Camera Zoom Magnification Control for Intuitive View Switching

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Solution Overview

Problem

In remote monitoring systems, users face difficulties in intuitively determining the photographing direction and zoom magnification of cameras, especially when switching between multiple camera views, leading to time-consuming adjustments to achieve the desired viewing angle.

Innovation Solution

A camera control apparatus that includes an image switching section, a zoom magnification control section, and an image display section, which temporarily adjusts the zoom magnification to a wider angle upon switching, allowing users to intuitively understand the camera's orientation and magnification by displaying the image at the new setting before returning to the original magnification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the zoom magnification is maintained at a high level when switching between camera views, then the user can observe detailed portions of the image, but it becomes difficult to intuitively determine the camera's photographing direction and current view scope

Engineering Contradiction:
Improveimage detail observationVSAvoidcamera orientation understanding
Core Design Contradiction:
Measurement precisionVSDifficulty of detecting and measuring

Solution Approach 1:

The system performs preliminary action by automatically adjusting the zoom magnification to a reference (wider) level immediately when switching between camera views. This preliminary adjustment occurs before the user needs to assess the camera orientation, ensuring the user can intuitively understand the photographing direction and current view scope. After the user completes their assessment, the system then restores the original zoom magnification level.

Inventive Principle:
Principle #10Preliminary action

2Difficulty of detecting and measuring

If the zoom magnification is adjusted frequently to help users understand camera orientation, then the user can intuitively determine photographing direction, but the time required for switching and adjusting cameras increases

Engineering Contradiction:
Improvecamera orientation understandingVSAvoidcamera switching time
Core Design Contradiction:
Difficulty of detecting and measuringVSLoss of time

Solution Approach 1:

The system applies periodic action by automatically adjusting the zoom magnification to the reference level only during the specific period when switching between camera views. This temporary adjustment occurs periodically at switch moments, providing users with intuitive orientation understanding precisely when needed. After a predetermined time period following the switch, the system automatically restores the original zoom magnification, minimizing the duration of the adjustment state and reducing overall time loss.

Inventive Principle:
Principle #19Periodic action

3Adaptability or versatility

If multiple camera images are displayed simultaneously to allow users to view different locations, then users can monitor multiple areas, but the display region for each camera becomes small making detailed observation difficult

Engineering Contradiction:
Improvemulti-location monitoringVSAvoidimage detail observation
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The system applies local quality by making different parts of the viewing experience have different zoom magnification levels. When multiple camera images are displayed simultaneously, the system automatically adjusts the zoom magnification to a reference (wider) level for each camera view, allowing users to understand camera orientations across multiple locations. This local adjustment ensures that each camera's display region provides adequate contextual information while maintaining the ability to monitor multiple areas.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS7551200B2Camera controller and zoom ratio control method for the camera controller
Publication Date: 2009.06.23 PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
  • US7551200B2 patent drawing
  • US7551200B2 patent drawing
  • US7551200B2 patent drawing

AI summary

Camera control apparatus enabling a user to intuitively understand a photographing direction and zoom magnification of a camera at the time of switching over an image, and enabling camera control to be started immediately. At camera control apparatus (120), camera image switching section (121) switches over images of cameras instructed to be switched over to by a user. Zoom magnification control sections (124, 125, 126) acquire zoom magnification of a camera instructed to be switched over to, set zoom magnification of a camera before switching of the camera image switching section (121) to a reference magnification lower than the acquired zoom magnification, and change zoom magnification of the camera after switching from the reference magnification to the acquired zoom magnification. Image display section (122) then displays the image of the camera image switching section (121) has switched over to.