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Image processing device

An image processing device and image processing technology, applied in the direction of image communication, TV, color TV parts, etc., can solve the problems of inability to properly extract image groups, large image changes, etc.

Active Publication Date: 2011-09-28
CASIO COMPUTER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the conventional digital camera described above, images are unconditionally extracted when the amount of change between temporally adjacent images is equal to or greater than a threshold value. Therefore, when the shooting situation changes, it may not be possible to properly extract the motion of the subject. problem with group of images
For example, even if the subject is still, if hand shake or flickering of fluorescent lights occurs, the amount of change between images becomes large

Method used

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no. 1 Embodiment approach

[0026] Next, a first embodiment of the present invention will be described with reference to the drawings.

[0027] figure 1 It is a diagram showing the hardware configuration of the image processing device 100 according to the first embodiment of the present invention. The image processing device 100 can be constituted by, for example, a digital camera.

[0028] Image processing device 100 includes optical lens device 1, shutter device 2, actuator 3, CMOS sensor 4, AFE5, TG6, DRAM7, DSP8, CPU9, RAM10, ROM11, liquid crystal display controller 12, liquid crystal display 13, operation part 14 and memory card 15.

[0029] The optical lens device 1 is composed of a focus lens, a zoom lens, and the like. The focus lens is a lens for forming a subject image onto the light-receiving surface of the CMOS sensor 4 .

[0030] The shutter device 2 functions as a mechanical shutter for blocking the light beam incident on the CMOS sensor 4 and also functions as an aperture for adjusting...

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Abstract

The invention provides an image processing device. The interval designation section (222) sequentially alters and designates a movement interval (D) and a non-movement interval (D') in an entire interval. Each time a movement interval (D) is designated, the value determination section (223) determines the average value of the image variation amount array (E) in the movement interval (D) as a function value a of the unit rectangular function (r[x]) and the average value of the image variation amount array (E) in the non-movement intervals (D') as a function value b of the unit rectangular function (r[x]). Each time a movement interval (D) is designated, a degree of divergence (J) between the function values (a, b) and the image variation amount array (E) is calculated by the divergence calculation section (224). Then, only the frame images contained in the movement interval (D) designated when the degree of divergence (J) is at a minimum are extracted.

Description

technical field [0001] The present invention relates to an image processing device, and in particular to a technique for extracting a part of images from a plurality of images. Background technique [0002] Conventionally, there is known a digital camera that extracts an image of a subject's movement from a plurality of consecutive images in time sequence (refer to Japanese Laid-Open Patent Publication No. 2008-78837). Specifically, when a plurality of images obtained by continuous shooting are sequentially read in chronological order, and the change amount of the currently read image from the previous read image is greater than or equal to a predetermined value, the currently read image is displayed. With such a digital camera, only images corresponding to scenes with large subject changes and large subject movements are extracted. [0003] However, in the conventional digital camera described above, images are unconditionally extracted when the amount of change between te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232
Inventor 浜田玲
Owner CASIO COMPUTER CO LTD