Interface-based modeling and design of three dimensional spaces using two dimensional representations are provided herein. An example method includes converting a three dimensional space into a two dimensional space using a map projection schema, where the two dimensional space is bounded by ergonomic limits of a human, and the two dimensional space is provided as an ergonomic user interface, receiving an anchor position within the ergonomic user interface that defines a placement of an asset relative to the three dimensional space when the two dimensional space is re-converted back to a three dimensional space, and re-converting the two dimensional space back into the three dimensional space for display along with the asset, within an optical display system.

Methods for creation and use (e.g., for navigation) of displays of flattened (e.g., curvature-straightened) 3-D reconstructions of tissue surfaces, optionally including reconstructions of the interior surfaces of hollow organs. In some embodiments, data comprising a 3-D representation of a tissue surface (for example an interior heart chamber surface) are subject to a geometrical transformation allowing the tissue surface to be presented substantially within a single view of a flattened reconstruction. In some embodiments, a catheter probe in use near the tissue surface is shown in positions that correspond to positions in 3-D space sufficiently to permit navigation; e.g., the probe is shown in flattened reconstruction views nearby view regions corresponding to regions it actually approaches. In some embodiments, automatic and/or easily triggered manual view switching between flattened reconstruction and source reconstruction views is implemented.

A system determines an object-design for a three-dimensional model of an object. The object-design may exhibit a design continuity. The system breaks the object-design in to spatial patterns corresponding to the discrete surfaces making up the outward surface of the object. The system then generates flattened patterns by projecting the spatial patterns into a two-dimensional plane. The system prints the flattened patterns on to designated regions of material sheets in an orientation that preserves the design continuity of the object-design. The regions may be extracted from the sheets and then joined at their edges to form a cover for object that exhibits the continuity of the object design.

Methods for creation and use (e.g., for navigation) of displays of flattened (e.g., curvature-straightened) 3-D reconstructions of tissue surfaces, optionally including reconstructions of the interior surfaces of hollow organs. In some embodiments, data comprising a 3-D representation of a tissue surface (for example an interior heart chamber surface) are subject to a geometrical transformation allowing the tissue surface to be presented substantially within a single view of a flattened reconstruction. In some embodiments, a catheter probe in use near the tissue surface is shown in positions that correspond to positions in 3-D space sufficiently to permit navigation; e.g., the probe is shown in flattened reconstruction views nearby view regions corresponding to regions it actually approaches. In some embodiments, automatic and/or easily triggered manual view switching between flattened reconstruction and source reconstruction views is implemented.

A method for producing an image of a body tissue surface. The method includes transforming a source 3-D model of the body tissue surface into a flattened model comprising details of the body tissue surface represented visually on an unwrapped and flattened surface, wherein the flattened model represents transformed positions of the source 3-D model of the body tissue surface defined between a first edge and a second edge. The first edge is formed about a lumen defined by the body tissue surface, and the body tissue surface projects about the lumen to the second edge. The method further includes producing an image from the flattened model.

Systems and methods for rendering foldable products are described. According to certain aspects, an electronic device enables a user to select a digital content item and a section of a foldable product on which to render the digital content item. Based on certain parameters associated with the section, the electronic device may calculate a position within a cell for the digital content item, where the cell may be part of a bounding box associated with the section. The electronic device may render, within a user interface, the a digital design of the foldable product with the digital content item rendered on the section and positioned at the position within the cell.

A method for visualizing a tubular object from a set of volumetric data may include the steps of: determining a viewing direction for the tubular object; selecting a constraint subset of the tubular object within the volumetric data; defining a cut-surface through the volumetric data and including the constraint subset of the tubular object within the volumetric data; and rendering an image based upon the determined viewing direction and the volumetric data of the tubular object along the intersection of the volumetric data and the defined cut-surface. Additionally or alternatively, the method may identify a plurality of bifurcations in the tubular object; assign a weighting factor to each identified bifurcation; determine a bifurcation normal vector associated with each bifurcation; determine a weighted average of the bifurcation normal vectors; and render an image of the volumetric data from a perspective parallel to the weighted average of the bifurcation normal vectors.

An apparatus includes a first acquisition unit configured to acquire first image data obtained by capturing an image of an object, a second acquisition unit configured to acquire a three-dimensional shape of the object based on second image data obtained by irradiating the object with pattern light and capturing an image of the object, a determination unit configured to determine a flat area on the object based on the three-dimensional shape of the object, and an evaluation unit configured to evaluate a surface characteristic of the flat area on the object based on the first image data.

A system determines an object-design for a three-dimensional model of an object. The object-design may exhibit a design continuity. The system breaks the object-design in to spatial patterns corresponding to the discrete surfaces making up the outward surface of the object. The system then generates flattened patterns by projecting the spatial patterns into a two-dimensional plane. The system prints the flattened patterns on to designated regions of material sheets in an orientation that preserves the design continuity of the object-design. The regions may be extracted from the sheets and then joined at their edges to form a cover for object that exhibits the continuity of the object design.

Techniques for integrating a product model into a user supplied image are presented herein. A method is disclosed that includes receiving an image of a user space from a user, receiving one or more definitions that describe the user space, retrieving, based on search terms provided by the user, one or more items available at a networked marketplace that fit within the definitions of the user space, and generating a composite image by overlaying an image of one of the items on the image of the user space. The method further scales the image of the item according to the definition of the user space and the physical dimensions of the item, and depicts virtual guidelines indicating a current scale of the image of the item.