Digital Image Signal Processing for Angle of View Preview
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Professional photographers face inconvenience when switching lenses to achieve desired focal lengths, as they must constantly check and change lenses to adapt to different angles of view, which can be time-consuming and inefficient.
Innovation Solution
A digital image signal processing apparatus capable of selectively mounting interchangeable lenses, which generates and displays images with different angle of view information, allowing photographers to preview and select the appropriate lens for desired images by performing display image processing to reduce or enlarge the input image, and optionally synthesizing images with black frames or on-screen displays to represent alternative angles of view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a photographer uses multiple interchangeable lenses with different focal lengths to achieve desired angle of view information, then the photographer can obtain high quality pictures of various scenes, but the photographer must frequently check and change lenses which is time-consuming and inefficient
Solution Approach 1:
The patent creates a virtual copy of the imaging process by capturing an image with the currently mounted lens and then generating synthetic display images that simulate what would be captured with different focal lengths. This allows photographers to preview multiple angle of view options without physically changing lenses, eliminating time loss while maintaining adaptability.
Solution Approach 2:
The display image processing unit acts as an intermediary between the captured image and the photographer's decision-making. It processes the input image to generate multiple display images with different angle of view information, serving as a mediator that eliminates the need for direct lens changes while providing the same informational benefit.
2Reliability
If a photographer uses a prime lens with fixed focal length to ensure good image quality, then image quality is improved, but the photographer must change location to photograph distant subjects which reduces operational efficiency
Solution Approach 1:
The system dynamically adjusts the display image to simulate different focal lengths from the same fixed lens position. By processing the input image to create display images with various angle of view information, it enables the photographer to virtually change focal length without moving location, maintaining both image quality and operational ease.
3Loss of information
If the photographer wants to check angle of view information for different lenses before selecting one, then the photographer can make informed decisions, but the process of checking each lens becomes complex and time-consuming
Solution Approach 1:
Instead of physically checking multiple lenses, the system creates virtual copies of the image with different angle of view information processed from a single capture. This simplifies the information gathering process from complex physical lens changes to simple display selection.
Solution Approach 2:
The display image processing unit serves multiple functions: it captures the image, processes it to simulate different focal lengths, and presents multiple angle of view options all through a single device and operation, eliminating the need for multiple lens checks.
Data Source
AI summary
A digital image signal processing apparatus having an angle of view preview function, a method of controlling the digital image signal processing apparatus, and a recording medium having embodied thereon a computer program for executing the method. Accordingly, a display image displaying at least one piece of angle of view information that is different from angle of view information of a currently mounted interchangeable lens is generated by performing image signal processing, and the display image is displayed. Accordingly, a photographer is informed about angle of view information needed to capture a desired image, and the photographer may easily select an interchangeable lens having desired angle of view information.