Abstract: The invention relates to layered depth data. In multi-view images, there is a large amount of redundancy between images. Layered Depth Video format is a well-known formatting solution for formatting multi-view images which reduces the amount of redundant information between images. In LDV, a reference central image is selected and information brought by other images of the multi-view images that are mainly regions occluded in the central image are provided. However, LDV format contains a single horizontal occlusion layer, and thus fails rendering viewpoints that uncover multiple layers dis-occlusions. The invention uses light filed content which offers disparities in every directions and enables a change in viewpoint in a plurality of directions distinct from the viewing direction of the considered image enabling to render viewpoints that may uncover multiple layer dis-occlusions which may occurs with complex scenes viewed with wide inter-axial distance.

Abstract: A method for presenting an image on a display device (100) includes modifying the image by applying a geometric transformation to the image so that an area of the image on the display device is presented to a viewer with higher density of pixels than that in the rest of the image (S18).

Abstract: A method of and apparatus configured to perform obtaining a captured image of a real environment. The real environment includes a device having a screen. The captured image includes the device having the screen. The pose of the screen is determined based on the captured image. From a source other than the captured image, 2D content to be displayed on a representation of the screen in the virtual scene is obtained. The 2D content is projected to produce projected 2D content. The projected 2D content aligned to the pose of the screen. The virtual scene is generated as a combination of a virtual content item and the projected 2D content.

Abstract: The present disclosure relates to a method for providing assistance to a colorist in color grading of a virtual reality video content, called VR content. The method includes receiving the VR content being graded by a color grading station and receiving position information representative of the position of at least one hand of a colorist versus the color grading station. The method further includes generating, based on the position information, visual control information showing the position of the at least one hand of the colorist versus at least one grading control element of the color grading station and displaying the visual control information together with the graded VR content on a head mounted display carried by the colorist in order to help the colorist manipulating the at least one grading control element.

Abstract: The invention relates to layered depth data. In multi-view images, there is a large amount of redundancy between images. Layered Depth Video format is a well-known formatting solution for formatting multi-view images which reduces the amount of redundant information between images. In LDV, a reference central image is selected and information brought by other images of the multi-view images that are mainly regions occluded in the central image are provided. However, LDV format contains a single horizontal occlusion layer, and thus fails rendering viewpoints that uncover multiple layers dis-occlusions. The invention uses light filed content which offers disparities in every directions and enables a change in viewpoint in a plurality of directions distinct from the viewing direction of the considered image enabling to render viewpoints that may uncover multiple layer dis-occlusions which may occurs with complex scenes viewed with wide inter-axial distance.

Abstract: The present disclosure relates to a method for providing assistance to a colorist in color grading of a virtual reality video content, called VR content. The method includes receiving the VR content being graded by a color grading station and receiving position information representative of the position of at least one hand of a colorist versus the color grading station. The method further includes generating, based on the position information, visual control information showing the position of the at least one hand of the colorist versus at least one grading control element of the color grading station displaying the visual control information together with the graded VR content on a head mounted display carried by the colorist in order to help the colorist manipulating the at least one grading control element.

Abstract: The invention relates to layered depth data. In multi-view images, there is a large amount of redundancy between images. Layered Depth Video format is a well-known formatting solution for formatting multi-view images which reduces the amount of redundant information between images. In LDV, a reference central image is selected and information brought by other images of the multi-view images that are mainly regions occluded in the central image are provided. However, LDV format contains a single horizontal occlusion layer, and thus fails rendering viewpoints that uncover multiple layers dis-occlusions. The invention uses light filed content which offers disparities in every directions and enables a change in viewpoint in a plurality of directions distinct from the viewing direction of the considered image enabling to render viewpoints that may uncover multiple layer dis-occlusions which may occurs with complex scenes viewed with wide inter-axial distance.

Abstract: A method of and apparatus configured to perform obtaining a captured image of a real environment. The real environment includes a device having a screen. The captured image includes the device having the screen. The pose of the screen is determined based on the captured image. From a source other than the captured image, 2D content to be displayed on a representation of the screen in the virtual scene is obtained. The 2D content is projected to produce projected 2D content. The projected 2D content aligned to the pose of the screen. The virtual scene is generated as a combination of a virtual content item and the projected 2D content.

Abstract: A method and device for compositing and/or transmitting a first image to a first display device, the method comprising receiving a second image representative of a scene, the scene comprising a second display device displaying a third image; receiving the third image; obtaining a first information representative of pose of the second display device with respect to the scene; distorting the third image according to the first information; generating the first image by combining the second image and the distorted third image using the obtained first information; and transmitting data representative of the first image.

Abstract: The invention relates to layered depth data. In multi-view images, there is a large amount of redundancy between images. Layered Depth Video format is a well-known formatting solution for formatting multi-view images which reduces the amount of redundant information between images. In LDV, a reference central image is selected and information brought by other images of the multi-view images that are mainly regions occluded in the central image are provided. However, LDV format contains a single horizontal occlusion layer, and thus fails rendering viewpoints that uncover multiple layers dis-occlusions. The invention uses light filed content which offers disparities in every directions and enables a change in viewpoint in a plurality of directions distinct from the viewing direction of the considered image enabling to render viewpoints that may uncover multiple layer dis-occlusions which may occurs with complex scenes viewed with wide inter-axial distance.

Abstract: The disclosure pertains a method for determining a rendered tridimensional content intended to a viewer. The method includes inputting a reference content comprising at least a reference view, inputting at least one information related to the viewer's eyes orientation relatively to a reference axis of a display device, and determining a rendered view as a function of the reference view, and the information related to the viewer's eyes orientation relatively to the reference axis of the display device.

Abstract: A method and device for compositing and/or transmitting a first image to a first display device, the method comprising receiving a second image representative of a scene, the scene comprising a second display device displaying a third image; receiving the third image; obtaining a first information representative of pose of the second display device with respect to the scene; distorting the third image according to the first information; generating the first image by combining the second image and the distorted third image using the obtained first information; and transmitting data representative of the first image.

Abstract: The disclosure relates to a method for obtaining a modified multi-view content from an original multi-view content, said method being characterized in that it comprises: determining (20), from a disparity-related map, a separation line separating adjacent first and second image regions, comprising at least one line portion each separating adjacent first and second image portions belonging respectively to the first image region and the second image region and such that a disparity-related value difference between the first and the second image portion is higher than a disparity-related value difference between the first and the second portion is higher than a disparity-related value difference threshold; obtaining (40) a modified multi-view content by blurring a visual discomfort area that is an area of the second image region, which extends from the separation line over a given distance.

Abstract: A method and an apparatus for adapting a number of views delivered by an auto-stereoscopic display device are presented. The method is executed by an electronic device, and it comprises: determining a number of views based on a list of number of views supported by the auto-stereoscopic display device and at least an information indicative of a computing power of a device needed to deliver content for each view; obtaining a correspondence map between sub-pixels of the auto-stereoscopic display device and the number of views; and providing content to the sub-pixels of the auto-stereoscopic display device according to the correspondence map.

Abstract: A method for evaluating color differences of pixels is provided. The method comprises obtaining color information of a first pixel in a color opponent space obtaining color information of a second pixel in the color opponent space, defining a half-line in the color opponent space based on the color information of the first pixel, and determining distance between color information of the second pixel and half-line in the color opponent space.

Abstract: The invention consists in a method of and a device for adapting 3D content to an observer wearing prescription glasses. The method comprises the step of—providing information about prescription glasses of the observer;—calculating a value representative of the optical deviation created by the glasses from the provided information, for a given direction;—estimating a depth adjustment value as a function of the calculated value and—modifying the depth of the 3D content according to the estimated depth adjustment value.

Abstract: In one embodiment, it is proposed a method for displaying a 3D content on a multi-view display device, said multi-view display device being able to display k-views, with k an integer greater or equal to two, said method being implemented on said multi-view display device. Such method is remarkable in that it comprises: obtaining a user's input being a depth level and/or a viewpoint; modifying said user's input in function of at least one configuration parameter, said modifying defining a group of images, said images from said group being spatially successive images of a scene at a same time; and displaying k-views on said multi-view display device, said k-views being obtained from a process taking into accounts elements from said group of images.

Abstract: A method for evaluating color differences of pixels is provided. The method comprises obtaining color information of a first pixel in a color opponent space obtaining color information of a second pixel in the color opponent space, defining a half-line in the color opponent space based on the color information of the first pixel, and determining distance between color information of the second pixel and half-line in the color opponent space.

Abstract: The disclosure pertains a method for determining a rendered tridimensional content intended to a viewer. The method includes inputting a reference content comprising at least a reference view, inputting at least one information related to the viewer's eyes orientation relatively to a reference axis of a display device, and determining a rendered view as a function of the reference view, and the information related to the viewer's eyes orientation relatively to the reference axis of the display device.

Abstract: A method for presenting an image on a display device (100) includes modifying the image by applying a geometric transformation to the image so that an area of the image on the display device is presented to a viewer with higher density of pixels than that in the rest of the image (S18).