System and Method For Compressing Video By Adjusting Tile Size Based On Detected Intraframe Motion Or Scene Complexity

• US 20090225220A1
• Filed: 01/23/2009
• Published: 09/10/2009
• Est. Priority Date: 12/10/2002
• Status: Abandoned Application

• Current Assignee: Sony Interactive Entertainment America LLC (Sony Group Corp.)
• Original Assignee: Sony Interactive Entertainment America LLC (Sony Group Corp.)
• Inventors: Perlman, Stephen G., van der Laan, Roger
• Application Number:
  US12/359,233
• Publication Number:
  US 20090225220A1
• Time in Patent Office: Days
• US Class Current: 348/416.100
• CPC Class Codes: A63F 13/12 involving interaction between a plurality of game devices, e.g. transmisison or distribution systems protocols for networked virtual reality, networked games H04L29/06034
• CPC Class Codes: A63F 13/30 Interconnection arrangements between game servers and game devices; Interconnection arrangements between game devices; Interconnection arrangements between game servers
• CPC Class Codes: A63F 13/335 using Internet
• CPC Class Codes: A63F 13/355 Performing operations on behalf of clients with restricted processing capabilities, e.g. servers transform changing game scene into an encoded video stream for transmitting to a mobile phone or a thin client
• CPC Class Codes: A63F 13/358 Adapting the game course according to the network or server load, e.g. for reducing latency due to different connection speeds between clients
• CPC Class Codes: A63F 2300/402 Communication between platforms, i.e. physical link to protocol
• CPC Class Codes: A63F 2300/552 for downloading to client devices, e.g. using OS version, hardware or software profile of the client device
• CPC Class Codes: H04L 65/403 Arrangements for multi-party communication, e.g. for conferences data switching systems for conference H04L12/18; arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities H04M3/56; television conferencing systems H04N7/15
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 67/131 Protocols for games, networked simulations or virtual reality
• CPC Class Codes: H04N 21/2143 located in a single building, e.g. hotel, hospital or museum arrangements specially adapted for plural spots in a confined site in broadcast systems H04H20/63; adaptations for transmission by electric cable for domestic distribution in television systems H04N7/106
• CPC Class Codes: H04N 21/21805 enabling multiple viewpoints, e.g. using a plurality of cameras
• CPC Class Codes: H04N 21/222 Secondary servers, e.g. proxy server, cable television Head-end provisioning of proxy services in data packet switching networks H04L67/56
• CPC Class Codes: H04N 21/2343 involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements video transcoding H04N19/40; media packet handling at the source H04L65/762
• CPC Class Codes: H04N 21/23605 Creation or processing of packetized elementary streams [PES]
• CPC Class Codes: H04N 21/23805 Controlling the feeding rate to the network, e.g. by controlling the video pump
• CPC Class Codes: H04N 21/2387 Stream processing in response to a playback request from an end-user, e.g. for trick-play
• CPC Class Codes: H04N 21/2393 involving handling client requests scheduling or organising the servicing of application requests H04L67/60
• CPC Class Codes: H04N 21/2402 Monitoring of the downstream path of the transmission network, e.g. bandwidth available traffic monitoring in data switching networks H04L43/00; monitoring data switching networks utilization H04L43/0876
• CPC Class Codes: H04N 21/2743 Video hosting of uploaded data from client
• CPC Class Codes: H04N 21/2747 : Remote storage of video programs received via the downstream path, e.g. from the server
• CPC Class Codes: H04N 21/42607 : for processing the incoming bitstream
• CPC Class Codes: H04N 21/4781 : Games
• CPC Class Codes: H04N 21/6125 : involving transmission via Internet transmission by internet of broadcast information H04H60/82
• CPC Class Codes: H04N 21/64322 : IP
• CPC Class Codes: H04N 21/6587 : Control parameters, e.g. trick play commands, viewpoint selection
• CPC Class Codes: H04N 21/8173 : End-user applications, e.g. Web browser, game
• CPC Class Codes: H04N 21/8545 : for generating interactive applications
• CPC Class Codes: H04N 7/106 : for domestic distribution
• CPC Class Codes: H04N 7/17318 : Direct or substantially direct transmission and handling of requests
• CPC Class Codes: H04W 4/06 : Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 84/12 : WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/14 : Backbone network devices

Abstract

A system and method are described below for encoding interactive low-latency video using interframe coding. For example, one embodiment of a computer-implemented method for performing video compression comprises: detecting motion or high scene complexity within a sequence of images occurring at different regions within the sequence of images; logically subdividing each of the sequence of images into a plurality of tiles, each tile having a size selected based on the amount of motion detected in a region in which the tile is positioned; and encoding one or more of the tiles within each image of the sequence of images using a first compression format and encoding the remainder of the tiles within each image of the sequence of images using a second compression format.

Claims

1. A computer-implemented method for performing video compression comprising:

detecting motion within a sequence of images occurring at different regions within the sequence of images;

logically subdividing each of the sequence of images into a plurality of tiles, each tile having a size selected based on the amount of motion detected in a region in which the tile is positioned; and

encoding one or more of the tiles within each image of the sequence of images using a first compression format and encoding the remainder of the tiles within each image of the sequence of images using a second compression format.

2. The method as in claim 1 wherein the first compression format comprises intraframe coding.

3. The method as in claim 2 wherein the second compression format comprises interframe coding.