Patents Examined by Chris Kelley
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Patent number: 6791601Abstract: A multi-function image capture unit for use in an endoscopic camera system is provided. The image capture unit includes a touch-screen LCD display for generating a graphical user interface and for receiving associated user inputs. The image capture unit is configured to be coupled to an endoscopic camera, an external monitor, and a network. The image capture unit receives live video generated by the endoscopic camera, displays the video on the external monitor and the LCD display, and stores the live video within the image capture unit. Prior to recording, the video is buffered and compressed. The image capture unit can also store the live video in a remote computer system via the network. The image capture unit can also capture and store still images based on the live video as well as store the still images in the remote computer system. “One-touch” network login and storage allows these operations to be performed in response to a single touch by the user.Type: GrantFiled: November 11, 1999Date of Patent: September 14, 2004Assignee: Stryker CorporationInventors: William H. L. Chang, Salmaan Hameed, Amit A. Mahadik, Kiran A. Javadekar, Oretho F. Abello
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Patent number: 6788333Abstract: A system and process for generating a panoramic video. Essentially, the panoramic video is created by first acquiring multiple videos of the scene being depicted. Preferably, these videos collectively depict a full 360 degree view of the surrounding scene and are captured using a multiple camera rig. The acquisition phase also includes a calibration procedure that provides information about the camera rig used to capture the videos that is used in the next phase for creating the panoramic video. This next phase, which is referred to as the authoring phase, involves mosaicing or stitching individual frames of the videos, which were captured at approximately the same moment in time, to form each frame of the panoramic video. A series of texture maps are then constructed for each frame of the panoramic video. Each texture map coincides with a portion of a prescribed environment model of the scene.Type: GrantFiled: July 7, 2000Date of Patent: September 7, 2004Assignee: Microsoft CorporationInventors: Matthew T. Uyttendaele, Richard S. Szeliski
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Patent number: 6788741Abstract: A high-speed motion retrieval device is provided that certainly unerring motion vector at high speed. The first-stage motion retrieval means 12 retrieves a retrieval range determined by referring to the retrieval result in the previous frame. If a minimum predictive error is smaller than a threshold value, the motion retrieval process is ended at the time the retrieval range has been retrieved. If the minimum predictive error is larger than the threshold value, the second-stage motion retrieval means 13 retrieves the region which has not been retrieved through the first-stage motion retrieval within a predetermined retrieval range, thus obtaining the location with a minimum predictive error. Thus, the retrieval is divided into two steps. Motion vectors can be retrieved with small error detection and at high speed by suitably changing the first-stage retrieval range.Type: GrantFiled: October 18, 2000Date of Patent: September 7, 2004Assignee: NEC CorporationInventor: Hiroyuki Ishikawa
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Patent number: 6784918Abstract: A system and method of determining an operating state of a consumer electronic device allows a computer to control the consumer electronic device without user input. The system includes an image detection device for obtaining in image of the consumer electronic device. The image detection device can be a camera, or other sensor such as a photocell(s). A processor, or personal computer, is coupled to the image detection device for extracting information from a consumer electronic device display image. The processor generates control instructions for the consumer electronic device, and provides the control instructions to an infrared transmitter for transmitting the control instructions to the consumer electronic device.Type: GrantFiled: December 22, 1998Date of Patent: August 31, 2004Assignee: Intel CorporationInventor: Jonathan G. Ritchie
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Patent number: 6785331Abstract: Video data predictive encoding methods using the two kinds of prediction modes, the global and local motion compensation modes, are provided, by which unnecessary MCSEL is reduced as much as possible, and the data compression efficiency is improved. In the encoder, after a code word MCBPC indicating the macroblock type and presence/absence of the DCT coefficient of each of two blocks for sending color-difference signals, a code word MCSEL indicating which motion-compensating mode, global or local, was adopted for the prediction of the current macroblock is output if the macroblock was not intraframe-encoded.Type: GrantFiled: July 28, 1999Date of Patent: August 31, 2004Assignee: Nippon Telegraph and Telephone CorporationInventors: Hirohisa Jozawa, Atsushi Shimizu, Kazuto Kamikura, Hiroshi Watanabe
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Patent number: 6785465Abstract: The disk apparatus and the audiovisual data processing apparatus in accordance with the present invention are apparatuses having a stream data processing function and virtually provided with each command processing function for digital VCRs so as to be capable of meeting various processing requests from external apparatuses; and they are configured so that the audiovisual frame boundaries of audiovisual data are detected, so that audiovisual data received externally and continuously is divided in audiovisual frame units in accordance with the detected audiovisual frame boundaries, and so that the data divided in audiovisual frame units is controlled so as to be stored on a disk medium.Type: GrantFiled: May 4, 2000Date of Patent: August 31, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Toshiharu Koshino, Toshiki Yamamura, Yuji Nagaishi, Tsukasa Yoshiura, Yasushi Ayaki
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Patent number: 6785338Abstract: Compression-related information is used to constrain the selection and control of video imagery and content used to produce one or more uncompressed video streams for subsequent compression processing. Rather than taking an uncompressed video stream “as is” for compression processing, characteristics of compression processing are taken into consideration during the video production stage when the uncompressed video stream is generated. Different types of constraints include “intra-frame” constraints that constrain video content within a frame of a video stream, “inter-frame” constraints that constrain video content from frame to frame within a video stream, and “inter-stream” constraints that constrain video content across different video streams. Two or more different constraints and two or more different types of constraints may be applied simultaneously. The compression-related information may be “static” (e.g.Type: GrantFiled: January 18, 2000Date of Patent: August 31, 2004Assignee: Sarnoff CorporationInventors: Glenn Arthur Reitmeier, Robert Norman Hurst, Jr., Terrence Raymond Smith
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Patent number: 6785334Abstract: In a Fine Granular Video encoding system, a method for determining the number of transmission bits of SNR encoded and temporally encoded video data within a frame to balance image quality and object motion is presented. In accordance with the principles of the invention, a number of transmission bits at a known bit-rate for a quality enhanced video frame and a temporal enhanced video frame is determined to balance image quality and object motion smoothness. In one aspect of the invention, the number of bits transmitted in each frame is determined by comparing a ratio of a measure of video encoded information within the quality enhanced video frame and a measure of video encode information within the quality enhanced video frame and the temporally enhanced video frame to a known threshold level. The number of transmission bits in each enhancement layer is then determined using a first method when the ratio is above a known threshold and using a second method otherwise.Type: GrantFiled: August 15, 2001Date of Patent: August 31, 2004Assignee: Koninklijke Philips Electronics N.V.Inventors: Mihaela van der Schaar, Hayder Radha
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Patent number: 6785336Abstract: In accordance with a specific aspect of the present invention, a compressed video stream, such as an MPEG-2 video stream, is received by a transport demultiplexor, synchronized, parsed into separate packet types, and written to buffer locations external the demultiplexor. Adaptation field is handled by a separate parser. In addition, primary elementary stream data can be handled by separate primary elementary stream parsers based upon the packet identifier of the primary elementary stream. Video packets can be parsed based upon stream identifier values. Specific packets of data are stored in one or more system memory or video memory buffers by an output controller based upon allocation table information. Private data associated with specific elementary streams or packet adaptation fields are repacketized, and written to an output buffer location. In specific implementations, the hardware associated with the system is used to acquire the data stream without any knowledge of the specific protocol of the stream.Type: GrantFiled: January 24, 2000Date of Patent: August 31, 2004Assignee: ATI Technologies, Inc.Inventors: Branko Kovacevic, Kevork Kechichian
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Patent number: 6781637Abstract: The present invention is to provide an image change detecting apparatus capable of detecting only a necessary scene change in encoding by the MPEG method accurately and certainly. The apparatus comprises an in-frame distribution value detecting part for detecting the in-frame distribution value in each frame image, a predicted error absolute value sum detecting part for detecting the predicted error absolute value sum in each frame image, and a host CPU for detecting whether or not a scene change occurs based on the change of the in-frame distribution values in each frame image of two consecutive frame images and the change of the predicted error absolute value sums at the boundary timing of the two frame images.Type: GrantFiled: March 14, 2001Date of Patent: August 24, 2004Assignee: Pioneer CorporationInventor: Tomohiro Kimura
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Patent number: 6781618Abstract: A 3D model of a scene is constructed by acquiring first images of a scene having unknown characteristics with a first camera. Corresponding second images of a another scene having known characteristics are acquired by a second camera. The first and second cameras have a fixed physical relationship to each other. Only the second images are analyzed to determine corresponding positions of the second camera while acquiring the first images. Then, the first images are assembled into the 3D model using the corresponding positions and the fixed physical relationship of the first and second camera.Type: GrantFiled: August 6, 2001Date of Patent: August 24, 2004Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventor: Paul Beardsley
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Patent number: 6781621Abstract: The present invention is directed to a launch monitor system that measures flight characteristics of an object moving in a predetermined field-of-view. The system includes a support structure, a lighting unit, a camera unit disposed on the support structure, and a calibration assembly. The calibration assembly includes a calibration fixture and at least one telescoping member. A first end of the telescoping member is coupled to the support structure and a second end is contactable with or coupled to the fixture. In an extended position of the telescoping member, the calibration fixture is in the field-of-view of the camera unit. In a retracted position, the calibration fixture out of the field-of-view. The calibration fixture further includes contrasting markings. In another embodiment, the system includes a frame and the launch monitor is pivotally suspended from the frame so that it self-levels. The present invention further includes a method of calibrating a launch monitor having a calibration fixture.Type: GrantFiled: March 29, 2000Date of Patent: August 24, 2004Assignee: Acushnet CompanyInventors: William Gobush, Diane I. Pelletier, Douglas C. Winfield, Charles Days, Steven Aoyama, Edmund A. Hebert, James Alan Silveira
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Patent number: 6782054Abstract: A method to enhance motion estimation is provided. The method includes providing a motion estimator, obtaining at least two candidate motion vectors from the motion estimator and applying an error function having a penalty that depends on the position and size of the candidate motion vectors. A device for recursive motion vector estimation having enhanced convergence is also provided. The device includes a vector generator and a best vector selector. The best vector selector comprises means to evaluate candidate motion vectors by applying an error function having at least a penalty that depends on the position and size of the candidate motion vectors.Type: GrantFiled: April 20, 2001Date of Patent: August 24, 2004Assignee: Koninklijke Philips Electronics, N.V.Inventor: Erwin B Bellers
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Patent number: 6782053Abstract: A method of coding video frames in a telecommunication system, comprising: forming a video frame of consecutive stationary frames, storing the frame reconstruction data of at least one frame as a reference frame and the motion data of earlier coded neighbouring blocks, defining by means of the motion data of one or more earlier coded neighbouring blocks the motion data of the block to be coded, which neighbouring block is formed by means of the stored reference frame, defining the frame reconstruction data of the frame to be coded, selecting for use the frame reconstruction data and motion data representing the block to be coded, which provide a pre-defined coding efficiency with a predefined picture quality.Type: GrantFiled: August 11, 2000Date of Patent: August 24, 2004Assignee: Nokia Mobile Phones Ltd.Inventor: Jani Lainema
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Patent number: 6778207Abstract: A virtual PTZ camera is described which forms a virtual image using multiple cameras whose fields of view overlap. Images from the cameras are merged by transforming to a common surface and property-blending overlapping regions to smooth transitions due to differences in image formation of common portions of a scene. To achieve high speed, the images may be merged to a common planar surface or set of surfaces so that transforms can be linear. Image information alone may be used to calculate the transforms from common feature points located in the images so that there is no need for three-dimensional geometric information about the cameras.Type: GrantFiled: August 7, 2000Date of Patent: August 17, 2004Assignee: Koninklijke Philips Electronics N.V.Inventors: Mi-Suen Lee, Mircea Nicolescu, Gerard Medioni
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Patent number: 6778609Abstract: An MPEG image decoding apparatus and method is disclosed, by which normal images can be supplied even if a bit stream is a nonstandardized bit stream having an error.Type: GrantFiled: February 9, 2001Date of Patent: August 17, 2004Assignee: NEC Electronics CorporationInventors: Masaki Nishizawa, Mitsuhiro Ishii
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Patent number: 6778208Abstract: An electronic endoscope system is provided with an outputting device specifying tool and a database having tables. In the tables, compensation data, for compensating image signals generated by the system in accordance with outputting devices, are recorded. When the model of outputting device is specified by the specifying tool, the tables are searched using the name of the specified model of outputting device as a search key, so that compensation data for compensating the image signals in accordance with the characteristics of the connected outputting device can be obtained. The image signals are output to the connected outputting device, after being compensated based on the compensation data.Type: GrantFiled: November 23, 2001Date of Patent: August 17, 2004Assignee: PENTAX CorporationInventors: Masaru Takeshige, Hiroyuki Kobayashi
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Patent number: 6775325Abstract: An apparatus and method for changing the bitrate of an encoded bitstream in a compressed domain, i.e., a domain where the input image is still represented by transform coefficients, e.g., DCT coefficients or wavelet coefficients is disclosed. The bitrate of the encoded bitstream is changed by applying a different quantization scale directly to the transform coefficients of the encoded bitstream. The requantization error or distortion introduced by the requantization process is addressed by propagating the requantization error to the following frame.Type: GrantFiled: April 6, 1999Date of Patent: August 10, 2004Assignee: Sarnoff CorporationInventor: Dinei A. Florencio
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Patent number: 6774932Abstract: A system for the enhancement of a televised golf broadcast, which requires: obtaining detailed topographic measurements of golf greens; inputting these data into a Geographic Information System (GIS) program, smoothing the data, and generating contours on a selected interval; storing and processing the contour data such that it may be viewed from various other perspectives; selecting a real-time televised image of a golf green from a plurality of camera positions; synchronizing and superimposing the contour database image over the televised feed; computing and processing equations of motion which take into account the location of the golf ball relative to the golf cup, the weight of the golf ball, the effect of the wind, the Stimpmeter speed of the green, and the gravitational influence of the slope of the green, to determine a path the putt can take to roll into the cup or to come to rest within 18 inches of the cup; and displaying the combined images along with the projection of the calculated ball path onType: GrantFiled: September 26, 2000Date of Patent: August 10, 2004Assignee: Ewing Golf Associates, LLCInventors: David J. Ewing, Zollie L. Johnson, Donald A. Vossler
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Patent number: 6775326Abstract: To achieve an encoding system including a highly efficient prediction performed in response to the content of a scene, a significance, and a motion characteristic of a moving picture and the like, memories a, b, c, motion compensator 5 responsive to an arbitrary transform parameter representing the motion of a prediction picture segment for generating a predicted picture by using arbitrary data stored in the memories a, b, c based upon the transform parameter, and memory update unit 15 for allowing the content of one or more of the memories to be updated at an arbitrary period of time, are provided.Type: GrantFiled: September 29, 1998Date of Patent: August 10, 2004Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Shunichi Sekiguchi, Kohtaro Asai, Tokumichi Murakami, Hirofumi Nishikawa, Shinichi Kuroda, Yoshimi Isu, Yuri Hasegawa