691 results about "Video imaging" patented technology

An implantable medical device including a porous membrane that is treated with a hydrophilic substance to obtain rapid optimum visualization using technology for viewing inside of a mammalian body. These technologies include ultrasound echocardiography and video imaging such as that used during laparoscopic procedures.

A method of operating a general purpose handheld communication device to monitor traffic events is disclosed. The handheld communication device is detachably mountable on a vehicle and includes a motion sensor, a video imaging sensor, a data processor, data storage medium, and data communication module. The method includes acquiring motion data using the motion sensor; identifying a traffic event based on the motion data; acquiring visual data using the video imaging sensor; saving data that includes the acquired visual data and motion data on the data storage medium; and communicating the saved data using the communication module.

A markerless method is described for tracking the motion of subjects in a three dimensional environment using a model based on linked kinematic chains. The invention is suitable for tracking robotic, animal or human subjects in real-time using a single computer with inexpensive video equipment, and does not require the use of markers or specialized clothing. A simple model of rigid linked segments is constructed of the subject and tracked using three dimensional volumetric data collected by a multiple camera video imaging system. A physics based method is then used to compute forces to align the model with subsequent volumetric data sets in real-time. The method is able to handle occlusion of segments and accommodates joint limits, velocity constraints, and collision constraints and provides for error recovery. The method further provides for elimination of singularities in Jacobian based calculations, which has been problematic in alternative methods.

A tubular suction tool for accessing an anatomic surface or anatomic space and particularly the pericardium to access pericardial space and the epicardial surface of the heart to implant cardiac leads in a minimally invasive manner are disclosed. The suction tool incorporates a suction pad concave wall defining a suction cavity, a plurality of suction ports arrayed about the concave wall, and a suction lumen, to form a bleb of tissue into the suction cavity when suction is applied. The suction cavity extends along one side of the suction pad, so that the suction pad and suction cavity can be applied tangentially against a tissue site. The suction tool can incorporate light emission and video imaging of tissue adjacent the suction pad. A working lumen terminating in a working lumen port into the suction cavity enables introduction of tools, cardiac leads, and other instruments, cells, drugs or materials into or through the tissue bleb drawn into the suction cavity.

A vehicular video mirror system comprises an interior electrochromic mirror having a transflective mirror reflector and a video screen disposed behind the mirror reflector so that the presence of the video screen is substantially unobservable to a driver of the vehicle until the video screen is actuated to emit light that passes through the electrochromic reflective element to be viewed by the driver of the vehicle. Control circuitry receives a signal indicative of selection of a reverse gear of the vehicle by the driver and actuates the video screen in order to display video images captured by a video imaging device disposed to the rear of the vehicle and having a field of view rearward of and external to the vehicle.

A video imaging system includes a digital image sensor for performing image capture operations and a digital image processor for performing image processing operations. The digital image sensor includes a sensor array outputting digital pixel data, an image buffer for storing the pixel data, a first processor and a first interface circuit for transferring the pixel data onto a pixel bus. The digital image processor includes a second interface circuit coupled to receive the pixel data from the pixel bus, a frame buffer coupled to store the pixel data, an image processing pipeline for processing the pixel data stored in the frame buffer into video data, and a second processor. The digital image sensor and the digital image processor transfer control information over a control interface bus and the digital image sensor performs the image capture operations independent of the image processing operations performed by the digital image processor.

An imaging system illuminates body tissue with infrared light to enhance visibility of subcutaneous blood vessels, and generates a video image of the body tissue and the subcutaneous blood vessels based on reflected infrared light. The system includes an infrared light source for generating the infrared light and a structure for diffusing the infrared light. The diffusing structure includes one or more layers of diffusing material for diffusing the light. The system further includes a video imaging device for receiving the infrared light reflected from the body tissue and for generating a video image of the body tissue based on the reflected infrared light.

The present invention contemplates implementation of transitory downhole video imaging and/or spectral imaging for the characterization of formation fluid samples in situ, as well as during flow through production tubing, including subsea flow lines, for permanent and/or long term installations. The present invention contemplates various methods and apparatus that facilitate one-time or ongoing downhole fluid characterization by video analysis in real time. The methods and systems may be particularly well suited to permanent and periodic intervention-based operations.

An improved aircraft instrument flight display system employs primary and secondary video graphics processors for generating graphics video imaging information. Both the primary and secondary video graphics processors have associated potential failure threads and are preferably chosen to have different potential failure threads so that the same failure problem will not have a tendency to occur in both of the video graphics processors. The primary video graphics processor generates a graphical display of the aircraft flight information for use by the flight crew in operating the aircraft. The system also includes a video switch for switching between the primary and secondary video graphics processors under control of the integrity checking processor based on the integrity of the graphical display provided by the primary video graphics processor. The switch switches its output to the secondary video graphics processor when the integrity checking processor detects a mismatch condition for the primary video graphics processor in order to maintain critical display data availability when a mismatch has been detected with respect to the primary video graphics processor. The video imaging information provided by the secondary video graphics processor can be a subset of the video imaging information provided by the primary video graphics processor or it can be the same. The integrity checking function may be accomplished by storing a complex checksum, such as a CRC, for a predefined image of each graphics image capable of being rendered as a baseline, and calculating an image checksum for the rendered image and comparing it against the stored complex checksum corresponding to the image for determining any deviations from the baseline.

A tubular suction tool for accessing an anatomic surface or anatomic space and particularly the pericardium to access pericardial space and the epicardial surface of the heart to implant cardiac leads in a minimally invasive manner are disclosed. The suction tool incorporates a suction pad concave wall defining a suction cavity, a plurality of suction ports arrayed about the concave wall, and a suction lumen, to form a bleb of tissue into the suction cavity when suction is applied. The suction cavity extends along one side of the suction pad, so that the suction pad and suction cavity can be applied tangentially against a tissue site. The suction tool can incorporate light emission and video imaging of tissue adjacent the suction pad. A working lumen terminating in a working lumen port into the suction cavity enables introduction of tools, cardiac leads, and other instruments, cells, drugs or materials into or through the tissue bleb drawn into the suction cavity.

A system and method identifies a video file in response to a video based search query. A video imaging device in a mobile device captures a video file, and sends the video file to a search engine. A database associated with the search engine stores pre-indexed metadata of pre-indexed frames of video. A video analyzer separates the received video file into individual frames, analyzes the individual frames received from the mobile device by converting the individual frames into metadata, and compares the metadata to the pre-indexed metadata of the pre-indexed frames stored in the database. The video analyzer then sends a message containing information about the identified pre-existing video back to the mobile device based on the comparison of metadata. The metadata of the file and/or the metadata in the database may include one or more of pixel information, histogram information, image recognition information and audio information for each individual frame.

A low-cost system for detecting a drowsy condition of a driver of a vehicle includes a video imaging camera located in the vehicle and oriented to generate images of a driver of the vehicle. The system also includes a processor for processing the images acquired by the video imaging camera. The processor monitors an eye and determines whether the eye is in an open position or a closed state. The processor further determines a time proportion of eye closure as the proportion of a time interval that the eye is in the closed position, and determines a driver drowsiness condition when the time proportion of eye closure exceeds a threshold value.

A system and method are provided for monitoring an eye. The system includes a video imaging camera oriented to generate images of an eye. The camera is aligned along an imaging axis. A first light source is located at an angle less than 2.5 degrees of the imaging axis for illuminating the eye. A second light source is arranged at an angle greater than 4.5 degrees from the imaging axis for illuminating the eye. The system includes a processor for processing the images generated with the video imaging camera during illumination of the eye with the first light source and during illumination of the eye with the second light source.

The invention discloses a face identification and radio frequency identification based monitoring and tracking system which comprises a monitoring server, a person's moving information query terminal, video image acquiring devices and a RFID reader. The monitoring server is provided with a video image acquiring device and RFID reader geographical database, a person's characteristics information database, a person's moving information database and a face identification module. The video image acquiring device and RFID reader geographic database is used to store the geographical information of the video image acquiring devices and the RFID reader. The person's characteristics information database is used to record a person's face characteristics data and RFID label information. The person's moving information database is used to record the moving information of a person, and the person's moving information query terminal is designed for people to enquire the moving information of a targeted person. The system is capable of achieving whole course tracking to all people entering a monitoring zone and can rapidly tell the whereabouts of a targeted person in the monitoring zone.

A system for low-latency, high-resolution, continuous motion, staring panoramic video imaging includes a plurality of high-resolution video cameras, each video camera generating about at least 500 kilopixel near-real time video. The cameras can be supported for positioning the plurality of cameras at predetermined angular locations to generate a full 360 degree field of view. The system can also include an image processor for processing video image signals in parallel and providing panoramic images. In one embodiment, the system can include a display to provide seamless panoramic images. In another embodiment, the panoramic imaging and display system incorporates an intelligent driver's viewer for use with vehicles which can intelligently and adaptively select and display a separate field of view in response to a variety of internal and external data inputs.

The invention concerns an electronic device equipped with a video imaging process capability, which device includes a camera unit arranged to produce image frames from an imaging view which includes a region-of-interest ROI, an adjustable optics arranged in connection with the camera unit in order to focus the ROI on the camera unit, an identifier unit in order to identify a ROI from the image frame, a tracking unit in order to track the ROI from the image frames during the video imaging process and an auto-focus unit arranged to analyze the ROI on the basis of the tracking results provided by the tracking unit in order to adjust the optics. The device is arranged to determine the spatial position of the ROI in the produced image frame without any estimation measures.

A security and surveillance system for aircraft on the ground incorporates a plurality of strategically spaced sensors including video imaging generators, audio sensors, motion detectors, and fire and smoke detectors for monitoring critical components and critical areas of both the interior and the exterior of the a commercial transport such as an aircraft. The system is a comprehensive multi-media safety, tracking and/or surveillance system, which provides both visual and/or audio information as well as critical data such as location, direction, intrusion, fire and/or smoke detection and/or status of environmental conditions and/or asset systems status. The collected information is analyzed and prioritized according to type of event, location and nature of required response for automatically dispatching the proper response. The captured data and images are transmitted to a ground based security station for display on a monitor and may be recorded on a “black box” recorder as well as on a ground based recording system.

A system and method are provided for monitoring an eye to determine eye closure. The system includes a video imaging camera oriented to generate images of an eye. The system also includes a video processor for processing the images generated with the video imaging camera. The processor includes an edge detector for detecting edges of the eye in the image and a line selector for generating substantially horizontal first and second lines representative of the detected edges. The processor determines the state of eye closure, such as eye open or eye closed, based on distance between the first and second lines. The system may be employed on a vehicle to determine the eye closure of a driver of the vehicle.