18421780. Video Compression Methods and Apparatus simplified abstract (Apple Inc.)

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Video Compression Methods and Apparatus

Organization Name

Apple Inc.

Inventor(s)

Geoffrey Stahl of San Jose CA (US)

Avi Bar-zeev of Oakland CA (US)

Video Compression Methods and Apparatus - A simplified explanation of the abstract

This abstract first appeared for US patent application 18421780 titled 'Video Compression Methods and Apparatus

Simplified Explanation

The patent application describes a mixed reality system that includes a head-mounted display (HMD) and a base station. The system utilizes motion vectors from both the HMD and the rendering engine to compress frames and transmit them to the HMD over a connection. If a frame is not received at the HMD, it can synthesize a frame from a previous frame using the motion vectors.

  • HMD sensors collect information that is transmitted to the base station.
  • The base station renders frames with virtual content based on sensor information and compresses them before sending to the HMD.
  • Motion vectors from the HMD and rendering engine are used in compressing frames.
  • Motion vectors may be embedded in the data stream and transmitted to the HMD.
  • The HMD can synthesize frames using motion vectors if a frame is not received.

Potential Applications

This technology could be used in virtual reality gaming, training simulations, remote collaboration, and augmented reality applications.

Problems Solved

This technology solves the problem of efficiently transmitting and rendering frames in a mixed reality system, improving the overall user experience.

Benefits

The benefits of this technology include reduced latency, improved frame synthesis capabilities, and enhanced visual quality in mixed reality environments.

Potential Commercial Applications

Potential commercial applications of this technology include VR gaming systems, AR training platforms, remote collaboration tools, and industrial simulations.

Possible Prior Art

Prior art may include similar patents related to frame compression and transmission in virtual reality or augmented reality systems.

Unanswered Questions

How does this technology impact battery life in HMD devices?

This article does not address the potential impact of this technology on the battery life of HMD devices. It would be interesting to know if the increased processing requirements for frame synthesis and compression have any significant effect on battery consumption.

Are there any limitations to the use of motion vectors in frame compression?

The article does not discuss any potential limitations or drawbacks of using motion vectors in frame compression. It would be valuable to understand if there are any challenges or constraints associated with this approach that could affect the overall performance of the system.


Original Abstract Submitted

A mixed reality system including a head-mounted display (HMD) and a base station. Information collected by HMD sensors may be transmitted to the base via a wired or wireless connection. On the base, a rendering engine renders frames including virtual content based in part on the sensor information, and an encoder compresses the frames according to an encoding protocol before sending the frames to the HMD over the connection. Instead of using a previous frame to estimate motion vectors in the encoder, motion vectors from the HMD and the rendering engine are input to the encoder and used in compressing the frame. The motion vectors may be embedded in the data stream along with the encoded frame data and transmitted to the HMD over the connection. If a frame is not received at the HMD, the HMD may synthesize a frame from a previous frame using the motion vectors.