Image Pickup Device Background Segmentation for Clear Object Capture
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Solution Overview
Problem
Conventional image pickup devices in projectors overlap target object and background images, making it impossible to capture a clear and natural image of the target object due to the projection of the background image onto the object.
Innovation Solution
An image pickup device and method that utilize a background image processor to fill the pickup object area with an illumination image, allowing the projector to capture the object without projecting the background image, thereby separating the object from the background and adjusting brightness to harmonize the resulting image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the background image is projected on the target object during image capture, then the image pickup device can capture the target object, but the background image overlaps with the pickup object image making it impossible to obtain a clear image
Solution Approach 1:
The projected image is segmented into two distinct regions: a first region (background area) displaying the background image and a second region (pickup object area) displaying an illumination image with uniform brightness. This segmentation allows the pickup unit to capture the target object clearly in the second region without background image interference, while the background image remains visible in the first region.
Solution Approach 2:
Different regions of the projected image are assigned different qualities: the first region contains the background image with its original visual information, while the second region contains an illumination image with uniform brightness specifically optimized for clear object capture. This local differentiation resolves the contradiction by providing appropriate image characteristics for each functional area.
2Ease of operation
If the background image is displayed during image capture, then the projector can provide visual background information, but the brightness difference between background image and captured object creates unnatural appearance
Solution Approach 1:
The brightness parameter of the illumination image in the second region is adjusted to be substantially uniform, and the projector adjusts the brightness of the captured pickup object image to match the brightness level of this uniform illumination image. This parameter adjustment ensures that the combined displayed image appears natural and harmonious, resolving the brightness uniformity issue.
3Extent of automation
If the pickup unit captures both background image and object simultaneously, then the projector can project and capture functions are integrated, but the overlapping images cannot be separated effectively
Solution Approach 1:
The projection screen is divided into a first region for background image display and a second region for object illumination, allowing the pickup unit to capture both functions simultaneously while maintaining clear separation between background and object information through spatial segmentation.
Solution Approach 2:
The illumination image serves as an intermediary element in the second region, providing a uniform brightness reference that facilitates clear capture of the pickup object while being distinct from the background image, enabling effective separation of object and background information in the captured image.
Data Source
AI summary
An image pickup device is provided. The image pickup device includes a pickup device that captures an image, a background image processor that determines a pickup object area to be captured to be an illumination image and displays the pickup object area as a background image, a display that displays the background image, and a main controller that generates a control signal that controls the pickup device, the background image processor, and the display. The image pickup device projects the illumination image instead of the background image on the screen, such that the person's image does not overlap with the background image during the image pickup action. A brightness level of the object image in the corrected pickup picture is adjusted according to a brightness level of the background image, such that the object image can be more naturally harmonized with the background image.