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How To Build A Low-Latency 4K Telemedicine System Using ORIVISION 4Channels Video Encoder Decoder

Views: 0 Author: Site Editor Publish Time: 2026-05-29 Origin: Site

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Project Overview

In modern digital healthcare, visual precision and real-time synchronization are paramount. A prominent medical systems integrator sought an enterprise-grade hardware solution to digitize operating rooms (OR) for a networked group of hospitals. The objective was to capture multiple high-definition medical video sources simultaneously and transmit them with ultra-low latency to remote expert clinics and hospital lecture theatres for real-time surgical guidance and medical training.

The Challenges

Multi-Source Complexity

Modern ORs require simultaneous monitoring of diverse video feeds, including ultra-high-definition endoscopes (4K), surgical boom cameras, room-view ambient cameras, and vital sign patient monitors.

Low-Latency Remote Delivery

During critical surgical procedures, any video delay can lead to miscommunication between the operating surgeon and remote experts. Ensuring sub-second latency over standard networks while preserving pristine 4K clarity is critical for real-time surgical guidance.

The Solution: Integrated 4K Encoder & Decoder Ecosystem

The integrator deployed a synchronized hardware matrix utilizing the ORIVISION EH1304 4-Channel Encoder at the source and the ORIVISION DH931 4K Video Decoder at the receiving nodes.

Low latency 4K telemedicine streaming via SRT protocol

Multi-Channel Edge Encoding (EH1304)

In the operating room, the EH1304 utilized its 4x HDMI inputs to ingest a mix of resolutions simultaneously. Channels 1 and 2 captured true 4K@30Hz video feeds directly from the 4K laparoscope and the surgical boom camera to retain microscopic tissue details. Channels 3 and 4 captured 1080P@60Hz feeds from the ambient room camera and the patient's vital monitors.

Secure, Low-Latency Transmission (SRT Protocol)

The EH1304 compressed the video streams via H.265 (saving 50% bandwidth) and transmitted them over the hospital WAN using the SRT (Secure Reliable Transport) protocol to protect data integrity and minimize internet jitter.

Hardware-Based 4K Decoding & Display (DH931)

In the remote expert consultation room and the main lecture theatre, the ORIVISION DH931 Decoder acted as the endpoint receiver. It automatically pulled the H.265 SRT streams from the network, decoded them via dedicated hardware DSP, and outputted pristine 4K@30Hz video through its HDMI port directly onto large-screen medical displays.

Legacy Equipment Compatibility

For older monitoring stations that only supported legacy analog feeds, the DH931 leveraged its multi-interface versatility, outputting synchronized down-scaled video through its VGA and CVBS (BNC) ports concurrently.

Key System Architecture

Encoding Node (EH1304)

4-CH HDMI Input (Up to 2x 4K@30Hz + 2x 1080P@60Hz) → H.265 Hardware Compression → Secure SRT / RTSP / RTMP IP Streaming.

Decoding Node (DH931)

Multi-Channel IP Stream Input → Hardware H.265 Ultra-HD Decoding → Ultra-Low Latency 4K HDMI + VGA + CVBS Simultaneous Output.

Results & Benefits

Sub-Second End-to-End Latency

The hardware-to-hardware combination of EH1304 and DH931 achieved an end-to-end latency of under 300ms, enabling real-time verbal coaching during critical surgical steps.

PC-Free Operational Reliability

Eliminating software-based media players at the receiving end drastically reduced system crashes, virus vulnerabilities, and configuration errors, ensuring 100% uptime for medical operations.