INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND PROGRAM

• US 20150271500A1
• Filed: 03/12/2015
• Published: 09/24/2015
• Est. Priority Date: 03/24/2014
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: KOUNO, MASAKAZU, ANDO, YUJI
• Granted Patent: US 10,182,232 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04N 19/12 Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
• CPC Class Codes: H04N 19/154 Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion use of rate-distortion criteria H04N19/147
• CPC Class Codes: H04N 19/17 the unit being an image region, e.g. an object
• CPC Class Codes: H04N 19/395 involving distributed video coding [DVC], e.g. Wyner-Ziv video coding or Slepian-Wolf video coding

Abstract

An information processing apparatus includes: a storage unit configured to store information on a plurality of encoders; and a control unit configured to be capable of transmitting a first instruction signal for instructing the plurality of encoders to encode input video data under first encoding conditions different for each of the plurality of encoders, and obtaining, if an image quality of the video data encoded by the plurality of encoders does not satisfy a predetermined criteria, predetermined information associated with the image quality from the encoded video data and transmitting, based on the predetermined information, a second instruction signal for instructing to encode the input video data under a second encoding condition different from the first encoding conditions to at least one encoder of the plurality of encoders.

Claims

1. An information processing apparatus, comprising:

a storage unit configured to store information on a plurality of encoders; and

a control unit configured to be capable of

transmitting a first instruction signal for instructing the plurality of encoders to encode input video data under first encoding conditions different for each of the plurality of encoders, and

obtaining, if an image quality of the video data encoded by the plurality of encoders does not satisfy a predetermined criteria, predetermined information associated with the image quality from the encoded video data and transmitting, based on the predetermined information, a second instruction signal for instructing to encode the input video data under a second encoding condition different from the first encoding conditions to at least one encoder of the plurality of encoders.

2. The information processing apparatus according to claim 1, wherein

the plurality of encoders are provided in a plurality of apparatuses in a network, the information processing apparatus further comprising

a communication unit capable of transmitting the first instruction signal to the encoder of each of the plurality of apparatuses.

3. The information processing apparatus according to claim 2, wherein

the plurality of apparatuses have different arithmetic processing capabilities, and

the control unit is configured to control the communication unit to transmit the first instruction signal for instructing to perform encoding under an encoding condition having a first calculation amount out of the first encoding conditions to a first apparatus having a first arithmetic processing capability and transmit the first instruction signal for instructing to perform encoding under an encoding condition having a second calculation amount smaller than the first calculation amount out of the first encoding conditions to a second apparatus having a second arithmetic processing capability lower than the first arithmetic processing capability.

4. The information processing apparatus according to claim 1, wherein

the control unit is configured to set encoding using different first encoding parameters by a first encoding method having a first encoding efficiency as the first encoding conditions and set, based on the predetermined information obtained by the encoding by the first encoding method, encoding using a second encoding parameter by a second encoding method having a second encoding efficiency higher than the first encoding efficiency as the second encoding condition.

5. The information processing apparatus according to claim 1, wherein

the control unit is configured to set the first encoding conditions such that a plurality of regions in each frame of the input video data are encoded by different encoders and to transmit the first instruction signal.

6. The information processing apparatus according to claim 1, wherein

the input video data is video data obtained by decoding video data encoded by a first encoding method having a first encoding efficiency, and

the control unit is configured to set, based on the predetermined information obtained from the video data encoded by the first encoding method, encoding parameters of a second encoding method different from the first encoding method as the first encoding conditions, the encoding parameters being different for each of the encoders.

7. An information processing system, comprising:

a plurality of apparatuses each including an encoder; and

an information processing apparatus including

a storage unit configured to store information on the encoder, and

a control unit configured to be capable of

transmitting a first instruction signal for instructing the plurality of encoders to encode input video data under first encoding conditions different for each of the plurality of encoders, and

obtaining, if an image quality of the video data encoded by the plurality of encoders does not satisfy a predetermined criteria, predetermined information associated with the image quality from the encoded video data and transmitting, based on the predetermined information, a second instruction signal for instructing to encode the input video data under a second encoding condition different from the first encoding conditions to at least one encoder of the plurality of encoders.

8. An information processing method, comprising:

transmitting a first instruction signal for instructing the plurality of encoders to encode input video data under first encoding conditions different for each of the plurality of encoders;

obtaining, if an image quality of the video data encoded by the plurality of encoders does not satisfy a predetermined criteria, predetermined information associated with the image quality from the encoded video data; and

transmitting, based on the predetermined information, a second instruction signal for instructing to encode the input video data under a second encoding condition different from the first encoding conditions to at least one encoder of the plurality of encoders.

9. A program that causes an information processing apparatus to execute the steps of:

transmitting a first instruction signal for instructing the plurality of encoders to encode input video data under first encoding conditions different for each of the plurality of encoders;

obtaining, if an image quality of the video data encoded by the plurality of encoders does not satisfy a predetermined criteria, predetermined information associated with the image quality from the encoded video data; and

transmitting, based on the predetermined information, a second instruction signal for instructing to encode the input video data under a second encoding condition different from the first encoding conditions to at least one encoder of the plurality of encoders.