Scanner redirection method with chunk-based image reconstruction using chunk identifiers

A non-transitory computer-readable medium comprising instructions that are executable in a remote desktop system that includes a client computer and a remote computer, wherein the client computer has a remote desktop session with the remote computer, wherein the client computer transmits actions by a user of the client computer to the remote computer to update a remote desktop of the remote desktop session, and the remote computer transmits images of the remote desktop to the client computer, and wherein the instructions when executed cause the remote desktop system to carry out a scanner redirection method comprising:

• transmitting, by the remote computer in response to a selection communicated by the client computer to the remote computer, a request to the client computer, the request by the remote computer to the client computer indicating to acquire a first image from a flatbed scanner or sheet-fed scanner, and the flatbed scanner or sheet-fed scanner being connected to the client computer;
• in response to receiving image data from the client computer of a first chunk of the first image and an identifier (ID) of the first chunk, storing, by the remote computer, the image data of the first chunk and the ID of the first chunk in association with each other, the first image having been acquired by the client computer from the flatbed scanner or sheet-fed scanner;
• in response to receiving an ID from the client computer of a second chunk of the first image without any associated image data, retrieving, by the remote computer, image data of the second chunk that is stored by the remote computer in association with the ID of the second chunk;
• and
• creating, by the remote computer, the first image using the image data of the first chunk and the retrieved image data of the second chunk.

A remote computer of a remote desktop computer system, wherein the remote desktop computer system includes a client computer and the remote computer, and the client computer has a remote desktop session with the remote computer, wherein the client computer transmits actions by a user of the client computer to the remote computer to update a remote desktop of the remote desktop session, and the remote computer transmits images of the remote desktop to the client computer, and wherein the remote computer is configured to execute on a processor of a hardware platform to:

• transmit, in response to a selection communicated by the client computer to the remote computer, a request to the client computer, the request by the remote computer to the client computer indicating to acquire a first image from a flatbed scanner or sheet-fed scanner, and the flatbed scanner or sheet-fed scanner connected to the client computer;
• in response to receiving image data from the client computer of a first chunk of the first image and an identifier (ID) of the first chunk, store the image data of the first chunk and the ID of the first chunk in association with each other, the first image having been acquired by the client computer from the flatbed scanner or sheet-fed scanner;
• in response to receiving an ID from the client computer of a second chunk of the first image without any associated image data, retrieve image data of the second chunk that is stored by the remote computer in association with the ID of the second chunk;
• and
• create the first image using the image data of the first chunk and the retrieved image data of the second chunk.