Methods and apparatus for receiving and/or playing back content

A content playback method comprising:

• receiving, by a content playback device, first correction information corresponding to a first camera, wherein the first correction information is indicative of adjustments to node positions in a first UV map to compensate for image distortions introduced by a lens of the first camera, wherein each node position in the first UV map corresponds to a vertex of an environment-specific model;
• receiving, by the content playback device, first field of view (FOV) information corresponding to the first camera, wherein the first FOV information is indicative of a first field of view of an environment represented by the environment-specific model and associated with the first camera;
• receiving, by the content playback device, a first encoded image including image content captured by the first camera;
• decoding, by the content playback device, the first encoded image to generate a first decoded image;
• performing, by the content playback device, a first rendering operation on the first decoded image to generate a first image for display, wherein the first rendering operation is performed based on the first correction information, the first decoded image, the first UV map, the first FOV information, and the environment-specific model;
• receiving, by the content playback device, second correction information corresponding to a second camera;
• receiving, by the content playback device, a second encoded image including image content captured by the second camera;
• decoding, by the content playback device, the second encoded image to generate a second decoded image;
• and
• performing, by the content playback device, a second rendering operation on the second decoded image to generate a second image for display, wherein the second rendering operation is performed based on the second correction information, the second decoded image, the first UV map, the first FOV information and the environment-specific model;
• wherein the first and second cameras comprise a first stereoscopic camera pair, wherein the first encoded image is a left eye image and the second encoded image is a right eye image.

A content playback device comprising:

• an interface configured to:
• receive first correction information corresponding to a first camera and first field of view (FOV) information associated with the first camera, wherein:
• the first correction information is indicative of adjustments to node positions in a first UV map to compensate for image distortions introduced by a lens of the first camera,
• each node position in the first UV map corresponds to a vertex of an environment-specific model, and
• the first FOV information is indicative of a first field of view of an environment represented by the environment-specific model and associated with the first camera;
• and
• receive a first encoded image including image content captured by the first camera;
• a decoder configured to decode the first encoded image to generate a first decoded image;
• and
• a rendering engine configured to perform a first rendering operation on the first decoded image to generate a first image for display, wherein the rendering engine is configured to perform the first rendering operation based on the first correction information, the first UV map, the first FOV information, and the environment-specific model.

A non-transitory computer readable medium including processor executable instructions which when executed by a processor control a playback system to:

• receive first correction information corresponding to a first camera and first field of view (FOV) information associated with the first camera, wherein:
• the first correction information is indicative of adjustments to node positions in a first UV map to compensate for image distortions introduced by a lens of the first camera,
• each node position in the first UV map corresponds to a vertex an environment-specific model, and
• the first FOV information is indicative of a first field of view of an environment represented by the environment-specific model and associated with the first camera;
• receive a first encoded image including image content captured by the first camera;
• decode the first encoded image to generate a first decoded image;
• and
• perform a first rendering operation on the first decoded image to generate a first image for display, wherein the first rendering operation is based on the first correction information, the first UV map, the first FOV information, and the environment-specific model.