Abstract: A method for generating an adapted slice image from a focal stack of refocused images using an all-in-focus image derived from the focal stack comprises: selecting a slice image in the focal stack; selecting at least one object in the all-in-focus image to be focused in the adapted slice image; and generating the adapted slice image by combining the selected at least one object in the all-in-focus image onto the selected slice image.

Abstract: An apparatus and a method for controlling the same by a user are suggested. The suggested apparatus comprises: a detecting unit for detecting a first event executed by a user in relation to a plurality of devices including the apparatus; a control unit for generating a second event according to the first event detected by the detecting unit; an output unit for presenting the second event to the user, wherein the control unit generates a command for executing the first event on the apparatus as a function of a response of the user to the second event detected by the detecting unit. The suggested apparatus and method are suitable to provide a second event, before executing a command corresponding to a first event from the user, for the user to confirm the intention of the first event.

Abstract: The present disclosure relates to methods, devices or systems for detecting markers spread in an environment to estimate the pose of a device running an augmented reality application. Detecting markers and playing the AR application are two competitor tasks for the device's processing resources. When the number of markers to detect requires a substantial part of the device's processing resources, it may penalize the application processing. The present disclosure proposes different embodiments to optimize the marker list to detect according to the required processing resources for both tasks.

Abstract: The present disclosure relates to a new method to make a 3D acquisition of the video scene and to replace an object of the video scene by a substitute object corresponding to the product having substantially common 3D features than the object to be replaced and acceptable criteria values. It permits to minimize the appearance of hidden surfaces or occlusions.

Abstract: An augmented reality (AR) interactive system and method is provided. In one embodiment the systems comprises a head mounted user interface configured to receive user input, a processor configured to manage data based on user input, a camera and a display. The camera and the display are in processing communication with one another and the head mounted user interface via the processor. The processor is configured to determine a user's field of view and a center of the user's field of view based on output of a sensor and rendering images for output to the display. Each of the images include one or more objects and a plurality of signs each corresponding to a selectable object in the user's field of view. The rendering of images include altering a first display attribute of a given sign of the plurality of displayed signs based on determining that the user's field of view is centered on the given sign.

Abstract: A method of selection of an object in an environment including a plurality of real and/or virtual objects is described. The environment being displayed to a user through a display device includes an assignment of a gesture path to each object of the plurality of objects and the gesture path includes a series of gestures to be performed by the user to select the object.

Abstract: In order to blur a virtual object in a video in real time as the video is acquired by a device capturing a real scene, a salient idea is used which estimates an apparent motion vector between two successive images, being captured at two successive device poses, in which the apparent motion vector estimation is based on a motion of the device. The successive images are then filtered based on the estimated apparent motion vector.

Abstract: The present disclosure relates to methods, apparatus and systems for automatically adapt the zoom coefficient of the camera of a system when running an augmented reality application. A pose estimation is performed for the camera which captures the real scene and the boundaries of the AR scene are calculated. According to the camera frustum and the boundaries, three-dimension rectangles are computes to determine a zoom coefficient that would optimize the seeing of the seen and the optimal position for the camera. The zoom is automatically optically or digitally adapted and the optimal position is indicated to the user by visual, audio or haptic means.

Abstract: A method of registering an image to a model, comprising: providing a 3D facial model, said 3D facial model being parameterized from a plurality of facial expressions in images of a reference person to obtain a plurality of sparse and spatially localized deformation components; tracking a set of facial landmarks in a sequence of facial images of a target person to provide sets of feature points defining sparse facial landmarks; computing, a set of localized affine transformations connecting a set of facial regions of the said 3D facial model to the sets of feature points defining the sparse facial landmarks; and applying the localized affine transformations to the 3D facial model and registering the sequence of facial images with the transformed 3D facial model.

Abstract: A method for rendering a non-photorealistic (NPR) content from a set (SI) of at least one image of a same scene is provided. The set of images (SI) is associated with a depth image comprising a set of regions. Each region corresponds to a region of a given depth. The method for rendering a non-photorealistic content includes generation of a segmented image having at least one segmented region generated with a given segmentation scale. The at least one segmented region corresponds to at least one region of the set of regions. A binary edge image is generated in which at least one binary edge region is generated with a given edge extraction scale, the at least one binary edge region corresponding to at least one region of the set of regions. The non-photorealistic content is rendered by combining the segmented image and the binary edge image.

Abstract: The present disclosure relates to a new method to make a 3D acquisition of the video scene and to replace an object of the video scene by a substitute object corresponding to the product having substantially common 3D features than the object to be replaced and acceptable criteria values. It permits to minimize the appearance of hidden surfaces or occlusions.

Abstract: A method for generating an adapted slice image from a focal stack of refocused images using an all-in-focus image derived from the focal stack comprises: selecting a slice image in the focal stack; selecting at least one object in the all-in-focus image to be focused in the adapted slice image; and generating the adapted slice image by combining the selected at least one object in the all-in-focus image onto the selected slice image.

Abstract: The invention relates to a method for selection of a first object in a first virtual environment, the first object being represented in the first environment with a size of value less than a threshold value. According to an exemplary embodiment, in order to make the selection of the first object more convivial, the method includes steps for: estimating a direction associated with a pointing gesture of a user, determining a second object according to the estimated direction, the second object having a size of value greater than the threshold value, and selecting of the first object according to the second determined object. The invention also relates to a multimedia terminal adapted for the implementation of the method for selection.

Abstract: An apparatus and a method for controlling the same by a user are suggested. The suggested apparatus comprises: a detecting unit for detecting a first event executed by a user in relation to a plurality of devices including the apparatus; a control unit for generating a second event according to the first event detected by the detecting unit; an output unit for presenting the second event to the user, wherein the control unit generates a command for executing the first event on the apparatus as a function of a response of the user to the second event detected by the detecting unit. The suggested apparatus and method are suitable to provide a second event, before executing a command corresponding to a first event from the user, for the user to confirm the intention of the first event.

Abstract: The present invention relates to the domain of control devices for virtual games, and more specifically to a control device to control the displacement of a virtual player and of a virtual ball in the scope of a football video game. According to the invention, the control device is in the form of a ball connected to a pedestal. This ball is equipped with accelerometers able to detect a displacement force on the ball as a result of a strike exerted on said ball, pressure sensors able to detect a pressure force exerted on the surface of the ball and a processing module. The processor module generates using information from the accelerometers and pressure sensors control signals to control the displacement of the virtual ball in the video game and control signals to control the displacement of the virtual player in the video game.

Abstract: A Braille display system and a method for operating a refreshable Braille display 14 is provided. A string of characters is assigned to a drive signal for specifying the activation or deactivation of a tuple of dots which are raised through holes in a touch and sense surface of the Braille display 14 upon activation and which are retracted upon deactivation. The Braille display 14 is driven by a drive signal which is configured to activate and/or to deactivate the tuple of dots so as to generate a dynamic tactile display of said string of characters. The time dependent characteristic of activation and/or deactivation of the tuple of dots is defined by the string of characters.

Abstract: The invention relates to a method for processing video images comprising the steps for acquiring a plurality of video images during a time interval comprising a reference time t; associating a weighting factor with each of the video images, at least two of the video images having different weighting factors; memorising the video images; weighting each of the video images memorised with the associated weighting factor; generating an image called the reference image associated with the reference time t by averaging weighted video images. According to the invention, each video image is memorised with a resolution proportional to the weighting factor associated with said video image in order to reduce the memory space necessary for the storage of images and reduce the access time to the memorised images.

Abstract: A method and an apparatus for generating the depth map of a scene are described. The method comprises the steps of: projecting a structured light pattern with homogeneous density onto the scene to obtain a first depth map; segmenting the scene into at least one area based on the depth information in the first depth map; and projecting a structured light pattern with a heterogeneous density onto the scene by adapting the density of the light pattern to the at least one area of the scene to obtain a second depth map of the scene.

Abstract: The invention relates to a method for processing video images comprising the steps for acquiring a plurality of video images during a time interval comprising a reference time t; associating a weighting factor with each of the video images, at least two of the video images having different weighting factors; memorising the video images; weighting each of the video images memorised with the associated weighting factor; generating an image called the reference image associated with the reference time t by averaging weighted video images. According to the invention, each video image is memorised with a resolution proportional to the weighting factor associated with said video image in order to reduce the memory space necessary for the storage of images and reduce the access time to the memorised images.

Abstract: The present invention relates to the domain of video equipment. It concerns more specifically a transmission device able to transmit packets, said device comprising the means to extract image ticks from a synchronisation signal, the means to initialise an image counter from said image ticks, the means to initialise a CPT_PCR counter every “m” passage through zero of the image counter, CPT_PCR producing counting ramps CSE_PCR with a range M, the means to sample the counting ramps CSE_PCR every Tech period, where Tech is from a time base synchronised on all the stations of said network, and the means to transmit packets comprising a PCRe sample of the CSE_PCR counting ramp. According to the invention, it also comprises the means to insert in the packet:—an Num index identifying the CSE_PCR counting ramp from which the PCRe sample is realised, and—a time label Datejnit indicating a CSE_PCR counting ramp timestamp passage through a reference value PCR_REF comprised between 0 and M-1.