Image Signal Processing Unit Frame Synchronization
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Solution Overview
Problem
Existing image data transmission systems face challenges in maintaining frame synchronization, leading to issues such as frame loss and frame errors, especially when handling large volumes of image data in complex environments like 3D simulation scenarios.
Innovation Solution
A frame synchronization method is implemented using an image processing system with an image collection module and an image signal processing unit, where a control chip initializes and coordinates multiple image collection apparatuses to send frame image data synchronously through MIPI interfaces, utilizing frame synchronization instructions and synchronization registers to ensure timely and accurate data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple image collection apparatuses are used to obtain large volumes of image data, then the quantity of image data is improved, but frame synchronization reliability deteriorates due to frame loss and frame errors
Solution Approach 1:
The system performs preliminary actions by pre-configuring synchronization registers in each image collection apparatus and pre-establishing the synchronization instruction transmission path through the image signal processing unit before actual image data collection begins. This ensures that all apparatuses are ready to receive and execute synchronization instructions simultaneously, preventing frame loss and synchronization errors during high-volume data acquisition.
Solution Approach 2:
The system implements feedback mechanisms where the image signal processing unit monitors the synchronization status of multiple image collection apparatuses in real-time. When frame synchronization instructions are transmitted, the system tracks their delivery and execution status, allowing for detection and correction of any synchronization deviations that occur during large-volume image data acquisition, thus maintaining frame synchronization reliability.
2Measurement precision
If frame synchronization instructions are transmitted through an image signal processing unit, then frame synchronization accuracy is improved, but system complexity increases
Solution Approach 1:
The image signal processing unit is designed to perform multiple functions: it processes image data from multiple collection apparatuses, manages synchronization register configurations, transmits synchronization instructions, and monitors synchronization status. By consolidating these functions in a single multi-functional unit rather than requiring separate dedicated components for each function, the system achieves high frame synchronization accuracy while minimizing the increase in overall system complexity.
3Manufacturing precision
If synchronization registers are used to coordinate multiple image collection apparatuses, then frame synchronization precision is improved, but device complexity increases
Solution Approach 1:
Instead of using a single centralized synchronization control unit that would require complex wiring and control logic, the system uses synchronization registers in each image collection apparatus that are configured with identical or coordinated values. This copying approach allows each apparatus to independently maintain synchronization based on its register settings, achieving high frame synchronization precision while reducing overall system complexity by eliminating the need for complex centralized control infrastructure.
Data Source
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AI summary
Embodiments of the present invention relate to a frame synchronization method for image data, an image signal processing apparatus, and a terminal. The method includes: receiving a frame synchronization instruction sent by a first image collection apparatus of a terminal; then, separately sending the frame synchronization instruction to a second image collection apparatus and a third image collection apparatus of the terminal, so that the second image collection apparatus, the third image collection apparatus, and the first image collection apparatus synchronously output frame image data; and finally, receiving the frame image data synchronously sent by the first image collection apparatus, the second image collection apparatus, and the third image collection apparatus. In the method, cases such as a frame loss and a frame error are effectively avoided in a process of transmitting frame image data, so that an image collection module outputs synchronous frame image data.