Image information reception apparatus, image information transmission apparatus, and program and method used therein
AssigneeDenso Corporation
InventorsOsamu Yoshizumi, Yasunobu Sugiura
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Abstract
An image information reception apparatus includes a receiving unit, a packet analyzing unit, and a transmission rate change processing unit. The receiving unit receives image information from an image information transmission apparatus through a communication network. The packet analyzing unit determines an actual reception variation that is based on variations in a reception interval of packets that are included in the image information. The transmission rate change processing unit performs a process to increase a target transmission rate of the image information transmission apparatus in response to the actual reception variation being greater than a predetermined value.
Claims10
An image information reception apparatus comprising:
- a receiving unit that receives image information from an image information transmission apparatus through a communication network, the image information including an image encoded using inter-frame prediction;
- a packet analyzing unit that determines an actual reception variation that is based on variations in a reception interval of packets that are included in the image information;
- and a transmission rate change processing unit that performs a process to increase a target transmission rate of the image information transmission apparatus in response to the actual reception variation being:
- greater than a predetermined value;
- and
- determined to be attributed to a difference in data amount between an I frame, and
- a P frame or a B frame determined by the inter-frame prediction.
An image information reception method comprising:
- receiving image information from an image information transmission apparatus through a communication network, the image information including an image encoded using inter-frame prediction;
- determining an actual reception variation that is based on variations in a reception interval of packets that are included in the image information;
- and
- performing a process to increase a target transmission rate of the image information transmission apparatus in response to the actual reception variation being:
- greater than a predetermined value;
- and
- determined to be attributed to a difference in data amount between an I frame, and
- a P frame or a B frame determined by the inter-frame prediction.
A non-transitory computer-readable storage medium storing therein an image information reception program that is implemented by a computer, the image information reception program causing the computer to implement:
- receiving image information from an image information transmission apparatus through a communication network, the image information including an image encoded using inter-frame prediction;
- determining an actual reception variation that is based on variations in a reception interval of packets that are included in the image information;
- and
- performing a process to increase a target transmission rate of the image information transmission apparatus in response to the actual reception variation being:
- greater than a predetermined value;
- and
- determined to be attributed to a difference in data amount between an I frame, and
- a P frame or a B frame determined by the inter-frame prediction.
Dependencies are inferred from the claim text.