公开(公告)号：EP3268933A1

公开(公告)日：2018-01-17

申请号：EP16711371.1

申请日：2016-01-25

Applicant: Qualcomm Incorporated

Inventor： SUNDARESAN, Sairam ,  GAO, Dashan ,  ZHONG, Xin ,  QI, Yingyong

IPC: G06T7/20

CPC classification number: G06K9/00624 ,  G06K9/46 ,  G06K9/52 ,  G06K2009/4666 ,  G06T7/215 ,  G06T2207/10016 ,  G06T2210/12

Abstract: A method performed by an electronic device is described. The method includes determining a local motion pattern by determining a set of local motion vectors within a region of interest between a previous frame and a current frame. The method also includes determining a global motion pattern by determining a set of global motion vectors between the previous frame and the current frame. The method further includes calculating a separation metric based on the local motion pattern and the global motion pattern. The separation metric indicates a motion difference between the local motion pattern and the global motion pattern. The method additionally includes tracking an object based on the separation metric.

公开(公告)号：EP3218873A1

公开(公告)日：2017-09-20

申请号：EP15787098.1

申请日：2015-10-13

Applicant: Qualcomm Incorporated

Inventor： SARKIS, Michel Adib ,  QI, Yingyong ,  MOHAMED, Magdi Abuelgasim

IPC: G06T7/20

CPC classification number: G06K9/78 ,  G06T7/246 ,  G06T7/74 ,  G06T2207/10016 ,  G06T2207/30201

Abstract: A method for tracking an object by an electronic device is described. The method includes detecting an object position in an initial frame to produce a detected object position. The method also includes measuring one or more landmark positions based on the detected object position or a predicted object position. The method further includes predicting the object position in a subsequent frame based on the one or more landmark positions. The method additionally includes determining whether object tracking is lost. The method also includes avoiding performing object detection for the subsequent frame in a case that object tracking is maintained.

Abstract translation: 描述了用于通过电子设备追踪对象的方法。 该方法包括检测初始帧中的对象位置以产生检测到的对象位置。 该方法还包括基于检测到的对象位置或预测的对象位置来测量一个或多个地标位置。 该方法还包括基于一个或多个地标位置来预测后续帧中的对象位置。 该方法还包括确定对象跟踪是否丢失。 该方法还包括在维持对象跟踪的情况下避免对后续帧执行对象检测。

公开(公告)号：EP2948926A1

公开(公告)日：2015-12-02

申请号：EP14701895.6

申请日：2014-01-15

Applicant: Qualcomm Incorporated

Inventor： GAO, Dashan ,  ZHONG, Xin ,  QI, Yingyong ,  BI, Ning

IPC: G06T7/20

CPC classification number: G06T7/20 ,  G06T2207/10016 ,  G06T2207/20021 ,  G06T2207/20104 ,  G06T2207/30241

Abstract: A method for detecting and tracking a target object is described. The method includes performing motion-based tracking for a current video frame by comparing a previous video frame and the current video frame. The method also includes selectively performing object detection in the current video frame based on a tracked parameter.

公开(公告)号：EP2721583A1

公开(公告)日：2014-04-23

申请号：EP12727198.9

申请日：2012-06-05

Applicant: Qualcomm Incorporated

Inventor： QI, Yingyong ,  BI, Ning ,  ZHANG, Xuerui

IPC: G06T7/20

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

Abstract: Embodiments include methods and systems which determine pixel displacement between frames based 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 optical flow computations. Computational resources and effort can be focused on pixels with higher weights, which are generally more pertinent to optical flow determinations.

公开(公告)号：EP2561465A1

公开(公告)日：2013-02-27

申请号：EP11721153.2

申请日：2011-04-22

Applicant: Qualcomm Incorporated

Inventor： BI, Ning ,  QI, Yingyong ,  ZHOU, Qing

IPC: G06K9/00

CPC classification number: G06K9/00234

Abstract: In a particular illustrative embodiment, a method of determining a viewpoint of a person based on skin color area and face area is disclosed. The method includes receiving image data corresponding to an image captured by a camera, the image including at least one object to be displayed at a device coupled to the camera. The method further includes determining a viewpoint of the person relative to a display of the device coupled to the camera. The viewpoint of the person may be determined by determining a face area of the person based on a determined skin color area of the person and tracking a face location of the person based on the face area. One or more objects displayed at the display may be moved in response to the determined viewpoint of the person.

Abstract translation: 在特定的说明性实施例中，公开了一种基于皮肤颜色区域和面部区域来确定人的视点的方法。 该方法包括接收与由相机拍摄的图像相对应的图像数据，所述图像包括要耦合到相机的设备中要显示的至少一个对象。 该方法还包括确定人相对于耦合到照相机的设备的显示的视点。 可以通过基于人的确定的皮肤颜色区域来确定人的面部区域并且基于面部区域来跟踪人的面部位置来确定人的观点。 可以响应于所确定的人的观点而移动在显示器处显示的一个或多个对象。

公开(公告)号：EP2229768A1

公开(公告)日：2010-09-22

申请号：EP09701591.1

申请日：2009-01-16

Applicant: QUALCOMM Incorporated

Inventor： QI, Yingyong

IPC: H04N1/407 ,  G06T5/40

CPC classification number: H04N1/4074 ,  G06T5/009 ,  G06T5/10 ,  G06T5/40 ,  G06T2207/20056

Abstract: A histogram modeling based technique for image contrast enhancement. In some implementations, a histogram of an image is created and then transformed. Using the physics of sound or heat propagation, the technique may develop a spreaded histogram model that may be transformed. A nonlinear mapping may be created to remap an image for contrast enhancement. The technique may be performed without threshold tuning and may be implemented on a variety of display hardware.

公开(公告)号：EP2047688A2

公开(公告)日：2009-04-15

申请号：EP07813610.8

申请日：2007-07-31

Applicant: QUALCOMM Incorporated

Inventor： QI, Yingyong

IPC: H04N7/50

CPC classification number: H04N19/176 ,  H04N19/54 ,  H04N19/61

Abstract: Techniques for performing mesh-based video compression/decompression with domain transformation are described. A video encoder partitions an image into meshes of pixels, processes the meshes of pixels to obtain blocks of prediction errors, and codes the blocks of prediction errors to generate coded data for the image. The meshes may have arbitrary polygonal shapes and the blocks may have a predetermined shape, e.g., square. The video encoder may process the meshes of pixels to obtain meshes of prediction errors and may then transform the meshes of prediction errors to the blocks of prediction errors. Alternatively, the video encoder may transform the meshes of pixels to blocks of pixels and may then process the blocks of pixels to obtain the blocks of prediction errors. The video encoder may also perform mesh-based motion estimation to determine reference meshes used to generate the prediction errors.

公开(公告)号：EP1730691A2

公开(公告)日：2006-12-13

申请号：EP05724662.1

申请日：2005-03-02

Applicant: Qualcomm, Incorporated

Inventor： ANDERSON, Michael Hugh ,  IRVINE, Ann Chris ,  KAMATH, Nidish Ramachandra ,  YU, Chun ,  CHUANG, Dan Minglun ,  TIAN, Yushi ,  QI, Yingyong

IPC: G06T1/20

CPC classification number: G06T15/40 ,  G06T15/005

Abstract: A graphics pipeline includes a plurality of sequentially arranged processing stages which render display pixel data from input primitive object data. The processing stages include at least a texturing stage and a depth test stage, and the depth test stage may be located earlier in the graphics pipeline than the texturing stage.