Image Capture Display Timing Adjustment for Incongruity Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Image capturing apparatuses face a challenge in displaying images with different acquisition times, leading to a sense of incongruity for the user due to uneven time intervals between exposure start and completion, especially during continuous shooting with automatic focus detection.
Innovation Solution
An image capturing apparatus and method that control exposure and readout of images from an image sensor to adjust the display timing of images with different resolutions, ensuring the second image with lower resolution is displayed after a calculated delay based on the time difference between the first and second image readout periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If image data with different resolutions are successively displayed at a low frame rate, then the time interval between display time periods of LV images is shortened and tracking of the main object is improved, but the image acquisition times will differ between the respective image data, leaving the user with a sense of incongruity
Solution Approach 1:
The patent applies preliminary action by calculating the difference in readout time between first and second image data before display, and pre-setting a display time period for the second image data. This advance preparation ensures that the display timing is adjusted to compensate for the readout time difference, making the time intervals between successive LV image displays uniform and eliminating the sense of incongruity for the user.
2Measurement precision
If high-resolution images are displayed continuously, then image quality is maintained, but the frame rate decreases and tracking responsiveness is reduced
Solution Approach 1:
The patent segments the image display into two types: first image data with high resolution for quality, and second image data with lower resolution for faster readout. By alternating between these two segments and adjusting their display timing, the system achieves both high image quality and high frame rate, improving tracking responsiveness while maintaining visual fidelity.
Solution Approach 2:
The patent changes the resolution parameter of image data depending on the display timing requirements. Second image data is acquired with lower resolution to reduce readout time, while first image data maintains high resolution for quality. The display control unit adjusts the display time period parameter of the second image based on the readout time difference, enabling flexible parameter optimization for both quality and speed.
Data Source
AI summary
There is provided an image capturing apparatus. An image capturing control unit acquires a first image and a second image that require different time periods to read out electrical charge that accumulates due to exposure. A display control unit controls display of an image that is read out from an image sensor on a display unit. The second image has a lower resolution and requires a shorter time period for readout than the first image. The display control unit, when causing the display unit to cyclically display the first image and the second image, sets a first time period from readout of the second image to display start of the second image on the display unit, based on a difference between the time period to read out the first image and the time period to read out the second image.