13531 results about "Performed Imaging" patented technology

Systems and methods for registering, verifying, dynamically referencing, and navigating an anatomical region of interest of a patient are provided. In one embodiment, the anatomical region of interest is imaged using an imaging device such as, for example, an x-ray device. A tracked registration device may then be removably inserted in a conduit within the anatomical region and the position of the registration device may be sampled by a tracking device as the registration device is moved within the anatomical region through the catheter. The sampled position data is registered to the image data to register the path of the conduit to the anatomical region of interest. The same or a similar device may be used to dynamically reference the movements affecting the anatomical region and modify the registration in real time. The registration may also be verified.

In one embodiment of the invention, a tool tracking system is disclosed including a computer usable medium having computer readable program code to receive images of video frames from at least one camera and to perform image matching of a robotic instrument to determine video pose information of the robotic instrument within the images. The tool tracking system further includes computer readable program code to provide a state-space model of a sequence of states of corrected kinematics information for accurate pose information of the robotic instrument. The state-space model receives raw kinematics information of mechanical pose information and adaptively fuses the mechanical pose information and the video pose information together to generate the sequence of states of the corrected kinematics information for the robotic instrument. Additionally disclosed are methods for image guided surgery.

An apparatus for optically analyzing a substrate. The apparatus includes: (a) a light source for directing light onto the substrate; (b) optics for creating an optical path from light reflected from the substrate; and (c) a multiple wavelength imaging optical subsystem positioned in the optical path. The multiple wavelength imaging optical subsystem includes: (i) one or more filters which are capable of one or both of: (1) being alternatively or sequentially interposed in the optical path to extract one or more of wavelengths or wavelength bands of interest; or (2) having their wavelength selectivity adjusted to extract one or more wavelengths or wavelength bands of interest; and (ii) one or more imaging devices positioned to image the extracted wavelengths or wavelength bands of interest from the one or more filters; (d) an imaging device positioned in the optical path. Also a method is included, making use of the apparatus for analysis of a substrate.

Quantitative object and spatial arrangement-level analysis of tissue are detailed using expert (pathologist) input to guide the classification process. A two-step method is disclosed for imaging tissue, by classifying one or more biological materials, e.g. nuclei, cytoplasm, and stroma, in the tissue into one or more identified classes on a pixel-by-pixel basis, and segmenting the identified classes to agglomerate one or more sets of identified pixels into segmented regions. Typically, the one or more biological materials comprises nuclear material, cytoplasm material, and stromal material. The method further allows a user to markup the image subsequent to the classification to re-classify said materials. The markup is performed via a graphic user interface to edit designated regions in the image.

The color image sensor generates a color image signal representing a subject and includes an optical substrate and a light sensor. The optical substrate includes spatially-separated imaging elements. Each of the imaging elements is configured to image light of a respective color. The light sensor includes regions of sensor elements disposed opposite respective ones of the imaging elements. The sensor elements in each of the regions are operable to generate a component of the color image signal in response to the light of the respective color incident on them.

An electronic camera is provided with a touchscreen. When a cameraman touches the touchscreen on a principal subject in a captured image shown on the touchscreen, the touched portion is determined and the focus and exposure are adjusted in conformity with the principal subject. When the image is designated to be stored, positional information on the principal subject as well as image information is stored into a built-in memory or a detachable external memory. For this reason, wherever the principal subject is located on the image, the image-capturing is performed with favorable results. The positional information on the principal subject is utilized for printing or reproducing the image so as to perform image tone corrections such as correction of brightness and skin pigmentation in an area including the principal subject, so that a high-quality image can be printed or reproduced.

The present invention is related to a system for optical coherence tomographic imaging of turbid (i.e., scattering) materials utilizing multiple channels of information. The multiple channels of information may be comprised and encompass spatial, angle, spectral and polarization domains. More specifically, the present invention is related to methods and apparatus for utilizing optical sources, systems or receivers capable of providing (source), processing (system) or recording (receiver) a multiplicity of channels of spectral information for optical coherence tomographic imaging of turbid materials. In these methods and apparatus the multiplicity of channels of spectral information that can be provided by the source, processed by the system, or recorded by the receiver are used to convey simultaneously spatial, spectral or polarimetric information relating to the turbid material being imaged tomographically. The multichannel optical coherence tomographic methods can be incorporated into an endoscopic probe for imaging a patient. The endoscope comprises an optical fiber array and can comprise a plurality of optical fibers adapted to be disposed in the patient. The optical fiber array transmits the light from the light source into the patient, and transmits the light reflected by the patient out of the patient. The plurality of optical fibers in the array are in optical communication with the light source. The multichannel optical coherence tomography system comprises a detector for receiving the light from the array and analyzing the light. The methods and apparatus may be applied for imaging a vessel, biliary, GU and/or GI tract of a patient.

Nonuniformity in an organic EL display device is effectively detected. All display pixels of an organic EL panel are turned on and the display is photographed with a digital camera. A computer performs image processing of the photographed image to detect an area in which unevenness exists. Then, a V-I curve of each pixel in the area is measured to calculate necessary correction values. The calculated correction values are stored in a memory for use in correcting a signal input to the organic EL panel.

Preferred embodiments of the present invention are directed to systems for phase measurement which address the problem of phase noise using combinations of a number of strategies including, but not limited to, common-path interferometry, phase referencing, active stabilization and differential measurement. Embodiment are directed to optical devices for imaging small biological objects with light. These embodiments can be applied to the fields of, for example, cellular physiology and neuroscience. These preferred embodiments are based on principles of phase measurements and imaging technologies. The scientific motivation for using phase measurements and imaging technologies is derived from, for example, cellular biology at the sub-micron level which can include, without limitation, imaging origins of dysplasia, cellular communication, neuronal transmission and implementation of the genetic code. The structure and dynamics of sub-cellular constituents cannot be currently studied in their native state using the existing methods and technologies including, for example, x-ray and neutron scattering. In contrast, light based techniques with nanometer resolution enable the cellular machinery to be studied in its native state. Thus, preferred embodiments of the present invention include systems based on principles of interferometry and/or phase measurements and are used to study cellular physiology. These systems include principles of low coherence interferometry (LCI) using optical interferometers to measure phase, or light scattering spectroscopy (LSS) wherein interference within the cellular components themselves is used, or in the alternative the principles of LCI and LSS can be combined to result in systems of the present invention.

An apparatus for imaging one or more selected fluorescence indications from a microfluidic device. The apparatus includes an imaging path coupled to least one chamber in at least one microfluidic device. The imaging path provides for transmission of one or more fluorescent emission signals derived from one or more samples in the at least one chamber of the at least one microfluidic device. The chamber has a chamber size, the chamber size being characterized by an actual spatial dimension normal to the imaging path. The apparatus also includes an optical lens system coupled to the imaging path. The optical lens system is adapted to transmit the one or more fluorescent signals associated with the chamber.

An image processing apparatus comprises: an image acquisition unit for acquiring a plurality of original images acquired by imaging a specimen including a structure in various focal positions using a microscope apparatus; an image generation unit for generating, on the basis of the plurality of original images, a first image on which blurring of an image of the structure has been reduced in comparison with the original images; and an analysis unit for obtaining information relating to the structure included in the first image by applying image analysis processing to the first image. The image generation unit selects a part of the original images having focal positions included within a smaller depth range than a thickness of the specimen from the plurality of original images obtained from the specimen, and generates the first image using the selected original images.