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Image processing device and image processing method

An image processing device and technology for color images, applied in image data processing, image data processing, image communication, etc., can solve the problems of lack of public technology, increased cost, large buffer capacity and frequency band, etc.

Inactive Publication Date: 2011-10-05
ACUTELOGIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0017] However, in image processing devices using single-board image sensors, image deformation has been performed on color images (3parm / pix) in the past, so buffers require large capacity and bandwidth, and there is a risk of increased power consumption and cost.
In addition, the technology of Patent Document 3 discloses the technology of compressing the mosaic image before generating the color image in order to reduce the size of the hardware, but it does not disclose the technology of using this technology to effectively deform the image and generate the color image, including Including image warping and color generation, there is room for invention

Method used

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  • Image processing device and image processing method

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no. 1 approach

[0049] Next, a first embodiment of an image processing device and an image processing method according to the present invention will be described based on the drawings.

[0050] figure 1 is a block diagram showing the configuration of the imaging device 1 of the first embodiment to which the image processing device and the image processing method of the present invention are applied, figure 2 It is a function explanatory diagram of the color plane decomposition unit and the color generation unit in the first embodiment, (a) is a diagram showing a color mosaic image of a Bayer arrangement output from the imaging unit 2, (b), (c), (d) and (e) are diagrams showing the arrangement of the R plane, Gr plane, Gb plane, and B plane generated by the color plane decomposition unit, respectively, and (f) is an explanatory diagram when interpolating pixel values ​​at sampling coordinates.

[0051] also, image 3 is an explanatory diagram of image deformation from a color mosaic image ...

no. 2 approach

[0123] Next, use Figure 5 ~ Figure 8 A second embodiment of the present invention will be described. Figure 5 It is a block diagram showing the configuration of an imaging device 1A according to a second embodiment of the image processing device and image processing method of the present invention, Figure 6 is a flowchart showing the procedure of color image generation in the image processing device and image processing method of the second embodiment, Figure 7 yes means Figure 6 Flowchart for details of the sequence of compression and cache controllers.

[0124] The imaging device 1A in the second embodiment basically has the same configuration as the imaging device 1 shown in the first embodiment, so the same components are given the same reference numerals and detailed descriptions are omitted, and the characteristic parts will be described below.

[0125] The image processing device 100A in the imaging device 1A includes: a compression unit 20 that compresses the a...

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Abstract

The invention provides an image processing device and an image processing method capable of saving a memory capacity of a buffer or a band so that low power consumption and low costs can be realized when a color image is generated from a mosaic image outputted from an image picking-up element with a single plate color filter and an image modification processing is carried out. An image processingdevice is provided with a buffer memory (21) that stores a color mosaic image outputted from an image picking-up element (5) and a demosaic unit (28) that carries out an image modification for the color mosaic image outputted from the buffer memory (21) and generates a color image which has a plurality of color information data for every pixel.

Description

technical field [0001] The present invention relates to an image processing device and an image processing method for an object image captured by an electronic imaging unit, and in particular to output via a single-plate imaging element with a color filter, and each pixel is composed of only a single color An imaging device that generates a color image having brightness information of a plurality of colors in each pixel from a mosaic image of brightness information and performs image deformation processing. Background technique [0002] Conventionally, in an imaging device such as a digital camera, an image processing device and an image processing device for generating an image signal by imaging a subject image through a lens on an imaging element and photoelectrically converting the subject image by means of the imaging element are known. method. [0003] In addition, there is an image processing device and an image processing method in which a plurality of photoelectric ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/64H04N11/02H04N23/12G06T1/00H04N1/48H04N1/60H04N101/00
CPCH04N9/045H04N2101/00H04N9/07H04N23/843H04N23/12H04N25/134
Inventor 沢田保宏增田孝
Owner ACUTELOGIC
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