Abstract: This document discusses, among other things, systems and methods for efficiently calculating a colon segmentation from one or more candidate virtual three-dimensional objects. A sequence of image scans are analyzed and regions that represent air-filled objects and tagged-stool are identified as candidate segments. A characteristic path is generated for each candidate segment. The paths are joined using a cost network and re-oriented to be consistent with a typical flythrough path. The connected path is then used to generate a continuous volumetric virtual object.

Abstract: A method including searching image data corresponding to a series of axial image slices with a processor, searching axial image slices from a starting image slice and calculating a confidence score that an image slice includes a cross-section image of an aorta, identifying an image slice containing at least one seed disk, including an ascending aorta seed disk, from candidate image slices identified according to the confidence score, and growing a 3D segmentation of the ascending aorta by stacking ascending aorta image disks included in consecutive image slices beginning from the ascending aorta seed disk.

Abstract: This document discusses, among other things, systems and methods for efficiently using surface data to calculate a characteristic path of a virtual three-dimensional object. A surface mesh is constructed using segmented volumetric data representing the object. Geodesic distance from a reference point is calculated for each shape element in the surface mesh. The geodesic distance values are used to produce rings. Ring centroids are computed and connected to form the characteristic path, which is optionally pruned and smoothed.

Abstract: A system to facilitate electronic commerce associated with an online marketplace, program product, and methods are provided. Electronic commerce over a computer network is facilitated by a computer system that forms a community of computers that enable the users to buy and sell items in an online marketplace. To list the item on an online marketplace website, for example, the selling user posts an item with a seller marketplace item management website by completing an online-item marketplace item creation form. The form requires input related to the item, such as a description, sale price or minimum bid, shipping instructions, and the like, and an image file or image file location illustrating the marketplace item. The seller marketplace item management server provides a marketplace administrator server the marketplace item data including original image file or image file location.

Abstract: A method of operating on volumetric imaging data representing organ anatomy includes determining whether a polyp location within a specified range from a viewing point is visible, or hidden by an anatomical feature, and marking the polyp as visible or hidden with a viewable indicator.

Abstract: A system to facilitate electronic commerce associated with an online marketplace, program product, and methods are provided. Electronic commerce over a computer network is facilitated by a computer system that forms a community of computers that enable the users to buy and sell items in an online marketplace. To list the item on an online marketplace website, for example, the selling user posts an item with the marketplace website by completing an online-item creation form. The form requires input related to the item, such as a description, sale price or minimum bid, shipping instructions, and the like. The selling user uploads an image file of the item to the marketplace website's server. The server contains a random image size generator that generates at least two additional images of the item that are presented to the selling user for selection of the image that the selling user wants to include on the selling website to advertise the item.

Abstract: Electronic commerce over a publicly accessible computer network such as the Internet is facilitated and leveraged by a computer system that forms a community of computer user parties based on personal and business connections of the parties involved. Personal connections are created between users by invitation and mutual acceptance. Business connections are created between users when a transaction takes place between those users. Users search to perform any one or more of a variety of actions such as to purchase products, browse departments and categories for purchasing products, or explore the connections between the parties involved to find items to buy. Different groupings of the parties involved may be the users themselves and other buyers/sellers in the business network, the users themselves and their friends in the personal networks, or some combination of buyers/sellers and friends from each of the types of networks.