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Image processing system

A technology of image signal and processing circuit, which is applied to the components of TV system, image communication, TV, etc., and can solve problems such as lack of flexibility, clumsy camera system, and increased hardware resources.

Inactive Publication Date: 2009-02-25
SONY TAIWAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the required hardware resources are increased, thus, the structural equipment of the traditional camera is complicated
[0012] 2. Because of the local control architecture, it is difficult to use a more powerful CPU / DPS to control these types of sequences in the traditional camera structure. The local controller is implemented by dedicated hardware after the system is developed, so it cannot be used again updated deductive method
[0013] 3. Since the data path is strongly fitted to the control unit, it is no longer possible for the control unit to use a more powerful CPU inside or outside the system, so the camera system becomes too clumsy and inflexible
Therefore, the camera system has to be redesigned to meet the constraints on system cost and power consumption.

Method used

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Embodiment Construction

[0023] The present invention relates to image processing. The processing options depicted and described herein by the present invention are only exemplary. Of course, the present invention can be applied to all other unmentioned image processing procedures or different image processing sequences. The main aspects of image processing The functions are listed below:

[0024] - Defect Compensation (Defect Compensation)

[0025] - Mosaic conversion (raw data to RGB / YCrCb)

[0026] - Automatic exposure

[0027] - Automatic white balance

[0028] -auto focus

[0029] -Edge enhancement

[0030] - Gamma compensation

[0031] - Shading Compensation

[0032] - digital zoom

[0033] - Image stabilization

[0034] - Local filtering, including noise reduction

[0035] - Distortion compensation

[0036] - Dynamic range amplification

[0037] -special function

[0038] Since these functions are usually performed by individual functional blocks, these functional blocks are combine...

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Abstract

The invention comprises: data path unit, integrated with non-linear filter unit, color space conversion unit, for use in processing image signals; geometry conversion unit; linear filter unit; gain control unit for processing a original image signal and outputting a processed signal; and control and estimation unit for receiving the original image signal, outputting the processed signal from the data path unit and generating multi adjustment signals respectively sent to the non-linear filter unit in the data path unit, color space conversion unit, geometry conversion unit, linear filter unit and gain control unit.

Description

technical field [0001] The present invention relates to an image processing system, which is implemented as a digital signal processor (DSP) of a camera to provide a flexible data path to support various digital image processing, such as automatic white balance (AWB), automatic Exposure (AE), blemish removal, gamma correction, and more. Background technique [0002] The block diagram of a traditional camera system is simplified as shown in Figure 4. However, there must be a lot of architecture to realize the camera system, for example, the selection of processing, processing order, color space or components to be processed, and other optional functions etc. At the same time, the implementation methods are also diversified. The processing function and sequence in Figure 4 is just a single example, and it is only used to illustrate the camera. [0003] The camera system mainly consists of two parts: one is a data path for signal processing, and the other is a non-data path ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/14
Inventor 尾崎望
Owner SONY TAIWAN