FRAME-BASED VIDEO SEGMENTATION
    1.
    发明公开

    公开(公告)号:US20240135549A1

    公开(公告)日:2024-04-25

    申请号:US18049473

    申请日:2022-10-24

    Abstract: Methods and systems of frame based image segmentation are provided. For example, a method for feature object tracking between frames of video data is provided. The method comprises receiving a first frame of video data, extracting a mask feature for each of one or more objects of the first frame, adjusting the first frame by applying each initial mask and corresponding identification to a respective object of the first frame, and outputting the adjusted first frame. The method further comprises tracking the one or more objects in one or more consecutive frames. The tracking comprises extracting a masked feature for each of one or more objects in the consecutive frame, adjusting the consecutive frame by applying each initial mask and corresponding identification for the consecutive frame to the respective object of the one or more objects of the consecutive frame, and outputting the adjusted consecutive frame.

    Compact models for object recognition

    公开(公告)号:US10706267B2

    公开(公告)日:2020-07-07

    申请号:US15869342

    申请日:2018-01-12

    Abstract: Methods, systems, and devices for object recognition are described. Generally, the described techniques provide for a compact and efficient convolutional neural network (CNN) model for facial recognition. The proposed techniques relate to a light model with a set of layers of convolution and one fully connected layer for feature representation. A new building block of for each convolution layer is proposed. A maximum feature map (MFM) operation may be employed to reduce channels (e.g., by combining two or more channels via maximum feature selection within the channels). Depth-wise separable convolution may be employed for computation reduction (e.g., reduction of convolution computation). Batch normalization may be applied to normalize the output of the convolution layers and the fully connected layer (e.g., to prevent overfitting). The described techniques provide a compact and efficient CNN model which can be used for efficient and effective face recognition.

    SYSTEMS AND METHODS FOR OUTLIER EDGE REJECTION

    公开(公告)号:US20190213787A1

    公开(公告)日:2019-07-11

    申请号:US15863434

    申请日:2018-01-05

    CPC classification number: G06T17/20 G06T7/13 G06T15/40

    Abstract: A method performed by an electronic device is described. The method includes incrementally adding a current node to a graph. The method also includes incrementally determining a respective adaptive edge threshold for each candidate edge between the current node and one or more candidate neighbor nodes. The method further includes determining whether to accept or reject each candidate edge based on each respective adaptive edge threshold. The method additionally includes performing refining based on the graph to produce refined data. The method also includes producing a three-dimensional (3D) model based on the refined data.

    SYSTEMS AND METHODS FOR ILLUMINANT-INVARIANT MODEL ESTIMATION

    公开(公告)号:US20190156515A1

    公开(公告)日:2019-05-23

    申请号:US15990469

    申请日:2018-05-25

    Abstract: A method is described. The method includes determining normalized radiance of an image sequence based on a camera response function (CRF). The method also includes determining one or more reliability images of the image sequence based on a reliability function corresponding to the CRF. The method further includes extracting features based on the normalized radiance of the image sequence. The method additionally includes optimizing a model based on the extracted features and the reliability images.

    USING OBJECT RE-IDENTIFICATION IN VIDEO SURVEILLANCE

    公开(公告)号:US20180374233A1

    公开(公告)日:2018-12-27

    申请号:US15635059

    申请日:2017-06-27

    Abstract: In various implementations, object tracking in a video content analysis system can be augmented with an image-based object re-identification system (e.g., for person re-identification or re-identification of other objects) to improve object tracking results for objects moving in a scene. The object re-identification system can use image recognition principles, which can be enhanced by considering data provided by object trackers that can be output by an object traffic system. In a testing stage, the object re-identification system can selectively test object trackers against object models. For most input video frames, not all object trackers need be tested against all object models. Additionally, different types of object trackers can be tested differently, so that a context provided by each object tracker can be considered. In a training stage, object models can also be selectively updated.

    Method and apparatus for facial recognition
    8.
    发明授权
    Method and apparatus for facial recognition 有权
    用于面部识别的方法和装置

    公开(公告)号:US09183429B2

    公开(公告)日:2015-11-10

    申请号:US13744906

    申请日:2013-01-18

    Abstract: Apparatus and methods for facial detection are disclosed. A plurality of images of an observed face is received for identification. Based at least on two or more selected images of the plurality of images, a template of the observed face is generated. In some embodiments, the template is a subspace generated based on feature vectors of the plurality of received images. A database of identities and corresponding facial data of known persons is searched based at least on the template of the observed face and the facial data of the known persons. One or more identities of the known persons are selected based at least on the search.

    Abstract translation: 公开了用于面部检测的装置和方法。 接收观察面的多张图像进行识别。 至少基于多个图像中的两个或更多个所选择的图像,生成观察到的面部的模板。 在一些实施例中,模板是基于多个接收图像的特征向量生成的子空间。 至少基于所观察到的面部的模板和已知人的面部数据来搜索已知人的身份和对应面部数据的数据库。 至少基于搜索来选择已知人的一个或多个身份。

    SYSTEMS AND METHODS FOR PRODUCING A THREE-DIMENSIONAL FACE MODEL
    9.
    发明申请
    SYSTEMS AND METHODS FOR PRODUCING A THREE-DIMENSIONAL FACE MODEL 有权
    用于生成三维面模型的系统和方法

    公开(公告)号:US20150009207A1

    公开(公告)日:2015-01-08

    申请号:US13936867

    申请日:2013-07-08

    CPC classification number: G06T15/00 G06K9/00208 G06T7/593 G06T2207/30201

    Abstract: A method for three-dimensional face generation is described. An inverse depth map is calculated based on a depth map and an inverted first matrix. The inverted first matrix is generated from two images in which pixels are aligned vertically and differ horizontally. The inverse depth map is normalized to correct for distortions in the depth map caused by image rectification. A three-dimensional face model is generated based on the inverse depth map and one of the two images.

    Abstract translation: 描述用于三维面部生成的方法。 基于深度图和倒置的第一矩阵计算反深度图。 反转的第一矩阵从两个图像生成,其中像素垂直对齐并且水平不同。 归一化反相深度图以校正由图像校正导致的深度图中的失真。 基于逆深度图和两个图像之一生成三维面部模型。

    Content-adaptive pixel processing systems, methods and apparatus
    10.
    发明授权
    Content-adaptive pixel processing systems, methods and apparatus 有权
    内容自适应像素处理系统,方法和装置

    公开(公告)号:US08824744B2

    公开(公告)日:2014-09-02

    申请号:US14045158

    申请日:2013-10-03

    CPC classification number: G06K9/00536 G06T7/20 G06T2207/20012

    Abstract: Embodiments include methods and systems for context-adaptive pixel processing based, in part, on a respective weighting-value for each pixel or a group of pixels. The weighting-values provide an indication as to which pixels are more pertinent to pixel processing computations. Computational resources and effort can be focused on pixels with higher weights, which are generally more pertinent for certain pixel processing determinations.

    Abstract translation: 实施例包括部分地基于每个像素或一组像素的相应加权值的用于上下文自适应像素处理的方法和系统。 加权值提供关于哪些像素与像素处理计算更相关的指示。 计算资源和努力可以集中在具有较高权重的像素上,这通常与某些像素处理确定相关。

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