Imaging Apparatus Resolution Ratio Adjustment for Anamorphic Lenses
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Solution Overview
Problem
Existing imaging apparatuses require post-processing to achieve images corresponding to anamorphic lenses, which can be cumbersome and inefficient.
Innovation Solution
An imaging apparatus with a processor that determines and adjusts the resolution ratio of images based on the focal lengths of attached lenses, performing pixel thinning-out readout to match the focal length ratio, allowing for higher resolution images without the need for post-processing, and includes an optical filter to manage ray separation and suppress false signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If post-processing is performed to achieve images corresponding to anamorphic lenses, then image quality can be improved, but operational complexity and processing time increase
Solution Approach 1:
The patent applies preliminary action by performing resolution ratio adjustment during the image capture process rather than as a separate post-processing step. The processor determines the focal length ratio of the attached lens and adjusts the resolution ratio of the captured image accordingly in real-time, eliminating the need for subsequent post-processing operations while maintaining image quality.
2Manufacturing precision
If post-processing is performed to achieve images corresponding to anamorphic lenses, then image quality can be improved, but processing time increases
Solution Approach 1:
The resolution ratio adjustment is performed preliminarily during image capture. The processor obtains the focal length ratio information, determines the appropriate resolution ratio, and applies the adjustment immediately, thereby eliminating the time loss associated with post-processing while ensuring high image quality.
3Productivity
If anamorphic lens images are captured without resolution ratio adjustment, then capture speed is maintained, but image quality corresponding to the lens characteristics is lost
Solution Approach 1:
The patent performs resolution ratio adjustment as a preliminary action during the image capture process itself. The processor determines the focal length ratio of the attached anamorphic lens and adjusts the resolution ratio of the captured image in real-time, thereby maintaining capture speed while ensuring that the image quality reflects the lens characteristics without requiring separate post-processing.
4Manufacturing precision
If pixel thinning-out readout is performed to match focal length ratio, then resolution ratio of raw image is improved, but readout complexity increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the readout parameters of the imaging sensor based on the focal length ratio of the attached lens. The processor determines the appropriate pixel thinning-out pattern (e.g., thinning out every Nth pixel in specific directions) to achieve the desired resolution ratio that matches the anamorphic lens characteristics, thereby improving resolution while managing readout complexity through systematic parameter adjustment.
Data Source
AI summary
An imaging apparatus includes: an imaging sensor; a lens mount to which a lens is attached; and a processor is configured to read out an imaging signal from the imaging sensor and generate a raw image. The processor is configured to determine a length of a second focal length in a second direction which intersects with an extending direction of an optical axis of the lens and a first direction which intersects with the extending direction, relative to a first focal length in the first direction, and make a resolution ratio, which is a ratio of a resolution of the raw image in the first direction to a resolution of the raw image in the second direction, higher than a resolution ratio of the imaging sensor in a case where the second focal length is longer than the first focal length.