Viewpoint Rendering Fusion for Artifact-Resistant 3D Images
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Solution Overview
Problem
Existing 3D image generation technologies are expensive, time-consuming, and labor-intensive, and rely heavily on accurate depth images, leading to poor quality and artifacts in viewpoint images.
Innovation Solution
A method and apparatus using deep learning techniques for rendering viewpoints by combining initial feature extraction, channel dimension reduction, and iterative image distortion and restoration, allowing for high-quality 3D image generation without relying on precise depth images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If existing 3D image generation technologies are used, then viewpoint images can be generated, but the process is expensive, time-consuming, and labor-intensive with poor quality and artifacts
Solution Approach 1:
The patent replaces traditional mechanical 3D generation methods (requiring multiple cameras, manual calibration, and complex post-processing) with a deep learning-based neural network system. The neural network automatically learns depth information and viewpoint transformations from 2D images, eliminating the need for expensive multi-camera setups and manual 3D reconstruction processes, thereby reducing both time and cost while improving quality.
Solution Approach 2:
The patent uses a neural network to learn and copy the transformation patterns from training data consisting of 2D images and their corresponding 3D viewpoint images. Once trained, the network can rapidly generate new viewpoint images by applying learned transformation rules to input 2D images, avoiding the need for time-consuming traditional 3D reconstruction and rendering processes.
2Manufacturing precision
If accurate depth images are used for 3D generation, then viewpoint quality may improve, but the system becomes more complex and expensive
Solution Approach 1:
The patent performs preliminary action by training the neural network offline on large datasets of 2D images with known depth information or multiple viewpoint images. During this pre-training phase, the network learns to infer depth and spatial relationships from 2D images alone. Once trained, the network can generate accurate viewpoint images without requiring actual depth images or complex multi-camera systems during operation, thereby simplifying the deployed system while maintaining quality.
Solution Approach 2:
The patent introduces a neural network as an intermediary that bridges the gap between simple 2D images and complex 3D viewpoint generation. Instead of directly using complex depth sensing hardware or multi-camera systems, the neural network acts as a computational intermediary that infers depth information and generates viewpoint transformations, simplifying the overall system architecture while maintaining output quality.
3Ease of operation
If traditional image distortion methods are used, then viewpoint transformation is achieved, but robustness is poor and artifacts are generated
Solution Approach 1:
The patent transforms the image distortion problem from a geometric parameter adjustment task to a learned parameter optimization task. Instead of using fixed geometric distortion models that require manual tuning and are sensitive to parameter errors, the neural network learns optimal distortion parameters and transformation patterns from training data. This allows the system to adapt to different image contents and conditions, improving robustness while maintaining ease of operation.
Solution Approach 2:
The patent incorporates feedback mechanisms during the neural network training process, where the network's generated viewpoint images are compared against ground truth images from multiple cameras or depth sensors. The loss function provides feedback signals that guide the network to minimize artifacts and improve transformation accuracy. This feedback-driven learning approach enables the system to achieve high robustness without requiring manual tuning of distortion parameters.
Data Source
AI summary
A method for rendering viewpoints is provided. The method for rendering viewpoints of the present disclosure includes: acquiring a first initial feature of a two-dimensional image and a second initial feature of a depth image corresponding to the two-dimensional image by performing initial feature extraction on the two-dimensional image and the depth image; acquiring a first initial dimension reduction feature by splicing the first initial feature and the second initial feature in a channel dimension and performing channel dimension reduction; acquiring a fusion feature by performing image distortion and restoration on the first initial dimension reduction feature for multiple times; and generating a plurality of viewpoint images by performing fusion and channel dimension reduction on the fusion feature.


