Parallax Image Encoding Using Prediction Correction
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Solution Overview
Problem
Current encoding methods do not effectively improve the encoding efficiency of parallax images, which are crucial for generating high-quality multi-viewpoint 3D images.
Innovation Solution
An encoding device and method that corrects prediction images using parallax image information, specifically employing the parallax maximum value, minimum value, and inter-camera distance to encode and transmit parallax images, thereby enhancing encoding efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional encoding methods are used for parallax images, then the encoding process is simple, but the encoding efficiency is insufficient
Solution Approach 1:
The patent applies preliminary action by correcting the prediction image before the actual encoding process. The correction unit uses parallax image information (maximum value, minimum value, and inter-camera distance) to pre-adjust the prediction image, ensuring that the subsequent encoding operation works with optimized data. This preliminary correction step improves encoding efficiency without significantly increasing overall system complexity.
Solution Approach 2:
The patent utilizes parameter changes by incorporating specific parallax image parameters (maximum value, minimum value, and inter-camera distance) into the prediction image correction process. These parameters are used to dynamically adjust the prediction image, allowing the encoding system to adapt to different parallax conditions and improve encoding efficiency for various 3D content scenarios.
2Productivity
If parallax image information is used to correct prediction images, then encoding efficiency improves, but the amount of information to be transmitted increases
Solution Approach 1:
The patent applies the taking out principle by extracting only the essential parallax image information (maximum value, minimum value, and inter-camera distance) needed for prediction image correction. Instead of transmitting the entire parallax image or all its parameters, only these three critical parameters are extracted and transmitted, minimizing the additional data volume while still enabling effective prediction image correction and improving encoding efficiency.
3Manufacturing precision
If prediction images are corrected using parallax image information, then the quality of encoded 3D images improves, but the processing complexity increases
Solution Approach 1:
The patent applies local quality by focusing the correction process on specific critical parameters (maximum value, minimum value, and inter-camera distance) rather than attempting to correct the entire prediction image uniformly. This localized approach to correction using select parallax parameters improves image quality for 3D reconstruction while keeping the processing complexity manageable by concentrating computational efforts on the most influential parameters.
Data Source
AI summary
The present technique relates to an encoding device, an encoding method, a decoding device, and a decoding method capable of improving encoding efficiency of a parallax image using information about the parallax image. The correction unit corrects a prediction image of a parallax image of a reference viewpoint using information about the parallax image of the reference viewpoint. The arithmetic operation unit encodes the parallax image of the reference viewpoint using the corrected prediction image. The encoded parallax image of the reference viewpoint and the information about the parallax image of the reference viewpoint are transmitted. The present technique can be applied to, for example, an encoding device of the parallax image.