Image processing device, image processing method, and program

一种图像处理装置、帧图像的技术，应用在图像数据处理、图像增强、图像分析等方向，能够解决不能够期待得到事前信息等问题

Inactive Publication Date: 2009-09-23
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010]However, the shooting conditions and shooting environment of the video shot with a video camera etc. will vary depending on the photographer and the timing of the shooting, so the above layout cannot be expected prior information

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0087] This embodiment is one of the modes in which the inclination is detected from the frame image data to be processed as a correction parameter, and image processing is performed on the frame image data to be processed using the correction parameter. This image processing includes rotational transformations.

[0088] figure 1 It is a figure which shows the usage form of the imaging device to which the image processing apparatus of this invention is applied. As shown in the figure, a user can carry the video camera 100 incorporating the image processing device of the present invention on his or her body using a sling, and can perform photography based on hands-free photography techniques. The housing of the video camera 100 includes a card slot 101 for attaching and detaching a semiconductor memory card as a recording medium, a recording button 102 for accepting an operation to start shooting, and a stop button 103 for receiving an operation to stop shooting. By pressing ...

no. 2 Embodiment approach

[0178] Figure 12 It is a diagram showing the hardware configuration of the image processing device according to the second embodiment of the present invention. exist Figure 11 in, right with figure 1 The same symbols are used for the same constituent elements, and explanations are omitted.

[0179] Such as Figure 11 As shown, the difference between the second embodiment of the present invention and the first embodiment is that an inertial sensor 70 capable of detecting an angular component in the roll axis direction is added, and the output from the sensor 70 is used by the line segment detection unit 2 . An acceleration sensor, a gyro sensor, etc. are mentioned as an inertial sensor which can detect the angular component of this roll axis direction.

[0180] The inertial sensor 70 acquires the angle in the roll axis direction at the time when the imaging device 10 captures the frame image t. The value at this time may be an original value output from the inertial sens...

no. 3 Embodiment approach

[0187] This embodiment is an improvement in the case where the coordinate system where the camera holder is located moves by itself. As in the case where the camera holder rides on a moving object such as a car, when the coordinate system where the camera holder is located moves by itself, the movement amount of the area where the structure exists may be relatively large. In this case, if the region used for tilt correction is determined only based on the magnitude of the motion vector as in the first embodiment, it may be misjudged that the region where the structure exists is the foreground region. The feature quantity of the region is used to obtain the inclination angle. In this case, it cannot be dealt with by the above-mentioned configuration in which the inclination angle is estimated from the background area.

[0188] Therefore, in the present embodiment, the histograms of degrees representing the range of angles existing in the image data are obtained for the distant...

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Abstract

A motion vector calculation unit 4 calculates inter-frame movement amounts. A masked region specification unit 5 separates the entire edge image of frame feature data into an edge image showing relatively large movement amounts and an edge image showing relatively small movement amounts. The masked region specification unit 5 then specifies the edge image showing relatively large movement amounts as a region to be masked. This way, a correction parameter is detected from a region other than the masked region. When the correction parameter is a slang angle, a slant correction unit 7 performs slant correction on a frame picture obtained by an image sensor.

Description

technical field [0001] The present invention belongs to the technical field of image correction processing. Background technique [0002] Image correction processing refers to a technique of detecting correction parameters from frame image data to be processed and correcting the image data using the correction parameters. There are known image tilt correction techniques and image shake correction techniques. [0003] The image tilt correction technique is a technique of estimating a tilt angle from a reference angle and correcting an image based on the tilt angle. The shake correction technique is a technique for correcting shake at the time of shooting by fixing the background area in the same position in a plurality of frames of image data captured continuously. [0004] Existing tilt correction technologies are widely used in the industrial field of optical reading devices such as scanners and copiers, but in recent years researches have been conducted on their applicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232H04N1/387G06T3/60G06T7/60H04N5/225
CPCH04N19/00151H04N19/00157H04N19/00066G06T7/2006H04N7/26058H04N7/26127H04N19/00018H04N7/26276H04N5/23248H04N7/26138H04N7/26765H04N19/0026G06T7/0042H04N19/00587H04N7/26021G06T2207/30196H04N19/139H04N19/51H04N19/103H04N19/117H04N19/14H04N19/17G06T7/73G06T7/215H04N23/68
Inventor 山田整
Owner PANASONIC CORP
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