Image Data Transfer Apparatus Scan Order Compression
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Solution Overview
Problem
Existing techniques for displaying image data on client terminals via networks often suffer from delay issues due to communication latency, which can impair the sense of immersion and cause visually induced motion sickness, especially in high-quality image displays.
Innovation Solution
An image data transfer apparatus and method that includes a drawing section, a display method information obtainment section, a compression/encoding section, and a communication section. This apparatus generates frame data for a moving image, obtains information about the scan order of a display panel, compresses and encodes pixel data based on this information, and performs a streaming transfer of the compressed and encoded data to the client terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If image data is transferred via network streaming, then image quality can be maintained at high definition, but delay time increases due to communication between client terminal and server
Solution Approach 1:
The patent segments the image data into multiple blocks and transmits them in a specific order that matches the display panel's scan sequence. This segmentation allows the server to prepare and transmit data in advance, reducing the waiting time during display while maintaining high image quality through selective transmission of essential image blocks.
Solution Approach 2:
The patent implements preliminary action by having the server obtain scan order information from the client terminal beforehand and pre-arrange the pixel data transmission sequence according to this information. This allows the data to be ready and transmitted in the optimal order before the display panel actually scans the image, significantly reducing delay time while preserving image quality.
2Ease of operation
If conventional image transfer methods are used, then communication simplicity is maintained, but delay time causes impaired sense of immersion and visually induced motion sickness
Solution Approach 1:
The patent employs feedback by having the client terminal transmit scan order information back to the server, which then uses this information to adjust the pixel data transmission sequence. This feedback mechanism ensures that the transmission system adapts to the specific display panel characteristics, minimizing delay-related harmful effects while maintaining communication effectiveness.
Solution Approach 2:
The patent changes the transmission parameter from conventional random or sequential data transmission to a scan-order-based transmission sequence. By adjusting the data transmission parameters to match the display panel's scan characteristics, the system reduces delay-induced motion sickness and improves immersion sense while maintaining operational simplicity.
Data Source
AI summary
In a server, an image generation section stores a generated image in a frame buffer. A compression/encoding section compresses and encodes image data in units of partial images smaller than one frame. A processing order control section, on the basis of information pertaining to a scan order for a display panel connected to an image processing apparatus which is a data transmission destination, controls an order of reading out pixel data from the frame buffer, a shape of a partial image, or a compression and encoding order. The compressed and encoded partial image data is packetized by a packetization section and transmitted to the image processing apparatus by a communication section.