Image transmission method, device, and computer-readable storage medium storing image transmission program

#This application is based upon and claims the benefit of priority of the prior Japanese Patent Application No. 2010-267996, filed on Dec. 1, 2010, the entire contents of which are incorporated herein by reference.

#The embodiments discussed herein are related to an image transmission method, an image transmission device that transmits an image, and an image transmission program.

#Conventionally, an information processing system to which a plurality of information processing apparatuses is coupled through a network has been used. The information processing system includes a system in which an information processing apparatus as a client device acquires data used for processing at the client device from an information processing apparatus as a server device and the client device requests processing to the server device.

#These and/or other aspects and advantages will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawing of which:

#FIG. 1 illustrates an information processing system according to a first embodiment;

#FIG. 2 illustrates a thin client system according to a second embodiment;

#Verifications by the inventors reveal additional drawbacks described hereunder. Resolution of a display device of a client device and resolution of a screen that a server device provides to the client device may sometimes differ. For example, when a mobile terminal device is used as a client device, a display device of the mobile terminal device is often small. Thus, displaying a full screen provided by the server device is sometimes difficult to be displayed on the display device.

#To address the above-described issue, displaying a portion of the full screen on the display device of the client device and scrolling the display area may be considered. Retaining typically still image information that indicates a current display area (or including the peripheral part) by the client device is efficient in terms of memory usage. In this case, when a scroll operation for an area for which still image information is not retained is accepted, the client device acquires the still image information for the area from the server device and displays the area.

#However, if frequency to update the screen is high (for example, a long distance is scrolled) in the above-described method, there is a drawback that changing the screen to follow the scroll operation may be delayed. For example, processing to receive and display still image information individually may frequently occur during scroll operations at the client device, and this may cause an operation response delay. Especially when a data amount of individual still image information increases, processing load for each still image information increases and the drawback becomes significant.