Monoscopic 3D Video Depth Layer Segmentation
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Solution Overview
Problem
Conventional video processing systems lack efficient methods to utilize depth information effectively, particularly in generating and transmitting 3D video, which limits their ability to enhance video quality and reduce bandwidth usage.
Innovation Solution
A system and method that utilize depth information as an enhancement layer, where a monoscopic 3D video generation device captures 2D video image data as a base layer and corresponding depth information as an enhancement layer, allowing for selective transmission and decoding to generate either 3D or 2D video based on rendering device capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If depth information is transmitted as an enhancement layer for all devices, then 3D video quality is improved, but bandwidth usage increases unnecessarily for devices that cannot render 3D
Solution Approach 1:
The video stream is segmented into a base layer (2D video) and an enhancement layer (depth information). Devices can selectively decode only the base layer if they cannot render 3D, or decode both layers to achieve 3D rendering. This segmentation allows quality improvement for capable devices without forcing bandwidth consumption on all devices.
Solution Approach 2:
The system dynamically adapts the transmission and decoding of the enhancement layer based on the rendering device's capabilities. The base layer is always transmitted, while the enhancement layer is conditionally decoded and utilized only when the device supports 3D rendering, optimizing bandwidth usage according to actual needs.
2Adaptability or versatility
If depth information is captured and processed, then 3D video capability is enhanced, but system complexity increases
Solution Approach 1:
The depth information is captured using the existing image sensor in the monoscopic camera, serving dual purposes: as a standard 2D image sensor for base layer capture and as a depth sensor for enhancement layer extraction through post-processing. This multi-functionality enhances 3D capability without requiring additional dedicated depth sensing hardware, thereby limiting the increase in system complexity.
Solution Approach 2:
A processor acts as an intermediary to extract depth information from the captured 2D video data through computational methods. This intermediary processing step enables 3D video capability enhancement without directly adding complex hardware components, as the depth extraction is performed computationally from existing image data.
3Manufacturing precision
If enhancement layer is always decoded, then 3D rendering quality is maximized, but processing energy increases for devices that only need 2D
Solution Approach 1:
The decoding process is dynamically adjusted based on device capabilities. Devices that support 3D rendering decode both the base layer and enhancement layer to maximize rendering quality. Devices that only support 2D rendering decode only the base layer, avoiding the energy consumption associated with processing the enhancement layer while still receiving the video stream.
Solution Approach 2:
The system enables devices to self-determine their decoding requirements based on their rendering capabilities. Each device autonomously decides whether to decode the enhancement layer, with capable devices opting to decode it for enhanced quality and incapable devices skipping it to conserve energy, without requiring centralized control.
Data Source
AI summary
A monoscopic 3D video generation device, which comprises one or more depth sensors, may be operable to store captured 2D video image data as a base layer and store captured corresponding depth information separately as an enhancement layer. The 2D video image data may be captured via one or more image sensors and the corresponding depth information may be captured via the one or more depth sensors in the monoscopic 3D video generation device. The monoscopic 3D video generation device may determine whether to transmit the enhancement layer to a video rendering device. The monoscopic 3D video generation device may encode the base layer. The monoscopic 3D video generation device may encode the enhancement layer based on the determination of transmitting the enhancement layer. The encoded base layer and/or the encoded enhancement layer may be transmitted to the video rendering device for 3D video rendering and/or 2D video rendering.