2020 IEEE International Conference on Multimedia & Expo Workshops (ICMEW), 2020
Immersive experiences of real captured scenes are still challenging due to the amount of data and... more Immersive experiences of real captured scenes are still challenging due to the amount of data and computational complexity required to achieve real-time. Indeed, Light Field (LF) videos are the required input to produce the sense of depth thanks to the motion parallax, but manipulating such multiview content is cumbersome and there is a lack of end-to-end pipelines that effectively edit and render such content.In this work, we propose a compact representation for LF videos in the form of an atlas. We provide the detailed pipeline to compute the atlas from captured LFs and we demonstrate its efficiency for real-time view synthesis with limited computer power requirements. Finally, we demonstrate how our atlases can be merged to produce real-time fusion of LF videos.
ABSTRACT Applicant: THOMSON LICENSING, lssy de Moulineaux (FR) Inventors: Luis Montalvo, Cesson S... more ABSTRACT Applicant: THOMSON LICENSING, lssy de Moulineaux (FR) Inventors: Luis Montalvo, Cesson Sevigne (FR); Serge Defrance, Cesson Sevigne (FR); Remy Gendrot, Cesson Sevigne (FR); Frederic Lefebvre, Cesson Sevigne (FR) Assignee: THOMSON LICENSING, lssy de Moulineaux (FR) Appl. No.: 13/717,764 Filed: Dec. 18, 2012 106 114 113 /\/ 112 (30) Foreign Application Priority Data Dec. 23, ABSTRACT The present invention relates to the ?eld of management of image data in data storage. In particular, the present invention relates to a method and device for automatic detection of duplicate images in data storage and corresponding device While taking into account user perception of What he consid ers to be duplicate images, Which method and device are particularly ef?cient With regard to the personalized, auto matic management of large amounts of image data. 102 N meta(b): identical \ copy (a) n1eta(b)=bacl<up Copy (a) meta(b):largely _ modified copy (a) meta(b):different resolution copy — (a) meta(b):different encoding copy (a) n1eta(b)=slightly i modified copy (a)
Proceedings of the 2nd ACM SIGCOMM workshop on Home networks - HomeNets '11, 2011
Devices forming a Home Network have different capabilities and interfaces, discouraging users to ... more Devices forming a Home Network have different capabilities and interfaces, discouraging users to organize their large digital content libraries. To help users, we propose to organize the Home Network according to a gateway-centric architecture, where the content access unification is realized at the file system level and where no additional software installation on devices is required. Solutions for realizing this unification individually exist for the various devices making up the Home Network (UPnP/DLNA devices, personal computers, cloud storage systems, etc). Unifying the content access at the file system level offers a powerful lever for many legacy applications, as far as these applications can access all shared data in the Home Network. Users can thus continue to use their PC's file manager or favorite media player to browse or display shared content. An indexing application, running on the gateway, possibly managed by the ISP and accessible from any device via a simple web interface, enables more powerful content retrieval and user experience. Such application may be enriched to offer additional services like content format adaptation, duplication detection or automatic backup. Lastly we describe how this gateway-centric architecture can be leveraged by cloud applications such as distributed storage systems.
2017 IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2017
The quantity and diversity of data in Light-Field videos makes this content valuable for many app... more The quantity and diversity of data in Light-Field videos makes this content valuable for many applications such as mixed and augmented reality or post-production in the movie industry. Some of such applications require a large parallax between the different views of the Light-Field, making the multi-view capture a better option than plenoptic cameras. In this paper we propose a dataset and a complete pipeline for Light-Field video. The proposed algorithms are specially tailored to process sparse and widebaseline multi-view videos captured with a camera rig. Our pipeline includes algorithms such as geometric calibration, color homogenization, view pseudo-rectification and depth estimation. Such elemental algorithms are well known by the state-of-the-art but they must achieve high accuracy to guarantee the success of other algorithms using our data. Along this paper, we publish our Light-Field video dataset that we believe may be of special interest for the community [1]. We provide the original sequences, the calibration parameters and the pseudo-rectified views. Finally, we propose a depth-based rendering algorithm for Dynamic Perspective Rendering.
Proceedings of the 2nd ACM SIGCOMM workshop on Home networks - HomeNets '11, 2011
Devices forming a Home Network have different capabilities and interfaces, discouraging users to ... more Devices forming a Home Network have different capabilities and interfaces, discouraging users to organize their large digital content libraries. To help users, we propose to organize the Home Network according to a gateway-centric architecture, where the content access unification is realized at the file system level and where no additional software installation on devices is required. Solutions for realizing this unification individually exist for the various devices making up the Home Network (UPnP/DLNA devices, personal computers, cloud storage systems, etc). Unifying the content access at the file system level offers a powerful lever for many legacy applications, as far as these applications can access all shared data in the Home Network. Users can thus continue to use their PC's file manager or favorite media player to browse or display shared content. An indexing application, running on the gateway, possibly managed by the ISP and accessible from any device via a simple web interface, enables more powerful content retrieval and user experience. Such application may be enriched to offer additional services like content format adaptation, duplication detection or automatic backup. Lastly we describe how this gateway-centric architecture can be leveraged by cloud applications such as distributed storage systems.
2020 IEEE International Conference on Multimedia & Expo Workshops (ICMEW), 2020
Immersive experiences of real captured scenes are still challenging due to the amount of data and... more Immersive experiences of real captured scenes are still challenging due to the amount of data and computational complexity required to achieve real-time. Indeed, Light Field (LF) videos are the required input to produce the sense of depth thanks to the motion parallax, but manipulating such multiview content is cumbersome and there is a lack of end-to-end pipelines that effectively edit and render such content.In this work, we propose a compact representation for LF videos in the form of an atlas. We provide the detailed pipeline to compute the atlas from captured LFs and we demonstrate its efficiency for real-time view synthesis with limited computer power requirements. Finally, we demonstrate how our atlases can be merged to produce real-time fusion of LF videos.
ABSTRACT Applicant: THOMSON LICENSING, lssy de Moulineaux (FR) Inventors: Luis Montalvo, Cesson S... more ABSTRACT Applicant: THOMSON LICENSING, lssy de Moulineaux (FR) Inventors: Luis Montalvo, Cesson Sevigne (FR); Serge Defrance, Cesson Sevigne (FR); Remy Gendrot, Cesson Sevigne (FR); Frederic Lefebvre, Cesson Sevigne (FR) Assignee: THOMSON LICENSING, lssy de Moulineaux (FR) Appl. No.: 13/717,764 Filed: Dec. 18, 2012 106 114 113 /\/ 112 (30) Foreign Application Priority Data Dec. 23, ABSTRACT The present invention relates to the ?eld of management of image data in data storage. In particular, the present invention relates to a method and device for automatic detection of duplicate images in data storage and corresponding device While taking into account user perception of What he consid ers to be duplicate images, Which method and device are particularly ef?cient With regard to the personalized, auto matic management of large amounts of image data. 102 N meta(b): identical \ copy (a) n1eta(b)=bacl<up Copy (a) meta(b):largely _ modified copy (a) meta(b):different resolution copy — (a) meta(b):different encoding copy (a) n1eta(b)=slightly i modified copy (a)
Proceedings of the 2nd ACM SIGCOMM workshop on Home networks - HomeNets '11, 2011
Devices forming a Home Network have different capabilities and interfaces, discouraging users to ... more Devices forming a Home Network have different capabilities and interfaces, discouraging users to organize their large digital content libraries. To help users, we propose to organize the Home Network according to a gateway-centric architecture, where the content access unification is realized at the file system level and where no additional software installation on devices is required. Solutions for realizing this unification individually exist for the various devices making up the Home Network (UPnP/DLNA devices, personal computers, cloud storage systems, etc). Unifying the content access at the file system level offers a powerful lever for many legacy applications, as far as these applications can access all shared data in the Home Network. Users can thus continue to use their PC's file manager or favorite media player to browse or display shared content. An indexing application, running on the gateway, possibly managed by the ISP and accessible from any device via a simple web interface, enables more powerful content retrieval and user experience. Such application may be enriched to offer additional services like content format adaptation, duplication detection or automatic backup. Lastly we describe how this gateway-centric architecture can be leveraged by cloud applications such as distributed storage systems.
2017 IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2017
The quantity and diversity of data in Light-Field videos makes this content valuable for many app... more The quantity and diversity of data in Light-Field videos makes this content valuable for many applications such as mixed and augmented reality or post-production in the movie industry. Some of such applications require a large parallax between the different views of the Light-Field, making the multi-view capture a better option than plenoptic cameras. In this paper we propose a dataset and a complete pipeline for Light-Field video. The proposed algorithms are specially tailored to process sparse and widebaseline multi-view videos captured with a camera rig. Our pipeline includes algorithms such as geometric calibration, color homogenization, view pseudo-rectification and depth estimation. Such elemental algorithms are well known by the state-of-the-art but they must achieve high accuracy to guarantee the success of other algorithms using our data. Along this paper, we publish our Light-Field video dataset that we believe may be of special interest for the community [1]. We provide the original sequences, the calibration parameters and the pseudo-rectified views. Finally, we propose a depth-based rendering algorithm for Dynamic Perspective Rendering.
Proceedings of the 2nd ACM SIGCOMM workshop on Home networks - HomeNets '11, 2011
Devices forming a Home Network have different capabilities and interfaces, discouraging users to ... more Devices forming a Home Network have different capabilities and interfaces, discouraging users to organize their large digital content libraries. To help users, we propose to organize the Home Network according to a gateway-centric architecture, where the content access unification is realized at the file system level and where no additional software installation on devices is required. Solutions for realizing this unification individually exist for the various devices making up the Home Network (UPnP/DLNA devices, personal computers, cloud storage systems, etc). Unifying the content access at the file system level offers a powerful lever for many legacy applications, as far as these applications can access all shared data in the Home Network. Users can thus continue to use their PC's file manager or favorite media player to browse or display shared content. An indexing application, running on the gateway, possibly managed by the ISP and accessible from any device via a simple web interface, enables more powerful content retrieval and user experience. Such application may be enriched to offer additional services like content format adaptation, duplication detection or automatic backup. Lastly we describe how this gateway-centric architecture can be leveraged by cloud applications such as distributed storage systems.
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Papers by Remy Gendrot