Autofocusing Range Setting for Continuous Shooting Memory
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current digital cameras face challenges in accurately focusing on a desired subject when multiple subjects are present at different distances, leading to wasted images due to incorrect focusing and high memory requirements for continuous shooting, especially with high-pixel image sensors.
Innovation Solution
An imaging device with an autofocusing section that sets a predetermined photographing distance range based on autofocusing evaluation values, allowing continuous shooting at multiple focused positions while displaying the focused area and range, and adjusting the range according to user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous shooting is performed at multiple focused positions to ensure capturing the desired subject, then the probability of capturing the desired subject increases, but the number of images stored increases significantly, requiring high-capacity buffer memory
Solution Approach 1:
The patent displays the photographing distance range and focused position information to the user before continuous shooting begins. This allows the user to confirm whether the shooting parameters will capture the desired subject, enabling preliminary judgment and avoiding unnecessary shooting that would waste buffer memory capacity
Solution Approach 2:
The system provides feedback to the user by displaying the current focused position and photographing distance range during the AF operation. This feedback mechanism allows the user to monitor the focusing process and determine whether the desired subject is within the photographing range, thereby avoiding storage of unnecessary images
2Reliability
If all images in the photographing distance range are photographed to ensure the desired subject is captured, then the completeness of captured subjects improves, but the processing time and memory requirements increase significantly
Solution Approach 1:
The patent performs AF operation and displays the photographing distance range and focused position before continuous shooting. This preliminary action allows the user to confirm whether the desired subject is within the shooting range, avoiding unnecessary shooting and subsequent processing of unwanted images
Solution Approach 2:
The system extracts and displays only the relevant information (focused position and photographing distance range) to the user before shooting. This allows the user to make an informed decision about whether to proceed with shooting, thereby extracting only the necessary images for processing and storage
3Adaptability or versatility
If the photographing distance range is set wide to cover multiple subjects at different distances, then the versatility of capturing different subjects improves, but the number of images required to ensure focused quality increases
Solution Approach 1:
The patent displays the photographing distance range and focused position information before continuous shooting begins. This allows the user to assess whether the wide distance range will capture the desired subject with acceptable focus quality, enabling preliminary judgment and avoiding unnecessary shooting of images that would not meet quality requirements
Data Source
AI summary
An imaging device includes an autofocusing section, which moves at least a part of an imaging lens as a focusing lens, and focuses the imaging device on a subject, a photographing distance range setting section, which sets a predetermined distance range including a subject distance to the subject obtained by the autofocusing section as a photographing distance range for photographing, a continuous shooting section, which continuously photographs at a plurality of focused positions in the photographing distance range while moving and stopping the focusing lens according to input of a photographing instruction, and a display section, which displays an image of the subject focused by the autofocusing section and the photographing distance range set by the photographing distance range setting section.