-
公开(公告)号：US20150193941A1
公开(公告)日：2015-07-09
申请号：US14149839
申请日：2014-01-08
Inventor： Yan Wang
CPC classification number: G06T7/0085 , G06F3/038 , G06F3/042 , G06F3/0425 , G06T7/13 , G06T7/174
Abstract: A method of determining an edge of an object on a digital image sequence comprising the step of determining a first gradient direction profile of a first image in the digital image sequence; determining a second gradient direction profile of a second image in the digital image sequence; computing a differential profile based on the first gradient direction profile and the second gradient direction profile; and determining the edge of the object based on the differential profile wherein the differential profile registers gradient magnitudes of the second gradient direction profile and angular differences between the first gradient direction profile and the second gradient direction profile. A system thereof is also disclosed.
Abstract translation: 一种确定数字图像序列上的对象边缘的方法，包括确定数字图像序列中的第一图像的第一梯度方向轮廓的步骤; 确定所述数字图像序列中的第二图像的第二梯度方向轮廓; 基于所述第一梯度方向轮廓和所述第二梯度方向轮廓来计算差分轮廓; 以及基于所述差分轮廓来确定所述对象的边缘，其中所述差分轮廓记录所述第二梯度方向轮廓的梯度大小和所述第一梯度方向轮廓与所述第二梯度方向轮廓之间的角度差。 还公开了其系统。
-
公开(公告)号：US20150177831A1
公开(公告)日：2015-06-25
申请号：US14137868
申请日：2013-12-20
Inventor： Kin Lung Chan , Weiping Tang
CPC classification number: G06F3/013 , G02B5/30 , G02B27/0093 , G02B27/017 , G02B27/0172 , G02B2027/0138 , G02B2027/0187 , G06F3/017 , G06F3/0304 , G06F3/0321 , G06F2203/0381
Abstract: A bi-sensing optical system capable of transmitting signals for eye and object tracking and/or detection, and/or capable of transmitting signals comprising visible light to an eye of a user and non-visible light for eye tracking and object detection and/or tracking is disclosed herein.
Abstract translation: 一种双向感测光学系统，其能够发送用于眼睛和物体跟踪和/或检测的信号和/或能够将包括可见光的信号发送到用户的眼睛和用于眼睛跟踪和物体检测的不可见光和/或 本文公开了跟踪。
-
公开(公告)号：US20150027536A1
公开(公告)日：2015-01-29
申请号：US14500523
申请日：2014-09-29
Inventor： Wei Zhou , Ming Lu , Xuyan Huang
IPC: G02B19/00 , H01L31/052
CPC classification number: G02B19/0042 , F24S23/12 , F24S23/71 , G02B6/262 , G02B6/2852 , G02B17/002 , G02B19/0023 , G02B19/0028 , G02B19/0076 , H01L31/0525 , H01L31/0547 , Y02E10/42 , Y02E10/52
Abstract: An optical system for light energy concentration may comprise a light concentrator to convert incident light to converging light, a light collimating element to receive the converging light and to reduce an angle of convergence of the converging light, and a light directing element to direct the reduced-angle converging light to a light guide to transmit the directed light.
Abstract translation: 用于光能集中的光学系统可以包括将入射光转换成会聚光的聚光器，用于接收会聚光并减少会聚光的会聚角的光准直元件，以及导光元件， - 将会聚光聚光到光导以透射定向光。
-
公开(公告)号：US20140313582A1
公开(公告)日：2014-10-23
申请号：US14038380
申请日：2013-09-26
Inventor： Kwok Sing Cheng , Kin Ming Fan
CPC classification number: G02B7/09 , G02B7/08 , G02B27/646
Abstract: The subject matter disclosed herein relates to an imaging module comprising an electromagnetic actuator to provide focus-related and image stabilization-related functionality.
Abstract translation: 本文公开的主题涉及一种成像模块，其包括电磁致动器以提供与焦点相关的和与图像稳定相关的功能。
-
公开(公告)号：US20140240189A1
公开(公告)日：2014-08-28
申请号：US13774621
申请日：2013-02-22
Inventor： Corbett Ray Rowel
IPC: H01Q21/30
Abstract: Systems and methods in which antenna system configurations use over-coupling between a plurality of antenna elements for effectively providing wide-band operation are shown. Such over-coupling comprises a multiple antenna element configuration in which adaptation to one antenna element (e.g., an influencing antenna element) results in substantial operational frequency band adaptation to a second antenna element (e.g., a respondent antenna element). Over-coupling results in a frequency split at the second antenna, whereby the resonate frequency of the antenna element is split into a plurality of frequency bands. By implementing such frequency splitting with respect to otherwise narrow band antenna elements, the over-coupled antenna system may be made to effectively provide wide-band operation.
Abstract translation: 示出了天线系统配置在多个天线元件之间使用过耦合以有效提供宽带操作的系统和方法。 这种过耦合包括多天线元件配置，其中对一个天线元件（例如，影响天线元件）的适应导致对第二天线元件（例如，响应天线元件）的基本工作频带适配。 过耦合导致在第二天线处的频率分割，由此天线元件的谐振频率被分成多个频带。 通过相对于其他窄带天线元件实施这种频率分割，可以使过耦合天线系统有效地提供宽带操作。
-
Patent Agency Ranking
公开(公告)号：US20140176672A1
公开(公告)日：2014-06-26
申请号：US13722803
申请日：2012-12-20
Inventor： Wang Lu , Huo Yan , Ren Junyan
IPC: H04N13/00
CPC classification number: G06T7/0071 , G06T7/507 , G06T7/579
Abstract: Systems and methods which provide generation of image depth maps which more accurately represent the local depth discontinuity within images through use of image global depth maps adapted based upon image global motion and/or localized depth analysis utilizing relative relationships of attributes across depth discontinuities in the image are disclosed. Embodiments utilize a full global depth map which is larger than or equal to the image being converted in order to accommodate image global motion, in generating an image global depth map. In operation according to embodiments, an image global depth map is identified within the full global depth map, such as based upon global motion within the image. Localized depth analysis, using pixel attribute relative relationships, is applied with respect to the image global depth map according to embodiments to generate an image depth map which more accurately reflects the local depth discontinuities within the image.
Abstract translation: 通过使用基于图像全局运动和/或局部深度分析的图像全局深度图，利用图像中的深度不连续性的属性的相对关系，提供图像深度图的生成，其更准确地表示图像内的局部深度不连续性 被披露。 在生成图像全局深度图时，实施例利用大于或等于被转换图像的全局全景深度图，以适应图像全局运动。 在根据实施例的操作中，例如基于图像内的全局运动，在全局全景深度图中识别图像全局深度图。 根据实施例，对于图像全局深度图应用使用像素属性相对关系的局部深度分析，以生成更精确地反映图像内局部深度不连续性的图像深度图。
-
公开(公告)号：US12125240B2
公开(公告)日：2024-10-22
申请号：US17467683
申请日：2021-09-07
Inventor： Yao Cheng Liang , Ho Man Cheng , Ka Ho Mui
CPC classification number: G06T7/80 , G06T7/74 , G06T2207/30236
Abstract: Described is a method of calibrating a camera. The method comprises defining an area observed in a field of view (FOV) of the camera as a region of interest (ROI). The method includes selecting a plurality of physical reference points in said ROI and obtaining for each reference point physical position coordinates. The method also includes obtaining from said camera FOV or camera image data pixel locations for each point of reference and pairing each pixel location with the physical position coordinates of its respective reference point. Then, a relationship is derived from the paired pixel locations and physical position coordinates to enable a selected or identified pixel location in the camera FOV or camera image data to be transformed to physical position coordinates for a corresponding physical location in said ROI.
-
公开(公告)号：US12055601B2
公开(公告)日：2024-08-06
申请号：US17960283
申请日：2022-10-05
Inventor： Xin Li , Kwong Yin Tsang , Qingchun Li , Tin Ho Li
Abstract: Described is a method of identifying a short-circuit (SC) like event in a circuit breaker (CB). The method comprises sampling an incoming current to the CB to determine a maximum value of a slope of a curve of the incoming current. The method includes sampling the incoming current again before a level of the incoming current reaches a predetermined, preset, selected, or calculated SC threshold value THSC for the CB. The method involves determining from the sampled incoming current that a value of the slope of the incoming current has changed from its maximum slope value to a lower slope value to thereby determine that the incoming current is indicative of a SC like event and does not comprise a real SC event.
-
49.发明公开公开(公告)号：US20240069196A1
公开(公告)日：2024-02-29
申请号：US17898956
申请日：2022-08-30
Inventor： Weiwen Yu , Ka Sing Anthony Yuen
IPC: G01S17/10 , G01S7/481 , G01S7/4865
CPC classification number: G01S17/10 , G01S7/4817 , G01S7/4865
Abstract: Systems and methods which provide time of flight (ToF) measurement techniques implementing threshold-based sampling for waveform digitizing to generate a signal waveform representing a detected ToF measurement signal from which a ToF distance measurement is determinable are described. An example ToF measurement system may apply one or more curve fitting techniques, such as using one or more curve fitting hardware accelerators, to data from threshold-based sampling for waveform digitizing of the received pulse. Examples of a ToF measurement system may implement time-to-digital converters (TDCs) to sample a received pulse using a plurality of thresholds. ToF measurement systems of examples may implement multi-point filtering, such as using a hardware accelerator.
-
公开(公告)号：US20230384481A1
公开(公告)日：2023-11-30
申请号：US18448619
申请日：2023-08-11
Inventor： Yunhe Lai , Ying Suet Lau , Qingyi Yang , Jinbo Jiang
CPC classification number: G02B1/002 , G02B3/02 , G02B2207/101
Abstract: Systems and methods which provide single nanostructure-integrated metalens configurations implementing light focusing functionality are described. A single nanostructure-integrated metalens may comprise an optical substrate having a preconfigured mapping of integrated nanostructures providing metasurfaces for modulating the behaviors of electromagnetic waves to implement a thin, flat lens. A period distance for the nanostructures, a height of the nanostructures, and a quantization for lateral sizes of the nanostructures may be selected for a particular single nanostructure-integrated metalens configuration. One or more phase maps configured for light focusing may be computed with respect to one or more design wavelengths selected for focusing. The consolidated phase retardation requirements of the one ore more phase maps may be satisfied by a preconfigured mapping which defines the phase distribution for the nanostructures of a single nanostructure-integrated metalens implementation.
-
-
-
-
-
-
-
-
-
Search Results
214
records
(took 0.033 seconds)
