Saturday, December 18, 2010

Reading #27: K-sketch: A 'Kinetic' Sketch Pad for Novice Animators (Davis)

Summary

This work is about a system to help novice users create animations quickly. The system is called K-Sketch and is a 2D animation sketching system.

In this system users first sketch objects and next create animations for those drawn objects such as translation, scaling and rotation.

Discussion

This is similar to Flash’s tween capabilities and can be incorporated there

Reading #29: Scratch Input Creating Large, Inexpensive, Unpowered and Mobile Finger Input Surfaces (Harrison)

Summary

In this paper a new form of inputting sketch is assessed which is through the sound of fingernails upon a textured surface such as wood. They employ a stethoscope for this purpose which can be attached to walls and tables.
They evaluated their system on a hand designed set of gestures which consisted of six gestures. The accuracy over that set was about 90%

Discussion

I am really not optimistic about the prospect of this type of work, while the electronic input devices prices are dropping, why reverting back to this unreliable method. I think more compelling reasons are necessary

Reading #26: Picturephone: A Game for Sketch Data Capture (Johnson)

Summary

This work is a sketch-based game for collecting data on how people make and describe sketches. The system described collects drawings and attach the meta description the users provided.

To score points in this game, users must reconstruct a drawing based on a text description or vice-versa. In another phase, users are asked to judge the work of other players.

Discussion

This paper is quite similar to the previous sketch game paper. But the idea is still fine.

Reading #25: A Descriptor for Large Scale Image Retrieval Based on Sketched Feature Lines (Eitz)

Summary

This paper presents basically an image search where the input image is a sketch. The sketch is actually the edges of the image to be searched for. The feature of the images to which the sketch is compared is edge histogram.

It took 3 seconds to search a 1.5 million image bank which is a good performance I think.

Discussion

The image comparison and image search solutions are becoming more widely used and those which rely on the edges can use sketch as their query since a sketch can be considered the edges of an image

Reading #24: Games for Sketch Data Collection (Johnson)

Summary

The authors implemented a multi player sketching game in order to gather sketch data. One is called Picturephone and the other is Stellasketch.

In Picturephone, one player describes a sketch and the other draws it. In Stellasketch, players label a sketch drawn by a user individually. Finally, players rate various drawings to identify similarities

In Stellasketch a player draws something based on a clue and other players identify the sketch privately.

Discussion

Both games seem fun to play especially Picturephone which is a sketch version of the telephone game.

Reading #23: InkSeine: In Situ Search for Active Note Taking (Hinckley)

Summary

This paper is about a Tablet PC application called InkSeine which supports active note taking by coupling a pen-and-ink interface with an in situ search facility that flows directly from a user’s ink notes.

Their user study showed users interest in having search results available in the context of surrounding notes and appreciate the ability to break searches down into multiple episodes so as to maintain attention on the primary note taking taks

Discussion

This paper is a good human centered design project. I also think abandoning mouse and keyboard in favor of pen based interface must be accelerated.

Friday, December 17, 2010

Reading #22: Plushie: An Interactive Design System for Plush Toys (Mori)

Summary

Yet another paper on generating 3D models from 2D sketches.However this one is even more fun. It not only let the user to generate 3D meshes, but also let them alter its texture by which the user has a better idea of the final product.

This system was used to create new plush toys and was also tested on small kids

Discussion

It is amazing that children connected to this program and it shows success