Abstract: A system and method for determining if an occupant of a vehicle has correctly applied a seat belt by acquiring an image of the occupant, the image including at least a shoulder portion of the occupant, identifying left and right shoulders and a longitudinal extension of a seat belt in the image, determining an intersection between the longitudinal extension and a line connecting the left and right shoulders, and, based on a relative position of the intersection and the shoulders, deducing whether the seat belt is correctly applied.

Abstract: A method for estimating a gaze direction of a user includes acquiring an image of a face of the user, determining an approximate gaze direction based on a current head pose and a relationship between head pose and gaze direction, determining an estimated gaze direction based on detected eye features, determining a precise gaze direction based on glint position and eye features, and combining the approximate gaze direction and at least one of the estimated gaze direction and the precise gaze direction to provide a corrected gaze direction.

Abstract: A system and method for determining if an occupant of a vehicle has correctly applied a seat belt by acquiring an image of the occupant, the image including at least a shoulder portion of the occupant, identifying left and right shoulders and a longitudinal extension of a seat belt in the image, determining an intersection between the longitudinal extension and a line connecting the left and right shoulders, and, based on a relative position of the intersection and the shoulders, deducing whether the seat belt is correctly applied.

Abstract: A method for eye tracking comprising acquiring a first image of a target area using an RGB-IR sensor during NIR illumination, the first image including a set of IR pixels containing information from IR dyes, and a set of RGB pixels containing information from red, blue and green dyes, respectively. The method further comprises identifying head tracking features and performing head tracking using the first image, identifying an eye region in the first image based on the head tracking features, performing demosaicing of the eye region using IR pixels and RGB pixels in the eye region, to form a spatially enhanced IR image of the eye region, and performing eye tracking using the spatially enhanced IR image. With this approach, head tracking is used to identify a smaller region of the RGB-IR image, and this limited region is then processed to provide an enhanced IR image.

Abstract: A method for estimating a gaze direction of a user includes acquiring an image of a face of the user, determining an approximate gaze direction based on a current head pose and a relationship between head pose and gaze direction, determining an estimated gaze direction based on detected eye features, determining a precise gaze direction based on glint position and eye features, and combining the approximate gaze direction and at least one of the estimated gaze direction and the precise gaze direction to provide a corrected gaze direction.

Abstract: A pose of an eye of a user is determined by providing a parameterized 3D model of the eye, said model including a set of parameters which have been calibrated, acquiring (step S11) at least one tracking image of the eye, identifying (step S12) a plurality of characteristic features in the acquired tracking image, fitting (step S13) said characteristic features with corresponding features of an optical projection of the calibrated 3D model, thereby forming a set of equations, and numerically solving (step S14) the set of equations to determine the pose of the eye.

Abstract: A pose of an eye of a user is determined by providing a parameterized 3D model of the eye, said model including a set of parameters which have been calibrated, acquiring (step S11) at least one tracking image of the eye, identifying (step S12) a plurality of characteristic features in the acquired tracking image, fitting (step S13) said characteristic features with corresponding features of an optical projection of the calibrated 3D model, thereby forming a set of equations, and numerically solving (step S14) the set of equations to determine the pose of the eye.

Abstract: A vane cell pump has a rotor mounted in a pump housing and driven by a shaft, multiple vane plates mounted in the outer circumference of this rotor, and an outer ring that surrounds the rotor and the vane plates, whereby this ring is disposed either directly in the pump housing, or in a setting ring that can be moved in the pump housing, along predetermined paths. The vane cell pump has transverse grooves disposed in the cylinder mantle surface of the rotor, between the bearing grooves of the vane plates, running over the entire rotor width, disposed parallel to the bearing grooves of the vane plates, spaced apart from the bearing grooves by a bearing crosspiece. These transverse grooves have a non-symmetrical cross-section progression, which has a low point in each cell chamber, which point is always disposed behind the cell chamber center axis, seen in the direction of rotation.

Abstract: The invention relates to vane cell pumps having a rotor mounted in a pump housing and driven by a shaft, multiple vane plates mounted in the outer circumference of this rotor, and an outer ring that surrounds the rotor and the vane plates, whereby this ring is disposed either directly in the pump housing, or in a setting ring that can be moved in the pump housing, along predetermined paths. The purpose is to develop a new type of vane cell pump having a new type of pump chamber geometry, which guarantees optimal, complete filling, in terms of flow technology, of the pump chambers, particularly at speeds of rotation in the range from 4500 rpm to beyond 6000 rpm, and furthermore is easy to manufacture, in terms of production technology.