Image Pickup Apparatus Mode Switching for Object Detection
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Solution Overview
Problem
Existing image pickup apparatuses for security monitoring require the image pickup range to remain unchanged to accurately detect objects, as changes in the range, such as panning, tilting, or zooming, result in erroneous object detection, and updating the background image is necessary, leading to incorrect identification of previously detected objects as new background images.
Innovation Solution
An image pickup apparatus with a control unit that manages two modes: one for changing the image pickup range without affecting object detection and another for processing and trimming image data to maintain consistent angles of view during object detection, allowing for range changes without re-obtaining the background image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the image pickup range is changed by panning, tilting, or zooming, then the monitoring coverage or focus is improved, but object detection accuracy deteriorates due to range mismatch with background image
Solution Approach 1:
The patent segments the image processing into two independent paths: one for capturing images with adjustable pickup range (panning, tilting, zooming) and another for maintaining a fixed reference range for background comparison. This allows the system to change monitoring coverage without affecting the reference frame used for object detection, resolving the contradiction between adaptability and detection accuracy.
Solution Approach 2:
The patent creates a copied reference image from the original background image at a specific pickup range, and uses this copied reference for comparison regardless of subsequent pickup range changes. The copy maintains the original spatial characteristics while the captured image can be adjusted, allowing range changes without compromising detection accuracy.
2Adaptability or versatility
If the background image is updated after object detection, then the system adapts to new scenes, but previously detected objects are lost as they become part of the new background
Solution Approach 1:
The patent performs preliminary object detection and records detected objects before updating the background image. By capturing object information in advance and storing it separately, the system can update the background to adapt to new scenes while preserving information about previously detected objects, preventing information loss.
Solution Approach 2:
The patent introduces an intermediary storage mechanism that holds detected object information separately from the background image. This intermediary layer allows the background to be updated for adaptation while the detected object information is preserved in the intermediary storage, preventing the loss of object data during background updates.
3Ease of operation
If the image pickup range is changed during object detection, then the system responds to user requests, but the detection process becomes complex requiring mode switching
Solution Approach 1:
The patent extracts the pickup range adjustment function from the object detection process itself. By separating these functions, the system can handle range changes through a simple mode switch without complicating the core detection algorithm. The detection process remains straightforward by comparing against the stored reference image, while user control flexibility is maintained through the ability to trigger range changes.
Data Source
AI summary
An image pickup apparatus controls a first mode for controlling a function to change an image pickup range of an image pickup unit in response to a received change request of the image pickup range to obtain image data of the changed image pickup range from the image pickup unit and a second mode for controlling an image process of a trimming and a magnification to the image data without performing the change of the image pickup range of the image pickup unit in response to the received change request of the image pickup range to generate image data of the image pickup range corresponding to the change request. The apparatus controls the change of the image pickup range of the image data in response to the change request of the image pickup range to select the first mode when an object detection process is not executed and select the second mode when the object detection process is executed.