yau

Dale Owen Royer

Song Zhang

Duyan Ta

Yanshuai Tu

A sensory mapping method for a human brain is disclosed. The method includes the steps of flattening the cortical surface of the human brain, projecting functional imaging data onto the flattened surface, smoothing the functional imaging data, generating a sensory map, registering sensory maps across individuals and analyzing the maps in the common space. The flattening utilizes a conformal parametrization method. The smoothing utilizes a topological smoothing method that utilizes a diffeomorphic smoother. The registering is diffeomorphic. The sensory mapping method may further include a step of processing the functional imaging data to produce topological results.

Methods and systems for precise quantification of human sensory cortical areas

Method and systems provide a tool to quantify sensory maps of the brain. Cortical surfaces are conformally mapped to a topological disk where local geometry structures are well preserved. Retinotopy data are smoothed on the disk domain to generate a curve that best fits the retinotopy data and eliminates noisy outliers. A Beltrami coefficient map is obtained, which provides an intrinsic conformality measure that is sensitive to local changes on the surface of interest. The Beltrami coefficient map represents a function where the input domain is locations in the visual field and the output is a complex distortion measure at these locations. This function is also invertible. Given the boundaries and the Beltrami map of a flattened cortical region, a corresponding visual field can be reconstructed. The Beltrami coefficient map allows visualization and comparison of retinotopic map properties across subjects in the common visual field space.

Apparatus and method for quantification of the mapping of the sensory areas of the brain

A method and associated apparatus for capturing an image of a 3D object () which encodes the surface geometry of at least a portion of the object, comprising: 1. projecting () a plurality of fringe patterns (A,A) onto the object; 2. capturing () phase alterations in reflections of the fringe patterns (B,B) from the object; 3. projecting a uniform image (A) onto the object; 4. capturing a reflection of the uniform image (B) from the object; and 5. combining () captured phase alterations and captured uniform image reflection on a pixel-by-pixel basis, thereby forming a holoimage representation of the object.

Method and apparatus for absolute-coordinate three-dimensional surface imaging

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Tempe, AZ, United States of America

Yalin Wang