Reducing latency in networked gaming by reducing I-frame sizes
AssigneeSony Interactive Entertainment Inc.
InventorsRathish Krishnan, Eric Hsuming Chen, Jason Wang, Deepali Arya, Hung-Ju Lee
Life of this patent
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Abstract
Techniques are described for reducing latency in networked gaming by reducing I-frame sizes (which also results in automatically increasing P-frame sizes) to reduce the overall amount of video being transmitted. The reduced size of the I-frames is compensated for by increasing the size of other frames using a low pass filter (LPF) such as a Gaussian filter which reduces sharpness that the decoder can try to recover, or by use of lower resolution. The I-frame can be reduced by rotating it or flipping/mirroring it to produce the smaller coded frame, sending a flag to signal the orientation.
Claims20
An apparatus comprising:
- a processor;
- and
- a non-transitory computer-readable medium communicatively coupled with the processor and having stored thereon computer-executable instructions that, when executed with the processor, cause the apparatus to:
- identify at least one condition of at least one network;
- determine whether an intraframe (I-frame) of a video is associated with a region of interest of the video;
- responsive to the condition and the determination of whether the I-frame of the video is associated with the region of interest of the video, reduce a size of the I-frame of the video;
- and
- send the I-frame and at least one non-I-frame to a transmitter for transmission over the network.
An apparatus comprising:
- a non-transitory computer-readable medium having stored thereon a computer program for performing a method, comprising:
- reducing a first portion of video prior to encoding using at least a first filtering parameter, the reducing based on an intraframe (I-frame) of the video being associated with a region of interest of the video;
- reducing a second portion of the video prior to encoding using at least a second filtering parameter not used to reduce the first portion;
- and
- transmitting the portions over a network to at least one receiver.
A method, comprising:
- receiving, over a network, at least a portion of at least a first keyframe of at least one video;
- receiving, over the network, signaling indicating reconstruction to apply to the portion of the keyframe, the signaling based on an intraframe (I-frame) of the video being associated with a region of interest of the video;
- and
- reconstructing the portion of the keyframe based on the signaling prior to presenting the portion of the keyframe on a video display.
Dependencies are inferred from the claim text.