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Mobile information acquisition device, mobile information acquisition method, and recording medium

A technology for moving information and obtaining devices, which is applied in image communication, image enhancement, instruments, etc., and can solve problems such as reduced accuracy of shake detection and difficulty in extracting feature points

Active Publication Date: 2020-06-09
CASIO COMPUTER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the camera captures a night scene or a plain wall, or when the camera moves, it may be difficult to extract feature points, and the accuracy of shake detection may decrease.

Method used

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  • Mobile information acquisition device, mobile information acquisition method, and recording medium
  • Mobile information acquisition device, mobile information acquisition method, and recording medium
  • Mobile information acquisition device, mobile information acquisition method, and recording medium

Examples

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Embodiment Construction

[0017] The following describes an imaging device as a movement detection device according to an embodiment of the present invention. The imaging device 100 according to the embodiment of the present invention is as figure 1 As shown, it includes a control unit 102, a memory 104, an operation unit 106, an imaging unit 108, a sensor 110, and a display unit 112. The imaging device 100 is equipped, for example, on the head of a user, and takes an image of the front of the user.

[0018] The control unit 102 includes a CPU (Central Processing Unit), executes software processing and execution following a program stored in the memory 104, and functions to realize various functions included in the imaging device 100.

[0019] The imaging control unit 122 in the control unit 102 controls the imaging performed by the imaging unit 108 in accordance with the operation of the operation unit 106 by the user or the like. The image input unit 124 receives an image signal obtained by imaging by th...

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Abstract

The present invention provides a movement information acquisition device, wherein a movement detection unit (126) calculates a shake matrix H(t) used in coordinate transformation for shake correction. At this time, the motion detection unit (126) calculates MV (motion vector) for each block obtained by dividing the frame, and excludes MV-B (subject MV) among the MVs. In addition, the motion detection unit (126) calculates the shake matrix H_mv expressing the shake between frames based on the MV, but if the shake matrix H_mv cannot be calculated, it calculates and adjusts to express the shake corresponding to the motion of the imaging unit (106). The dithering matrix H_sensor of is used as the dithering matrix H(t).

Description

Technical field [0001] The present invention relates to a mobile information acquisition device and a mobile information acquisition method. Background technique [0002] In the imaging device, as described in Japanese Patent Application Laid-Open No. 2009-301181, there is a proposal that has a function of blur correction. When performing shake correction, the imaging device captures a plurality of frames that are continuous in time, and extracts feature points in these frames. Furthermore, the imaging device estimates the amount of shake between frames based on the motion vector (MV: Motion Vector) corresponding to the movement of the feature points between frames, and based on the amount of shake, performs image deformation processing to align the feature points between frames . [0003] However, when the imaging device captures night scenes or plain walls, or the imaging device moves, it may be difficult to extract feature points, and the accuracy of the shake detection may de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232
CPCH04N23/6811H04N23/682H04N23/6812G06T7/20G06T2207/30244H04N23/683H04N23/6845
Inventor 真锅佳嗣
Owner CASIO COMPUTER CO LTD