Encoding method, encoding apparatus, and computer program

• US 20070253480A1
• Filed: 04/25/2007
• Published: 11/01/2007
• Est. Priority Date: 04/26/2006
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kanota, Keiji, Jinno, Hiroshi, Yamada, Makoto, Tsujii, Satoshi
• Application Number:
  US11/789,937
• Publication Number:
  US 20070253480A1
• Time in Patent Office: Days
• US Class Current: 375/240.80
• CPC Class Codes: H04N 19/124 Quantisation
• CPC Class Codes: H04N 19/152 by measuring the fullness of the transmission buffer
• CPC Class Codes: H04N 19/176 the region being a block, e.g. a macroblock
• CPC Class Codes: H04N 19/61 in combination with predictive coding

Abstract

An encoding apparatus includes a processing unit for generating and/or processing a moving image, an encoding unit for encoding one of the generated moving image and the processed moving image, and a control unit for controlling the encoding unit so that an amount of code per predetermined unit encoded by the encoding unit corresponds to information supplied from the processing unit, the information indicating one of the status of the moving image, the status of generation of the moving image, and a process of the processing unit applied to the moving image.

Claims

1. An encoding apparatus comprising:

processing means for generating and/or processing a moving image;

encoding means for encoding one of the generated moving image and the processed moving image; and

control means for controlling the encoding means so that an amount of code per predetermined unit encoded by the encoding means corresponds to information supplied from the processing means, the information indicating one of the status of the moving image, the status of generation of the moving image, and a process of the processing means applied to the moving image.

2. The encoding apparatus according to claim 1, wherein the control means controls the encoding means so that the amount of code per predetermined unit corresponds to the information supplied from the processing means, the information indicating one of the status of a frame forming the moving image, the status of generation of the frame, and the process applied to the frame.

3. The encoding apparatus according to claim 1, wherein the control means controls the encoding means so that the amount of code per encoding unit area corresponds to the information, the encoding unit area including a predetermined number of pixels in a frame forming the moving image.

4. The encoding apparatus according to claim 3, wherein the control means controls the encoding means so that an amount of code per macro block corresponds to the information by introducing a Q scale in the encoding of the macro block as the encoding unit area.

5. The encoding apparatus according to claim 1, further comprising introducing means for introducing an amount of code per group of pictures (GOP) in response to the information indicating one of the status of the moving image, the status of generation of the moving image, and the process applied to the moving image,

wherein the control means controls the encoding means so that an amount of code per macro block varies in response to the information with respect to the amount of code per introduced GOP, the macro block being the unit.

6. The encoding apparatus according to claim 1, wherein the control means controls the encoding means so that the amount of code per unit to be encoded by the encoding means from now on corresponds to the information and the amount of code encoded so far by the encoding means.

7. The encoding apparatus according to claim 1, wherein the processing means generates the moving image by photographing a subject.

8. The encoding apparatus according to claim 1, wherein the processing means processes the moving image to detect an image of a face contained in the moving image, and

wherein the control means controls the encoding means so that the amount of code per unit corresponds to the image of the detected face.

9. An encoding method of an encoding apparatus including a processing unit for generating and/or processing a moving image and an encoding unit for encoding one of the generated moving image and the processed moving image, the encoding method comprising a step of controlling the encoding unit so that an amount of code per predetermined unit encoded by the encoding unit corresponds to information supplied from the processing unit, the information indicating one of the status of the moving image, the status of generation of the moving image, and a process of the processing unit applied to the moving image.

10. A computer program for causing a computer to perform an encoding method of an encoding apparatus including a processing unit for generating and/or processing a moving image and an encoding unit for encoding one of the generated moving image and the processed moving image, the computer program comprising a step of controlling the encoding unit so that an amount of code per predetermined unit encoded by the encoding unit corresponds to information supplied from the processing unit, the information indicating one of the status of the moving image, the status of generation of the moving image, and a process of the processing unit applied to the moving image.

11. An encoding apparatus comprising:

a processing unit generating and/or processing a moving image;

an encoding unit encoding one of the generated moving image and the processed moving image; and

a control unit controlling the encoding unit so that an amount of code per predetermined unit encoded by the encoding unit corresponds to information supplied from the processing unit, the information indicating one of the status of the moving image, the status of generation of the moving image, and a process of the processing unit applied to the moving image.