Apple inc. (20240160022). Video Compression Methods and Apparatus simplified abstract

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 20240160022 titled 'Video Compression Methods and Apparatus

Simplified Explanation

The abstract describes a mixed reality system that includes a head-mounted display (HMD) and a base station. The system uses motion vectors from the HMD and rendering engine to compress frames and transmit them to the HMD for display.

• The system includes a head-mounted display (HMD) and a base station.
• Information collected by HMD sensors is transmitted to the base station.
• A rendering engine on the base station renders frames with virtual content based on sensor information.
• An encoder compresses frames according to an encoding protocol before sending them to the HMD.
• Motion vectors from the HMD and rendering engine are used in compressing the frame.
• Motion vectors may be embedded in the data stream and transmitted to the HMD.
• The HMD can synthesize a frame from a previous frame using the motion vectors if a frame is not received.

Potential Applications

The technology can be used in virtual reality gaming, augmented reality applications, training simulations, and remote collaboration tools.

Problems Solved

This technology solves the problem of efficiently transmitting high-quality virtual content from a base station to an HMD without relying solely on previous frame data for compression.

Benefits

The system provides a more accurate representation of virtual content in the HMD, reduces latency, and improves the overall user experience in mixed reality environments.

Potential Commercial Applications

Commercial applications include virtual reality gaming systems, augmented reality training programs, remote collaboration tools for businesses, and virtual tours for real estate.

Possible Prior Art

Prior art may include similar systems that use motion vectors for frame compression in virtual reality or augmented reality applications.

How does this technology impact battery life in the HMD?

The abstract does not mention the impact of this technology on the battery life of the HMD. It would be important to understand if the use of motion vectors for compression affects power consumption.

What are the potential security implications of transmitting motion vectors over a wireless connection?

The abstract does not address the security aspects of transmitting motion vectors over a wireless connection. It would be crucial to assess the potential risks of data interception or manipulation during transmission.

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.