Image Capturing Apparatus HDR Transmission Control

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Solution Overview

Problem

Image capturing apparatuses face challenges in transmitting and displaying High Dynamic Range (HDR) images due to increased data size and the need for additional processing, which hinders smooth display and compatibility with external devices, particularly with file formats like HEVC that lack embedded decoding information.

Innovation Solution

An image capturing apparatus with an interface for external connection, a transmitting unit for encoding image data, and a processing unit that determines whether the data includes decoding information, allowing it to switch between transmitting image data alone or an encoded file with embedded decoding information to ensure smooth display and high compatibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If HDR image data is transmitted to an external apparatus, then the external apparatus can save and display HDR images, but the data size increases and additional processing is needed which hinders smooth display

Engineering Contradiction:
ImproveHDR image compatibilityVSAvoiddisplay smoothness
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent applies preliminary action by embedding decoding information into the HDR image data before transmission to the external apparatus. This pre-preparation of decoding information eliminates the need for additional processing at the receiving end, enabling smooth display while maintaining HDR compatibility. The image capturing apparatus performs the encoding and decoding information insertion in advance, so the external apparatus can directly process and display the images without delay.

Inventive Principle:
Principle #10Preliminary action

2Quantity of substance

If only image data is transmitted without decoding information, then data size is reduced, but the external apparatus cannot decode and display the image data

Engineering Contradiction:
Improvedata sizeVSAvoiddecoding capability
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The patent applies merging by combining the HDR image data with decoding information into a single integrated data structure before transmission. Instead of sending separate files or requiring additional communication exchanges, the decoding information is embedded within the image data itself. This unified approach ensures that the external apparatus receives both the image content and the necessary decoding instructions together, enabling immediate playback without requiring separate decoding information transmission.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If decoding information is embedded in the image data, then the external apparatus can decode and display images, but the data size increases

Engineering Contradiction:
Improvedecoding capabilityVSAvoiddata size
Core Design Contradiction:
Ease of operationVSQuantity of substance

Solution Approach 1:

The patent applies parameter changes by optimizing the encoding parameters and data structure to minimize the overhead of embedded decoding information. By efficiently packaging the decoding information and using compact data representations, the patent reduces the incremental data size while maintaining full decoding capability. This allows the system to achieve a balance where decoding information is included but the overall data size increase is minimized, enabling smooth HDR image transmission and playback.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11778336B2Image capturing apparatus and control method thereof
Publication Date: 2023.10.03 CANON KK
  • US11778336B2 patent drawing
  • US11778336B2 patent drawing
  • US11778336B2 patent drawing

AI summary

An image capturing apparatus comprises an interface configured to connect to an external apparatus, a transmitting unit configured to transmit image data to an external apparatus connected by the interface, a processing unit configured to encode the image data with a predetermined format, a determination unit configured to determine whether or not image data to be encoded by the processing unit includes decoding information for decoding the image data, and a control unit configured to switch, based on the determination result, between processing for transmitting image data encoded by the processing unit and the decoding information to the external apparatus and processing for transmitting an image file in which image data including the decoding information is encoded to the external apparatus.