Abstract: A method for use in colourising a three-dimensional (3D) point cloud of an environment, the method including determining timing information indicative of a time of capture of a frame; identifying at least some 3D points of the point cloud in the frame based on the position of the camera and determining a local point cloud that captures a scene in the immediate vicinity of the camera, wherein a visibility check is performed on the local point cloud to determine points in the local point cloud that are visible from the perspective of the camera for a given frame; and determining a candidate colour for the at least some of the 3D points using a colour of a corresponding pixel in the frame extracted from the video data; and, assigning a colour to one or more points of the 3D point cloud using candidate colours obtained from multiple frames.

Abstract: A method for use in colourising a three-dimensional (3D) point cloud of an environment, the method including determining timing information indicative of a time of capture of a frame; identifying at least some 3D points of the point cloud in the frame based on the position of the camera and determining a local point cloud that captures a scene in the immediate vicinity of the camera, wherein a visibility check is performed on the local point cloud to determine points in the local point cloud that are visible from the perspective of the camera for a given frame; and determining a candidate colour for the at least some of the 3D points using a colour of a corresponding pixel in the frame extracted from the video data; and, assigning a colour to one or more points of the 3D point cloud using candidate colours obtained from multiple frames.

Abstract: A method for use in colourising a three-dimensional (3D) point cloud of an environment, the method including determining timing information indicative of a time of capture of a frame; identifying at least some 3D points of the point cloud in the frame based on the position of the camera and determining a local point cloud that captures a scene in the immediate vicinity of the camera, wherein a visibility check is performed on the local point cloud to determine points in the local point cloud that are visible from the perspective of the camera for a given frame; and determining a candidate colour for the at least some of the 3D points using a colour of a corresponding pixel in the frame extracted from the video data; and, assigning a colour to one or more points of the 3D point cloud using candidate colours obtained from multiple frames.

Abstract: A method for use in colourising a three-dimensional (3D) point cloud of an environment, the method including determining timing information indicative of a time of capture of a frame; identifying at least some 3D points of the point cloud in the frame based on the position of the camera and determining a local point cloud that captures a scene in the immediate vicinity of the camera, wherein a visibility check is performed on the local point cloud to determine points in the local point cloud that are visible from the perspective of the camera for a given frame; and determining a candidate colour for the at least some of the 3D points using a colour of a corresponding pixel in the frame extracted from the video data; and, assigning a colour to one or more points of the 3D point cloud using candidate colours obtained from multiple frames.

Abstract: A three dimensional scanning beam system (100) and method (500) enable economical and efficient three dimensional scans of an environment. The system (100) includes a ranging apparatus (105), and a reactive linkage mechanism (110) having a first end (115) and a second end (120). The first end (115) is connected to the ranging apparatus (105) and the second end (120) is connected to an object (125) that moves the system (100) through an environment. In use acceleration of the object (125) with respect to the environment is converted by the reactive linkage mechanism (110) to motion of the ranging apparatus (105) with respect to the object (125), which increases the field of view of the ranging apparatus (105) with respect to the environment.

Abstract: A three dimensional scanning beam system (100) and method (500) enable economical and efficient three dimensional scans of an environment. The system (100) includes a ranging apparatus (105), and a reactive linkage mechanism (110) having a first end (115) and a second end (120). The first end (115) is connected to the ranging apparatus (105) and the second end (120) is connected to an object (125) that moves the system (100) through an environment. In use acceleration of the object (125) with respect to the environment is converted by the reactive linkage mechanism (110) to motion of the ranging apparatus (105) with respect to the object (125), which increases the field of view of the ranging apparatus (105) with respect to the environment.

Abstract: A torsional vibration damper with at least two parts that are rotatable about an axis and can turn relative to each other against the opposition of at least one coil spring. Support shoes are provided between the spring and an outer wall of the damper structure and are arranged to slide along the outer wall with the spring as it undergoes compression and relaxation. The support shoes include roller bodies to reduce sliding friction between the support shoes and the outer wall.

Abstract: A torsional vibration damper with at least two parts that are rotatable about an axis and can turn relative to each other against the opposition of at least one coil spring. Support shoes are provided between the spring and an outer wall of the damper structure and are arranged to slide along the outer wall with the spring as it undergoes compression and relaxation. The support shoes include roller bodies to reduce sliding friction between the support shoes and the outer wall.

Abstract: A pelvic splint for immobilizing and maintaining the annular integrity of the pelvis in the event of a pelvic ring fracture. The pelvic splint extends from about 5-10 cm above the iliac crest down to about the middle third of the thighs and substantially encircles the pelvis of the victim. The splint is then secured about the pelvis of the victim with two or more adjustable straps. The splint comprises a flexible casing having at least one pliable padding layer disposed therein and a plurality of flexible members individually disposed in pockets spaced apart about the casing. Once tightly secured around the pelvis by the adjustable straps, the splint conforms to the contours of the victim's pelvic area and stabilizes the pelvis by preventing lateral movement and constraining the pelvis in such a manner to preserve the annular integrity thereof. An associated method of stabilizing a pelvis is also disclosed.

Abstract: The coaxial first and second flywheels of a torsional vibration damper, e.g., in the power train of a motor vehicle, are rotatable relative to each other against the opposition of one or more arcuate coil springs which is or are confined in an annular chamber defined by at least one of the flywheels. One end of the coil spring or each coil spring bears, directly, or indirectly, against a single retainer or against one of several discrete retainers on one of the flywheels, and the other end of the coil spring or each coil spring bears, directly or indirectly, against a single retainer or against one of several discrete retainers of the other flywheel. At least one slide is interposed between the radially outermost portions of discrete convolutions provided between an internal surface of the at least one flywheel and one or more discrete coil springs, one for each slide.

Abstract: A pelvic splint for immobilizing and maintaining the annular integrity of the pelvis in the event of a pelvic ring fracture. The pelvic splint extends from about 5-10 cm above the iliac crest down to about the middle third of the thighs and substantially encircles the pelvis of the victim. The splint is then secured about the pelvis of the victim with two or more adjustable straps. The splint comprises a flexible casing having at least one pliable padding layer disposed therein and a plurality of flexible members individually disposed in pockets spaced apart about the casing. Once tightly secured around the pelvis by the adjustable straps, the splint conforms to the contours of the victim's pelvic area and stabilizes the pelvis by preventing lateral movement and constraining the pelvis in such a manner to preserve the annular integrity thereof. An associated method of stabilizing a pelvis is also disclosed.

Abstract: A pelvic splint for immobilizing and maintaining the annular integrity of the pelvis in the event of a pelvic ring fracture. The pelvic splint extends from about 5-10 cm above the iliac crest down to about the middle third of the thighs and substantially encircles the pelvis of the victim. The splint is then secured about the pelvis of the victim with two or more adjustable straps. The splint comprises a flexible casing having at least one pliable padding layer disposed therein and a plurality of flexible members individually disposed in pockets spaced apart about the casing. Once tightly secured around the pelvis by the adjustable straps, the splint conforms to the contours of the victim's pelvic area and stabilizes the pelvis by preventing lateral movement and constraining the pelvis in such a manner to preserve the annular integrity thereof. An associated method of stabilizing a pelvis is also disclosed.

Abstract: The coaxial first and second flywheels of a torsional vibration damper, e.g., in the power train of a motor vehicle, are rotatable relative to each other against the opposition of one or more arcuate coil springs which is or are confined in an annular chamber defined by at least one of the flywheels. One end of the coil spring or each coil spring bears, directly, or indirectly, against a single retainer or against one of several discrete retainers on one of the flywheels, and the other end of the coil spring or each coil spring bears, directly or indirectly, against a single retainer or against one of several discrete retainers of the other flywheel. At least one slide is interposed between the radially outermost portions of discrete convolutions provided between an internal surface of the at least one flywheel and one or more discrete coil springs, one for each slide.

Abstract: A clutch plate for use in friction clutches has an output component in the form of a hub which is connectable to the input shaft of a variable-speed transmission, and an input component in the form of two spaced-apart disc-shaped walls which receive torque from a flywheel when the clutch is engaged. Two dampers are installed between the input and output components, and two diaphragm springs are provided to maintain the members of one damper and the elements of the other damper in proper axial positions relative to each other and relative to the components of the clutch plate. Plastic inserts are used to reduce wear upon metallic parts. One of the dampers is operative alone during a first stage of angular movement of the input and output components relative to each other, and the other damper is operative alone during the next-following stage of such angular movement.