Image data transmission method, image data processing method, image processing device and display device

An image data processing method for use in a display device capable of being in communication with an image processing device, comprising:

• receiving image data of a to-be-displayed image from the image processing device, and acquiring image data at a first resolution corresponding to a fixation region and image data at a second resolution corresponding to a non-fixation region in accordance with the image data of the to-be-displayed image, the first resolution being greater than the second resolution;
• and
• scaling up the image data at the second resolution, stitching the resultant image data at the second resolution with the image data at the first resolution, and outputting and displaying the stitched image data,
• wherein the step of acquiring the image data at the first resolution corresponding to the fixation region and the image data at the second resolution corresponding to the non-fixation region in accordance with the image data of the to-be-displayed image comprises:
• in the case that the second resolution is x*y, the first resolution is X*Y and X>x, extracting image data in a first row to a Yth row as the image data at the first resolution from image data at a resolution of X*(Y+y) of the received to-be-displayed image, and extracting image data in previous x columns of image data in a (Y+1)th row to a (Y+y)th row as the image data at the second resolution;
• or
• extracting the image data in the first row to the Yth row as the image data at the first resolution from the image data at the resolution of X*(Y+y) of the received to-be-displayed image, and extracting image data in last x columns of the image data in the (Y+1)th row to the (Y+y)th row as the image data at the second resolution.

An image data transmission device for use in an image processing device capable of being in communication with a display device, comprising:

• an acquisition circuit configured to acquire a fixation region and a non-fixation region on a display screen of the display device;
• a compression circuit configured to compress image data of a to-be-displayed image corresponding to the non-fixation region to acquire image data at a second resolution;
• and
• a transmission circuit configured to combine the image data at the second resolution with image data of the to-be-displayed image at a first resolution corresponding to the fixation region, and output the combined image data to the display device, the first resolution being greater than the second resolution,
• wherein the transmission circuit is further configured to, in the case that the second resolution is x*y, the first resolution is X*Y and X>x, combine the image data at the second resolution with the image data at the first resolution so as to acquire image data at a resolution of X*(Y+y),
• wherein in the combined image data at the resolution of X*(Y+y), image data in a first row to a Yth row is the image data at the first resolution, image data in previous x columns of image data in a (Y+1)th row to a (Y+y)th row is the image data at the second resolution, and image data in an (x+1)th column to an Xth column of the image data in the (Y+1)th row to the (Y+y)th row is invalid image data;
• or the image data in the first row to the Yth row is the image data at the first resolution, image data in last x columns of the image data in the (Y+1)th row to the (Y+y)th row is the image data at the second resolution, and image data in a first column to an (X−x)th column of the image data in the (Y+1)th row to the (Y+y)th row is invalid image data.

An image data processing device for use in a display device capable of being in communication with an image processing device, comprising:

• a reception circuit configured to receive image data of a to-be-displayed image from the image processing device, and acquire image data at a first resolution corresponding to a fixation region and image data at a second resolution corresponding to a non-fixation region in accordance with the image data of the to-be-displayed image, the first resolution being greater than the second resolution;
• and
• a processing circuit configured to scale up the image data at the second resolution, stitch the resultant image data at the second resolution with the image data at the first resolution, and output and display the stitched image data,
• wherein the reception circuit is further configured to:
• in the case that the second resolution is x*y, the first resolution is X*Y and X>x, extract image data in a first row to a Yth row as the image data at the first resolution from image data at a resolution of X*(Y+y) of the received to-be-displayed image, and extract image data in previous x columns of image data in a (Y+1)th row to a (Y+y)th row as the image data at the second resolution;
• or
• extract the image data in the first row to the Yth row as the image data at the first resolution from the image data at the resolution of X*(Y+y) of the received to-be-displayed image, and extract image data in last x columns of the image data in the (Y+1)th row to the (Y+y)th row as the image data at the second resolution.