Paper Reading #7- Kinect to Architecture

Kinect to Architecture

The beginnings of the article is pretty similar to the other articles I have covered so far so in this review I will focus on its last section: the user study.  The group of participants were given a trial to complete two separate times.  The first time the users had to use the Kinect based gesture system to guide an avatar to grab several rings.  The second time the users had to use a keyboard which had the gestures mapped to various keys. The locations of the rings were randomized but the general distance was not so that there was no noise in the difference between the trials.  Afterwards, the users were given a survey that measured their satisfaction of each gesture. The trials measured the following parameters: accuracy, responsiveness, and memorability.  The surveys asked the users about these: ease of use and "fatigueness" (i.e. how tiring any particular gesture was).

Source: http://www.ivs.auckland.ac.nz/ivcnz2011_temp/uploads/1543/2-Kinect_to_Architecture_v2.pdf

Paper Reading-Recovering Missing Depth Info.

Recovering Missing Depth Information from Microsoft’s Kinect


As with all of these papers for some reason, the authors spend the first page describing the history of the Kinect and why they chose it.  According to the authors, no previous work has been published concerning the topic they address: recovering missing depth information from the Microsoft Kinect.  Apparently, the Kinect and other "time-of-flight," devices lose lots of data while capturing and compressing video data.  The authors retrieve the missing depth data by a process of RGBD segmentation and the Hough transform voting scheme.





Source:

http://www.contrib.andrew.cmu.edu/~ammarh/projects/vis_project.pdf

Paper Reading- UI Evaluation

A Gesture Controlled User Interface for Inclusive Design and Evaluative Study of Its Usability


I choose this paper to evaluate because its material deviated from the normal type of article our group has blogged about.  This paper was discussing an evaluation system of a user interface for a gesture recognition program.  Considering that our project is similar, even though the methods of capturing the gestures are different, I felt that it would be beneficial to us to study how other people completed user studies and evaluated them.

The first third of the paper is focused on previous works and the development of "GCUI" technology, or Gesture Controlled User Interfaces.  It goes on to note that with introduction of this technology into the games industry, the increased desire for it has drove prices down to levels that precipitate researchers to expand upon this subject with much more interest than in the past.

The meat of the paper contains the most useful information to our group.  It has an evaluation and discussion of popular research methodology, specifically pertaining to the evaluation of success of the project.  The paper espouses both qualitative and quantitative approaches as valid options, each with their benefits and detractions.  The specifics of the evaluation methods I will leave in the paper, it would be pointless to rewrite what they have done, but when it comes time to perform these evaluations for our own project, I plan to revisit this paper and use it as an inspiration or as help when crafting our own user studies or surveys.



Source:
http://www.scirp.org/journal/PaperDownload.aspx?paperID=7503&returnUrl=http://www.scirp.org%2Fjournal%2FHome.aspx%3FIssueID%3D1069