Networked Camera Timing Mark Synchronization
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Solution Overview
Problem
Existing camera systems with remote image-capturing capabilities face challenges in capturing images of desired scenes due to delayed live view motion pictures, as they require known shutter time lag and cannot handle systems with unknown delays or only delayed motion pictures.
Innovation Solution
An information processing device and method that sets marks for image-capturing timing based on captured images of similar scenes, transmitted via a network, allowing users to capture desired images while watching delayed live views by synchronizing image-capturing with delayed live view frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a live view motion picture is transmitted from the camera to the terminal device via a network, then remote image-capturing capability is achieved, but the live view becomes delayed from the actual event
Solution Approach 1:
The method performs preliminary actions by capturing images at predetermined intervals before the actual capture timing and storing them in advance. This allows the system to have pre-captured images ready to compensate for the network transmission delay, enabling the terminal device to display images that correspond to the actual event timing rather than showing delayed live view images.
Solution Approach 2:
The patent introduces an intermediary mechanism by using predetermined capture timing information and pre-captured images as a buffer between the actual event and the displayed image. This intermediary layer of pre-captured frames acts as a substitute for the delayed live view, allowing the user to see images that are synchronized with the actual event rather than the delayed network transmission.
2Measurement precision
If shutter time lag is used to compensate for delay, then the delay can be grasped, but the method requires known shutter time lag and cannot handle unknown delays
Solution Approach 1:
The patent changes the parameter approach by replacing the fixed shutter time lag compensation with dynamic predetermined capture timing. Instead of using a fixed delay value that must be known in advance, the system captures images at predetermined intervals based on the actual event timing, making the delay compensation adaptive to unknown or variable network delays without requiring precise measurement of shutter time lag.
Solution Approach 2:
The system performs preliminary image capture at predetermined intervals before the actual capture timing, storing these images in advance. This preliminary action creates a buffer of pre-captured images that can be displayed to compensate for any amount of network delay, whether known or unknown, eliminating the need to precisely measure or know the shutter time lag in advance.
3Loss of time
If images are captured at predetermined intervals before capture timing, then delayed live view compensation is achieved, but image data storage requirements increase
Solution Approach 1:
The patent extracts only the necessary pre-captured images for compensation purposes rather than storing all captured images. By selectively storing images captured at predetermined intervals before the actual capture timing, the system extracts only the specific frames needed to compensate for network delay, reducing storage requirements compared to storing continuous or all captured images.
Data Source
AI summary
An information processing device is connected to an image-capturing device via a network, in which a mark indicating image-capturing timing in an image-capturing scene is set on the basis of: a captured image of a scene similar to the image-capturing scene, the captured image being transmitted via the network; and a live view image corresponding to the captured image.