Change Blind Information Display for Ubiquitous Computing Environments Professor: Liu Student: Ruby.

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Presentation transcript:

Change Blind Information Display for Ubiquitous Computing Environments Professor: Liu Student: Ruby

Motive & Purpose Motive –Today, we most environments don’t have compact network for output devices to built strong feelings of information overload. Purpose –Creating a bit can accepts requests to display information for multiple application and controls how the information is presented to minimize visual breakdown to users.

Introduction “Calm” environments –Do not cause information overload. The context-aware systems will increase human-computer information flow without contributing of information overload. (Abowd and Mynatt, 2000)

Two strategies for minimizing information overload Using context to infer user intent and actively present information such as context-sensitive help. Shifting information from the user’s focus of attention to the user’s visual and auditory around.

A present-day scenario If you are in a meeting with 10 other busy people, and everyone has cell phones. What would you like the other people in the room have their devices set their phone? (a)-silent notification of incoming messages (e.g. via vibration) (b)-audible notification (e.g. via unique rings)

A future (worst-case) scenario

Many interfaces and information environments are not created based on a single, connected vision of information should be best transport to people. Future home may fill dynamic and stimulus-inducing information into the environments, filling all available display space.

Related work Calm technology –Combine both the center and the around of our attention and allows information to move back and forth between the two. Using technology to create interpretive clues in the around can help people quickly make decisions, ease communication.

Related work The window helps the office user keep awareness of office activity in a calm fashion which can avoids direct messages. Changing information in the user’s around preserves a sense of calm better than alerting the user of changes directly.

Creating calm by minimizing perceived change Visual stimuli changes cause the eyes to quickly move, or saccade in order to attend to the motion transient. Every people in a future computing environment may want to have information displayed nearby: –(1) stays current. –(2) is sometimes augmented on the relevant objects as the user moves about the space. –(3) changes based upon what the user is actually doing.

Using change blindness Change blindness is the inability to detect changes between two images or image sequences. A complete mental representation of a scene is never constructed in memory which cause the changing blindness. Change blindness can be used by the context- aware user interface designer to minimize detectable change within a environment.

Blanking an image The viewers have difficulty even being told that a change has definitely occurred.

Changing views & Displaying “mud splashes” Controlled change blindness studies have shown that changes such as switching out actors and clothing type or color are often not detected. Any visual distracter will disrupt peripheral visual processing and permit changes to go undetected.

Changing information slowly

Occlusion has also been shown to be an effective method for masking motion transients. change blindness researchers believe that motion transient masking should occur for both visual and auditory signals and have called for studies on “change deafness”.

Limitations Some messages will create motion transients, and to fully use the technique will require object and people tracking which can not avoid. Change detection time for central interest objects is fast inattentive of object color, position, and presence/absence.

Limitations Location changes are significantly less likely to be identified than addition and color changes. Masked deletion of a only object is easier to identify than addition of an object not present in the first scene. Change blindness studies subjects are typically told that changes will occur and yet often have great difficulty seeing them.

Discussion Change blind user interface design has the possible to allow for the creation of future ubiquitous computing environments.