Abstract: A method, a device and a signal enabling automatic washouts in HAV contents. Washout related information is added to a signal representing a HAV content so that a HAV rendering device may adapt the washout to its physical limitations defined by the device capabilities as well as the user preferences. Different types of washouts are proposed. The HAV content signal comprises a first information representative of a haptic washout effect and an optional second information representative of the parameters required for the haptic washout effect. The method comprises performing a first haptic effect, computing the haptic washout effect according to device capabilities, user preferences, type of washout obtained from washout flags and optional washout parameters, and performing the haptic washout effect.

Abstract: The present disclosure generally relates to a method for reducing the coding artefact of at least one pixel of a view (170) belonging to a matrix of views (17) obtained from light-field data associated with a scene. According to present disclosure, the method is implemented by a processor and comprises for each said at least one pixel: —from said matrix of views (17), obtaining (51) at least one epipolar plane image (EPI) associated with said pixel, —applying (52) an artefact filtering on pixels of said epipolar plane image (EPI), —redistributing (53) the filtered pixels of the epipolar plane image in the matrix of views (17).

Abstract: A method for encoding a current focal stack is disclosed that comprises a set of images focused at a different focalization distance from one image to another. According to present disclosure, the method comprises: —encoding (31) information representing an image of the current focal stack, the image being selected in said current focal stack according to an image sharpness criterion, and reconstructing the image into a reconstructed image; —encoding (32) at least another image of the current focal stack by prediction from at least the reconstructed image.

Abstract: In a particular implementation, a user environment space for haptic feedback and interactivity (HapSpace) is proposed. In one embodiment, the HapSpace is a virtual space attached to the user and is defined by the maximum distance that the user's body can reach. The HapSpace may move as the user moves. Haptic objects and haptic devices, and the associated haptic properties, may also be defined within the HapSpace. New descriptors, such as those enable precise locations and link between the user and haptic objects/devices are defined for describing the HapSpace.

Abstract: A method and device for determining a trajectory of a first camera in a three-dimensional scene, the 3D scene including at least one object of interest, a pose information being associated with the at least one object of interest. The method includes determining a set of points of the 3D scene, the set of points representative of a collision-free space of the 3D scene; and determining the trajectory in the 3D scene, The trajectory having a starting point and an ending point, the trajectory being defined with a plurality of points selected within the set, the plurality of points being selected according to a difference of the pose information defined in an image space between pairs of selected points from the starting point to the ending point, the image space being associated with an image of at least a part of the scene acquired with the first camera.

Abstract: A method for enhancing quality of an image comprises deriving from an initial low-resolution image (LRI) an initial high-resolution image (IHRI) by upsampling (S2, S3), providing (S4), based on the initial low-resolution image (LRI), at least one downsampled filtered image (AIij, AIi?j?) with lower resolution, providing (S6), based on the initial low-resolution image (LRI), an unfiltered image (LRI, UIi?j?) having same resolution as the downsampled filtered image, selecting a patch (PI) from the initial high-resolution image (IHRI), finding (S8) filial patches (PA k) similar to the selected patch in the downsampled filtered image (AIij, AIi?j?), finding, in the unfiltered image (LRI, UIi?j?), parent patches (PPk) locally associated to the filial patches (PAk), and linearly combining (S14) the parent patches (PPk) to form an enhanced quality patch (EP).

Abstract: The invention relates to a method of gaze estimation. As to determine the position of the gaze without calibrating the system used for determining the gaze, the method comprises: detecting at least a location of the center of at least an eye on at least an eye image of a viewer watching at least a video image displayed on a screen; determining at least a first position of the gaze of the viewer on the screen by using the at least a detected location of the center of the at least an eye and a mapping function based on center-bias property of human gaze distribution. The invention also relates to a device configured for estimating the gaze.

Abstract: A device for providing the illusion of motion consists of at least two movable parts for stimulating the vestibular sense and the kinaesthetic sense of a user independently from each other. A moving headrest is provided for stimulating the vestibular sense of a user and a moving armrest is provided for stimulating the kinaesthetic sense of a user.

Abstract: A method for processing at least one peripheral image that when displayed extends beyond the borders of a displayed central image is disclosed. The method includes adapting luminance of the peripheral image to human vision characteristics when the luminance of peripheral images is processed so that the rendered light from the peripheral image in the viewer field of view remains low and close to the light rendered by the central view only. According to a first embodiment, the method includes adapting luminance of the peripheral image to a reference reflectance level by applying a light correction function to the input luminance when such light correction function is obtained by measuring a rendered luminance level of the displayed peripheral image adapted to the reference reflectance level of the surface where is displayed the peripheral image. According to a second embodiment, the luminance is further adapted to real reflectance with respect to reference reflectance.

Abstract: A method and apparatus for generating an extrapolated image from an existing film or video content, which can be displayed beyond the borders of the existing file or video content to increase viewer immersiveness, are provided. The present principles provide to generating the extrapolated image without salient objects included therein, that is, objects that may distract the viewer from the main image. Such an extrapolated image is generated by determining salient areas and generating the extrapolated image with lesser salient objects included in its place. Alternatively, salient objects can be detected in the extrapolated image and removed. Additionally, selected salient objects may be added to the extrapolated image.

Abstract: Apparatus and Method for Generating an Extrapolated Image Using a Recursive Hierarchical Process A method and apparatus for generating an extrapolated image from an existing film or video content, which can be displayed beyond the borders of the existing film or video content to increase viewer immersiveness, are provided. The present principles provide for hierarchical processing in which higher resolution images are generated at each higher level, and wherein the higher level image is generated based on prediction and weighting derived from a current level image, and the current level is refined for the prediction based on overlapping data.

Abstract: A method and device for controlling at least one force-feedback device associated with at least a part of the body of a user. As to control the user's experience of motion and movements induced by the displacement(s) of the force feedback device(s) following operations are performed: [a] determining a speed value of a movement of the at least a part of the body according to at least a parameter representative of the displacement of the at least one force-feedback device, the movement of the at least a part of the body being induced by the displacement of the at least one force-feedback device; [b] comparing the determined speed value with a threshold speed value as to determine whether the displacement of the at least one force-feedback device is perceived by the user; and [c] controlling the at least one parameter according to the comparison result.

Abstract: The invention relates to a device configured to determine and/or render information representative of roughness of a first surface of an object, the device comprising means for measuring a first pressure applied by at least a part of a hand on said device, sticky means configured to be in contact with the first surface and means for measuring a speed of the device.

Abstract: The present invention generally relates to a method for predicting a block of pixels from at least one patch comprising a block of pixels and a causal neighborhood around this block of pixels. The method comprises the following steps: determining a mapping of a causal neighborhood, around that block of pixels to be predicted, on the block of pixels to be predicted in order that the block of pixels of each patch is best predicted by mapping the neighborhood of that patch on the block of pixels of that patch, and predicting the block of pixels from a prediction block computed by applying the determined mapping on the neighborhood of the block of pixels to predict.

Abstract: In order to generate force feedback data for a haptic device for providing simulated six degrees of freedom movement, a three dimensional acceleration component corresponding to the movement to be simulated is determined, a three dimensional velocity component corresponding to the movement to be simulated is determined and control signals for controlling at least three force feedback devices are determined, wherein each of the three force feedback devices provides three dimensional force effects to a fixation point associated to each of it, the three force feedback devices being arranged at defined positions with regard to each other, and the three fixation points define a geometric plane.

Abstract: A method for enhancing quality of an image comprises deriving from an initial low-resolution image (LRI) an initial high-resolution image (IHRI) by upsampling (S2, S3), providing (S4), based on the initial low-resolution image (LRI), at least one downsampled filtered image (AIij, AIi?j?) with lower resolution, providing (S6), based on the initial low-resolution image (LRI), an unfiltered image (LRI, UIi?j?) having same resolution as the downsampled filtered image, selecting a patch (PI) from the initial high-resolution image (IHRI), finding (S8) filial patches (PA k) similar to the selected patch in the downsampled filtered image (AIij, AIi?j?), finding, in the unfiltered image (LRI, UIi?j?), parent patches (PPk) locally associated to the filial patches (PAk), and linearly combining (S14) the parent patches (PPk) to form an enhanced quality patch (EP).

Abstract: A method for constructing an epitome from an image divided into non overlapping blocks is disclosed. The method comprises: determining, for each block, similar patches in the image, a similar patch being a patch with similar content; constructing at least one epitome chart for the picture from the similar patches; wherein determining, for each block, similar patches in the image comprises: a) determining, for each current block, similar blocks in the image, a similar block being a block with content similar to the content of the current block; b) determining, for one current block and for the similar blocks determined for the current block, similar patches in the image, a similar patch being a patch with content similar to the content of the current block; c) repeating step b) for a next current block for which no similar patch is determined until at least one similar patch is determined for each block in the image.

Abstract: Super-resolution refers to a process of recovering the missing high-frequency details of a given low-resolution image. Known single image SR algorithms are often computationally intractable or unusable for most of the practical applications. The invention relates to a method for performing hierarchical super-resolution based on self content neighboring patches information is based on pyramidal decomposition. The intrinsic geometric property of an input LR patch neighborhood is obtained from the input LR patch and its K nearest neighbors taken from different down-scaled versions of the LR image.

Abstract: Reframing is used to re-size an image or video content, e.g. for displaying video signals with a given aspect ratio on a display having a different aspect ratio. Window cropping parameters (position and size over time) are constrained in order to optimise the rate/distortion of the encoded output video signal. Initial reframing is improved by computing a saliency map representing a user attention map which considers the video coding context and by providing a macroblock coding efficiency cost map and then taking the saliency map or a combined saliency/coding cost map into account so that the coding cost for said reframed video signal is smaller than the coding cost for other candidate reframing windows' sizes and positions.

Abstract: A color to be emulated by an ambient light source associated to a display is determined. A saliency map is determined for an image displayed on the display. A subset of pixels of the image with a saliency below a given threshold is selected based on the saliency map. The color to be emulated by the ambient light source is then determined from color values of the determined subset of pixels.