Camera system and image processing method

一种相机、子带图像的技术，应用在图像通信、电视系统的零部件、固体图像信号发生器等方向，达到高精确度、高效压缩编码的效果

Active Publication Date: 2011-06-22
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, existing camera systems handle high-resolution images such as 4K images and 8K images or images at high frame rates such as 60P / 240P, thereby processing huge amounts of data

Method used

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  • Camera system and image processing method
  • Camera system and image processing method
  • Camera system and image processing method

Examples

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no. 1 example

[0050] 1. First Embodiment (Control of Compression Encoding or Decoding: Example Using Wavelet Transform)

[0051] 2. Second Embodiment (Control of Compression Encoding or Decoding: Example Using Haar Transform)

[0052] 3. Modified example

[0053]

[0054] [Example of image compression encoding using wavelet transform and subband image decoding using inverse wavelet transform]

[0055] The following will refer to Figures 1 to 25 A first embodiment of the present invention will be described.

[0056] In the following embodiments, an example applied to a camera system will be described, and the camera system includes: a camera part 10 for imaging from an image pickup element without RGB full pixels, Bayer arrangement, without RGB full pixels, dual Three R in any of RAW data obtained by an image pickup element of double-density Bayer arrangement, and an image pickup system without RGB full pixels using three image pickup elements having pixels arranged in an oblique direc...

no. 2 example

[0350] [Example of compressively encoding an image using the Haar transform or decoding a subband image using the inverse Haar transform]

[0351] Next will refer to Figures 26A to 28D An example applied to the camera section 10 according to the second embodiment of the present invention will be described.

[0352] As mentioned above, the compression I / F block 105 in combination with the wavelet transform provides the most efficient method of compression. However, not only wavelet transform but also Haar transform which reduces the burden on hardware can realize this method.

[0353]At this time, the compression I / F section 105 subjects every two adjacent pixels in the oblique direction in the image data of the color whose pixel positions alternately deviate from each other to Haar transform in units of two adjacent upper and lower rows. On the other hand, the decompression I / F section 205 decompresses the subband image into colors whose pixel positions alternately deviate ...

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Abstract

Disclosed herein is a camera system including: a camera section including a subband dividing section configured to resolve image data of a color whose pixel positions are alternately shifted from each other into subband images, and a first transmission interface section configured to convert the subband images into a predetermined image signal, and output the image signal via a transmission line; and a camera control section including a second transmission interface section configured to convert the image signal input via the transmission line into the subband images, and an image decompressing section configured to decompress the subband images into the image data and synthesize the subband images into the image data output from the image pickup element.

Description

technical field [0001] The present invention relates to, for example, a camera system and an image processing method suitable for efficient compression encoding of RAW data (raw data) obtained from image pickup elements of various arrangements and decompression of the compression encoded RAW data. Background technique [0002] Image pickup devices using image pickup elements of a Bayer arrangement are generally known in the past. Such an image pickup element captures image light of a subject via a color filter, and outputs an image signal according to the intensity of the image light. Then, the post-processing section subjects the image signal to predetermined processing so that the image pickup device can display the image on a viewfinder or an external display device. [0003] Generally, a camera system for live broadcasting or the like includes a camera section serving as an image pickup device and having an image pickup element, and a CCU (Camera Control Unit) section i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232H04N5/225H03M7/30H04N1/41H04N9/07H04N19/12H04N19/122H04N19/134H04N19/136H04N19/146H04N19/186H04N19/34H04N19/42H04N19/436H04N19/60H04N19/63H04N19/635H04N19/80H04N19/90H04N19/91
CPCH04N19/00521H04N7/26159H04N7/26079H04N19/00169H04N19/00818H04N19/0009H04N5/23203H04N7/26393H04N9/045H04N7/26755H04N19/63H04N19/124H04N19/146H04N19/436H04N23/66H04N23/843H04N25/134
Inventor 杉山晃
Owner SONY CORP
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