Image Synthesis Subject Detection Multi-Exposure Control
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Solution Overview
Problem
Compact digital cameras find it difficult to perform multi-exposure photography due to limitations in bulb photographing functions, making it challenging for users to achieve professional-quality images, especially when photographing events like fireworks, where inappropriate shutter timing can result in disconnected or distorted light traces.
Innovation Solution
An image processing device and method that includes a synthesis processing portion to perform pixel addition and detection-based termination, allowing for easy generation of multiple exposure images by detecting subjects within input images and synthesizing them based on subject detection results, eliminating the need for manual shutter timing adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a digital camera has a bulb photographing function, then it is possible to perform multi-exposure photography, but it is difficult for a user to perform photography at optimum shutter timing
Solution Approach 1:
The camera automatically controls the shutter timing based on detected subject movement. The system detects when the subject enters and exits the frame, and automatically opens/closes the shutter at these moments without requiring manual user intervention for timing control.
Solution Approach 2:
The system continuously monitors the captured image to detect subject presence and movement. Based on this feedback, the shutter control is dynamically adjusted to capture the subject at appropriate moments, creating a closed-loop control system that adapts to real-time conditions.
2Manufacturing precision
If manual shutter timing is used for multi-exposure photography, then it is possible to control exposure timing, but the work is very complicated and requires specialized equipment
Solution Approach 1:
The manual mechanical shutter control system is replaced with an automated image processing system. The camera captures multiple images and uses computational methods to automatically determine and execute the synthesis, eliminating the need for complex manual timing mechanisms and specialized equipment.
Solution Approach 2:
The system captures multiple images in advance during continuous shooting mode, then processes these pre-captured images to create the final multi-exposure result. This preliminary capture phase simplifies the overall process by separating data collection from synthesis operations.
3Adaptability or versatility
If multiple images are synthesized through post-processing, then it is possible to create multiple exposure images, but the work is very complicated
Solution Approach 1:
The patent merges the multi-exposure synthesis function directly into the camera's image processing pipeline rather than requiring separate post-processing software. The synthesis processing unit integrates multiple captured images and automatically generates the final multi-exposure image, combining what would traditionally be separate steps into a unified automated process.
Data Source
AI summary
There is provided an image processing device including a synthesis processing portion configured to perform a synthesis process of performing addition on pixels including a region of a subject included in an input image and terminate the synthesis process on the basis of a detection result of a subject detection portion which detects the subject of the input image.