Imaging Device Row-Based Time Information Generation
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Solution Overview
Problem
Existing imaging technologies can only add one piece of time information to one frame of a motion image, making it impossible to obtain time information for processing timings of pixel signals on different rows, limiting the accuracy of capturing information.
Innovation Solution
An imaging device with a row scanning unit that scans pixels on a row basis and an output unit that provides first and second time information corresponding to different processing timings of pixel signals on multiple rows, allowing for accurate time information generation and addition to image data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If one piece of time information is added to one frame of motion image based on prior art, then the capturing information is recorded, but time information corresponding to processing timing of pixel signals on different rows cannot be obtained
Solution Approach 1:
The patent divides the single time information for the entire frame into multiple time information values, each corresponding to different rows of pixel signals. The row scanning unit processes pixels row by row, and the output unit generates distinct time information for each row, thereby segmenting the time measurement to match the row-based processing structure and prevent information loss.
Solution Approach 2:
The patent introduces a new dimension of time measurement by adding a row dimension to the time information structure. Instead of a single time value for the frame, the system now provides time information with two dimensions: frame level and row level. This dimensional expansion enables precise tracking of processing timing for pixel signals on different rows.
2Device complexity
If time information is added only at frame level, then the system structure remains simple, but the accuracy of capturing information for moving objects is limited
Solution Approach 1:
The time information structure is segmented into multiple components corresponding to different rows. Rather than using a single time value for the entire frame, the system generates separate time information for each row of pixel signals, thereby improving measurement precision without requiring a complete restructuring of the device architecture.
Solution Approach 2:
The row scanning unit performs preliminary row-based scanning of pixel signals before the final output stage. This preliminary action enables the system to capture processing timing information for each row in advance, which is then used to generate accurate time information without adding significant complexity to the overall device structure.
3Measurement precision
If row-based scanning is implemented with multiple time information output, then accurate capturing time information is obtained, but the device complexity increases
Solution Approach 1:
The device structure is segmented into functional units with clear responsibilities: the row scanning unit handles row-based processing, and the output unit handles time information generation. This segmentation allows the system to achieve high measurement precision through row-specific time information while maintaining manageable device complexity by distributing functions across specialized units.
Solution Approach 2:
The row scanning unit and output unit are designed with multi-functionality to handle both the scanning operation and the time information generation within the same structural framework. This universality reduces the need for separate dedicated components, thereby achieving accurate processing timing information without proportionally increasing device complexity.
Data Source
AI summary
An imaging device includes a plurality of pixels arranged in a plurality of rows, in which each of the plurality of pixels outputs a pixel signal; a row scanning unit that scans the plurality of pixels on a row basis; and an output unit that outputs first time information corresponding to a processing timing of the pixel signal on one of the plurality of rows and second time information corresponding to the pixel signal on another of the plurality of rows and having a different value from the first time information.