Image processing device, imaging device, control method, and program

The image processing apparatus dynamically switches between feature point and template matching methods based on situational information to achieve efficient and accurate subject tracking, addressing issues of varying imaging conditions and power consumption.

JP7875020B2Active Publication Date: 2026-06-17CANON KK
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
CANON KK
Filing Date
2022-05-06
Publication Date
2026-06-17

AI Technical Summary

Technical Problem

Existing image tracking methods face challenges in achieving suitable tracking accuracy and efficiency due to varying imaging conditions and subject states, leading to excessive calculation and power consumption.

Method used

An image processing apparatus that switches between feature point matching and template matching methods based on situational information, such as brightness, to optimize tracking performance while minimizing power consumption.

Benefits of technology

Enables optimal subject tracking by adapting the matching method to imaging conditions and subject states, ensuring accurate and efficient tracking with reduced power consumption.

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Abstract

To perform suitable subject tracking by switching matching methods according to an imaging situation and the state of a subject.SOLUTION: An image processing apparatus tracks an image of a predetermined subject included in an input picked-up image, and the image processing apparatus has: first acquisition means that acquires the picked-up image; tracking means that executes tracking processing of identifying the position of the image of the predetermined subject included in the picked-up image, the tracking means including first tracking means and second tracking means each executing the tracking processing in a different matching method; second acquisition means that acquires situation information indicating at least one of the state of the predetermined subject and the imaging situation of the picked-up image; and control means that, based on the situation information, switches between the first tracking means and the second tracking means to execute the tracking processing on the picked-up image acquired by the first acquisition means. The matching method adopted for the first tracking means consumes less power related to the execution of the tracking processing than the matching method adopted for the second tracking means.SELECTED DRAWING: Figure 1
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