公开(公告)号：MXPA02011206A

公开(公告)日：2003-03-10

申请号：MXPA02011206

申请日：2001-05-11

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA

IPC: H04N19/105 ,  G06T9/00 ,  H03M7/36 ,  H04N19/51 ,  H04N19/89 ,  H04N7/64

Abstract: Un metodo de codificacion de una senal de video que representa una secuencia de imagenes, el metodo emplea tanto una prediccion no temporal como una prediccion temporal, en donde el metodo comprende, para cada imagen que forma una imagen de referencia para la prediccion temporal de otra imagen, en asociacion con cada una de esas imagenes un indicador que indica el orden temporal de la imagen de referencia en la senal de video codificada en relacion con las otras imagenes de referencia en la senal de video codificada.

公开(公告)号：MXPA02011201A

公开(公告)日：2003-03-10

申请号：MXPA02011201

申请日：2001-05-14

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA

IPC: H04N19/89 ,  G06T9/00 ,  H04N19/105 ,  H04N19/51 ,  H04N19/895 ,  H04N7/64

Abstract: Un metodo de codificacion de una senal de video que representa una secuencia de imagenes, el metodo consiste en recibir una imagen actual para codificacion, formar una prediccion temporal de la imagen actual a partir de una imagen de referencia por omision para la imagen actual, comparar la imagen de referencia por omision con por lo menos una imagen de referencia adicional, calcular una medicion de la similitud entre la imagen de referencia por omision y cada imagen de referencia adicional y, si la medicion de similitud satisface un criterio predeterminado, enviar un indicador que identifica la imagen de referencia adicional.

公开(公告)号：BR0010129A

公开(公告)日：2002-01-15

申请号：BR0010129

申请日：2000-04-26

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA

IPC: H04L12/56 ,  H04L29/10 ,  H04N7/24 ,  H04N7/26 ,  H04N5/00

Abstract: A data transmission system (10) is provided for transmitting a data signal between a server (12, 14, 16, 18) and a communications terminal (20, 22) over a transmission link having a variable bandwidth. The data signal is a scalable compressed multimedia clip comprising a sequence of images. Each image has a base layer and a number of enhancement layers. To cope with variability in the bandwidth, the sequence is re-ordered so that the base layers have greater safety times than the enhancement layers. This allows all of the base layers to arrive in time to be played at the expense of the enhancement layers.

公开(公告)号：CA2412722A1

公开(公告)日：2002-01-03

申请号：CA2412722

申请日：2001-06-28

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA

IPC: H03M7/30 ,  H04N19/65 ,  H04N19/89 ,  H04N7/50 ,  H04N7/64

Abstract: The invention provides a method that reduces degradation in the perceived quality of images in a video sequence due to data loss. This effect is achieved by effectively delaying the insertion of an INTRA coded frame (50) after a periodic INTRA frame refresh, INTRA update request, or scene cut. Frames associated with INTRA frame requests are not themselves coded in INTR A format, but instead a frame (50) occurring later in the video sequence is chosen for coding in INTRA format. Preferably, the actual INTRA frame is selected such that it lies approximately mid-way between periodic INTRA requests. Frames (P2, P3) occurring prior to the actual INTRA coded frame (5 0) are encoded using temporal prediction, in reverse order, starting from the actual INTRA frame, while those frames (P4, P5) occurring after the INTRA coded frame (50) are encoded using temporal prediction in the forward direction.

公开(公告)号：CA2408726A1

公开(公告)日：2001-11-22

申请号：CA2408726

申请日：2001-05-11

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA ,  CAGLAR KEREM

IPC: G06T9/00 ,  H04N19/895 ,  H04N21/4363 ,  H04N21/61 ,  H04N7/68 ,  H04N5/14

Abstract: A method of encoding a video signal representing a sequence of pictures, the method comprising comparing a first picture with a second picture, calculating a measure of the similarity between the first and the second pictures, comparing the measure of similarity with a predetermined criterion of similarity and, when the measure of similarity does not meet the predetermined criterion of similarity, outputting an indicator indicating that a non-temporally predictive error concealment method should be used by a subsequent decoder and, when the measure of similarity meets the predetermined criterion of similarity, outputting an indicator indicating that a temporally predictive error concealment method should be used by a subsequent decoder.

公开(公告)号：HU230597B1

公开(公告)日：2017-02-28

申请号：HU0302055

申请日：2001-05-14

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA ,  CAGLAR KEREM

IPC: H04N7/24 ,  H04N19/89 ,  G06T9/00 ,  H04N19/105 ,  H04N19/51 ,  H04N19/895

公开(公告)号：CA2666452C

公开(公告)日：2014-12-16

申请号：CA2666452

申请日：2007-10-15

Applicant: NOKIA CORP

Inventor： CHEN YING ,  WANG YE-KUI ,  HANNUKSELA MISKA

IPC: H04N19/61 ,  H04N13/00

Abstract: A system and method for encoding a first picture sequence and a second picture sequence into coded pictures, with the first picture sequence and the second picture sequence being different, and with at least one coded picture of the second picture sequence being predicted from at least one picture in the first picture sequence. According to various embodiments of the present invention, signal element is encoded into a coded picture of the second picture sequence. The signal element indicates whether a picture in the first picture sequence is used for prediction of the coded picture of the second picture sequence.

公开(公告)号：CA2661578C

公开(公告)日：2014-06-17

申请号：CA2661578

申请日：2007-08-20

Applicant: NOKIA CORP

Inventor： WANG YE-KUI ,  HANNUKSELA MISKA ,  BOUAZIZI IMED

IPC: H04N19/39 ,  H04N7/24 ,  H04N21/231

Abstract: A system and method for signaling and indicating track relationship information in media files. The present invention provides a mechanism for signaling the information of layered track groups and the information of MDC track groups, as well as a mechanism for signaling track relationship information in an efficient way. In local playback or unicast streaming applications, to select an independently decodable track for a certain media type, the information of alternate track groups is first found via the track relation box, and one track is selected from an alternate track group for the media type. If stream switching is desired, the switching track group information is found via the track relation box. In multicast applications with scalable or MDC streams, the tracks in a layered or MDC group are found via the track relation box and selected among all the layered or MDC groups.

公开(公告)号：BRPI0718207A2

公开(公告)日：2013-11-12

申请号：BRPI0718207

申请日：2007-10-16

Applicant: NOKIA CORP

Inventor： GUO YI ,  WANG YE-KUI ,  HANNUKSELA MISKA ,  LI HOUQIANG

IPC: H04N7/26 ,  H04N19/593

Abstract: A system and method for improving both coding efficiency and decoding accuracy in scalable video coding involving discardable lower layer adaptations, where applications can omit transmission of unused data for inter-layer prediction for all layers below an operation point of receivers. Indicator flags are utilized to avoid transmitting syntax elements that must be set to fixed values. In addition, padding algorithms or additional encoding constraints are applied to the encoding process.

公开(公告)号：CA2846425A1

公开(公告)日：2013-03-07

申请号：CA2846425

申请日：2012-08-30

Applicant: NOKIA CORP

Inventor： RUSANOVSKYY DMYTRO ,  HANNUKSELA MISKA ,  SU WENYI

IPC: H04N19/52 ,  H04N13/00 ,  H04N19/137 ,  H04N19/176 ,  H04N19/597

Abstract: There is disclosed a method, an apparatus, a server, a client and a non-transitory computer readable medium comprising a computer program stored therein for motion compensated video coding and decoding. Texture block motion information is used to derive disparity/depth motion information. Alternatively, disparity/depth motion information is used to derive texture block motion information.