公开(公告)号：WO2004079657A3

公开(公告)日：2005-02-10

申请号：PCT/EP2004050219

申请日：2004-02-27

Applicant: MOTOROLA INC ,  HOBSON PAOLA MARCELLA ,  KADIR TIMOR ,  BRADY JOHN MICHAEL

Inventor： HOBSON PAOLA MARCELLA ,  KADIR TIMOR ,  BRADY JOHN MICHAEL

IPC: G06T5/00 ,  G06T7/00 ,  G06T9/20 ,  H04N7/26

CPC classification number: G06T7/149 ,  G06T7/12 ,  G06T7/194 ,  G06T2207/10016 ,  G06T2207/20161

Abstract: A method (500) for segmenting an image comprises the step of identifying (502) one or more regions in the image. The method further comprises the steps of applying a single embedded surface for a Level Sets representation of said image; and performing region control logic (504) to enable said Level Sets, reresentation to manipulate one or more region boundaries in order to segment said image. This provides a method by which unsupervised image segmentation can be performed on an arbitrary number of classes/objects in the image.

Abstract translation: 用于分割图像的方法（500）包括识别（502）图像中的一个或多个区域的步骤。 该方法还包括以下步骤：对所述图像的水平集表示应用单个嵌入表面; 以及执行区域控制逻辑（504）以启用所述水平集，再现以操纵一个或多个区域边界以便分割所述图像。 这提供了一种可以对图像中任意数量的类/对象执行无监督图像分割的方法。

公开(公告)号：WO03001724A3

公开(公告)日：2003-08-28

申请号：PCT/EP0207004

申请日：2002-06-21

Applicant: MOTOROLA INC ,  HUGHES JOHN ,  BRUNT STEPHEN MARK ,  KADIR TIMOR

Inventor： HUGHES JOHN ,  BRUNT STEPHEN MARK ,  KADIR TIMOR

IPC: H04L1/00 ,  H04L1/18

CPC classification number: H04L1/1809 ,  H04L2001/0092

Abstract: A proxy server (136) for a multimedia communication system (100), includes a receiver (240) receiving a multiplexed information stream transmitted from a source communication unit (402, 406) to a destination communication unit (406, 402); and a processor for de-multiplexing the received multiplexed information stream and extracting non-real-time data from the multiplexed information stream. The proxy server (136) further includes error detection means, operbly coupled to a transmitter and a memory element, for determining whether an error exists in the extracted non-real-time data. if an error is detected, then a non-real-time data re-transmission request is transmitted to the source communication unit. If an error is not detected then a copy of the extracted non-real-time data is stored in said memory element. A method (400, 500) for delivering a muliplexed information stream, a communication system and a storage medium are also provided. The multiplexed packed is forwarded immediately to the receiving node as well as being processed to see if there are any errors in the non-real time streams. This ensures non-real-time multiplexed multimedia streams are communicated with minimum delay in an end-to end communication link.

Abstract translation: 一种用于多媒体通信系统（100）的代理服务器（136），包括：接收器（240），接收从源通信单元（402,406）发送到目的地通信单元（406,402）的多路复用信息流; 以及处理器，用于解复用所接收的复用信息流并从复用信息流中提取非实时数据。 代理服务器（136）还包括错误检测装置，其可操作地耦合到发射机和存储器元件，用于确定提取的非实时数据中是否存在错误。 如果检测到错误，则将非实时数据重传请求发送到源通信单元。 如果未检测到错误，则将所提取的非实时数据的副本存储在所述存储器元件中。 还提供了用于传递复合信息流的方法（400,500），通信系统和存储介质。 复用打包立即转发到接收节点，并进行处理以查看非实时流中是否有错误。 这确保非实时多路复用多媒体流在端对端通信链路中以最小延迟进行通信。

公开(公告)号：WO0231766A3

公开(公告)日：2003-09-12

申请号：PCT/EP0111715

申请日：2001-10-09

Applicant: MOTOROLA INC ,  KADIR TIMOR ,  HOBSON PAOLA MARCELLA ,  UNIV OXFORD

Inventor： KADIR TIMOR ,  HOBSON PAOLA MARCELLA

IPC: G06T7/00 ,  G06K9/32 ,  G06T5/00 ,  H04N7/26 ,  G06T9/00

CPC classification number: G06K9/3233 ,  G06K9/4647 ,  G06K9/4671 ,  G06T7/143 ,  G06T2207/20132 ,  H04N19/00 ,  H04N19/17

Abstract: A method and apparatus for ranking pixels in an image by degrees of saliency, including: defining (200, 210) a plurality of regions for each of a plurality of pixels in an image, where each of the regions for any one of the pixels at coordinates (x,y) has a different scale s, calculating (230) an thropy value for each of the regions, identifying (260) any of the regions as having a peak entropy value, wighting (270) the peak entropy value of each of the peak entropy regions by a weight value corresponding to a peak width esimate of the peak entropy value, and randking (290) the regions by the weighted peak entropy values, thereby ranking the pixels.The invention can be included in a method and apparatus for image transmission, providing preferential transmission of salient portions of the image. This is particularly advantageous in image transmission over radio links of limited bandwith.

Abstract translation: 一种用于根据显着度来对图像中的像素进行排序的方法和装置，包括：为图像中的多个像素中的每一个定义（200,210）多个区域，其中， 坐标（x，y）具有不同的刻度s，计算（230）每个区域的熵值，识别（260）任何一个区域具有峰值熵值，指示（270）每个区域的峰值熵值 峰值熵区域的重量值与峰值熵值的峰值深度对应，并且通过加权的峰值熵值来区分（290）该区域，从而对像素进行排序。本发明可以包括在方法和装置中 用于图像传输，提供图像的显着部分的优先传输。 这在有限带宽的无线电链路上的图像传输中是特别有利的。

公开(公告)号：GB2399245A

公开(公告)日：2004-09-08

申请号：GB0304785

申请日：2003-03-03

Applicant: MOTOROLA INC

Inventor： HOBSON PAOLA MARCELLA ,  KADIR TIMOR ,  BRADY JOHN MICHAEL

IPC: G06T5/00 ,  G06T7/00 ,  G06T9/20 ,  H04N7/26

Abstract: A method (500) for segmenting an image comprises the step of identifying (502) one or more regions in the image, by applying a single embedded surface for a Level Sets representation of said image, and performing region control logic (504) to enable said Level Sets representation to manipulate one or more region boundaries in order to segment said image. This provides a method by which unsupervised image segmentation can be performed on an arbitrary number of classes/objects in the image.

公开(公告)号：GB2367966B

公开(公告)日：2003-01-15

申请号：GB0024669

申请日：2000-10-09

Applicant: MOTOROLA INC

Inventor： KADIR TIMOR ,  HOBSON PAOLA MARCELLA

IPC: G06T7/00 ,  G06K9/32 ,  G06T5/00 ,  H04N7/26 ,  G06T1/00

Abstract: A method and apparatus for ranking pixels in an image by degrees of saliency, including: defining ( 200, 210 ) a plurality of regions for each of a plurality of pixels in an image, where each of the regions for any one of the pixels at coordinates (x,y) has a different scale s, calculating ( 230 ) an entropy value for each of the regions, identifying ( 260 ) any of the regions as having a peak entropy value, weighting ( 270 ) the peak entropy value of each of the peak entropy regions by a weight value corresponding to a peak width estimate of the peak entropy value, and ranking ( 290 ) the regions by the weighted peak entropy values, thereby ranking the pixels. The invention can be included in a method and apparatus for image transmission, providing preferential transmission of salient portions of the image.

公开(公告)号：DE60132029D1

公开(公告)日：2008-01-31

申请号：DE60132029

申请日：2001-08-22

Applicant: MOTOROLA INC

Inventor： HOBSON PAOLA MARCELLA ,  MCKOEN KEVIN MICHAEL ,  KADIR TIMOR

IPC: H04B1/16 ,  H04L12/56 ,  H04M1/73 ,  H04N7/14 ,  H04N7/24 ,  H04N7/26 ,  H04W52/02

公开(公告)号：AT381859T

公开(公告)日：2008-01-15

申请号：AT04105749

申请日：2001-08-22

Applicant: MOTOROLA INC

Inventor： HOBSON PAOLA MARCELLA ,  MCKOEN KEVIN MICHAEL ,  KADIR TIMOR

IPC: H04B1/16 ,  H04L12/56 ,  H04M1/73 ,  H04N7/14 ,  H04N7/24 ,  H04N7/26 ,  H04W52/02

公开(公告)号：GB2367966A

公开(公告)日：2002-04-17

申请号：GB0024669

申请日：2000-10-09

Applicant: MOTOROLA INC

Inventor： KADIR TIMOR ,  HOBSON PAOLA MARCELLA

IPC: G06T7/00 ,  G06K9/32 ,  G06T5/00 ,  H04N7/26 ,  G06T1/00

Abstract: A method and apparatus for ranking pixels in an image by degrees of saliency, including: defining (200, 210) a plurality of regions for each of a plurality of pixels in an image, where each of the regions for any one of the pixels at coordinates ( x,y ) has a different scale s , calculating (230) an entropy value for each of the regions, identifying (260) any of the regions as having a peak entropy value, weighting (270) the peak entropy value of each of the peak entropy regions by a weight value corresponding to a peak width estimate of the peak entropy value, and ranking (290) the regions by the weighted peak entropy values, thereby ranking the pixels. The calculating step may comprise calculating a probability density function estimate using either a Parzen window PDF estimator or histogram binning. The invention can be included in a method and apparatus for image transmission, providing preferential transmission of salient portions of the image. This is particularly advantageous in image transmission over radio links of limited bandwidth.

公开(公告)号：DE60132029T2

公开(公告)日：2008-12-04

申请号：DE60132029

申请日：2001-08-22

Applicant: MOTOROLA INC

Inventor： HOBSON PAOLA MARCELLA ,  MCKOEN KEVIN MICHAEL ,  KADIR TIMOR

IPC: H04B1/16 ,  H04L12/56 ,  H04M1/73 ,  H04N7/14 ,  H04N7/24 ,  H04N7/26 ,  H04W52/02

公开(公告)号：GB2393062B

公开(公告)日：2005-01-05

申请号：GB0221175

申请日：2002-09-13

Applicant: MOTOROLA INC ,  UNIV OXFORD

Inventor： HOBSON PAOLA MARCELLA ,  KADIR TIMOR ,  BRADY JOHN MICHAEL

IPC: G06K9/46 ,  G06K9/64 ,  G06T5/00 ,  G06T7/40

Abstract: A method (400) for identifying a feature in an image includes the steps of defining (410) a plurality of saliency values of an image or set of images over multiple parameters and calculating (414) an entropy value for each of the saliency values over substantially each of the multiple parameters. One or more peak entropy values are determined (430, 432) for the image or set of images based on the calculated entropy values. A feature of the image or set of images is identified (454), based on the weighted peak entropy value. An image transmission device, image transmission unit and image transmission system are also described. This provides a method and apparatus for extending scale definition to multiple parameters, thereby generalising the structures that can be identified, for example, to identify anisotropic regions.