Abstract: A device and method for rendering content that includes analyzing previous and/or subsequent temporal portions of a content signal to determine elements that are positionally related to elements of a current portion of the content signal. The current portion of the content signal is rendered on a primary rendering device, such as a television, while the elements that are positionally related to elements of a current portion of the content signal are concurrently rendered on a secondary rendering device. In one embodiment, the elements that are rendered on the secondary rendering device may be rendered at a lower resolution and/or lower frame rate than the rendered current portion of the content signal. In one embodiment, at least one of previous and subsequent temporal portions of a content signal may be analyzed at a lower resolution than the content signal.

Abstract: A method of processing images of at least one living being, includes obtaining a sequence (19) of digital images taken at consecutive points in time. At least one measurement zone (26) comprising a plurality of image points is selected. For each measurement zone (26), a signal (28,30) representative of at least variations in a time-varying value of a combination of pixel values at least a number of the image points for use in determining at least one of a presence and a frequency value of at least one peak in a spectrum of the signal (28,30) corresponding to a frequency of a periodic physiological phenomenon is obtained. The step (25) of selecting at least one measurement zone (26) includes analyzing information based on pixel data of a plurality of image parts in at least one of the images (19), each image part including at least one image point, and selecting each measurement zone (26) from contiguous parts determined to have similar characteristics.

Abstract: A light projector comprises a stack of layered planar optical elements where the stack comprises a group (103) of planar optical elements (107-111) arranged to provide a plurality of light patterns. The stack may specifically comprise a group of transparent layers having opaque patterns such that light propagating through the layers results in the light patterns. The light patterns reach a microlens array (101) which is arranged to focus the light patterns at different focal distances. In some scenarios, programmable optical elements may be used to generate the light patterns. A vision system may determine characteristics of objects based on reflections of the projected light patterns. The approach may in particular provide an efficient yet low cost light projection system for distance determination.

Abstract: In a method and system for providing virtual output images from an array of image capturing devices image data (Ii(s,t), I2(s,t)) is taken from the devices (Ci, C2). This image data is processed by convolving the image data with a function, e.g. the path (S) and thereafter deconvolving them, either after or before summation (SUM), with an inverse point spread function (IPSF) or a filter (HP) equivalent thereto to produce all-focus image data (I0(s,t)).

Abstract: The invention relates to a respiratory motion detection apparatus (1) for detecting respiratory motion of a person. An illuminator (3) illuminates the person (2) with an illumination pattern (11), and a detector (4) detects the illumination pattern (11) on the person (2) over time. A temporal respiratory motion signal being indicative of the respiratory motion of the person (2) is determined from the detected illumination pattern by a respiratory motion signal determination unit (5). The illumination pattern deforms significantly with slight movements of the person. Thus, since the respiratory motion signal determination unit (5) is adapted to determine the temporal respiratory motion signal from the detected illumination pattern, even slight respiratory movements of the person can be determined. The sensitivity of detecting respiratory movements of a person can therefore be improved.

Abstract: A system for tracking the point of gaze of an observer observing an object comprises a camera for recording an image of an eye of the observer, comprises a means for providing a luminous marker, and means for analyzing the image of the eye to determine the reflection of the marker on the eye and the centre of the pupil. The relative positions of the corneal reflection of the marker and the pupil centre are measured. The marker is repositioned, in dependence on the determined relative positions, to improve correspondence between the corneal reflection of the marker and the pupil centre.

Abstract: The invention relates to a detection system for determining data embedded into the light output of a light source in a form of a repeating sequence of N symbols. The detection system includes a camera and a processing unit. The camera is configured to acquire a series of images of the scene via specific open/closure patterns of the shutter. The processing unit is configured to process the acquired series of images to determine the repeating sequence of N symbols. By carefully triggering when a shutter of the camera is open to capture the different symbols of the encoded light within each frame time of a camera, a conventional camera with a relatively long frame time may be employed. Therefore, the techniques presented herein are suitable for detecting the invisible “high frequency” coded light while using less expensive cameras as those used in the prior art.

Abstract: The invention relates to a detection system for determining whether a light contribution of a light source is present at a selected position within a 2D scene. The light contribution includes an embedded code comprising a repeating sequence of N symbols. The detection system includes a camera and a processing unit. The camera is configured to acquire a series of images of the scene via specific open/closure patterns of the shutter. Each image includes a plurality of pixels, each pixel representing an intensity of the light output of the light source at a different physical position within the scene. The processing unit is configured to process the acquired series of images to determine whether the light contribution of the first light source is present at the selected physical position within the scene by e.g. correlating a sequence of pixels of the acquired series corresponding to the selected physical position with the first sequence of N symbols.

Abstract: The invention provides a system (102) for accurately detecting a patient's (114) movement during imaging procedures. The system comprises a camera (126) for providing a stream of camera images of a part of a patient's exterior (206). The system (102) furthermore comprises a fiducial element (116), which fiducial element (116) is mountable on said part of the patient's exterior (206), and which fiducial element (116) is detectable in the stream of camera images, and an image processor (128) for detecting a displacement of the fiducial element based on consecutive camera images comprised in at least the stream of camera images and for generating an output signal (129) indicative for said displacement. Herein, the fiducial element (116) has an in-plane stiffness which is substantially larger than an in-plane stiffness of said part of the patient's exterior. In addition, the fiducial element (116) and said part of the patient's exterior are provided with substantially equal outer in-plane dimensions.

Abstract: A camera and camera system is provided with an optical device (8). The optical device creates simultaneously two or more images of object on a sensor (4) forming a compound image. The distance d between the constituting images of objects in the compound image is dependent on the distance Z to the camera. The compound image is analysed (9), e.g. deconvolved to determine the distances d between the double images. These distances are then converted into a depth map (10).

Abstract: The invention relates to a method for encoding/decoding a video stream including a plurality of images (A, B, C) in a video processing apparatus having a processing unit (11) coupled to a first memory (12), further comprising a second memory (13), comprising the steps: providing a subset of image data stored in the second memory (13) in the first memory (12), —simultaneous encoding/decoding of more than one image (B, C) of the video stream, by accessing said subset, wherein the simultaneously encoding/decoding is performed by access sharing to at least one image (A).

Abstract: A conversion unit for converting a first motion vector field (MVF1) into a second motion vector field (MVF2). The first motion vector field being computed, on basis of a first image and a second image of a sequence of images, for a temporal position between the first and second images. A first establishing means establishes a first group of un-referenced pixels in the first image. A second establishing means establishes a second group of un-referenced pixels in the second image. A computing means computes a match error of a candidate motion vector oriented from the first group of un-referenced pixels to the second group of un-referenced pixels. A comparing means for comparing the match error with a predetermined match threshold and assigning the candidate motion vector to one of the motion vectors of the second motion vector field if the match error is below the predetermined match threshold.

Abstract: A method of processing images of at least one living being, includes obtaining a sequence (19) of digital images taken at consecutive points in time. At least one measurement zone (26) comprising a plurality of image points is selected. For each measurement zone (26), a signal (28,30) representative of at least variations in a time-varying value of a combination of pixel values at least a number of the image points for use in determining at least one of a presence and a frequency value of at least one peak in a spectrum of the signal (28,30) corresponding to a frequency of a periodic physiological phenomenon is obtained. The step (25) of selecting at least one measurement zone (26) includes analyzing information based on pixel data of a plurality of image parts in at least one of the images (19), each image part including at least one image point, and selecting each measurement zone (26) from contiguous parts determined to have similar characteristics.

Abstract: Mirror device (1) comprises a display device (3) and a camera (2) to record an image. The device comprises means for determining (4, 41) the position of a body part. Said means put out a signal (S) indicative of the position of the body part with respect to the a display screen of a display device (3) for a viewer in front of the mirror device. In dependence of this signal (S) the view point from which the to be displayed image is recorded is changed.

Abstract: A device (500) and method for rendering content that includes analyzing previous and/or subsequent temporal portions of a content signal to determine elements that are positionally related to elements of a current portion of the content signal. The current portion of the content signal is rendered on a primary rendering device (530), such as a television, while the elements that are positionally related to elements of a current portion of the content signal are concurrently rendered on a secondary rendering device (540). In one embodiment, the elements that are rendered on the secondary rendering device (540) may be rendered at a lower resolution and/or lower frame rate than the rendered current portion of the content signal. In one embodiment, at least one of previous and subsequent temporal portions of a content signal may be analyzed at a lower resolution than the content signal.

Abstract: The invention relates to a method for acquiring MR images (200-216) of an object, said object comprising at least first and second kinds of nuclei, the method comprising: acquiring (300; 304) first MR image data (200; 202; 204) of the object, wherein the first nuclei are excited, acquiring (302) second MR image data (206-216) of the object, wherein the second nuclei are excited, analyzing the first MR image data (200; 202; 204) determining motion parameters describing a motion of the object based on said analysis, motion correcting the first and/or second MR image data (206-216) using said motion parameters.

Abstract: The present invention relates to a method, image processing device, image display device including an image processing device and computer program product for changing the size of presentation of an image data stream (X) provided in a image data format. The image processing device (12) comprises at least one image decoding unit (22) selecting at least parts of an image data stream (XO, XS) having a first original field of view to be presented in, and obtaining values of pixel regions from an area larger than the original field of view from the selected image data (XS). The image processing device changes field of view by calculating an image to be displayed conforming to a second field of view based on the obtained data and values. Image data intended to be presented in the first field of view can then be displayed in the second field of view.

Abstract: The invention relates to a method for encoding/decoding a video stream including a plurality of images (A, B, C) in a video processing apparatus having a processing unit (11) coupled to a first memory (12), further comprising a second memory (13), comprising the steps: providing a subset of image data stored in the second memory (13) in the first memory (12), —simultaneous encoding/decoding of more than one image (B, C) of the video stream, by accessing said subset, wherein the simultaneously encoding/decoding is performed by access sharing to at least one image (A).

Abstract: A video encoder/decoder with spatial scalable compression schemes using spatial sharpness enhancement techniques is disclosed. The video compression scheme introduces a number of various video enhancement techniques on the base layer. A picture analyzer is used to determine the best or the best mix of various video enhancement 5 techniques. The picture analyzer compares the selected mix of video enhancement techniques with the original full resolution input signal to determine for which of the pixels or groups of pixels a residual enhancement layer is required. Parameters defining the selected mix of video enhancement techniques are transmitted to the decoder layer so the same mix of video enhancement techniques can be used in the decoder layer.

Abstract: The image processing unit (200,201,203,205,207) comprises an extension unit (208) for extending a first image (110) at a side of the first image (110) with pixels of a second image (108) based on a second set of motion vectors (212). The image processing unit (200,201,203,205,207) further comprises a motion estimation unit (204) for estimating a first set of motion vectors (210) of pixels corresponding to a first portion (105) of a scene (100) which is visible in the first image (110) and a second image (108), and a motion extrapolation unit (206) for estimating the second set of motion vectors (212) of pixels corresponding to a second portion (103) of the scene (100) which is visible in the second image (108), but invisible in the first image (110), based on the first set of motion vectors (210).