Live View Display Switching for Continuous Shooting Tracking

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Solution Overview

Problem

Existing BOF live view display technologies face difficulties in tracking subjects during continuous shooting, particularly under conditions with long second exposures, leading to user discomfort and potential hand shake due to sudden frame rate changes and prolonged image display intervals.

Innovation Solution

An image processing apparatus and method that allows switching between BOF live view display and black out live view display based on photographing conditions, ensuring continuous and appropriate live view display by alternately displaying captured images and inter-frame images without interruptions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If BOF live view display is used to continuously display captured images without black out periods, then the user can track the subject without losing it during continuous shooting, but the frame rate becomes inconsistent and hand shake occurs during long second exposure shooting

Engineering Contradiction:
Improvesubject tracking continuityVSAvoidhand shake control
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system dynamically switches between BOF live view display and black out live view display modes based on the shooting conditions. When the second exposure time is long, it transitions to black out display mode to maintain consistent frame rate and prevent hand shake, while for short exposure times it uses BOF mode for continuous subject tracking. This dynamic adaptation resolves the contradiction by adjusting the display mode according to the specific shooting scenario.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The control section changes the display mode parameter based on the second exposure time parameter. When the second exposure time exceeds a predetermined threshold, the system changes from BOF display mode to black out display mode, thereby adjusting the frame rate characteristics to match the exposure requirements and prevent hand shake while maintaining subject tracking capability.

Inventive Principle:
Principle #35Parameter changes

2Loss of information

If BOF live view display is used for continuous shooting with long second exposure, then the subject remains visible on display, but the frame rate becomes inconsistent causing user difficulty in tracking

Engineering Contradiction:
Improvesubject visibilityVSAvoidframe rate consistency
Core Design Contradiction:
Loss of informationVSSpeed

Solution Approach 1:

The system dynamically adjusts the display mode based on shooting conditions. For long second exposure shooting, it switches to black out display mode where the display is turned off during exposure periods, ensuring consistent frame rate for displayed images. This dynamic adjustment maintains subject visibility through proper timing while ensuring frame rate consistency for smooth tracking.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The black out display mode implements periodic display cycles where the display is turned off during long exposure periods and turned on during inter-frame periods. This periodic action ensures that displayed images maintain consistent frame rate while the subject remains trackable through the rhythmic display pattern, resolving the contradiction between visibility and frame rate consistency.

Inventive Principle:
Principle #19Periodic action

3Adaptability or versatility

If the display mode is fixed as BOF live view display, then continuous subject tracking is enabled, but the system cannot adapt to different shooting conditions such as long second exposure

Engineering Contradiction:
Improveshooting condition adaptationVSAvoiddisplay mode control
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The live view display system is designed to perform multiple functions by supporting both BOF display mode and black out display mode. The control section automatically selects the appropriate mode based on the second exposure time, making the system universal enough to handle various shooting conditions including long second exposure, short second exposure, and continuous shooting scenarios without requiring manual intervention.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system automatically determines the appropriate display mode based on the shooting conditions without requiring user input. The control section monitors the second exposure time and autonomously switches between BOF and black out display modes, enabling the system to serve itself by adapting to different shooting scenarios and providing optimal display performance for each condition.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS12489967B2Image processing apparatus and method
Publication Date: 2025.12.02 SONY GROUP CORP
  • US12489967B2 patent drawing
  • US12489967B2 patent drawing
  • US12489967B2 patent drawing

AI summary

Provided is the image processing apparatus includes a control section that selects, in a case in which multiple captured images for recording are continuously captured, whether to cause black out-free live view display for sequentially displaying one of the captured images and one or multiple inter-frame images that are captured between capturing of the captured image and capturing of next captured image and that are not for recording, to be carried out, or cause black out live view display for alternately providing a backout display period in which no image is displayed and a display period in which at least the inter-frame images are sequentially displayed, to be carried out. The present technology can be applied to a camera.