Patent application number | Description | Published |
20130216100 | OBJECT IDENTIFICATION USING SPARSE SPECTRAL COMPONENTS - One or more systems and/or techniques are provided to identify and/or classify objects of interest (e.g., potential granular objects) from a radiographic examination of the object. Image data of the object is transformed using a spectral transformation, such as a Fourier transformation, to generate image data in a spectral domain. Using the image data in the spectral domain, one or more one-dimensional spectral signatures can be generated and features of the signatures can be extracted and compared to features of one or more known objects. If one or more features of the signatures correspond (e.g., within a predetermined tolerance) to the features of a known object to which the feature(s) is compared, the object of interest may be identified and/or classified based upon the correspondence. | 08-22-2013 |
20140140601 | ITERATIVE IMAGE RECONSTRUCTION - One or more techniques and/or apparatuses described herein provide for reconstructing image data of an object under examination from measured projection data indicative of the object. The measured projection data is converted into image data using an iterative image reconstruction approach. The iterative image reconstruction approach may comprise, among other things, regularizing the image data to adjust a specified quality metric of the image data, identifying regions of the image data that represent aspects of the object that might generate inconsistencies in the measured projection data and correcting the measured projection data based upon such an identification, and/or weighting projections comprised in the measured projection data differently to reduce the influence of projections that respectively have a higher degree of inconsistency in the conversion from projection data to image data. | 05-22-2014 |
20140161333 | SYNTHETIC IMAGE GENERATION BY COMBINING IMAGE OF OBJECT UNDER EXAMINATION WITH IMAGE OF TARGET - Among other things, one or more techniques and/or systems for combining a three-dimensional image of a target with a three-dimensional image of an object that is under examination via radiation to generate a three-dimensional synthetic image are provided. Although the target is not actually comprised within the object under examination, the three-dimensional synthetic image is intended to cause the target to appear to be comprised within the object. In one embodiment, one or more artifacts may be intentionally introduced into the three-dimensional synthetic image that are not comprised within the three-dimensional image of the target and/or within the three-dimensional image of the object to generate a synthetic image that more closely approximates in appearance a three-dimensional image that would have been generated from an examination had the target been comprised within the object. | 06-12-2014 |
Patent application number | Description | Published |
20090143973 | IMAGE-GUIDED NAVIGATION EMPLOYING NAVIGATED POINT COMPUTATION METHOD AND SYSTEM - Provided is a method of image-guided navigation comprising determining a final navigated point in a three-dimensional reconstructed coordinate system based at least partially on two or more navigated points in a coordinate system associated with a two-dimensional array of image pixels and without specifying a coordinate of each of the two or more navigated points in a direction orthogonal to the two-dimensional array of image pixels, wherein each of the two or more navigated points is for a different position of a C-arm gantry. Also provided is an image-guided navigation system. | 06-04-2009 |
20100183209 | HISTOGRAM-BASED COMPOUND OBJECT SEPARATION - Certain imaging systems, such as automatic explosives detection systems, employ techniques that utilize image processing, feature extraction and decision making steps to detect threats in images. Such techniques use segmentation as a first algorithmic step, which extracts data representing objects from image data. Some of the extracted objects are actually composed of multiple distinct physical objects. For these compound objects discrimination becomes difficult because computed object properties are less specific than properties computed for a single physical object. A technique is described which includes splitting such compound objects by separating the data of each component from the rest of the data and using properties of density histograms based on voxel distributions in both density and spatial domains. | 07-22-2010 |
20110188751 | COMPOUND OBJECT SEPARATION - Representations of an object can comprise two or more separate sub-objects, producing a compound object. Compound objects can affect the quality of object visualization and threat identification. As provided herein, a compound object can be separated into sub-objects based on object morphological properties (e.g., an object's shape, surface area). Further, a potential compound object can be split into sub-objects, for example, eroding one or more outer layers of volume space (e.g., voxels) from the potential compound object. Additionally, a volume of a representation of the sub-objects in an image can be reconstructed, for example, by generating sub-objects that have a combined volume approximate to that of the compound object. Furthermore, sub-objects, which can be parts of a same physical object, but may have been erroneously split, can be identified and merged using connectivity and compactness based techniques. | 08-04-2011 |
20120087481 | CORRECTION FOR SOURCE SWITCHING IN MULTI ENERGY SCANNER - The techniques described herein provide for correcting projection data that comprises contamination due to source switching in a multi energy scanner. The correction is a multi-neighbor correction. That is, it uses data from at least two other views of an object (e.g., generally a previous view and a subsequent view) to correct a current view of the object. The multi-neighbor correction may use one or more correction factors to determine how much data from the other two views to use to correct the current view. The correction factor(s) are determined based upon a calibration that utilizes image space data and/or projection space data of a phantom. In this way, the correction factor(s) account for source leakage that occurs in multi energy scanners. | 04-12-2012 |
20120127174 | TWO-DIMENSIONAL COLORED PROJECTION IMAGE FROM THREE-DIMENSIONAL IMAGE DATA - A projection image of an object is colored using three-dimensional image data. This may be particularly useful in radiographic imaging applications, for example. In one embodiment, a colored synthetic image is rendered from a colored three-dimensional image of an object, and color components of pixels of the synthetic image are used to determine color components, or color values, for corresponding pixels of a projection image depicting a similar view of the object as the synthetic image. In this way, the two-dimensional projection image is colored similarly to the colored three-dimensional image. For example, the projection image may be colored based upon density (if the three-dimensional image is colored based upon density) so aspects of the object that attenuate a similar amount of radiation but have different densities may be colored differently. | 05-24-2012 |
20120170822 | EFFICIENT QUASI-EXACT 3D IMAGE RECONSTRUCTION ALGORITHM FOR CT SCANNERS - A CT scanner comprises: at least one source of X-rays and a multi-row detector array of arbitrary geometry, both supported so as rotate around an axis of rotation during a scan of an object translated along the axis, wherein data for each detector is generated as a function of the X-ray energy received; and a data processor configured so as to perform resampling of the data onto curves in a virtual detector array. The curves project onto tilted lines in a virtual flat detector as to enable tangential filtering of the data. | 07-05-2012 |
Patent application number | Description | Published |
20080247756 | Method and Apparatus for Transmitting Multiple Channels in a Wavelength Division Multiplexed (WDM) Optical Communication System With Reduced Raman Crosstalk and Nonlinear Distortions - A method and apparatus is provided for transmitting a WDM optical signal. The method begins by modulating an odd number of optical channels that are each located at a different wavelength from one another with (1) a respective one of a plurality of information-bearing electrical signals that all embody the same broadcast information and (2) a respective one of a plurality of RF signals having a common functional broadcast waveform, at least one of the RF signals being out of phase with respect to remaining ones of the plurality of RF signals. Each of the modulated optical channels are multiplexed to form a WDM optical signal. The WDM optical signal is forwarded onto an optical transmission path. | 10-09-2008 |
20100303471 | BURST MODE LASER TRANSMITTER HAVING AN EXTREMELY FAST RESPONSE TIME WHEN TRIGGERED FROM A TOTALLY OFF STATE - A burst mode laser transmitter includes a burst mode laser diode and a controller having an input for receiving an RF data signal. The controller includes a triggering arrangement and a modulation arrangement. The triggering arrangement is configured to bias the laser diode to an on-state bias level when an RF data signal is present at the input to the controller and to an off-state bias level when no RF data signal is present at the input to the controller. The modulation arrangement is configured to modulate the on-state bias level at which the laser diode is biased with the RF data signal only when the RF data signal is present at the input of the controller. | 12-02-2010 |
20100316382 | Ramen Backpumped Near-Zero Dispersion CWDM System and Method - A system includes an optical transmitter portion, an optical fiber, an optical receiver portion, a laser portion and a combiner portion. Optical signals may be launched by the optical transmitter portion at very low power levels to avoid Raman-induced interactions between the co-propagating signals along the optical fiber. The laser portion and the combiner portion may apply a back-pumped laser signal to the optical fiber. The back-pumped laser signal provides a Raman gain that amplifies the co-propagating signals to a minimum power level such that the optical receiver portion can detect the co-propagating signals within a predetermined acceptable carrier-to-noise ratio. | 12-16-2010 |
20140079395 | Raman Crosstalk Mitigation in a Multi-Wavelength System Utilizing an Optical Equalizing Signal Modulated with Composite Bandwidth-Limited Data Sources - A network element comprising a phase matched or phase controlled interconnect configured to receive a data signal sample, a Raman equalization transmitter, and a Raman crosstalk equalization conditioning circuit configured to generate a Raman mitigation signal using the data signal sample to be transmitted by the Raman equalization transmitter. Included is a method comprising multiplexing incoherent data signals with a video signal and a Raman mitigation signal to be co-propagated on a single optical fiber, wherein the Raman mitigation signal is selected to destructively interfere with Raman crosstalk noise induced on the video signal. Also included is a system comprising a video signal component configured to transmit a video signal, data stream signal components configured to transmit a data stream signals, a Raman crosstalk equalization system configured to transmit a Raman mitigation signal, and an optical multiplexer configured to multiplex the signals for co-propagation onto a single transmission fiber. | 03-20-2014 |
Patent application number | Description | Published |
20090249438 | MOVING SECURITY FOR VIRTUAL MACHINES - A method of maintaining multiple firewalls on multiple host nodes. Each host node runs one or more virtual machines. For at least a first host node, the method maintains multiple sets of policies for multiple virtual machines that run on the first host node. The method, upon detecting that a particular virtual machine has been moved from the first host node to a second host node, removes a set of policies associated with the particular virtual machine from the first host node and supplies the set of policies to the second host node. | 10-01-2009 |
20090249470 | COMBINED FIREWALLS - A method of providing a firewall to protect a set of virtual machines on a host node that is one of multiple host nodes that host virtual machines. The method stores a table of allowed connections for each virtual machine on the host node. Upon a particular virtual machine moving from the host node to another host node, the method deletes records of a first set of allowed connections that each identify the particular virtual machine and do not identify any other virtual machine in the set of virtual machines. Also upon the virtual machine moving, the method edits records of a second set of allowed connections, each identifying the particular machine and one other virtual machine in the set of virtual machines on the first host node, to remove an identifier of the particular virtual machine. | 10-01-2009 |
20090249471 | REVERSIBLE FIREWALL POLICIES - A method of determining whether to allow multiple data packets to pass a firewall, each data packet having a source address and a destination address. The method evaluates a data packet by using a first set of policies when no previous packet with an opposite address has been allowed under the first set of policies. Two packets have opposite addresses when a source address of the first of the two packets is the same as the destination address of the second of the two packets and the destination address of the first packet is the same as the source address of the second packet. The method evaluates the data packet using a second set of policies when a previous packet with an opposite address has been allowed under the first set of policies. | 10-01-2009 |
20090249472 | HIERARCHICAL FIREWALLS - A method of implementing a firewall that receives a layer of policies from each of multiple entities with different levels of authority. The method evaluates received packets based on the received layers of policies. A layer of policies of a higher level of authority can accept a received packet, block the received packet, or delegate a decision of whether to accept or block the received packet to a layer of policies of a lower level of authority. | 10-01-2009 |
20110145912 | MEDIA ACCESS CONTROL ADDRESS TRANSLATION IN VIRTUALIZED ENVIRONMENTS - Some embodiments provide a method that transmits network packets through a network security device. The method receives receiving a request to send a network packet from a first computing device to a second computing device over a network that includes the network security device. The network packet includes a first network interface identifier for identifying the first computing device on the network and a second network interface identifier for identifying the second computing device on the network. The method identifies third and fourth network interface identifiers that cause the network packet to be transmitted through the network security device when the network packet is transmitted using the third and fourth network interface identifiers. The method transmits the network packet over the network through the network security device using the third and fourth network interface identifiers. The method transmits the network packet to the second computing device using the first and second network interface identifiers. | 06-16-2011 |
20140130146 | MEDIA ACCESS CONTROL ADDRESS TRANSLATION IN VIRTUALIZED ENVIRONMENTS - A method and a network device are provided to transmit network packets through a network security device. The method, performed by the network device, receives a request to send a network packet from a first computing device to a second computing device over a network that includes the network device and the network security device. The network packet includes a first network interface identifier for identifying the first computing device and a second network interface identifier for identifying the second computing device. The method identifies third and fourth network interface identifiers that cause the network packet to be transmitted through the network security device. The method transmits the network packet over the network through the network security device using the third and fourth network interface identifiers. The method transmits the network packet to the second computing device using the first and second network interface identifiers. | 05-08-2014 |
Patent application number | Description | Published |
20090272682 | Filtered Water Enhancements - A system for enhancing water is described. The system includes a housing with an inlet and an outlet, source water at the inlet, which can flow through a filter component in the housing and thus become treated water, and at least one enhancement module that can dispense an enhancement into the treated water as it flows through the outlet. Water can flow through the system only by the force of gravity, pressure in a building's water line, and/or hand pumps. Enhancement that can be used in the system include flavorings, dyes, minerals, vitamins, herbal supplements, nutritional supplements, phytonutrients, probiotics, homeopathic remedies, amino acids, enzymes, hormones, standard prescription medications, and over-the-counter medications, and combinations thereof. A control is also provided, through which a consumer can regulate an amount of enhancement that is added to the treated water. | 11-05-2009 |
20100166919 | Control Scheme for Enhanced Filtered Water Systems - An enhancement control system that can be used as part of an enhanced water system to produce enhanced filtered water is described. The enhancement control system includes at least one enhancement delivery element that can dispense an enhancement(s) into filtered water in response to an enhancement delivery instruction(s). The enhancement control system can also include an input element that can enable transmittal of the enhancement delivery instruction(s) from a user to the enhancement delivery element(s). The control system can also include a memory element that can store information about the user and the user's preferences and information about the enhanced water system. The control system can also include a communication element that can provide information from the enhanced water system to the user. The control system can also include a monitor element that can gather data from outside the enhanced water system, such as user health information or environmental information, and provide the data to the enhanced water system. In some embodiments, a control logic element can be used to coordinate and control operation of the elements of the enhanced water system. | 07-01-2010 |
20110024456 | Control Scheme For Enhanced Filtered Water Systems - An enhancement control system that can be used as part of an enhanced water system to produce enhanced filtered water is described. The enhancement control system includes at least one enhancement delivery element that can dispense an enhancement(s) into filtered water in response to an enhancement delivery instruction(s). The enhancement control system can also include an input element that can enable transmittal of the enhancement delivery instruction(s) from a user to the enhancement delivery element(s). The control system can also include a memory element that can store information about the user and the user's preferences and information about the enhanced water system. The control system can also include a communication element that can provide information from the enhanced water system to the user. The control system can also include a monitor element that can gather data from outside the enhanced water system, such as user health information or environmental information, and provide the data to the enhanced water system. In some embodiments, a control logic element can be used to coordinate and control operation of the elements of the enhanced water system. | 02-03-2011 |
Patent application number | Description | Published |
20130340044 | TRANSFERRING AN ACCOUNT BETWEEN DEVICES - A method for transferring an account associated with a first device to a second device is disclosed. The method includes: initiating, by the second device, a message intersession with a third party device; receiving, at the second device and from a server, an indication that the second device is using a known identity associated with the first device; and providing, by the second device, an instruction for transferring an account from the first device to the second device. | 12-19-2013 |
20140078241 | CAMERA MANIPULATION DURING A VIDEO CONFERENCE - A method and system for enabling a first device to change a viewed image of at least one of the first device and a second device, during a video conference, are disclosed. The method includes: receiving a manipulation instruction, at a first device, for a selected target image, wherein the selected target image includes a portion of images displayed on a display of the first device during a video conference with a second device; comparing the manipulation instruction to an instruction store; and changing, on at least one of the first device and the second device, a view of the selected target image according to the manipulation instruction to achieve a manipulated selected target image. | 03-20-2014 |
20140160227 | RATE CONTROL FOR A COMMUNICATION - Methods and systems for communicating with rate control. A communication is sent and received from a first device to a second device over a network, wherein the communication comprises at least one audio stream and a second communication stream. A capacity of the network is probed at the first device for the sending and receiving the communication. A presence of a voice in the at least one audio stream is detected at the first device via a voice activity detection of the at least one audio stream. A rate limit is set for the sending and receiving the communication at the first device based on the capacity of the network and the detection of the presence of the at least one audio stream. | 06-12-2014 |