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公开(公告)号：US11367195B2
公开(公告)日：2022-06-21
申请号：US16910754
申请日：2020-06-24
Inventor： Yaoyu Lv , Lili Chen , Hao Zhang , Fuqiang Ma , Jiankang Sun , Shuo Zhang , Gang Li , Yachong Xue , Xiangjun Peng , Chenxi Zhao
Abstract: An image segmentation method, an image segmentation apparatus, an image segmentation device are provided, the image segmentation method including: extracting, from a current frame of a video image, a skeleton two-dimensional estimation and a skeleton three-dimensional estimation of a human three-dimensional skeleton; obtaining a target three-dimensional skeleton based on the skeleton two-dimensional estimation and the skeleton three-dimensional estimation; implementing image segmentation based on the target three-dimensional skeleton; wherein the human three-dimensional skeleton has multiple nodes, and the video image is a two-dimensional image, when calculating the target three-dimensional skeleton in the current frame, by comprehensively considering the skeleton two-dimensional estimation and skeleton three-dimensional skeleton estimation of the human three-dimensional skeleton in the current frame, the accuracy and robustness of the obtained target three-dimensional skeleton can be improved, thereby improving the accuracy of image segmentation.
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公开(公告)号：US20210241487A1
公开(公告)日：2021-08-05
申请号：US16956747
申请日：2019-11-19
Inventor： Jiankang Sun , Hao Zhang , Lili Chen , Hongzhen Xue , Fuqiang Ma , Minglei Chu , Xi Li
Abstract: The present disclosure relates to a pupil positioning method. The pupil positioning method may include: obtaining an eye image under illumination of a light source; determining a first internal point in a pupil of the eye image; calculating gradient changes of pixel points along a straight line starting from the first internal point toward outside of the pupil; determining a plurality of edge points at an edge of the pupil based on the gradient changes of the pixel points along the straight line; and performing ellipse fitting on the edge points to obtain a pupil center.
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公开(公告)号：US20200311888A1
公开(公告)日：2020-10-01
申请号：US16718731
申请日：2019-12-18
Inventor： Gang Li , Lili Chen , Jiankang Sun , Fuqiang Ma , Liyang Cui , Minglei Chu , Yachong Xue
Abstract: Embodiments of the present disclosure provides an image processing method, comprising: acquiring an initial image comprising an image of pupil; acquiring an accumulative histogram set of grayscale values of pixels in the initial image; determining a threshold for binarizing the initial image according to a grayscale value corresponding to a target region in respective accumulative histograms in the accumulative histogram set, wherein the target region corresponds to the image of pupil in the initial image; and binarizing the initial image according to the threshold. An image processing apparatus and a wearable device are further provided.
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14.发明申请公开(公告)号：US20190304130A1
公开(公告)日：2019-10-03
申请号：US16177356
申请日：2018-10-31
Inventor： Minglei Chu , Hao Zhang , Lili Chen , Guixin Yan , Bin Zhao , Ziqiang Guo , Jian Sun , Wenhong Tian , Xinjian Liu , Zhanshan Ma , Jiankang Sun
IPC: G06T7/73
Abstract: A spatial positioning method, a spatial positioning device, a spatial positioning system, and a computer readable storage medium are disclosed. The spatial positioning method includes: acquiring a two-dimensional image of an object to be positioned having a plurality of marking points, the two-dimensional image comprising a plurality of marking point images in one-to-one correspondence with the plurality of marking points; determining a correspondence between the plurality of marking points and the plurality of marking point images according to a relative positional relationship among the plurality of marking points and a relative positional relationship among the plurality of marking point images; and determining at least one spatial degree of freedom of the object to be positioned according to the relative positional relationship among the plurality of marking points, the relative positional relationship among the plurality of marking point images, and the correspondence between the plurality of marking points and the plurality of marking point images.
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15.发明授权公开(公告)号：US12020655B2
公开(公告)日：2024-06-25
申请号：US18014184
申请日：2021-08-16
Inventor： Yachong Xue , Xue Dong , Hao Zhang , Lili Chen , Jiankang Sun , Guixin Yan , Yaoyu Lv , Menglei Zhang , Xinkai Li
CPC classification number: G09G3/3426 , G06F3/013 , G09G2320/0626 , G09G2320/0686 , G09G2354/00 , G09G2360/16
Abstract: Provided is a method for controlling a display apparatus. In the method, the display apparatus receives at least two pieces of data to be displayed from at least two terminals respectively, wherein the at least two pieces of data to be displayed include screen projection data and status parameters of the at least two terminals, and then displays the status parameter, and performs a screen projection based on the screen projection data.
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Patent Agency Ranking
公开(公告)号：US11436787B2
公开(公告)日：2022-09-06
申请号：US16335350
申请日：2018-09-06
Inventor： Xuefeng Wang , Yukun Sun , Bin Zhao , Lixin Wang , Xi Li , Jianwen Suo , Wenyu Li , Qingwen Fan , Jinbao Peng , Yuanjie Lu , Yali Liu , Chenru Wang , Jiankang Sun , Hao Zhang , Lili Chen , Jinghua Miao
IPC: G06T15/20 , H04N13/383 , H04N13/344 , G06T15/00
Abstract: An image rendering method for a computer product coupled to a display apparatus may include rendering an entire display region of the display apparatus with a first rendering mode to generate a first rendering mode sample image, determining a target region in the entire display region, rendering the target region with a second rendering mode to generate a second rendering mode sample image, and transmitting data of the first rendering mode sample image and the second rendering mode sample image. The second rendering mode comprises at least a value of an image rendering feature that is higher than that of the first rendering mode.
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公开(公告)号：US11315281B2
公开(公告)日：2022-04-26
申请号：US16956747
申请日：2019-11-19
Inventor： Jiankang Sun , Hao Zhang , Lili Chen , Hongzhen Xue , Fuqiang Ma , Minglei Chu , Xi Li
Abstract: The present disclosure relates to a pupil positioning method. The pupil positioning method may include: obtaining an eye image under illumination of a light source; determining a first internal point in a pupil of the eye image; calculating gradient changes of pixel points along a straight line starting from the first internal point toward outside of the pupil; determining a plurality of edge points at an edge of the pupil based on the gradient changes of the pixel points along the straight line; and performing ellipse fitting on the edge points to obtain a pupil center.
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18.发明授权公开(公告)号：US11307423B2
公开(公告)日：2022-04-19
申请号：US16903400
申请日：2020-06-17
Inventor： Liyang Cui , Jiankang Sun , Lili Chen , Hao Zhang
Abstract: An image processing method for an augmented reality device, an augmented reality device and a storage medium are provided. The image processing method for the augmented reality device includes: tracking lines of sight of a left eye and a right eye to determine a position of a binocular watching range in a three-dimensional space; shooting an image of an external environment where the augmented reality (AR) device is located, and acquiring environment map point cloud data based on a Simultaneous Localization and Mapping (SLAM) algorithm; and updating the environment map point cloud data within the binocular watching range in response to detecting an update of the image of the external environment.
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公开(公告)号：US11301037B2
公开(公告)日：2022-04-12
申请号：US16336593
申请日：2018-08-23
Inventor： Jiankang Sun , Hao Zhang , Lili Chen , Minglei Chu , Guixin Yan , Guobing Yin , Hongzhen Xue , Fuqiang Ma
Abstract: The present application provides a virtual reality interaction method. The virtual reality interaction method includes acquiring a reference pupil image of a user; determining a pupil position in the reference pupil image; determining a gaze point in a virtual image based on the pupil position in the reference pupil image and a mapping relationship between first coordinates in a first coordinate system of the reference pupil image and second coordinates in a second coordinate system of the virtual image; and executing an operation based on a determination that the gaze point is in an activatable region of the virtual image and a determination of a gaze state.
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公开(公告)号：US11281897B2
公开(公告)日：2022-03-22
申请号：US16466908
申请日：2018-12-10
Inventor： Guixin Yan , Hao Zhang , Lili Chen , Jian Sun , Wenhong Tian , Jinghua Miao , Bin Zhao , Minglei Chu , Ziqiang Guo , Jiankang Sun
Abstract: A gesture shaking recognition method includes acquiring two adjacent frames of gesture images of a gesture (S100), selecting a tracking point in each of the two adjacent frames of gesture images (S200), determining positional information of a maximum value pixel point in each of the two adjacent frames of gesture images based on the tracking point (S300), and determining whether gesture shaking occurs (S400) based on the positional information of the maximum value pixel point in each of the two adjacent frames of gesture images and positional information of the tracking point in each of the two adjacent frames of gesture images. The tracking point in each of the two adjacent frames of gesture images may correspond to a same position on the gesture.
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