Pre-Shot Background Replacement for Clear Live Broadcast Images
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Solution Overview
Problem
The use of specific devices as live broadcast backgrounds, such as projection screens or TVs, leads to reflections and unclear images, increasing costs and reducing the clarity of live broadcasts.
Innovation Solution
A method involving pre-shooting a basic background image of a preset scene, identifying the current background in a captured image using this image, and replacing it with a preset background image to enhance clarity without the need for physical devices like green screens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a projection screen or TV is set as a live broadcast background, then information can be displayed to viewers, but reflections occur causing the live broadcast picture to become unclear
Solution Approach 1:
The patent uses a camera to capture the background scene and creates a digital copy of the background image. This digital background image is then overlaid on the live broadcast, replacing the physical projection screen or TV. This copying approach eliminates reflections while preserving information display, as the digital image can be perfectly controlled and displayed without optical interference.
2Loss of information
If a projection screen or TV is set as a live broadcast background, then information can be displayed, but the cost of the live broadcast increases
Solution Approach 1:
Instead of purchasing and setting up expensive projection screens or TVs, the patent uses a camera to capture the background and creates a digital representation. This digital background can be stored and reused indefinitely without additional hardware costs, significantly reducing the overall live broadcast setup cost while maintaining information display capabilities.
Solution Approach 2:
The patent replaces the mechanical/optical system of projection screens or TVs with a digital image processing system. By using a camera to capture the background and then overlaying the digital image during live broadcast, the system eliminates the need for expensive physical display devices, reducing costs while achieving the same information display function.
3Adaptability or versatility
If a green screen is set at the live broadcast site, then background replacement can be achieved, but live broadcast consumables are needed resulting in higher cost
Solution Approach 1:
The patent captures the actual background scene with a camera and uses this real background image instead of requiring a green screen. By copying the genuine background environment, the system achieves background replacement capability without needing additional consumable materials like green screens, special lighting, or complex physical setups, thereby reducing costs.
Data Source
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AI summary
A method for replacing a background in a picture, a device, a storage medium and a program product provided in the embodiments relate to image processing technologies and include: acquiring a basic background image of a preset scene, where the basic background image is an image obtained by shooting the preset scene in advance; acquiring a captured picture obtained by currently shooting the preset scene, and determining a current background image of the preset scene according to the basic background image and the captured picture; replacing the current background image in the captured picture with a preset background image to obtain a final captured picture. In the solution provided by the embodiments, the current background image in the currently captured picture can be identified by using the basic background image captured in advance, and then the preset background image can be used to replace the current background image in the captured picture. In such a way, without setting a specific background apparatus in the preset scene, the background in the captured picture can be adjusted according to requirements, thereby improving flexibility of replacing the background in the captured picture.