METHOD AND DEVICE FOR BLURRING A VIRTUAL OBJECT IN A VIDEO

    公开(公告)号:EP3296952A1

    公开(公告)日:2018-03-21

    申请号:EP17189613.7

    申请日:2017-09-06

    申请人: Thomson Licensing

    IPC分类号: G06T5/00 G06T11/00

    摘要: 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 comprises estimating an apparent motion vector between two successive images, being captured at two successive device poses, wherein 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.

    METHOD, APPARATUS AND SYSTEM FOR DETERMINING NORMAL AND REFLECTANCE PARAMETERS USING SEQUENTIAL ILLUMINATION
    4.
    发明公开
    METHOD, APPARATUS AND SYSTEM FOR DETERMINING NORMAL AND REFLECTANCE PARAMETERS USING SEQUENTIAL ILLUMINATION 审中-公开
    方法,装置和系统正常和反射参数由序照明测定

    公开(公告)号:EP3151190A1

    公开(公告)日:2017-04-05

    申请号:EP15306547.9

    申请日:2015-09-30

    申请人: Thomson Licensing

    IPC分类号: G06T5/50 G06T7/00 G06K9/20

    摘要: A method, apparatus and system for the determination of normal and reflectance parameters using sequential illumination and recorded depth information include illuminating a scene using a light source such that every other frame of the scene recorded by a camera is illuminated by the multiplexed light source. Depth data of the scene is recorded concurrent with the recording of the scene by the camera. A light source contribution image for the scene is determined using a difference between recorded images containing the light source illumination and recorded images not containing the multiplexed light source illumination. Finally, the normal and reflectance parameters are determined using the recorded depth information and the light source contribution image.

    摘要翻译: 对于使用顺序照明和记录的深度信息和正常反射率参数的确定的方法,装置和系统包括照明用光源搜索场景确实由摄像机拍摄的场景的每隔一帧被复用的光源照亮。 场景的深度数据被记录并发与场景的相机录制。 用于场景A光源贡献图像是确定性的使用记录的图像包含所述光源照明和不包含复用的光源照度记录的图像之间的差开采。 最后,在正常和反射率参数是确定性的使用记录的深度信息和所述光源的贡献图像开采。

    METHOD AND DEVICE FOR GENERATING A MOTION FIELD FOR A VIDEO SEQUENCE
    6.
    发明公开
    METHOD AND DEVICE FOR GENERATING A MOTION FIELD FOR A VIDEO SEQUENCE 有权
    方法和装置用于产生运动领域的视频序列

    公开(公告)号:EP2805306A1

    公开(公告)日:2014-11-26

    申请号:EP13701943.6

    申请日:2013-01-17

    申请人: Thomson Licensing

    IPC分类号: G06T7/20

    摘要: The invention relates to a method for generating a motion field between a current frame and a reference frame belonging to a video sequence from an input set of elementary motion fields. The method comprises the following steps performed for each pixel belonging to said current frame: determining a plurality of candidate motion vectors between the current frame and the reference frame wherein each candidate motion vector is the result of the sum of a first motion vector between the current frame and an intermediary frame belonging to the video sequence and of a second motion vector between the intermediary frame and the reference frame; and selecting a motion vector among candidate motion vectors. The method is remarkable in that the first motion vector belongs to the input set of elementary motion fields and the second motion vector belongs to a set of previously selected motion vectors for other current frames of the video sequence.

    AUTOMATIC CONVERSION OF A STEREOSCOPIC IMAGE IN ORDER TO ALLOW A SIMULTANEOUS STEREOSCOPIC AND MONOSCOPIC DISPLAY OF SAID IMAGE
    7.
    发明公开
    AUTOMATIC CONVERSION OF A STEREOSCOPIC IMAGE IN ORDER TO ALLOW A SIMULTANEOUS STEREOSCOPIC AND MONOSCOPIC DISPLAY OF SAID IMAGE 审中-公开
    用于同时立体感平面视觉表示图象的立体图像的自动转换

    公开(公告)号:EP2710804A1

    公开(公告)日:2014-03-26

    申请号:EP12721307.2

    申请日:2012-05-16

    申请人: Thomson Licensing

    IPC分类号: H04N13/00 H04N13/04

    CPC分类号: H04N13/359 H04N13/111

    摘要: The invention concerns a device and a method for generating on a defined display screen of determined size a 3D image including a left view and a right view from an incoming video signal to be viewed at a distance by a viewer. The device comprises: Means for measuring the distance between the viewer and the display; means for determining a disparity threshold value in relation with the determined size of the display screen and the measured distance to achieve a 2D and 3D compatibility level; means for editing a disparity map corresponding to the values of disparity between the left and the right views; means for analyzing with an histogram the disparity values of the disparity map in comparison to the determined threshold value; and means for replacing one of the left or right view by a view interpolation so that the disparity level of the histogram is below the determined threshold value, if the disparity level of the histogram is above the determined disparity threshold value.

    METHOD FOR SEGMENTING VIDEO SEGMENTS
    8.
    发明授权
    METHOD FOR SEGMENTING VIDEO SEGMENTS 有权
    缩放视频片段的方法

    公开(公告)号:EP2277144B1

    公开(公告)日:2011-10-12

    申请号:EP09721322.7

    申请日:2009-03-17

    申请人: Thomson Licensing

    IPC分类号: G06T7/20

    摘要: The invention proposes a new motion layer extraction method using reference layer mosaics. One motivation is to work with distant images (whose motion in between is more discriminative) while reducing the number of pairs of images to be handled benefiting from the fact that layer mosaics represent the video sequence in a compact way. In this model, not only extracted layer supports for mosaicing are used but also layer mosaics for motion segmentation. In the proposed approach, instead of linking temporally many images pairs from the sequence, the currently processed original image is linked temporally with two sets of motion layer mosaics only. Thus a new image-to-mosaic data term replaces the usual image-to-image motion data term in the objective classification function.

    摘要翻译: 本发明提出了一种使用参考层马赛克的新的运动层提取方法。 一个动机是使用遥远的图像(它们之间的运动更具有区分性),同时减少要处理的图像对的数量,这受益于层镶嵌以紧凑方式表示视频序列的事实。 在这个模型中,不仅提取了用于镶嵌的提取层支撑,而且还使用了用于运动分割的图层镶嵌。 在所提出的方法中,不是从序列中暂时地链接许多图像对,而是将当前处理的原始图像仅与两组运动层马赛克临时链接。 因此,新的图像到马赛克数据项取代了目标分类函数中通常的图像到图像运动数据项。

    SCALABLE ENCODING AND DECODING OF INTERLACED DIGITAL VIDEO DATA
    9.
    发明公开
    SCALABLE ENCODING AND DECODING OF INTERLACED DIGITAL VIDEO DATA 有权
    可伸缩编码和解码嵌套数字视频

    公开(公告)号:EP1606950A1

    公开(公告)日:2005-12-21

    申请号:EP04713024.0

    申请日:2004-02-20

    申请人: THOMSON Licensing

    IPC分类号: H04N7/26 H04N7/46

    摘要: Fully scalable encoder and decoder for interlaced video A method for encoding an interlaced sequence of digital video data decomposes the interlaced video sequence (I) into first (F1) and second (F2) fields, performs digital filtering (SF1) to get lower frequency (L) and higher frequency (H) component signals of the first fields (F1), and uses spatio-temporal filtering (STF) and motion estimation (ME1) for generating base layer signals (P, MV1) being suitable for reconstruction of a progressive mode video sequence (V1,V2) in a receiver. Advantageously, both the spatio-temporal filter (STF) at the encoder, and the inverse process (STS) at the receiver, can perform scaling in spatial and temporal dimension. The second fields (F2) are used to generate enhancement signals (FF2, MV2), which enable a receiver to reproduce an interlaced video sequence of the full, or scaled, spatial and/or temporal resolution.

    METHOD AND DEVICE FOR DETERMINING A CHARACTERISTIC OF A DISPLAY DEVICE

    公开(公告)号:EP3407296A1

    公开(公告)日:2018-11-28

    申请号:EP17305600.3

    申请日:2017-05-23

    申请人: Thomson Licensing

    IPC分类号: G06T7/00

    摘要: In situation where a capturing device is capturing a first image of a scene comprising a display device displaying a second image, a salient idea is to send both the captured first image and the second image, being displayed by the display device to a processing device, for comparatively processing the first and the second image to determine a characteristic associated with the display device. Being able to process the first image (comprising a displayed second image) together with the original second image advantageously allows to determine various characteristics associated with the display device that altered the displayed second image within the first image, making it different from the initial second image. Characteristics associated with the display device are for example a specular reflection occurring on the display device in the scene and disturbing the capture of the scene. In a second and non-limiting example a characteristic of the display device is the color reproduction function of the display device that makes the displayed second image within a displayed first image be different from the displayed second image in the scene.