Abstract: An adhesive applicator includes a receiver having a tubular body with a closed first end and an opposed second end, the tubular body having a deformable wall, an adhesive composition contained within the tubular body, and an applicator tip mounted on the tubular body and comprising a foam material having an applicator external of the applicator for applying the adhesive, the applicator being such that deformation of the tubular body causes the adhesive to be expressed through the applicator tip. The foam material is a reticulated foam felt and allows for relatively constant flow of the adhesive through the foam felt and to the applicator surface thereof over a wide range of viscosity conditions of the adhesive and pressure applied to the deformable body of the applicator.

Abstract: A virtual reality apparatus includes a head mountable display (HMD); a detector to detect a deviation of a current orientation of the HMD from a base orientation of the HMD; and a generator to generate content for presentation to the wearer of the HMD to prompt the wearer of the HMD to turn his head so as to change the orientation of the HMD towards the base orientation.

Abstract: Virtual reality apparatus comprises a display generator to generate images of a virtual environment, including a virtual representation of a display object and at least part of an avatar, for display to a user; a haptic interface comprising one or more actuators to provide a physical interaction with the user in response to a haptic interaction signal; a detector arrangement configured to detect two or more haptic detections applicable to a current configuration of the avatar relative to the object in the virtual environment; and a haptic generator to generate the haptic interaction signal in dependence upon the two or more haptic detections.

Abstract: According to the present invention there is provided an applicator for dispensing a liquid, the applicator comprising; a body, a holder for holding a supply of liquid to be dispensed, a nozzle mounted on the body for dispensing the liquid, an elongate priming chamber within the body for receiving liquid from the holder, an elongate delivery chamber within the body for receiving liquid from the priming chamber, a piston assembly having a piston located in the delivery chamber and being moveable in a first direction to draw liquid from the priming chamber into the delivery chamber and in a second opposite direction for passing liquid from the delivery chamber to the nozzle, a drive arrangement capable of effecting incremental movement of the piston in the second direction for metered dispense of the liquid, and a first actuator for operating the drive arrangement for effecting said incremental movement.

Abstract: A processing system adapted for use in a gaming environment is configured to detect when a user might accidentally drop an input device, such as a handheld game controller. The processing system includes an input device, a processing unit and a warning unit. The input device has one or more pressure sensors operable to sense pressure inputs from a user. The processing unit is operable to identify an imminent dropping of the input device from measurements obtained by the pressure sensors. And the warning unit is operable to provide a warning to the user when the processing unit identifies an imminent drop of the input device.

Abstract: In some embodiments, a wound dressing that incorporates a number of sensors or sensors separate from the wound dressing can be utilized in order to monitor characteristics of a wound as it heals or to identify one or more risk factors or conditions that may precipitate a wound. In some implementations, a wound dressing configured to be positioned in contact with a wound includes a substantially flexible substrate supporting one or more sensors. The one or more sensors can include temperature sensors, conductivity sensors, multispectral optical measurements sensors, pH sensors, pressure sensors, colorimetric sensors, optical sensors, ultraviolet (UV) sensors, or infrared (IR) sensors.

Abstract: A method and apparatus for detecting fine movement of a subject in video images, and for distinguishing over noise and other image artefacts. The video images are processed to detect movement of image features through the sequence and to calculate how spatially distributed those moving features are across the image. The movement tracks of the features may be subject to principal component analysis and a spatial dispersion measure calculated by the product of the distance between tracked image features and the contributions of those image features to the most significant principal components. If the spatial dispersion measure is high then this is indicative of feature movement being dispersed widely across the image, whereas if it is low, it is indicative of the main feature movements being concentrated in one part of the image, and thus more likely to represent subject movement than noise.

Abstract: In order to detect gross subject movement in a video image in a way which is not sensitive to illumination change, for example illumination changes caused by movement of shadows or sunlight, spaced pairs of image frames are selected from a video sequence and sub-divided into cells, and spatial frequency analysis is performed in each cell. The magnitude of the spatial frequency components in corresponding cells in the two selected image frames are compared. If the number of cells with high magnitude difference is high then the video image is determined as containing gross subject movement whereas if the number of cells with high magnitude differences is low, the sequence is determined as not containing gross movement, though it may contain illumination changes or no or fine movement.

Abstract: A lid and seat assembly for a plumbing fixture includes a housing, a lid, and a seat. The housing includes a generally planar front surface and a generally planar rear surface. The lid is pivotably coupled to the housing. The seat is pivotably coupled to the housing. The front surface and the rear surface meet at a first edge located at a first end of the housing and at a second edge at a second end of the housing. The front surface, the rear surface, the first common edge, and the second common edge cooperatively define a continuous surface profile configured to facilitate single-wipe cleaning of the housing.

Abstract: A liquid applicator (1) for holding and discharging a curable liquid composition, comprises a receiver body (2) for holding a curable liquid composition, a discharge tip (20;30;40) having a longitudinal axis and further having a distal end remote from the receiver body (2) from which the liquid composition is discharged, and a discharge mechanism (5) for transferring liquid composition held by the applicator (1) to the tip (20;30;40) for discharge of the composition. The tip (20;30;40) comprises an outlet section (21d;31d;44d) having at least one groove formation (26;38;48) extending along the tip (20;30;40) to the distal end thereof. The applicator may be a surgical adhesive applicator.

Abstract: A laser scanner device can be adapted to be mounted to a vehicle, the device comprising a LiDAR module working based on a laser measuring beam and time-of-flight-measurement-principle. The LiDAR module is configured to provide a horizontal field of view of at least 60°, an instantaneous vertical field of view of at least ±2°, a scan resolution of at least one point per 0.8° in horizontal and vertical direction, and a frame rate of at least 10 Hz for scanning at least the entire horizontal and instantaneous vertical field of view with said scan resolution, wherein the LiDAR module comprises a multibeam transmitter configured for generating a plurality of measuring beams.

Abstract: Methods and apparatus provide for acquiring information relating to at least one of a position and a rotation of a user's head wearing a head-mounted display; generating an image for the head-mounted display using information relating to at least one of a position and a rotation acquired at a certain point of time; and a correcting process includes receiving updated information relating to at least one of a position and a rotation at a different point of time and correcting the image generated using the updated information. The generating the image includes using the information relating to at least one of the position and the rotation in a first frequency; and the correcting includes receiving updated information relating to at least one of a position and a rotation in a second frequency corresponding to a frame rate of the head-mounted display.

Abstract: A head mountable display (HMD) includes a camera operable to capture images of a peripheral and/or control device in use by a wearer of the HMD. A detector of the HMD is configured to detect occlusions in a captured image of the peripheral and/or control device. And an image renderer of the HMD is configured to render a virtual version of the peripheral and/or control device for display to the HMD wearer and to render a representation of a user's hand at a position of a detected occlusion.

Abstract: A method and apparatus for estimating heart rate of a subject from a video image of the subject. Regions of interest are generated by: detecting and tracking feature points through the video image sequence, triangulating the feature points and generating square regions of interest corresponding to the in-circles of the triangles; or, according to size and location probability distributions which are defined to have a high probability for image areas away from strong intensity gradients and which generate good quality signals. In an alternative embodiment, the intensity variations from the square regions of interest through the frame sequence are taken as time series signals and those signals which have a strong peak in the power spectrum are selected and subject to principal component analysis. The principal component with a highest signal quality is selected and its frequency is found and used to estimate the heart rate.

Abstract: A method and apparatus for monitoring the health and safety of a subject in a room such as a secure room based on video images of the subject. The images are analysed to characterise the movement of the subject as gross movement, fine movement or no movement. In the case of gross movement, no vital signs of the subject are estimated and a display indicates that the subject is moving, but no vital signs are available. In the absence of gross movement, vital signs of the subject such as heart rate or breathing rate are estimated from the video images of the subject, for example by detecting and analysing photoplethysmogram signals in the video images, and the vital signs are displayed. Alerts may be generated if the vital signs are out of the normal physiological range. If vital signs cannot be detected in the video images but the movement of the subject is characterised as fine movement, the display shows that no vital signs are being estimated, but that the subject is moving.

Abstract: A method and apparatus for extracting a breathing rate estimate from video images of a respiring subject. Signals corresponding to the spatial coordinates of feature points tracked through the video sequence are filtered and excessively large changes are attenuated to reduce movement artefacts. The signals are differentiated and signals which correlate most strongly with other signals are selected. The selected signals are subject to principal component analysis and the best quality of the top five principal components is selected and its frequency is used to calculate and output a breathing rate estimate. The method is particularly suitable for detecting respiration in subject in secure rooms where the video image is of substantially the whole room and the subject is only a small part of the image, and maybe covered or uncovered.

Abstract: A detection method and a detection apparatus are provided. The method includes detecting features of a user's right and left eyes in a stereoscopic image pair of the user; detecting the image depths of the right and left eye features in the stereoscopic image pair; and comparing the detected depths. When the difference between the detected depths is less than a threshold difference, detecting the separation of the user's eyes from the separation of the three dimensional positions of the right eye and left eye features is detected. The apparatus includes a feature detector to detect the features of the user's eyes, a depth detector to detect the image depths, a comparator to compare the detected depths, and a separation detector to detect separation of the eyes from the separation of the three dimensional positions of the right and left eye features when the difference is less than the threshold.

Abstract: A method of operation of a head mountable display (HMD) system, in which stereoscopic images are displayed with respect to a virtual display screen (VDS) position, is provided. The method includes setting a VDS position for a stereoscopic image for display in response to a depth parameter of a region of interest (ROI) in respect of the stereoscopic image for display. The method also includes generating the stereoscopic image for display having an image parallax appropriate to the VDS position set by the setting step.

Abstract: A processing system adapted for use in a gaming environment is configured to detect when a user might accidentally drop an input device, such as a handheld game controller. The processing system includes an input device, a processing unit and a warning unit. The input device has one or more pressure sensors operable to sense pressure inputs from a user. The processing unit is operable to identify an imminent dropping of the input device from measurements obtained by the pressure sensors. And the warning unit is operable to provide a warning to the user when the processing unit identifies an imminent drop of the input device.

Abstract: A position and rotation information acquisition unit 730 acquires information relating to a position and a rotation of the head of a user who wears a head-mounted display unit 100. A coordinate transformation unit 740 and a panorama image processing unit 750 generate an image to be displayed on the head-mounted display unit using the information relating to the position and the rotation acquired at a certain point of time by the position and rotation information acquisition unit 730. A correction processing unit 780 corrects the generated image using updated information relating to the position and the rotation at a different point of time.