Partial-Region Image Decoding Load Control for Decoder Selection
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Solution Overview
Problem
Existing image decoding technologies lack accurate performance recognition for decoding partial regions, leading to unnecessary high-level decoder requirements and limited application delivery.
Innovation Solution
An image decoding device and method that includes an acquisition unit for acquiring coded data and decoding load definition information, a control unit for controlling decoding based on this information, and a decoding unit for decoding the data, allowing for accurate performance recognition of partial regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If decoding load definition information for entire stream or layer unit is used, then decoder compatibility is ensured, but decoder performance recognition becomes inaccurate and unnecessarily high-level decoders are required
Solution Approach 1:
The patent segments the image data into independently decodable partial regions (tiles) and introduces separate decoding load definition information for each partial region. This allows the decoder to accurately assess the actual decoding requirements of the specific region being decoded, rather than assuming the load of the entire stream or layer unit. The segmentation enables precise performance recognition while avoiding unnecessarily high decoder level requirements.
2Adaptability or versatility
If entire screen decoding load is assumed, then decoder capability is ensured, but application delivery becomes unnecessarily limited
Solution Approach 1:
The patent applies local quality by defining decoding load characteristics specifically for each partial region rather than uniformly for the entire image. Each partial region can have its own decoding load definition information reflecting its actual complexity and resource requirements. This enables applications to be delivered based on the actual capabilities needed for the specific region, increasing flexibility while maintaining reliability through accurate capability assessment.
Data Source
AI summary
The present disclosure relates to an image decoding device capable of recognizing performance necessary for decoding more accurately and a method. Coded data of image data and decoding load definition information for defining a magnitude of a load of a decoding process of a partial region of an image of the image data are acquired; decoding of the acquired coded data is controlled based on the acquired decoding load definition information; and the acquired coded data is decoded according to the controlling. The present disclosure can be applied to an information processing device such as an image coding device that scalably codes image data or an image decoding device that decodes encoded data obtained by scalably coding image data.