HDR Image Capture Device Segmentation Encoding
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Solution Overview
Problem
Existing image capture devices face challenges in recording and playback of High Dynamic Range (HDR) images due to their large data size, which can lead to compatibility issues and increased system scale, necessitating a method to divide and encode HDR image data effectively for efficient storage and playback.
Innovation Solution
An image capture device that divides HDR image data into multiple segments, encodes each segment using encoding means, and records them in a predetermined format, along with overlay information for recombination, utilizing the High Efficiency Image File Format (HEIF) to ensure compatibility and efficient playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If HDR image data is recorded as a single large file, then complete image information is preserved, but device compatibility decreases and system complexity increases
Solution Approach 1:
The patent divides HDR image data into multiple segments or chunks, allowing the large image file to be processed and stored in smaller, more manageable units. This segmentation enables better compatibility with devices that have storage or processing limitations while preserving the complete HDR image information across multiple segments.
2Adaptability or versatility
If HDR image data is divided into multiple segments, then device compatibility improves, but data processing complexity increases
Solution Approach 1:
The patent performs preliminary actions by organizing and structuring the segmented HDR image data in advance, with proper indexing and metadata. This preliminary organization reduces the processing complexity during playback, as the system already has a prepared framework for reassembling the segments without requiring complex real-time processing.
3Manufacturing precision
If overlay information is included for recombination, then image reconstruction accuracy improves, but file size increases
Solution Approach 1:
The patent applies local quality by including overlay information selectively - only the necessary metadata and reconstruction data are embedded in the file, while the bulk of the file consists of the actual image segments. This approach provides sufficient information for accurate reconstruction without unnecessarily inflating the overall file size with redundant data.
Data Source
AI summary
An image capture device for recording HDR (high dynamic range) image data obtained through image capture performs control so as to, when encoding HDR image data obtained by capturing an image with an image sensor, divide part of the HDR image data corresponding to a coding area to be encoded into a plurality of divided HDR image data, encode each of the plurality of divided HDR image data by using encoding means, and record the plurality of divided HDR image data that are encoded on a recording medium in a predetermined recording format.