Page Comparison

4D Device Manager

UI app that sets up and maps IP based on devices installed in the Venue and

the Racks to perform all settings for shooting

4D Media Live

The input image is processed to create transcoding and image segments (.m4s, flagmented mp4) and manifest files (.m3u8). An instance that converts the video source of each camera channel to the 4DHLS format consisting of one 4DMLM (4DML Manager) that manages processing internally and multiple

4DMLMP’s (4DML Media Pipeline) that performs actual processing.

4DML Manager

A manager who manages multiple 4DMLs and their pipelines, and manages media processing tasks

4DML Media PipeLine

Pipeline to merge/separate fragments of 4DHLS contents processed in 4DML

4D Producer & Director

UI app for shooting Live Service, Replay, Interactive VOD production, etc.

4D Relay Server

Instances that receives video from the camera channel coming from the venue

4D Streaming Manager

UI app that adjusts the area to be displayed in MainView/MultiView during Live Service.

Elastic File System

AWS services that provide shared storage over a network for access from multiple instances.

Group of Pictures Digital)

A unit of video that enables access and playback from an arbitrary point of view in a video (GOP uses the boundary as an I[DR] frame)

HTTP Live Streaming

Apple's Adaptive Bitrate Streaming standard enables video playback without interruption by changing the quality of the video according to the network situation.

Multimedia Maker Daemon Client

A PC that performs Replay production tasks and calibration tasks assigned by MMS

Multimedia Maker Daemon

It is a general name for a

Daemon that performs an image or function to be produced based on the original camera image, and refers to MMS and MMCs attached thereto.

Multimedia Maker Daemon Server

An MMC management PC that assigns tasks to MMC and merges the results created in each MMC to produce results.

Pre Storage Daemon

A

Daemon that saves the original image from the

camera and provides the original image to VPd/4DDM/4DPS/MMc

Post Storage Daemon

A

Daemon that collects the original of the video

for Live Service and transmits them to 4DRS

Real Time Streaming Protocol

A standard that follows RFC2326/7826, which defines a server that streams video in real time, and generally refers to video streaming that follows this standard.

Serial Digital Interface

Broadcast Digital Video Interface

Supplemental Enhancement Information

In AVC/HEVC digital video, auxiliary data can be inserted into the video bitstream, and it is used to insert data for position swipe in the 4DLive service.

Core Module Daemon

The process in charge of image processing, the

Daemon required to use Post

Stabilization, a shake compensation effect

Environment Management Daemon

A

Daemon that stores system configuration information and diagnoses the state of various processes, and is mainly used to store mapped information.

Camera Control Daemon

Daemon that controls the camera

Gimbal Control Daemon

Daemon that controls the gimbal

Message Transfer Daemon

Daemon responsible for transmitting messages inside the system.

Process Control Daemon

Daemon in charge of the system processes

Vision Processor Daemon

Daemon that adjusts the image of the camera's source based on the calibration data to create a video source for the Live service.

Amazon Web Service

The name of the cloud service provided by Amazon

AWS Media Store

Stores original HLS contents for streaming with Storage Service provided by AWS

AWS Cloud Front

With the CDN service provided by AWS, service contents are cached where latency is minimized by region

Integrated Management Server

A system that stores and controls information from the 4DReplay shooting system and the 4DLive relay system. There is a separate web page that can be used by the operator. i.e. the server that manages the HW/SW/configuration of the venue and the service configuration.

Contents Management Server

A system that manages content such as sports event information, replay videos, and interactive videos. It consists of a content database, an API server that provides content information to applications, and a web page that allows operators to manage content. That is, a server that manages information about all contents to be created and delivered to the customer during the service.

The video compression standard is more advanced than the existing MPEG-4 Part2. Also known as AVC (Advanced Video Coding)

MPEG-H Part.2, which can be compressed to the same image quality with 50% of the data compared to H.264, is also called HEVC (High Efficiency Video Coding).