公开(公告)号：AU2005241687A1

公开(公告)日：2005-11-17

申请号：AU2005241687

申请日：2005-05-03

Applicant: NOKIA CORP

Inventor： CURCIO IGOR ,  AKSU EMRE ,  WANG YE-KUI ,  HANNUKSELA MISKA

IPC: H04L12/24 ,  H04L12/26 ,  H04L29/06 ,  H04N7/00 ,  H04N7/24

Abstract: A method for quality feedback in a streaming service is shown, wherein at least one media stream is streamed to a client for playback, the method comprising determining a quality feedback value according to at least one quality metric from a pre-defined set of quality metrics, wherein the pre-defined set of quality metrics contains a quality metric related to at least one of the playback of the at least one media stream and a corruption of one out of at least two types of frames contained in the at least one media stream, and reporting the quality feedback value to a server. A system, a client, a server, a computer program, a computer program product and a protocol for quality feedback are also shown.

公开(公告)号：BR0309713A

公开(公告)日：2005-02-15

申请号：BR0309713

申请日：2003-04-28

Applicant: NOKIA CORP

Inventor： WANG YE-KUI ,  HANNUKSELA MISKA

IPC: H04N19/50 ,  H04N19/176 ,  H04N19/89 ,  H04N7/50

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：CA2524219A1

公开(公告)日：2004-11-11

申请号：CA2524219

申请日：2004-04-29

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA

IPC: G06K9/36 ,  H04N20060101 ,  H04N7/26 ,  H04N7/50

Abstract: Encoded pictures comprise one or more independently decodable frames, reference frames, and predicted frames. In the method an arrangement step is performed for arranging the pictures in an encoding order, and information o n the presentation order is defined for the encoded pictures. Further in the method, a transmission step is performed for transmitting said encoded pictures to a decoder, a decoding step for decoding the encoded pictures for forming decoded pictures, and rearranging step for arranging the decoded pictures in presentation order. An expected increment value of the presentation order per picture is defined, and a parameter indicative of the difference between the expected increment value and the real increment value is calculated. The calculated parameter is VLC coded, and the VLC coded parameter is transmitted, wherein the VLC coded parameter is used in the decoder for arranging the decoded pictures in correct presentation order.

公开(公告)号：FI114527B

公开(公告)日：2004-10-29

申请号：FI20020127

申请日：2002-01-23

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA

IPC: H04N19/30 ,  G06T9/00 ,  H04N19/895 ,  H04N7/50

Abstract: A method for coding video frames for forming a scalable, compressed video sequence comprising video frames coded according to at least a first and a second frame format. The video frames of the first frame format are independent video frames, and the video frames of the second frame format are predicted from at least one of the other video frames. The video sequence has a first sub-sequence determined therein, at least part of the first sub-sequence being formed by coding at least video frames of the first frame format; and with at least a second sub-sequence, at least part of which is formed by coding video frames of the second frame format, and at least one video frame of the second sub-sequence having been predicted from at least one video frame of the first sub-sequence. Frame identifier data of the second sub-sequence is determined into the video sequence.

公开(公告)号：AU2004214313A1

公开(公告)日：2004-09-02

申请号：AU2004214313

申请日：2004-02-17

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA

IPC: H04N7/24 ,  H04N7/26 ,  H04N19/89 ,  H04N5/38

Abstract: The invention relates to a method for buffering multimedia information, wherein a parameter is defined indicative of the maximum amount of transmission units comprising multimedia data that precede any transmission unit comprising multimedia data in the packet stream in transmission unit transmission order and follow the transmission unit comprising multimedia data in decoding order. The invention also relates to a system, a transmitting device, a receiving device, a computer program product, a signal and a module.

公开(公告)号：EE200200643A

公开(公告)日：2004-06-15

申请号：EEP200200643

申请日：2001-05-11

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA ,  CAGLAR KEREM

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

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：AU2003266425A1

公开(公告)日：2004-04-19

申请号：AU2003266425

申请日：2003-09-25

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA ,  VARSA VIKTOR ,  CURCIO IGOR D

IPC: H04L1/00 ,  H04L12/56 ,  H04L12/46 ,  H04Q7/38

Abstract: The present invention relates to a method and a communication system for transmission of multimedia streams. Multimedia streams are transmitted in the communication system from a sending communication device to a receiving communication device at least partly via a wireless communication network. Information about the multimedia stream is transmitted to the receiving communication device comprising at least one parameter of the transmission of the multimedia stream for reservation of network resources. The parameter is the maximum bit rate which is needed for the transmission or the maximum service data unit size to be used in the transmission. It is also possible that both the mentioned parameters will be transmitted as attributes of the session description protocol. In an advantageous embodiment the receiving communication device informs the sending communication device about the QoS profile parameters which the wireless communication network granted for the transmission.

公开(公告)号：EE200200642A

公开(公告)日：2004-04-15

申请号：EEP200200642

申请日：2001-05-14

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA ,  CAGLAR KEREM

IPC: H04N19/89 ,  G06T9/00 ,  H04N19/105 ,  H04N19/51 ,  H04N19/895 ,  H04N7/46 ,  H04N7/64 ,  H04N7/68

Abstract: A method for decoding an encoded video signal representing a sequence of pictures, the method comprising: - determining that a corresponding area of a default reference picture, for use in forming a motion compensated prediction for an area of a current picture, has been corrupted or lost; - examining an indicator provided in the encoded video signal to identify an area of an alternative reference picture that is sufficiently similar to the corresponding area of the default reference picture; and - forming a motion compensated prediction for the area of the current picture using the identified sufficiently similar area of the alternative reference picture.

公开(公告)号：AU2003224352A1

公开(公告)日：2003-11-17

申请号：AU2003224352

申请日：2003-04-30

Applicant: NOKIA CORP

Inventor： HANNUKSELA MISKA

IPC: G06T9/00 ,  H04N19/89 ,  H04N19/895

Abstract: A method of encoding a video signal representing a sequence of pictures, which comprises receiving a current picture for encoding, forming a temporal prediction of the current picture or a part thereof from a first reference picture or a part thereof associated with the current picture, and further comprising associating a second reference picture or a part thereof with the current picture for forming a temporal prediction of the current picture or a part thereof based on a similarity measure. The similarity measure is selected from a group which includes a measure indicative of the similarity between the first reference picture or a part thereof and the second reference picture or a part thereof and a measure indicative of a similarity between the current picture or a part thereof and the second reference picture or a part thereof. A corresponding video decoding method, video encoder and video decoder are presented.

公开(公告)号：CA2460004A1

公开(公告)日：2003-04-03

申请号：CA2460004

申请日：2002-09-19

Applicant: NOKIA CORP

Inventor： AKSU EMRE ,  HANNUKSELA MISKA

IPC: H04L29/06 ,  H04N7/173 ,  H04L12/18 ,  G06F17/30

Abstract: The invention relates to a method for composing a multimedia file comprising meta-data and media-data. The multimedia file is composed such that the file comprises at least one part for file level meta-data common to all media samples of the file and independent segments comprising media-data of a plurality of media samples and meta-data of said media samples.