公开(公告)号：US20080159614A1

公开(公告)日：2008-07-03

申请号：US11888683

申请日：2007-08-02

申请人： Chao He ,  Gary A. Ross

发明人： Chao He ,  Gary A. Ross

IPC分类号： G06K9/64

CPC分类号： G06K9/6267 ,  G06K9/6284

摘要： A technique for use in automatic validation of a media item involves accessing a template that comprises multiple one-class classifiers, each corresponding to one of multiple classes to which the media item might belong, and then applying each of the one-class classifiers to an image of the media item to generate a result set for each of the multiple classes. The result set for each media class is then analyzed to assess whether the media item belongs to that class.

摘要翻译： 用于媒体项目的自动验证的技术涉及访问包括多个一类分类器的模板，每个分类器对应于媒体项目可能属于的多个类别之一，然后将每个一类分类器应用于 媒体项目的图像，以生成多个类中的每一个的结果集。 然后分析每个媒体类的结果集，以评估媒体项是否属于该类。

公开(公告)号：USD919741S1

公开(公告)日：2021-05-18

申请号：US29729696

申请日：2020-03-30

申请人： Chao He

设计人： Chao He

公开(公告)号：US09704031B2

公开(公告)日：2017-07-11

申请号：US14142981

申请日：2013-12-30

申请人： Gary A Ross ,  Chao He

发明人： Gary A Ross ,  Chao He

IPC分类号： G06K9/00 ,  G06K9/68 ,  B07C5/00 ,  G06K9/74 ,  G07F9/02 ,  G06K9/20 ,  G06K9/54 ,  G06K9/62 ,  G07D7/12 ,  G07D7/162 ,  G07D7/20 ,  G06T7/33 ,  G06T7/12

CPC分类号： G06K9/00442 ,  G06K9/2018 ,  G06K9/54 ,  G06K9/6202 ,  G06T7/12 ,  G06T7/337 ,  G06T2207/10048 ,  G06T2207/30176 ,  G07D7/12 ,  G07D7/162 ,  G07D7/206

摘要： A method and apparatus for identifying a media item. The apparatus includes a module for receiving media items and capturing an image of a received media item. The method involves ascertaining external dimensions of the media item from the captured image; creating a monochromatic image based on high contrast boundaries within the captured image; matching the monochromatic image to one of a plurality of templates of media items of approximately the same external dimensions as the media item; and providing details of the matched template, including type and orientation of the media item corresponding to the matched template.

公开(公告)号：US08750491B2

公开(公告)日：2014-06-10

申请号：US12409520

申请日：2009-03-24

申请人： Vinod Prakash ,  Chao He

发明人： Vinod Prakash ,  Chao He

IPC分类号： H04M9/08 ,  H04M3/00

CPC分类号： H04M3/002 ,  H04M9/082

摘要： Architecture that mitigates echo in voice communications using echo detection and adaptive management of attenuation by a non-linear processor (NLP). Suppression values provided by the NLP are determined based on echo detection and retained on a case-by-case basis to automatically increase or decrease the attenuation as needed. Feedback is incorporated that where the controls for the NLP attenuation is given by the amount of echo that remains, and this in turn affects the amount of echo that remains.

摘要翻译： 使用回波检测和非线性处理器（NLP）衰减的自适应管理来减轻语音通信中回波的体系结构。 由NLP提供的抑制值基于回波检测确定，并且在逐个基础上保留以根据需要自动增加或减少衰减。 纳入反馈，其中NLP衰减的控制由剩余的回波量给出，这反过来影响剩余的回波量。

公开(公告)号：US20130259301A1

公开(公告)日：2013-10-03

申请号：US13436078

申请日：2012-03-30

申请人： Ping Chen ,  Chao He ,  Gary Ross

发明人： Ping Chen ,  Chao He ,  Gary Ross

IPC分类号： G06K9/68

CPC分类号： G07D7/187

摘要： A method of detecting staining on a media item is described. An example method includes receiving an image of the media item, including a plurality of pixels having different intensity values within a range of intensity values, applying central weighting to the received image, applying a threshold to each pixel in the centrally-weighted image to transform each pixel to a binary value, comparing a pixel in the evaluation image with a pixel in a binary reference image to create a difference image including (i) a stain pixel at each spatial location in which a pixel in the evaluation image has a low intensity pixel and the corresponding pixel in the binary reference image has a high intensity pixel, and (ii) a non-stain pixel at all other spatial locations. The media item is identified as stained in the event that the difference image meets a staining criterion.

摘要翻译： 描述了在媒体项目上检测染色的方法。 一种示例性方法包括接收媒体项目的图像，包括在强度值范围内具有不同强度值的多个像素，对接收到的图像应用中央加权，向中央加权图像中的每个像素应用阈值以变换 每个像素为二进制值，将评估图像中的像素与二进制参考图像中的像素进行比较，以产生差分图像，其包括（i）评估图像中的像素具有低强度的每个空间位置处的污点像素 像素和二进制参考图像中的对应像素具有高强度像素，以及（ii）所有其它空间位置处的非污点像素。 在差异图像满足染色标准的情况下，媒体项目被识别为染色。

公开(公告)号：US08170226B2

公开(公告)日：2012-05-01

申请号：US12143587

申请日：2008-06-20

申请人： Vinod Prakash ,  Chao He

发明人： Vinod Prakash ,  Chao He

IPC分类号： A61F11/06 ,  H04M9/08

CPC分类号： H04M9/082

摘要： In one embodiment, a two-way telecommunication device may perform acoustic echo cancellation on incoming signals. An audio decoding module may produce an audio render signal. An audio capture interface may receive an audio capture signal. A short length adaptive filter may determine a time delay between the audio render signal and the audio capture signal by adaptively predicting a sub-band of the audio capture signal using a corresponding sub-band of the audio render signal.

摘要翻译： 在一个实施例中，双向通信设备可以对输入信号执行声学回声消除。 音频解码模块可以产生音频呈现信号。 音频捕获接口可以接收音频捕获信号。 短距自适应滤波器可以通过使用音频渲染信号的对应子带自适应地预测音频捕获信号的子带来确定音频渲染信号和音频捕获信号之间的时间延迟。

公开(公告)号：US20090319589A1

公开(公告)日：2009-12-24

申请号：US12143761

申请日：2008-06-21

申请人： Marc Holder Kluver ,  Xiaoqin Sun ,  Chao He

发明人： Marc Holder Kluver ,  Xiaoqin Sun ,  Chao He

IPC分类号： G06F7/00 ,  G06F7/556

CPC分类号： G06F7/4833

摘要： Technologies are described herein for using efficient log-linear transformations to reduce the complexity of numerical computations. Efficient transforms can convert between linear fixed point values and log space values in about ten processor cycles per sample. A fractional exponent and an integer exponent may be combined together into a log domain variable representation. Log domain arithmetic operations may be performed on the combined variable as a whole. A fractional exponent representation of log domain numerical values can support automatic bit carries from the fractional exponent into the integer exponent. If an intermediate result of a calculation in the log domain causes the fractional portion of the exponent to exceed one, a bit carry can occur over to the integer component of the exponent. This carry can occur automatically due to the conjoined placement of the integer and fractional components of the exponent in the log domain combined variable.

摘要翻译： 本文描述了使用有效对数线性变换来降低数值计算的复杂度的技术。 有效的变换可以在每个样本的大约十个处理器周期内在线性固定点值和日志空间值之间进行转换。 分数指数和整数指数可以组合在一起成为对数域变量表示。 可以对组合变量作为整体执行对数域算术运算。 对数域数值的分数指数表示可以支持从小数指数到整数指数的自动位运算。 如果在日志域中计算的中间结果导致指数的小数部分超过1，则可能会发生位进位到指数的整数分量。 由于日志域组合变量中指数的整数和分数分量的联合放置，这种进位可能会自动发生。

公开(公告)号：US20070154078A1

公开(公告)日：2007-07-05

申请号：US11639593

申请日：2006-12-15

申请人： Chao He ,  Gary Ross

发明人： Chao He ,  Gary Ross

IPC分类号： G06K9/00

CPC分类号： G06K9/00 ,  G07D7/20

摘要： Automatic media item validation is typically problematic in the case of media items that are damaged or marked. A method of processing images of media items before automatic validation which addresses this problem is described. Aberrant image elements are identified, for example, using a bandpass filter. The aberrant image elements are replaced by neutral decision making data. This data is neutral with respect to a decision making process being a specified automatic media item validation process. For example, for each aberrant image element an estimated distribution is accessed for that image position across all images in a training set of images of media items. A value is selected from the estimated distribution on the basis of a significance level which is related to a significance level used by the automatic media item validation process. In this way media items which have tears, holes, marks or soiling may be successfully processed by an automated media item validator.

摘要翻译： 在损坏或标记的媒体项目的情况下，自动媒体项目验证通常是有问题的。 描述了在解决该问题的自动验证之前处理媒体项目的图像的方法。 识别异常图像元素，例如使用带通滤波器。 异常图像元素被中性决策数据所取代。 相对于作为指定的自动媒体项目验证过程的决策过程，该数据是中立的。 例如，对于每个异常图像元素，针对媒体项目的训练图像集合中的所有图像的该图像位置访问估计分布。 基于与自动媒体项目验证过程使用的显着性水平相关的显着性水平从估计分布中选择值。 以这种方式，可以通过自动媒体项目验证器成功地处理具有眼泪，孔，痕迹或污染物的媒体物品。

公开(公告)号：US10650232B2

公开(公告)日：2020-05-12

申请号：US13975479

申请日：2013-08-26

申请人： Chao He ,  Meng Yu ,  Richard C. Quipanes ,  Em Parac ,  Kristoffer Dominic Amora

发明人： Chao He ,  Meng Yu ,  Richard C. Quipanes ,  Em Parac ,  Kristoffer Dominic Amora

IPC分类号： G06T7/00 ,  G06K9/00 ,  G06K9/62 ,  G06K9/46

摘要： Approaches to produce verification are addressed which may be suitably employed in conjunction with a low resolution image scanner. Features, such as lines, corners, text, texture, edges and the like are extracted and compared with features for an identified item or evaluated to determine if the features collectively are indicative of a produce item or a non-produce item.

公开(公告)号：US09251642B2

公开(公告)日：2016-02-02

申请号：US12607579

申请日：2009-10-28

申请人： Chao He ,  Andrew Colley

发明人： Chao He ,  Andrew Colley

IPC分类号： A63F9/24 ,  G07F17/32

CPC分类号： G07F17/32 ,  G07F17/3223 ,  G07F17/3244 ,  G07F17/3255

摘要： A system and method of managing casino patron money balances which stores patron money balances in electronic form. The system includes an interrogator, and a self-service computer coupled to the interrogator for interrogating a wireless communicator associated with a casino patron to determine a money balance associated with the wireless communicator and for processing a selection by the casino patron to produce a change in the money balance.

摘要翻译： 管理以电子形式存储顾客货币余额的赌场顾客货币余额的系统和方法。 该系统包括询问器和耦合到询问器的自助服务计算机，用于询问与娱乐场顾客相关联的无线通信器以确定与无线通信器相关联的货币余额并且用于处理由娱乐场顾客进行的选择以产生变化 钱平衡。