Image processing device and image processing method
AssigneeSony Corporation
InventorNobuaki IZUMI
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to an image processing device and an image processing method for generating a celestial sphere image such that the pixels near the poles of the sphere are kept from increasing in density when the image is mapped to the sphere surface. An encoder encodes, with respect to an omnidirectional image generated by equidistant cylindrical projection to include a top image, a middle image, and a bottom image in a vertical direction, the middle image into an encoded stream at a high resolution, and the top image and the bottom image into encoded streams at a resolution lower than the high resolution. This disclosure is applicable to image display systems, among others.
Claims20
An image processing device comprising:
- an encoding section configured to encode, with respect to an omnidirectional image generated by equidistant cylindrical projection which is divided vertically into a top image, a middle image, and a bottom image, the middle image into an encoded stream at a first resolution and the top and the bottom images into encoded streams at a second resolution lower than the first resolution.
An image processing method comprising:
- an encoding step by an image processing device of encoding, with respect to an omnidirectional image generated by equidistant cylindrical projection to include a top image, a middle image, and a bottom image in a vertical direction, the middle image into an encoded stream at a first resolution and the top and the bottom images into encoded streams at a second resolution lower than the first resolution.
An image processing device comprising:
- a decoding section configured to decode, among an encoded stream obtained by encoding a middle image at a first resolution and encoded streams obtained by encoding a top image and a bottom image at a second resolution lower than the first resolution, the encoded stream of the top image or the bottom image and the encoded stream of the middle image, the top, the middle, and the bottom images being obtained by dividing in a vertical direction an omnidirectional image by equidistant cylindrical projection.
An image processing method comprising:
- a decoding step by an image processing device of decoding, among an encoded stream obtained by encoding a middle image at a first resolution and encoded streams obtained by encoding a top image and a bottom image at a second resolution lower than the first resolution, the encoded stream of the top image or the bottom image and the encoded stream of the middle image, the top, the middle, and the bottom images being obtained by dividing in a vertical direction an omnidirectional image by equidistant cylindrical projection.
Dependencies are inferred from the claim text.