公开(公告)号：AP2545A

公开(公告)日：2012-12-20

申请号：AP2009004850

申请日：2007-10-17

Applicant: NOKIA CORP

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

IPC: H04N7/26

Abstract: An improved system and method for implementing efficient decoding of scalable video bitstreams is provided. A virtual decoded picture buffer is provided for each lower layer of the scalable video bitstream. The virtual decoded picture buffer stores decoded lower layer pictures for reference. The decoded lower layer pictures used for reference are compiled to create a reference picture list for each layer. The reference picture list generated by the virtual decoded picture buffer is used during a direct prediction process instead of a target reference list to correctly decode a current macroblock.

公开(公告)号：CA2542026C

公开(公告)日：2012-11-20

申请号：CA2542026

申请日：2003-04-28

Applicant: NOKIA CORP

Inventor： WANG YE-KUI ,  HANNUKSELA MISKA

IPC: G06T9/00 ,  H04N19/176 ,  H04N19/61

Abstract: A method for indicating size, shape and location of a region within a digital picture the picture being divided into a set of blocks. A value for at least one size parameter, which is indicative of a number of the blocks within said region is defined, and a value for at least one shape evolution parameter, which is indicative of a selection order of the blocks in said region is selected. Then preferably the values for said at least one size parameter and said at least one shape evolution parameter are encoded into a bitstream of a video sequence in order to indicate size, shape and location of the region within the picture.

公开(公告)号：AU2012202346A1

公开(公告)日：2012-05-10

申请号：AU2012202346

申请日：2012-04-20

Applicant: NOKIA CORP

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

IPC: H04N7/24 ,  H04N7/26

Abstract: SYSTEM AND METHOD FOR INDICATING TRACK RELATIONSHIPS IN MEDIA FILES Abstract Disclosed is a method of storing coded multimedia content into a container file. The method comprises: including a plurality of tracks into the container file; determining track relationship information identifying multiple description coding (MDC) or layered group track relationships among the plurality of tracks; and signaling the track relationship information in a track relation box.

公开(公告)号：CA2556120C

公开(公告)日：2012-05-08

申请号：CA2556120

申请日：2005-02-14

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA ,  AKSU EMRE

IPC: H04N7/24 ,  H04L12/56 ,  H04N7/12 ,  H04N7/32 ,  H04N7/50

Abstract: The invention relates to method for buffering encoded pictures. The method includes an encoding step for forming encoded pictures in an encoder. The method also includes a transmission step for transmitting said encoded pictures to a decoder as transmission units, a buffering step for buffering r transmission units transmitted to the decoder in a buffer, and a decoding step for decoding the encoded pictures for forming decoded pictures. The buffer size is defined so that the total size of at least two transmission units is defined and the maximum buffer size is defined on the basis of the total size.

公开(公告)号：CA2412722C

公开(公告)日：2012-02-07

申请号：CA2412722

申请日：2001-06-28

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA

IPC: H03M7/30 ,  H04N19/65 ,  H04N19/89

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 INTRA 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 (50) 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：BRPI0617728A2

公开(公告)日：2011-08-02

申请号：BRPI0617728

申请日：2006-10-11

Applicant: NOKIA CORP

Inventor： WANG YE-KUI ,  HANNUKSELA MISKA

IPC: H04N7/26

Abstract: A system and method for signaling low-to-high layer switching points in a file format level to enable efficient scalable stream switching in streaming servers and local file playback. The present invention also provides for a system and method for signaling low-to-high layer switching points in video bit stream, e.g., to enable intelligent forwarding of scalability layers in media-aware network elements or computationally scalable decoding in stream recipients.

公开(公告)号：DE60237028D1

公开(公告)日：2010-08-26

申请号：DE60237028

申请日：2002-11-22

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA ,  WANG YE-KUI

IPC: H04N7/26 ,  H03M7/30

公开(公告)号：CA2730543A1

公开(公告)日：2010-01-21

申请号：CA2730543

申请日：2009-07-16

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA ,  WANG YE-KUI

IPC: H04N7/24 ,  G06F17/30 ,  H04N7/26

Abstract: A method comprises storing real-time multimedia data in a plurality of tracks and/or track subsets; and identifying one or more multi-track groups, each multi-track group being associated with a relationship among one or more of the plurality of tracks and/or track subsets.

公开(公告)号：MX2009011873A

公开(公告)日：2009-11-18

申请号：MX2009011873

申请日：2008-05-02

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA

IPC: G06F17/30

Abstract: Un sistema y procedimiento para almacenar flujos recibidos de medios en tiempo real en un fichero contenedor de multimedios. El contenido de medios se graba en un fichero según un formato de fichero que proporciona instrucciones para construir los paquetes de medios. Al menos un paquete de medios recibido se representa en el fichero usando las instrucciones para construir paquetes de medios. El paquete, o paquetes, de medios, recibido(s) en el fichero también está(n) asociado(s) a una indicación de que puede(n) contener errores.

公开(公告)号：AP200904850A0

公开(公告)日：2009-06-30

申请号：AP200904850

申请日：2007-10-17

Applicant: NOKIA CORP

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

IPC: H04N7/26

CPC classification number: H04N19/573 ,  H04N19/176 ,  H04N19/31 ,  H04N19/33 ,  H04N19/44 ,  H04N19/503 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70

Abstract: An improved system and method for implementing efficient decoding of scalable video bitstreams is provided. A virtual decoded picture buffer is provided for each lower layer of the scalable video bitstream. The virtual decoded picture buffer stores decoded lower layer pictures for reference. The decoded lower layer pictures used for reference are compiled to create a reference picture list for each layer. The reference picture list generated by the virtual decoded picture buffer is used during a direct prediction process instead of a target reference list to correctly decode a current macroblock.