公开(公告)号：US20050018775A1

公开(公告)日：2005-01-27

申请号：US10892897

申请日：2004-07-16

Applicant: Mk Subramanian ,  Sandeep Bhatia ,  Santosh Savekar ,  Gaurav Aggarwal ,  K. Shivapirakasan

Inventor： Mk Subramanian ,  Sandeep Bhatia ,  Santosh Savekar ,  Gaurav Aggarwal ,  K. Shivapirakasan

IPC: H04J3/00 ,  H04N7/12 ,  H04N7/173 ,  H04N7/62 ,  H04N11/02 ,  H04N11/04

CPC classification number: H04N21/44004 ,  H04N21/4307

Abstract: Described herein is a system and method for audio visual synchronization. The picture are displayed by receiving an identifier, said identifier associated with a frame buffer storing a picture; extracting a presentation time stamp associated with the picture, wherein the picture is associated with a time stamp; comparing a local time clock value to the presentation time stamp; determining that the picture is mature for presentation if the presentation time stamp exceeds the local time clock value by less than a first predetermined threshold; and determining that the picture is mature for presentation if the local time clock value exceeds the presentation time stamp by less than a second predetermined threshold.

Abstract translation: 这里描述了一种用于视听同步的系统和方法。 通过接收标识符显示图像，所述标识符与存储图像的帧缓冲器相关联; 提取与所述图片相关联的呈现时间戳，其中所述图片与时间戳相关联; 将本地时钟值与演示时间戳进行比较; 如果所述呈现时间戳超过所述本地时间时钟值小于第一预定阈值，则确定所述图片是成熟的; 以及如果所述本地时间时钟值超过所述呈现时间戳小于第二预定阈值，则确定所述图片是否成熟以进行呈现。

公开(公告)号：US06834344B1

公开(公告)日：2004-12-21

申请号：US09398203

申请日：1999-09-17

Applicant: Gaurav Aggarwal ,  Pradeep K. Dubey ,  Ashutosh Kulshreshtha ,  Marco Martens ,  Charles P. Tresser ,  Chai W. Wu

Inventor： Gaurav Aggarwal ,  Pradeep K. Dubey ,  Ashutosh Kulshreshtha ,  Marco Martens ,  Charles P. Tresser ,  Chai W. Wu

IPC: H04L900

CPC classification number: G06T1/005 ,  G06T1/0042 ,  H04N1/32144 ,  H04N1/32154 ,  H04N2201/327

Abstract: A method is presented for marking high-quality digital images with a robust and invisible watermark. It requires the mark to survive and remain detectable and authenticatable through all image manipulations that in themselves do not damage the image beyond useability. These manipulations include JPEG “lossy” compression and, in the extreme, the printing and rescanning of the image. The watermark also has the property that it can detect if the essential contents of the image has changed. The first phase of the method comprises extracting a digest or number N from the image so that N only (or mostly) depends on the essential information content, such that the same number N can be obtained from a scan of a high quality print of the image, from the compressed form of the image, or in general, from the image after minor modifications (introduced inadvertently by processing, noise etc.). The second phase comprises the marking. This can be done in form of an invisible robust watermark, or in form of some visible signature or watermark.

Abstract translation: 提出了一种用强大且不可见的水印标记高质量数字图像的方法。 它需要标记生存，并通过所有图像操作保持可检测和可认证，这本身不会损害图像超出可用性。 这些操作包括JPEG“有损”压缩，在极端情况下，打印和重新扫描图像。 该水印还具有可以检测图像的基本内容是否已改变的属性。 该方法的第一阶段包括从图像中提取摘要或数字N，使得仅N（或主要地）取决于基本信息内容，使得可以从扫描的高质量打印获得相同数量N 图像，从图像的压缩形式，或一般来说，从稍后修改的图像（通过处理，噪声等无意中引入）。 第二阶段包括标记。 这可以以不可见的鲁棒水印的形式或以一些可见的签名或水印的形式来完成。

公开(公告)号：US08995536B2

公开(公告)日：2015-03-31

申请号：US10892897

申请日：2004-07-16

Applicant: Mk Subramanian ,  Sandeep Bhatia ,  Santosh Savekar ,  Gaurav Aggarwal ,  K. Shivapirakasan

Inventor： Mk Subramanian ,  Sandeep Bhatia ,  Santosh Savekar ,  Gaurav Aggarwal ,  K. Shivapirakasan

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N21/44 ,  H04N21/43

CPC classification number: H04N21/44004 ,  H04N21/4307

Abstract: Described herein is a system and method for audio visual synchronization. The picture are displayed by receiving an identifier, said identifier associated with a frame buffer storing a picture; extracting a presentation time stamp associated with the picture, wherein the picture is associated with a time stamp; comparing a local time clock value to the presentation time stamp; determining that the picture is mature for presentation if the presentation time stamp exceeds the local time clock value by less than a first predetermined threshold; and determining that the picture is mature for presentation if the local time clock value exceeds the presentation time stamp by less than a second predetermined threshold.

Abstract translation: 这里描述了一种用于视听同步的系统和方法。 通过接收标识符显示图像，所述标识符与存储图像的帧缓冲器相关联; 提取与所述图片相关联的呈现时间戳，其中所述图片与时间戳相关联; 将本地时钟值与演示时间戳进行比较; 如果所述呈现时间戳超过所述本地时间时钟值小于第一预定阈值，则确定所述图片是成熟的; 以及如果所述本地时间时钟值超过所述呈现时间戳小于第二预定阈值，则确定所述图片是否成熟以进行呈现。

公开(公告)号：US08625861B2

公开(公告)日：2014-01-07

申请号：US12120936

申请日：2008-05-15

Applicant: Gaurav Aggarwal ,  Rudolf Maarten Bolle ,  Tsai-Yang Jea ,  Nalini Kanta Ratha

Inventor： Gaurav Aggarwal ,  Rudolf Maarten Bolle ,  Tsai-Yang Jea ,  Nalini Kanta Ratha

IPC: G06K9/00

CPC classification number: G06K9/00067 ,  G06K9/00073

Abstract: Techniques for generating a gradient characterization for a first fingerprint image are provided. One or more fingerprint feature points are selected from the first fingerprint image. A region is obtained for each of the one or more selected fingerprint feature points. The region is a representation of an area proximate a given fingerprint feature point. Each of the obtained regions is divided into a plurality of sub-regions. A histogram is generated for each of the plurality of sub-regions. For each of the one or more selected fingerprint feature points, the one or more generated histograms are combined into a concatenated histogram. The concatenated histogram is used for identification purposes.

Abstract translation: 提供了用于产生第一指纹图像的梯度表征的技术。 从第一指纹图像中选择一个或多个指纹特征点。 为一个或多个所选择的指纹特征点中的每一个获得区域。 该区域是靠近给定指纹特征点的区域的表示。 所获得的区域被分成多个子区域。 为多个子区域中的每个子区域生成直方图。 对于一个或多个所选择的指纹特征点中的每一个，将一个或多个生成的直方图组合成级联直方图。 串联直方图用于识别目的。

公开(公告)号：US20120322387A1

公开(公告)日：2012-12-20

申请号：US13524136

申请日：2012-06-15

Applicant: Angela Nicoara ,  Narendan Thiagarajan ,  Gaurav Aggarwal ,  Dan Boneh

Inventor： Angela Nicoara ,  Narendan Thiagarajan ,  Gaurav Aggarwal ,  Dan Boneh

IPC: H04B17/00

CPC classification number: H04M1/24 ,  H04M1/72561 ,  H04W52/0264 ,  Y02D70/00 ,  Y02D70/124 ,  Y02D70/142

Abstract: A system for measuring power consumption by a mobile device corresponding to access of web pages is provided. The system includes: the mobile device, configured to access web pages via a wireless network; a power measurement device connected to a battery of the mobile device, configured to measure parameters related to power consumption; and a server, in communication with the mobile device and the power measurement device, configured to control the mobile device's access of web pages and control the power measurement device's measurement of parameters, to receive measurements from the power measurement device, and to process the received measurements so as to correlate the mobile device's access of a web page with an amount of power consumed corresponding to the mobile device's access of the web page.

Abstract translation: 提供了一种用于测量与网页访问相对应的移动设备的功耗的系统。 该系统包括：移动设备，被配置为经由无线网络访问网页; 连接到移动设备的电池的功率测量设备，被配置为测量与功耗相关的参数; 以及与所述移动设备和所述功率测量设备通信的服务器，被配置为控制所述移动设备对网页的访问并且控制所述功率测量设备的参数测量，以从所述功率测量设备接收测量值，并且处理所接收的 测量，以便将移动设备对网页的访问与对应于移动设备访问网页的消耗量相关联。

公开(公告)号：US20090285459A1

公开(公告)日：2009-11-19

申请号：US12120936

申请日：2008-05-15

Applicant: Gaurav Aggarwal ,  Rudolf Maarten Bolle ,  Tsai-Yang Jea ,  Nalini Kanta Ratha

Inventor： Gaurav Aggarwal ,  Rudolf Maarten Bolle ,  Tsai-Yang Jea ,  Nalini Kanta Ratha

IPC: G06K9/00

CPC classification number: G06K9/00067 ,  G06K9/00073

Abstract: Techniques for generating a gradient characterization for a first fingerprint image are provided. One or more fingerprint feature points are selected from the first fingerprint image. A region is obtained for each of the one or more selected fingerprint feature points. The region is a representation of an area proximate a given fingerprint feature point. Each of the obtained regions is divided into a plurality of sub-regions. A histogram is generated for each of the plurality of sub-regions. For each of the one or more selected fingerprint feature points, the one or more generated histograms are combined into a concatenated histogram. The concatenated histogram is used for identification purposes.

Abstract translation: 提供了用于产生第一指纹图像的梯度表征的技术。 从第一指纹图像中选择一个或多个指纹特征点。 为一个或多个所选择的指纹特征点中的每一个获得区域。 该区域是靠近给定指纹特征点的区域的表示。 所获得的区域被分成多个子区域。 为多个子区域中的每个子区域生成直方图。 对于一个或多个所选择的指纹特征点中的每一个，将一个或多个生成的直方图组合成级联直方图。 串联直方图用于识别目的。

公开(公告)号：US07342967B2

公开(公告)日：2008-03-11

申请号：US10317642

申请日：2002-12-11

Applicant: Gaurav Aggarwal ,  Arun Gopalakrishna Rao ,  Marcus Kellerman ,  David Erickson ,  Jason Demas ,  Sandeep Bhatia ,  Girish Hulmani

Inventor： Gaurav Aggarwal ,  Arun Gopalakrishna Rao ,  Marcus Kellerman ,  David Erickson ,  Jason Demas ,  Sandeep Bhatia ,  Girish Hulmani

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04B1/66

CPC classification number: H04N21/4385 ,  G06T9/004 ,  H04N21/4147 ,  H04N21/4348 ,  H04N21/6587 ,  H04N21/8455

Abstract: A system, method, and apparatus for reducing the video decoder processing requirements for rewinding a HITS stream are presented herein. During rewind of a HITS stream, the video decoder builds a clean reference picture. The clean reference picture is built by decoding each of the P-pictures in the EP-EP segment. However, because the P-pictures are not displayed, the decoder does not decode the portion of the P-picture below the last intracoded slice. The decoder can build the clean reference picture without decoding the portions of the P-pictures below the last intracoded slice because the subsequent pictures do not use the said portions for prediction.

Abstract translation: 本文给出了一种用于降低用于重绕HITS流的视频解码器处理要求的系统，方法和装置。 在HITS流的倒带期间，视频解码器构建干净的参考图片。 通过对EP-EP段中的每个P图像进行解码来构建干净的参考图像。 然而，由于不显示P图像，所以解码器不会在最后一个内部编码的切片之下对P图像的部分进行解码。 解码器可以构建干净的参考图像而不对最后一个内部编码的切片之下的P图像的部分进行解码，因为后续图像不使用所述部分进行预测。

公开(公告)号：US07149248B2

公开(公告)日：2006-12-12

申请号：US10317389

申请日：2002-12-11

Applicant: Gaurav Aggarwal ,  Arun Gopalakrishna Rao ,  Marcus Kellerman ,  David Erickson ,  Jason Demas ,  Sandeep Bhatia ,  Girish Hulmani

Inventor： Gaurav Aggarwal ,  Arun Gopalakrishna Rao ,  Marcus Kellerman ,  David Erickson ,  Jason Demas ,  Sandeep Bhatia ,  Girish Hulmani

IPC: H04N7/18

CPC classification number: H04N21/8455 ,  G06T9/004 ,  H04N5/775 ,  H04N5/781 ,  H04N5/83 ,  H04N9/8042 ,  H04N9/8063 ,  H04N19/107 ,  H04N19/159 ,  H04N19/172 ,  H04N19/44 ,  H04N19/61 ,  H04N21/4147 ,  H04N21/42623 ,  H04N21/42661 ,  H04N21/4334 ,  H04N21/4348 ,  H04N21/4385 ,  H04N21/4402 ,  H04N21/6587

Abstract: A system, method, and apparatus for reducing the video decoder processing requirements are presented herein. During a rewind operation, a reference picture for a group of pictures is decoded and stored into a reference frame buffer. By storing a reference picture for the group, the reference picture need not be decoded to display each picture in the group during the rewind operation.

公开(公告)号：US20060023785A1

公开(公告)日：2006-02-02

申请号：US10909151

申请日：2004-07-30

Applicant: Gaurav Aggarwal ,  Rajendra Khare

Inventor： Gaurav Aggarwal ,  Rajendra Khare

IPC: H04N11/02

CPC classification number: H04N19/433 ,  H04N5/145 ,  H04N19/51 ,  H04N19/61

Abstract: Presented herein are Tertiary Content Addressable Memory based motion estimator(s). In one embodiment, there is presented a method for encoding a picture. The method comprises storing a reference picture in a memory; taking samples from at least one line of a prediction block, wherein each of the samples comprises a plurality of bits, the plurality of bits comprising most significant bits and least significant bits; concatenating the samples; replacing the least significant bits of the samples with “don't cares”, thereby generating at least one data word; addressing the memory with the at least one data word; receiving one or more addresses, said one or more addresses associated with one or more blocks; replacing a portion of the “don't cares” with a portion of the least significant bits of the samples, thereby generating another one or more data words; and addressing the memory with the another one or more data words.

Abstract translation: 这里提出的是基于第三纪内容可寻址存储器的运动估计器。 在一个实施例中，提出了一种用于对图像进行编码的方法。 该方法包括将参考图像存储在存储器中; 从预测块的至少一行获取样本，其中每个样本包括多个比特，所述多个比特包括最高有效比特和最低有效比特; 连接样品; 用“不关心”替换样本的最低有效位，从而生成至少一个数据字; 用所述至少一个数据字寻址所述存储器; 接收一个或多个地址，所述一个或多个地址与一个或多个块相关联; 用样本的最低有效位的一部分替换“不关心”的一部分，从而生成另一个或多个数据字; 并用另一个或多个数据字寻址存储器。

公开(公告)号：US06728706B2

公开(公告)日：2004-04-27

申请号：US09815614

申请日：2001-03-23

Applicant: Gaurav Aggarwal ,  Sugata Ghosal

Inventor： Gaurav Aggarwal ,  Sugata Ghosal

IPC: G06F1730

CPC classification number: G06Q30/02 ,  Y10S707/99935

Abstract: Searching online catalog databases by shoppers is improved by performing similarity searching on searches performed by the shopper, in conjunction with adjusting the similarity metric used during the search to interactively improve the relevance of the resulting search results to the shopper. This involves using relevance feedback and/or product redefinition to learn the “implied concept” of the shopper's stated product requirements; that is, the quality of the search results is enhanced through understanding the concept implied by the shopper's queries by, for example, learning from the product results marked as “relevant” or “irrelevant” by the shopper. This approach is in contrast with attempts to enhance search results using, for example, the shopper's past orders or previous actions, or the past orders or previous actions of other shoppers who may have a purchase history similar to that of the current shopper.

Abstract translation: 通过对购物者执行的搜索执行相似性搜索，结合调整搜索期间使用的相似性度量来交互地提高所得到的搜索结果与购物者的相关性，从而改善了购物者对在线目录数据库的搜索。 这涉及使用相关性反馈和/或产品重新定义来了解购物者声明的产品要求的“隐含概念”; 也就是说，通过了解购物者查询所隐含的概念，例如从购物者标识为“相关”或“无关”的产品结果中学习，可以提高搜索结果的质量。 这种方法与使用例如购物者的过去订单或先前操作或其他可能具有与当前购物者的购买历史相似的购买历史的其他购物者的过去订单或之前的动作来增强搜索结果形成对比。