A point cloud decoding method related to the field of coding technologies and includes reconstructing a point cloud comprising one or more patches. The one or more patches comprise a current patch. The reconstructing process may include transforming coordinates (x2, y2) of a second point of the current patch in a second coordinate system to coordinates (x1, y1) of a first point of the current patch in a first coordinate system, where the coordinates (x1, y1) of the first point of the current patch in the first coordinate system may be obtained based on the coordinates (x2, y2) of the second point of the current patch in the second coordinate system and a transform matrix.

A method, at a display control device, for transforming image data, the method comprising receiving portions of image data from a host device, wherein the portions of image data are based on tiles of an image, wherein the image comprises tiles in a tile order, each tile comprising pixels in a pixel order, and receiving display order information provided by host device, wherein the display order information provides an order for providing the portions of image data to a display device and generating different image data having a different tile order based on the display order information, and a different pixel order and providing the different image data the display device for displaying a transformed image.

A point cloud decoding method related to the field of coding technologies and includes reconstructing a point cloud comprising one or more patches. The one or more patches comprise a current patch. The reconstructing process may include transforming coordinates (x2, y2) of a second point of the current patch in a second coordinate system to coordinates (x1, y1) of a first point of the current patch in a first coordinate system, where the coordinates (x1, y1) of the first point of the current patch in the first coordinate system may be obtained based on the coordinates (x2, y2) of the second point of the current patch in the second coordinate system and a transform matrix.

A point cloud decoding method related to the field of coding technologies and includes reconstructing a point cloud comprising one or more patches. The one or more patches comprise a current patch. The reconstructing process may include transforming coordinates (x2, y2) of a second point of the current patch in a second coordinate system to coordinates (x1, y1) of a first point of the current patch in a first coordinate system, where the coordinates (x1, y1) of the first point of the current patch in the first coordinate system may be obtained based on the coordinates (x2, y2) of the second point of the current patch in the second coordinate system and a transform matrix.

Image super-resolution (SR) generally enhance the resolution of images. One of SR's main challenge is discovering mappings between low-resolution (LR) and high-resolution (HR) image patches. The invention learns patch upscaling projection matrices from a training set of images. Input images are divided into overlapping patches, which are normalized and transformed to a defined orientation. Different transformations can be recognized and dealt with by using a simple 2D-projection. The transformed patches are clustered, and cluster specific upscaling projection matrices and corresponding cluster centroids determined during training are applied to obtain upscaled patches. The upscaled patches are assembled to an upscaled image.

A method, at a display control device, for transforming image data, the method comprising receiving portions of image data from a host device, wherein the portions of image data are based on tiles of an image, wherein the image comprises tiles in a tile order, each tile comprising pixels in a pixel order, and receiving display order information provided by host device, wherein the display order information provides an order for providing the portions of image data to a display device and generating different image data having a different tile order based on the display order information, and a different pixel order and providing the different image data the display device for displaying a transformed image.

An image processing apparatus includes a ring buffer memory configured to store a partial image representing part of a block image obtained by dividing a band image obtained by dividing a scanned image in a unit of a band, further in a unit of a block; a memory control unit configured to control a storage status of the partial image in the ring buffer memory, a processing unit configured to perform rotation processing on the partial image stored in the ring buffer memory and output a rotated partial image, and a combining unit configured to combine a plurality of the rotated partial images outputted from the processing unit and output a rotated block image corresponding to the block image before being divided.

An image processing apparatus includes a ring buffer memory configured to store a partial image representing part of a block image obtained by dividing a band image obtained by dividing a scanned image in a unit of a band, further in a unit of a block; a memory control unit configured to control a storage status of the partial image in the ring buffer memory, a processing unit configured to perform rotation processing on the partial image stored in the ring buffer memory and output a rotated partial image, and a combining unit configured to combine a plurality of the rotated partial images outputted from the processing unit and output a rotated block image corresponding to the block image before being divided.