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| Number | Title | Issue Date |
| 6590936 | Coded data transform method, transcoding method, transcoding system, and data storage media A transcoding system comprises a decoding unit for receiving coded data which has been obtained by subjecting image data of each coding unit to a coding process including a first orthogonal transform process and a first quantization process, and decoding ... | 07/08/2003 |
| 6587507 | System and method for encoding video data using computationally efficient adaptive spline wavelets A system and method for encoding a two dimensional array of data utilizes a library having entries corresponding to a set of predefined two dimensional adaptive spline wavelet waveforms. Each predefined two dimensional adaptive spline wavelet waveform is ... | 07/01/2003 |
| 6584155 | Method and system for estimating motion vector The correlation between a coded block on the screen of the current image and a plurality of candidate blocks which exist in a search area on a reference screen temporally different from the current image and which has the same area as that of the coded bl... | 06/24/2003 |
| 6577334 | Vehicle control A vehicle control system includes a road data memory, current position sensor that detects a current position of a vehicle and a camera that takes a picture of the road ahead of the current position. At least one indicator line such as a lane dividing lin... | 06/10/2003 |
| 6574273 | Method and apparatus for decoding MPEG video signals with continuous data transfer A method and apparatus for decoding an input MPEG video stream are provided that includes a core processor with a very large instruction word (VLIW) processor and a co-processor that includes a variable length decoder (VLD) for decoding the MPEG video str... | 06/03/2003 |
| 6570921 | Data compression assembly having several data-compression channels A data compression assembly has several data-compression channels (DCC). The data-compression channels may be, for example, encoders which encode different programs in accordance with an MPEG standard. A data-compression channel comprises a data compresso... | 05/27/2003 |
| 6570610 | Security system with proximity sensing for an electronic device A security system includes a proximity sensor to protect against unauthorized access to an electronic device. The security system is armed upon an input from the proximity sensor indicating departure of an authorized user from the vicinity of the electron... | 05/27/2003 |
| 6567470 | Device and method for compressing images Video decoder decodes pictures B0, B1, I2, B3 of GOP-3 which have been read out from a recording medium along with recording of new compressed picture data onto the recording medium thereafter to further decode pictures B4, P5, B6 . . . to restore them. N... | 05/20/2003 |
| 6567116 | Multiple object tracking system A system 100 for tracking the movement of multiple objects within a predefined area using a combination of overhead X-Y filming cameras 25 and tracking cameras 24 with attached frequency selective filter 24f. Also employed are perspective Z filming camera... | 05/20/2003 |
| 6556626 | MPEG decoder, MPEG system decoder and MPEG video decoder An MPEG decoder is provided which is capable of performing processing of all PTS/DTS values even if data with the PTS/DTS values added is contained consecutively in a system stream. The MPEG decoder is adapted to replace a start code ID of data with the P... | 04/29/2003 |
| 6556624 | Method and apparatus for accomplishing multiple description coding for video A method and apparatus for utilizing temporal prediction and motion compensated prediction to accomplish multiple description video coding is disclosed. An encoder receives a sequence of video frames and divides each frame into non-overlapping macroblocks... | 04/29/2003 |
| 6552742 | Positional deviation adjusting apparatus of stereo image A positional deviation adjusting apparatus of a stereoscopic camera includes a correction circuit for transforming images geometrically according to transformation parameters and a calculating section. A plurality of reference areas are established on a r... | 04/22/2003 |
| 6553073 | Sending device, receiving device, sending-receiving device, transmitter, and transmitting method An object of the present invention is to provide a sending device, a receiving device, and a sending/receiving device which make it possible to easily implement a two-channel compressed moving picture transmission system by using an existing single-channe... | 04/22/2003 |
| 6546054 | Video transmission system using plural links An input video signal is distributed to two links. The distributed video signals are coded by encoders in a spacewise or timewise shifted manner, and then, are transmitted over the transmission links. On a receiving side, the video signals are decoded by ... | 04/08/2003 |
| 6542182 | System for displaying an area outside a normal viewing area to a vehicle driver A system including a self-powered, mobile camera unit is provided for displaying an area outside a normal viewing area to a vehicle driver. The camera unit includes a camera for generating images of objects, a camera control unit for controlling the camer... | 04/01/2003 |
| 6538689 | Multi-residence monitoring using centralized image content processing Improved multi-residence security systems combine distributed cameras with centralized image content processing and interactive monitoring. This particular combination improves cost-effectiveness by increasing the number of residences or other sites that ... | 03/25/2003 |
| 6539058 | Methods and apparatus for reducing drift due to averaging in reduced resolution video decoders Methods and apparatus for simulating, in reduced resolution video decoders, the biasing effect associated with MPEG's specified rounding of pixel values including a fractional component of 0.5 to the next highest integer value are described. In one embodi... | 03/25/2003 |
| 6535556 | Apparatus and method for encoding images and medium in which image encoding program has been recorded In the case where the code generation volume that the data occupancy rate in the buffer of the image decoding apparatus is smaller than the first, second or the third threshold value corresponding to the first, second or the third image currently being co... | 03/18/2003 |
| 6529555 | Signal processor Decoders A and B decode MPEG-2 bitstreams A0 and B0 and re-encoders 8 and 10 re-encode them as bitstreams AI and BI comprising only I frames. A switch (S1) switches from recoded stream AI to recoded s... | 03/04/2003 |
| 6519284 | Encoding method for the compression of a video sequence The invention relates to an encoding method for the compression of a video sequence divided into groups of frames decomposed by means of a tridimensional wavelet transform. According to this method, based on the hierarchical subband encoding process SPIHT... | 02/11/2003 |
| 6504569 | 2-D extended image generation from 3-D data extracted from a video sequence A method of generating a 2-D extended image from a video sequence representing a natural 3-D scene first determines motion parameters for a camera that recorded the scene with respect to a bakcground object from the video sequence using a structure-from-m... | 01/07/2003 |
| 6501800 | Variable bit-rate encoding device A variable bit-rate encoding device is provided that can perform a variable bit-rate encoding process at high rate. The subtracter 103 calculates a predictive error between compressed frame data and motion-compensated reference frame data and then outputs... | 12/31/2002 |
| 6498618 | Dual reality system An apparatus for merging real and virtual images in which points in three dimensions of an actual scene are obtained and selected in a random fashion and in a number sufficient to track the movement of the three dimensional scene relative to an observer w... | 12/24/2002 |
| 6498809 | Video bitstream error resilient transcoder, method, video-phone, video-communicator and device A video bitstrean error resilient transcoder (100), method (300), video-phone, and video-communicator are provided wherein error resilience is implemented by verifying a syntax of a video bitstream and replacing the video bitstream between resynchronizati... | 12/24/2002 |
| 6498815 | Method and arrangement for video coding A hybrid video encoder which carries out motion estimation and compensation (8) in the transform domain. In such an encoder, the calculation of a prediction block (Y) from previously encoded blocks (Z) stored in the transform-domain frame memory (7) requi... | 12/24/2002 |
| 6498814 | Drift-free transcoder and related method The invention relates to a transcoder comprising a drift compensating loop (DCL) for compensating a drift signal (Ei) introduced in the transcoding path by a quantization operation (Q2). This drift compensation loop performs a motion compensation of a sig... | 12/24/2002 |
| 6493042 | Feature based hierarchical video segmentation Systems and methods for detecting robust fade and dissolve and video sequences. The systems and methods use a two step approach to detect both discontinuous cuts and gradual changes in a video sequence. Specifically, an input video signal is first divided... | 12/10/2002 |
| 6487248 | Video decoding device of a TV receiver A video decoding device for a TV receiver, e.g., SDTV, decodes a compressed video signal transmitted from a transmitting side and displays the decoded signal. The device includes a first downsampling part for downsampling input data in a unit of block at ... | 11/26/2002 |
| 6486908 | Image-based method and system for building spherical panoramas The invention relates to building spherical panoramas for image-based virtual reality systems. The image-based spherical panoramas can be navigated in any desired view direction (360-degrees) by suitable three-dimensional image browsers or viewers. The me... | 11/26/2002 |
| 6483875 | Picture signal processing apparatus A matrix switcher selectively seizes plural compressed pictures and converts P-frames in a GOP into I-frames while modifying prediction data of B-frames in the GOP. A decoder expands the compressed pictures into original pictures. An input buffer memory c... | 11/19/2002 |
| 6480541 | Method and apparatus for providing scalable pre-compressed digital video with reduced quantization based artifacts A method for generating a digital motion video sequence at a plurality of bit rates uses a transitional coding source when switching between bitstreams having different bit rates during transmission of a video sequence. The transitional data may be frames... | 11/12/2002 |
| 6480540 | Method of image compression and device for implementing this method The invention relates to a method of image compression, especially of the MPEG2 type, in which the images are coded according to groups (GOPs) each of which comprises N images, with an I image coded in intra mode, P images predicted as a function of the i... | 11/12/2002 |
| 6476851 | Electronic endoscope An electronic endoscope includes an objective lens system in which chief rays directed toward the maximum image height are inclined outwardly with respect to the optical axis and a solid-state image sensor which has a light-receiving surface on which many... | 11/05/2002 |
| 6477204 | Video image decoding method and apparatus When stream video image signal are decoded simultaneously, and synchronized so as to be displayed on a screen, it prevents the disturbance of the displayed video image caused by changing the master. The DEMUX 101 separates the each channel video image sig... | 11/05/2002 |
| 6469734 | Video safety detector with shadow elimination A two-dimensional (2-D) machine-vision safety-solution involving a method and apparatus for performing high-integrity, high efficiency machine vision. The machine vision safety solution digitally filters a configurable number of time-sequenced images of a... | 10/22/2002 |
| 6466258 | 911 real time information communication A customer premise or site is fitted with cameras and other sensors. The sensors are interconnected with a central station, which monitors conditions. Upon occurrence of an emergency requiring dispatching of public safety officials to the site, the sensor... | 10/15/2002 |
| 6456317 | Endoscopic apparatus In an endoscopic apparatus, when the dynamic range expansion on/off switch is turned on, a CPU changes a switch from one contact over to another. Red, green, and blue digital signals sent from a knee and gamma circuit are output to respective dynamic rang... | 09/24/2002 |
| 6456664 | Motion image encoder Each of consecutively transmitted frames representing motion images is composed of a given number of blocks. A SAD cumulative value representing an image variation history is derived per block. Blocks to be refreshed, i.e. to be intraframe-coded, are sele... | 09/24/2002 |
| 6452625 | Compact video microscope The invention concerns a compact video microscope or video tube body (6) for all usual investigative methods. The video microscope can take the form of an enclosed microscope housing (1a) which, in addition the optical and mechanical components, comprises... | 09/17/2002 |
| 6449009 | Image transfer method for telecine A method for transferring images from cinematographic film to video media. The method uses a telecine machine which is associated with a digital storage device and a modification device is used to modify image data during transfer to video media. Accordin... | 09/10/2002 |
