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Electronic image pickup apparatus and electronic image pickup method

A camera device and electronic technology, applied to static cameras, signal generators with a single pick-up device, TV, etc., can solve the problem of memory storage capacity shortage and achieve the effect of reducing the amount of data

Inactive Publication Date: 2009-11-11
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is possible to strain the storage capacity of the memory

Method used

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  • Electronic image pickup apparatus and electronic image pickup method
  • Electronic image pickup apparatus and electronic image pickup method
  • Electronic image pickup apparatus and electronic image pickup method

Examples

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no. 1 Embodiment approach

[0033] figure 1 It is a block diagram showing the configuration of an example of the electronic imaging device according to the first embodiment of the present invention. figure 1 The example in is a single-lens reflex type digital camera constituted by a lens unit 100 and a camera body 200 which are detachably connected to each other.

[0034] The lens unit 100 as an optical lens is provided with an optical system 101 composed of a focus lens, a diaphragm, a variable magnification lens, etc., and focuses an image (subject image) from an unillustrated subject in the camera body. on the imaging element 201a. here, in figure 1 The illustration is omitted in , and each lens constituting the optical system 101 is driven by a not-shown lens driving mechanism, and the diaphragm is driven by an not-shown diaphragm driving mechanism.

[0035] Furthermore, a microcomputer 102 and a flash memory 103 are provided in the lens unit 100 . The microcomputer 102 controls each part in the ...

no. 2 Embodiment approach

[0096] Next, a second embodiment of the present invention will be described. In the first embodiment, it was exemplified that the color conversion circuit 204c is a circuit that linearly converts the output of the WB correction circuit 204b using a predetermined color matrix. However, the color conversion circuit does not necessarily have to be a circuit that performs linear conversion, and may be a circuit that performs nonlinear conversion. The second embodiment shows an example in which the color conversion circuit 204c can cope even if it is a circuit that performs nonlinear conversion. That is, the basic configuration of the electronic imaging device of the second embodiment is the same as figure 1 Same as shown. However, the difference is that the color conversion circuit 204c is a circuit for nonlinearly converting the output of the WB correction circuit 204b according to a predetermined lookup table.

[0097] Next, white balance correction and color conversion of ma...

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Abstract

The present invention provides an electronic imaging device and such an electronic imaging method. The electronic imaging device and electronic imaging method can reduce the amount of data stored in the memory, and can obtain the same color reproduction during still image shooting and live view display through simple calculations. The spectral sensitivity characteristic Es(λ) of the imaging element corresponding to the still image shooting is stored in the flash memory (201c). When performing image processing during live view display, after white balance correction is performed using the white balance gain WBs for still images calculated according to the spectral sensitivity characteristic Es(λ), multiply the color matrix CMXs for the still image by the correction matrix CMX12s And the color matrix CMX1 used for the real-time viewfinder display is used for color conversion.

Description

technical field [0001] The present invention relates to an electronic imaging device and an electronic imaging method using a color imaging element, and more particularly to an electronic imaging apparatus and an electronic imaging method capable of performing still image photography and live view display using a color imaging element. Background technique [0002] As a conventional electronic imaging device, for example, a digital camera (hereinafter referred to as a camera as appropriate) is provided with a plurality of color imaging elements having different drive modes. For example, in a digital camera, there are a drive mode for still image shooting and a drive mode for live view display. In the drive mode for still image shooting, in order to give priority to the image quality of the recorded still image, all The output of the effective pixels of the imaging element. On the other hand, in the so-called live view display driving mode in which a display unit such as an ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/04H04N9/64H04N9/73H04N1/60H04N9/03H04N23/12H04N101/00
CPCH04N5/23245H04N9/045H04N9/735H04N23/667H04N23/843H04N25/134H04N23/88
Inventor 小野村研一
Owner OLYMPUS CORP
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