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Image processing device and image processing method

An image processing device and image technology, applied in image data processing, image enhancement, image analysis, etc., can solve problems such as inability to properly derive image tilt angle, difficulty in correcting image tilt, etc.

Inactive Publication Date: 2013-12-18
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, there are cases where the tilt angle of the image cannot be properly derived
In this case, it is difficult to correct the tilt of the image

Method used

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  • Image processing device and image processing method
  • Image processing device and image processing method
  • Image processing device and image processing method

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0076] figure 2 It is a figure showing the structure of the image processing apparatus 100 of this embodiment.

[0077] The image processing device 100 includes an edge detection unit 101 , an edge angle calculation unit 102 , a use angle determination unit 109 , and an inclination angle derivation unit 105 . Furthermore, the use angle specifying unit 109 includes a histogram generating unit 103 and a use angle specifying processing unit 104 .

[0078] image 3 It shows the order in which the image processing device 100 derives the tilt angle. Use below figure 2 and image 3 The flow of deriving the inclination angle will be described.

[0079] First, the edge detection unit 101 detects an edge of an input image ( S101 ). The edge detection unit 101 inputs edge information to the edge angle calculation unit 102 . Next, the edge angle calculation unit 102 calculates an edge angle, which is an edge angle, for each pixel based on edge information ( S102 ).

[0080] Next...

Embodiment approach 2

[0128] Figure 10 It is a figure showing the structure of the image processing apparatus of this embodiment. In this embodiment, the same structures as those in Embodiment 1 are denoted by the same symbols.

[0129] Figure 10 The illustrated image processing device 200 includes an edge detection unit 101 , an edge angle calculation unit 102 , a use angle determination unit 209 , and an inclination angle derivation unit 105 . Furthermore, the use angle specifying unit 209 includes a histogram generating unit 203 , a use angle candidate specifying processing unit 204 , and a use angle specifying processing unit 205 .

[0130] Figure 11 The sequence in which the image processing device 200 derives the tilt angle is shown. Below, use Figure 10 and Figure 11 The flow of deriving the inclination angle will be explained.

[0131] First, the edge detection unit 101 detects an edge of an input image ( S201 ). Then, the edge detection unit 101 inputs edge information to the ...

Embodiment approach 3

[0152] This embodiment confirmably shows the characteristic configuration shown in Embodiment 1 and Embodiment 2. FIG.

[0153] Figure 14 It is a block diagram of the image processing apparatus of this embodiment. Figure 14 The image processing device 400 shown derives the tilt angle of the image. Furthermore, the image processing device 400 includes an edge angle calculation unit 401 , a use angle determination unit 402 , and an inclination angle derivation unit 403 .

[0154] Figure 15 yes means Figure 14 A flowchart of the operation of the image processing device 400 is shown. First, the edge angle calculation unit 401 calculates an edge angle, that is, an edge angle for each of a plurality of pixels in an image, thereby calculating a plurality of edge angles corresponding to a plurality of pixels ( S401 ).

[0155]Next, the use angle specifying unit 402 determines one or more use angles using a plurality of depth values ​​and a plurality of edge angles ( S402 ). ...

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Abstract

An image processing device (400) for deriving an inclination angle of an image, and the device is provided with: an edge angle calculator (401) for calculating a plurality of edge angles corresponding to a plurality of pixels in the image by calculating an edge angle, which is the angle of an edge in each of the plurality of pixels; an available angle identification unit (402) for identifying one or more available angles, each of which is an edge angle and a potential inclination angle, by using the plurality of edge angles and a plurality of depth values, the depth values being values corresponding to the plurality of pixels and each representing the depth of the pixels; and an inclination angle derivation unit (403) for deriving an inclination angle from one or more of the available angles.

Description

technical field [0001] The present invention relates to an image processing device that derives an inclination angle of an image. Background technique [0002] As a technology related to an image processing device that derives an inclination angle of an image, there is a technology described in Patent Document 1. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: International Publication No. 2009 / 001512 [0006] Summary of the invention [0007] The problem to be solved by the invention [0008] However, there are cases where the inclination angle of the image cannot be appropriately derived. In this case, it is difficult to correct the tilt of the image. Contents of the invention [0009] Therefore, the present invention provides an image processing device capable of appropriately deriving an inclination angle of an image. [0010] means of solving problems [0011] An image processing device according to an aspect of the present ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/60H04N5/232
CPCG06T2207/30244G06T7/13G06T7/536G06T7/80H04N5/2628
Inventor 山田整
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD