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Image processing device, imaging device, and image processing method

An image processing device and image processing technology, which are applied in the directions of image data processing, image data processing, image enhancement, etc., can solve the problems of depth data accuracy decline, achieve the effect of reducing processing load and suppressing the decline of accuracy

Inactive Publication Date: 2014-01-01
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

That is, in the method of Patent Document 1, although the processing load can be reduced when generating the depth data, the accuracy of the depth data is greatly reduced.

Method used

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  • Image processing device, imaging device, and image processing method
  • Image processing device, imaging device, and image processing method
  • Image processing device, imaging device, and image processing method

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Embodiment approach 1

[0061] figure 1 It is a block diagram showing the functional configuration of the image processing device 10 according to the first embodiment. The image processing device 10 generates depth data of the first image by using the first image and the second image (for example, stereoscopic image) captured from different viewpoints. The first image and the second image are, for example, stereoscopic images (images for the left eye and images for the right eye).

[0062] Such as figure 1 As shown, the image processing device 10 according to this embodiment includes a parallax value calculation unit 11 , a segmentation unit 12 , and a depth data generation unit 13 .

[0063] The parallax value calculation unit 11 detects a corresponding pixel in the second image for each representative pixel in the first image, thereby calculating a parallax value between the representative pixel and the corresponding pixel. That is, the parallax value calculation unit 11 calculates a parallax va...

Embodiment approach 2

[0083] Next, Embodiment 2 will be described with reference to the drawings.

[0084] Figure 4 It is a block diagram showing the functional configuration of the image processing device 20 according to the second embodiment. The image processing device 20 according to the present embodiment includes a feature point calculation unit 21, an alignment processing unit 22, a parallax value calculation unit 23, a segmentation unit 24, a segment combination unit 25, a depth data generation unit 26, and an image processing unit. 27.

[0085]The feature point calculation unit 21 calculates feature points of the first image as representative pixels. Specifically, the feature point calculating section 21 calculates feature points using the feature quantities extracted by the feature quantity extraction method. As a feature quantity extraction method, for example, reference 1 (David G. Lowe, "Distinctive image features from scale-invariant key points", International Journal of Computer ...

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Abstract

An image processing device (10) for generating a set of depth data by using a first image and a second image captured at a different view point from one another is provided with: a parallax value calculation unit (11) for calculating the parallax values of representative pixels, which are a portion of the pixels within the first image, on the basis of the positional relationship between each representative pixel and a pixel corresponding to the respective representative pixel within the second image; a segmentation unit (12) for dividing the first image into multiple segments on the basis of the similarities between pixel values; and a depth data generation unit (13) for generating, for each segment, a set of depth data showing the depth corresponding to each segment by identifying the parallax value of each segment on the basis of the parallax values of the representative pixels contained in the respective segments.

Description

technical field [0001] The present invention relates to an image processing device, an imaging device, and an image processing method for generating depth data using a first image and a second image captured from mutually different viewpoints. Background technique [0002] In recent years, 3D displays that display 3D images have come into widespread use. In addition, there is an increasing demand for 3D cameras that capture 3D images displayed on such 3D displays. In a typical 3D camera, stereoscopic images are captured using two sets of lenses and sensors. [0003] There is known a method of generating depth data representing the depth of a stereoscopic image using a stereoscopic image captured by such a 3D camera. For example, depth data can be generated by detecting corresponding points for each pixel in the stereoscopic image and calculating a parallax value between the corresponding points. Furthermore, various processing can be performed on the stereoscopic image us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/00
CPCG06T1/00G06T2207/10012G06T2207/10024G06T7/593G06T7/11G06T15/08
Inventor 石井育规
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD