Patents by Inventor Miroslav Trajkovic

Miroslav Trajkovic has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Expression invariant face recognition
    Publication number: 20060110014
    Abstract: An identification and/or verification system which has improved accuracy when the expression on the face of the captured image is different than the expression on the face of the stored image. One or more images of a person are captured. The expressive facial features of the captured image are located. The system then compares the expressive facial features to the expressive facial features of the stored image. If there is no match then the locations of the non-matching expressive facial feature in the captured image are stored. These locations are then removed from the overall comparison between the captured image and the stored image. Removing these locations from the subsequent comparison of the entire image reduces false negatives that result from a difference in the facial expressions of the captured image and a matching stored image.
    Type: Application
    Filed: December 10, 2003
    Publication date: May 25, 2006
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Vasanth Philomin, Srinivas Guita, Miroslav Trajkovic
  • Avatar database for mobile video communications
    Publication number: 20060079325
    Abstract: A method and system for avatar mobile video communications are disclosed. Since the creation and realistic driving of avatars may not be done fully automatically with in a mobile communication device (e.g., a cellular phone), an avatar database is provided along with realistic driving mechanisms. Mobile callers may select appropriate downloadable avatars for using during a mobile video communication. The avatar database is provided as a global resource for the mobile video commutation system.
    Type: Application
    Filed: December 4, 2003
    Publication date: April 13, 2006
    Applicant: Koninklijke Philips Electronics, N.V.
    Inventors: Miroslav Trajkovic, Yun-Ting Lin, Philomin Vasanth
  • Head motion estimation from four feature points
    Patent number: 7027618
    Abstract: Linear method for performing head motion estimation from facial feature data, the method comprising the steps of: obtaining first facial image and detecting a head in the first image; detecting position of four points P of said first facial image where P={p1, p2, p3, p4}, and pk=(xk, yk); obtaining second facial image and detecting a head in the second image; detecting position of four points P? of the second facial image where P?={p?1, p?2, p?3, p?4} and p?k=(x?k, y?k); and, determining the motion of the head represented by a rotation matrix R and translation vector T using the points P and P?. The head motion estimation is governed according to an equation: P?i=RPi+T, where R = [ r 1 T r 2 T r 3 T ] = [ r ij ] 3 × 3 and T=[T1 T2 T3]T represents camera rotation and translation respectively.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: April 11, 2006
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Miroslav Trajkovic, Vasanth Philomin, Srinivas Gutta
  • Method and system for automatically controlling a personalized networked environment
    Publication number: 20060072791
    Abstract: Using known methods of face recognition, appliances can be automatically initiated and/or adjusted as a user enters an environment, such as a home or a room. The environment is networked such that there is a communication link between a camera monitoring the entrance to the environment, a face recognition system, and the appliances. The method of automatically controlling a networked environment includes capturing a face image of an individual, storing the face image (i.e., in a memory), and associating at least one appliance setup to the face image. The method also includes comparing the face image to stored face images, retrieving the at least one appliance setup for a matched face image, and initiating the at least one appliance setup. An appliance setup controls turning on or off an appliance, such as an illumination source, a television, or a stereo.
    Type: Application
    Filed: March 30, 2001
    Publication date: April 6, 2006
    Inventors: Srinivas Gutta, Miroslav Trajkovic, Antonio Colmenarez
  • System and method for aiming an optical code scanning device
    Publication number: 20060043191
    Abstract: A system and method are provided for performing a read operation including acquiring a series of frames of image data; processing a first frame of image data including an array of pixel data acquired while an aiming pattern was generated for determining a location L of at least one pixel of the array of pixel data that corresponds to the aiming pattern; and processing a second frame of image data acquired while the aiming pattern was not generated. The processing of the second frame of image data includes the steps of selecting at least one optical code acquired in the second frame of image data that is located at a respective location; wherein the respective location meets a predetermined condition relative to the determined location L; and providing the selected at least one optical code for further processing in accordance with the read operation.
    Type: Application
    Filed: August 31, 2004
    Publication date: March 2, 2006
    Inventors: Mehul Patel, Christopher Brock, Miroslav Trajkovic, Edward Hatlon, William Sackett
  • Electro-optically reading direct part markings on workpieces by image capture
    Publication number: 20060043187
    Abstract: Performance of an imaging reader for electro-optically reading direct part markings on workpieces is enhanced by ensuring that such markings are read in the vicinity of an ideal, focused, target plane, and by enhancing the contrast of such markings. Calibration and self-calibration of the reader improve performance.
    Type: Application
    Filed: August 27, 2004
    Publication date: March 2, 2006
    Inventors: Duanfeng He, Miroslav Trajkovic
  • Video monitoring and surveillance systems capable of handling asynchronously multiplexed video
    Patent number: 6999613
    Abstract: Aspects of the present invention can be configured to demultiplex an asynchronously multiplexed video signal, which comprises images from a number of different cameras. Image matching techniques are used to assign input images with states. After a period, the number of states will generally equal the number of input cameras. The states may be modeled through any number of techniques, such as histogram analysis, clustering, and hidden Markov model analysis. Input images are assigned to states, and the input images are output as being associated with the states. Zone surveillance may be performed on a series of images from one or more of the states. Any events that occur can be distinguished and reported.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: February 14, 2006
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Antonio J. Colmenarez, Srinivas Gutta, Miroslav Trajkovic
  • Method and apparatus for correcting a head pose in a video phone image
    Publication number: 20060017804
    Abstract: An image processing system (250) and method (300) are disclosed for correcting a head pose in a video phone image, so that a frontal view is presented on a display. A disclosed head pose corrector (250) estimates the orientation of a head pose and adjusts the orientation of the head pose, if necessary, to present a frontal view. The orientation of the head pose is adjusted by generating a three dimensional model of the face surface and adjusting the orientation of the three dimensional face model to provide the desired frontal view. The head pose corrector (250) may be included in a video phone (100) to correct the head pose of transmitted or received images (or both) or may be included in a server on a network to automatically adjust the head shots of one or more participants to a video phone communication.
    Type: Application
    Filed: December 8, 2003
    Publication date: January 26, 2006
    Inventors: Mi-Suen Lee, Yun- Ting Lin, Miroslav Trajkovic, Vasanth Philomin
  • Computer vision system and method employing illumination invariant neural networks
    Publication number: 20060013475
    Abstract: Objects are classified using a normalized cross correlation (NCC) measure to compare two images acquired under non-uniform illumination conditions. An input pattern is classified to assign a tentative classification label and value. The input pattern is assigned to an output node in the radial basis function network having the largest classification value. If the input pattern and an image associated with the node, referred to as a node image, both have uniform illumination, then the node image is accepted and the probability is set above a user specified threshold. If the test image or the node image are not uniform, then the node image is not accepted and the classification value is kept as the value assigned by the classifier. If both the test image and the node image are not uniform, then an NCC measure is used and the classification value is set as the NCC value.
    Type: Application
    Filed: December 8, 2003
    Publication date: January 19, 2006
    Inventors: Vasanth Philomin, Srinivas Gutta, Miroslav Trajkovic
  • Object classification via time-varying information inherent in imagery
    Publication number: 20050259865
    Abstract: A method for classifying objects in a scene, is provided. The method including: capturing video data of the scene; locating at least one object in a sequence of video frames of the video data; inputting the at least one located object in the sequence of video frames into a time-delay neural network; and classifying the at least one object based on the results of the time-delay neural network.
    Type: Application
    Filed: November 15, 2002
    Publication date: November 24, 2005
    Inventors: Srinivas Gutta, Vasanth Philomin, Miroslav Trajkovic
  • Automatic system for monitoring person requiring care and his/her caretaker
    Patent number: 6968294
    Abstract: A monitoring system for an infant, child, invalid, or other person requiring care uses computer vision and hearing, and inputs of other modalities, to analyze the status of a caretaker and/or cared-for person and its environment. The conditions are classified as normal or alarm conditions and an informative alarm signal is generated which may include records of the vision audio and other inputs. The system also has the ability to solicit responses from the occupants to stimulate a classifiable input to reduce ambiguity in its state signal.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: November 22, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Srinivas Gutta, Eric Cohen-Solal, Miroslav Trajkovic
  • N-view synthesis from monocular video of certain broadcast and stored mass media content
    Patent number: 6965379
    Abstract: A monocular input image is transformed to give it an enhanced three dimensional appearance by creating at least two output images. Foreground and background objects are segmented in the input image and transformed differently from each other, so that the foreground objects appear to stand out from the background. Given a sequence of input images, the foreground objects will appear to move differently from the background objects in the output images.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: November 15, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Mi-Suen Lee, Tomas Brodsky, Daphna Weinshall, Miroslav Trajkovic
  • Remote camera control device
    Patent number: 6965394
    Abstract: A camera system comprising a camera, a monitor, an image detector, a touch screen, and a remote control. The monitor displays a field of view of a lens of the camera. The image detector provides a viewer image to the remote control whereby the remote control can determine a desired image within the field of view that the viewer is gazing upon. The touch screen enables a viewer of the monitor to point to the desired image of the field of view and provides signal(s) indicative of the pointing. The remote control is operable to activate various drives to pan and/or tilt the camera, or to zoom and/or focus the lens to the desired image and to follow any movement of the image within the field of view.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: November 15, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Srinivas Gutta, Miroslav Trajkovic, Antonio Colmenarez
  • Self-organizing feature map with improved performance by non-monotonic variation of the learning rate
    Patent number: 6965885
    Abstract: The learning rate used for updating the weights of a self-ordering feature map is determined by a process that injects some type of perturbation into the value so that it is not simply monotonically decreased with each training epoch. For example, the learning rate may be generated according to a pseudorandom process. The result is faster convergence of the synaptic weights.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: November 15, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Srinivas Gutta, Vasanth Philomin, Miroslav Trajkovic
  • Method and apparatus for automatic face blurring
    Patent number: 6959099
    Abstract: An image processing system is disclosed that provides automatic face or skin blurring for images. All faces or skin can be blurred, or specific faces can be blurred. In one aspect of the invention, a particular face is blurred on an image or on a series of images in a video. Faces are determined in an image, and face matching is performed to match a particular face to faces in the image. If a match is found, the face or a portion of the face is blurred in the image. The blurring is performed on a portion of the image containing the particular face. Blurring may be performed through a variety of techniques. In another aspect of the invention, voice processing is used as an adjunct to or in place of face analysis to determine if a face in an image or series of images should be blurred. In another aspect of the invention, all faces or human skin in an image or series of images is blurred.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: October 25, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Srinivas Gutta, Miroslav Trajkovic, Antonio J. Colmenarez, Vasanth Philomin
  • Method and apparatus for controlling lighting based on user behavior
    Patent number: 6933685
    Abstract: A lighting controller is disclosed that automatically adjusts a lighting device based on user activity. The disclosed lighting controller processes at least one of audio and video information to identify predefined user events that suggest that a lighting device should be activated or adjusted. In one implementation, a number of behavior rules define various user activities or events that suggest that the user would like to activate or adjust a lighting device. Each rule contains one or more conditions, and, optionally, a corresponding action-item that should be performed when the rule is satisfied to activate or adjust the lighting device. Upon detection of a predefined event, the corresponding action, if any, is performed by the lighting controller.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: August 23, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Srinivas Gutta, Antonio J. Colmenarez, Miroslav Trajkovic
  • Mood based virtual photo album
    Patent number: 6931147
    Abstract: A method and system for providing a mood based virtual photo album which provides photos based upon a sensed mood the viewer. The method may include the steps of capturing a first image of a facial expression of a viewer by a camera, providing the image to a pattern recognition module of a processor, determine a mood of the viewer by comparing the facial expression with a plurality of previously stored images of facial expressions having an associated emotional identifier that indicates a mood of each of the plurality of previously stored images, retrieving a set of photos from storage for transmission to the viewer based on the emotional identifier associated with the determined mood, and transmitting the set of photos in the form of an electronic photo album.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: August 16, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Antonio Colmenarez, Miroslav Trajkovic, Srinivas Gutta
  • Method and apparatus for providing search results in response to an information search request
    Patent number: 6910037
    Abstract: A system and method is disclosed for taking the results of a search (i.e., electronic documents) using the TFIDF of terms contained in those search result documents to quantify how related the search result documents are to one another, and organizing the search results based on those qualified relations. Using such a system and method, the search result documents can be displayed in such a manner that the relationships between the search result documents is evident to the viewer.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: June 21, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Srinivas Gutta, Vasanth Philomin, Miroslav Trajkovic
  • Palette-based histogram matching with recursive histogram vector generation
    Patent number: 6865295
    Abstract: A histogram comparison process is provided that compares a histogram-vector of a first dataset to a corresponding histogram-vector of a second dataset. The histogram-vectors of the first and second datasets are formed from the histogram values of a select few of the histogram classes, the select few classes being the classes of the first dataset that contain the highest frequency count. The second dataset is characterized using only the select few classes of the first dataset; data items with values that belong to other classes are ignored. A palette dataset is created, corresponding to the second dataset, wherein the data items in the third dataset correspond to indexes to the select classes of the first dataset, or null indexes for the ignored data items. The histograms corresponding to overlapping regions is determined recursively, based on the third dataset.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: March 8, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Miroslav Trajkovic
  • Adaptive alarm system
    Patent number: 6838994
    Abstract: This invention provides an alarm system and method for adjusting the wake-up signals. The system includes a means for tracking the behavior of a person in a predetermined area under surveillance after the activation of an alarm clock, and a means for determining whether the person is motionless for a predetermined time period. Upon recognition that the observed behavior indicates the person is still sleeping, the wake-up signals are gradually increased. At the same time, the electrical power supplied to a plurality of electronic devices may be increased to assist the person to wake up.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: January 4, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Srinivas Gutta, Miroslav Trajkovic, Antonio J Colmenarez