517 results about "Fluoroscopic image" patented technology

Exemplary systems and methods are provided by which multiple persons in remote physical locations can collaboratively interactively visualize a 3D data set substantially simultaneously. In exemplary embodiments of the present invention, there can be, for example, a main workstation and one or more remote workstations connected via a data network. A given main workstation can be, for example, an augmented reality surgical navigation system, or a 3D visualization system, and each workstation can have the same 3D data set loaded. Additionally, a given workstation can combine real-time imagining with previously obtained 3D data, such as, for example, real-time or pre-recorded video, or information such as that provided by a managed 3D ultrasound visualization system. A user at a remote workstation can perform a given diagnostic or therapeutic procedure, such as, for example, surgical navigation or fluoroscopy, or can receive instruction from another user at a main workstation where the commonly stored 3D data set is used to illustrate the lecture. A user at a main workstation can, for example, see the virtual tools used by each remote user as well as their motions, and each remote user can, for example, see the virtual tool of the main user and its respective effects on the data set at the remote workstation. For example, the remote workstation can display the main workstation's virtual tool operating on the 3D data set at the remote workstation via a virtual control panel of said local machine in the same manner as if said virtual tool was a probe associated with that remote workstation. In exemplary embodiments of the present invention each user's virtual tools can be represented by their IP address, a distinct color, and / or other differentiating designation. In exemplary embodiments of the present invention the data network can be either low or high bandwidth. In low bandwidth embodiments a 3D data set can be pre-loaded onto each user's workstation and only the motions of a main user's virtual tool and manipulations of the data set sent over the network. In high bandwidth embodiments, for example, real-time images, such as, for example, video, ultrasound or fluoroscopic images, can be also sent over the network as well.

According to an exemplary embodiment a targeting method for targeting a first object from an entry point to a target point in an object (110) under examination is provided, wherein the method comprises selecting a two-dimensional image (301) of the object under examination depicting the entry point (305) and the target point (303) and determining a planned path (304) from the entry point to the target point, wherein the planned path has a first direction. Furthermore, the method comprises recording data representing a fluoroscopic image of the object under examination, wherein the fluoroscopic image is recorded under a second direction so that a normal of the image coincide with the first direction and determining whether the first object is on the determined planned path based on shape and / or position of the projection of the first object in the fluoroscopic image.

A Method and apparatus is provided for producing and displaying pairs of spectrally-multiplexed gray-scale or color images of 3-D scenery for use in stereoscopic viewing thereof. In one illustrative embodiment of the present invention, pairs of spectrally-multiplexed color images of 3-D scenery are produced using a camera system records left and right color perspective images thereof and optically processes the spectral components thereof. In another illustrative embodiment of the present invention, pairs of spectrally-multiplexed color images of 3-D imagery are produced within a computer-based system which generates left and right perspective images thereof using computer graphic processes, and processes the pixel data thereof using pixel-data processing methods of the present invention. Thereafter, produced pairs of spectrally-multiplexed images can be recorded on diverse recording mediums, and accessed by the display system of the present invention for real-time display on diverse display surfaces including, for example, flat-panel liquid-crystal display (LCD) surfaces, CRT display surfaces, projection display screen surfaces, and electro-luminescent panel display surfaces. In the various illustrative embodiments of the display system, stereoscopic viewing of 3-D imagery is facilitated by wearing electrically passive or electrically-active light polarizing spectacles during the image display process of the present invention.

A system and method for populating a database with a set of image sequences of an object is disclosed. The database is used to detect localization of a guidewire in the object. A set of images of anatomical structures is received in which each image is annotated to show a guidewire, catheter, wire tip and stent. For each given image a Probabilistic Boosting Tree (PBT) is used to detect short line segments of constant length in the image. Two segment curves are constructed from the short line segments. A discriminative joint shape and appearance model is used to classify each two segment curve. A shape of an n-segment curve is constructed by concatenating all the two segment curves. A guidewire curve model is identified that includes a start point, end point and the n-segment curve. The guidewire curve model is stored in the database.

In a method and apparatus for automatic marker-free fusion (matching) of 2D fluoroscopic C-arm images with preoperative 3D images using an intraoperatively acquired 3D data record, an intraoperative 3D image is obtained using a C-arm x-ray system, image-based matching of an existing preoperative 3D image in relation to the intraoperative 3D image is undertaken, which generates a matching matrix of a tool plate attached to the C-arm system is matched in relation to a navigation system, a 2D fluoroscopic image to be matched is obtained, with the C-arm of the C-arm system in any arbitrary location, a projection matrix for matching the 2D fluoroscopic image in relation to the 3D image is obtained, and the 2D fluoroscopic image is fused (matched) with the preoperative 3D image on the basis of the matching matrix and the projection matrix.

A smart camera system provides focused images to an operator at a host computer by processing digital images at the imaging location prior to sending them to the host computer. The smart camera has a resident digital signal processor for preprocessing digital images prior to transmitting the images to the host. The preprocessing includes image feature extraction and filtering, convolution and deconvolution methods, correction of parallax and perspective image error and image compression. Compression of the digital images in the smart camera at the imaging location permits the transmission of very high resolution color or high resolution grayscale images at real-time frame rates such as 30 frames per second over a high speed serial bus to a host computer or to any other node on the network, including any remote address on the Internet.