Computational and Biological Vision Course, Semester A, 2006 2.3.06 Rinat Gotsulsky, 040371163 Roni Rabi, 037668118 2/3/2006 Rinat & Roni Segment Painter

Our Goal: Segmentation Painter Tool 2/3/2006 Rinat & Roni Segment Painter

Rinat & Roni Segment Painter Background 2/3/2006 Rinat & Roni Segment Painter

Perceptual Organization The ability of people to perceive structure in images exists apart from both the perception of 3D and from the recognition of familiar objects. The action of organize the data even when we have no idea about the picture meaning is important to the Computational Vision and can help to analyze models (known & unknown) We focus on Segmentation- one of its issues. 2/3/2006 Rinat & Roni Segment Painter

Rinat & Roni Segment Painter Segmentation The approach is to divide a single picture into components, objects, text, shading, colors etc. We are trying to imitate the evolution solution to this approach. Splitting an image into segments can be an extremely hard problem. There are no unique definition and one picture can be explicit in billions ways. 2/3/2006 Rinat & Roni Segment Painter

Rinat & Roni Segment Painter Example: 2/3/2006 Rinat & Roni Segment Painter

Where do we enter the picture? 2/3/2006 Rinat & Roni Segment Painter

Rinat & Roni Segment Painter SegmentPainter Tool We developed a toolkit enable people to separate picture to segments. It enable us to learn about this process and later to apply this approach in computers systems. 2/3/2006 Rinat & Roni Segment Painter

The SegmentPainter Tool 2/3/2006 Rinat & Roni Segment Painter

Rinat & Roni Segment Painter The SegmentPainter Tool 2/3/2006 Rinat & Roni Segment Painter

SegmentPainter Tool- technical details The project is cross platform- written in Java language More then 3000 code line Support the following actions: File new, open, save, save as, close and exit. Support in 4 recent files. Support BMP, JPG, GIF and JPEG images Support painting lines, curves and free hands (mouse motion) Support 12 different colors 2/3/2006 Rinat & Roni Segment Painter

Rinat & Roni Segment Painter A short experiment on how people interrupt pictures Population: 3 groups of people: Students who take this course. Students who didn’t take and studding CS. Other student (from other department). Experiment: 6 people paint their segments interpretation of 3 pictures. 2/3/2006 Rinat & Roni Segment Painter

Rinat & Roni Segment Painter Results 2/3/2006 Rinat & Roni Segment Painter

Rinat & Roni Segment Painter 2 Cs students that take vision course 2 Cs students with on vision course 2 Cs students out “Teva” department 2/3/2006 Rinat & Roni Segment Painter

Rinat & Roni Segment Painter 2 Cs students that take vision course 2 Cs students with on vision course 2 Cs students out “Teva” department 2/3/2006 Rinat & Roni Segment Painter

Rinat & Roni Segment Painter 2 Cs students that take vision course 2 Cs students with on vision course 2 Cs students out “Teva” department 2/3/2006 Rinat & Roni Segment Painter

Rinat & Roni Segment Painter Conclusions 2/3/2006 Rinat & Roni Segment Painter

Rinat & Roni Segment Painter Segmentation : In our small research there is no one explanation for a paint. The segmentation was similar in all of the groups and maybe its from the fact that we see and investigate picture all the time and not because experience and learning of computational vision. Its not obvious to segment picture – its not a well done algorithm. 2/3/2006 Rinat & Roni Segment Painter

Rinat & Roni Segment Painter Program SegmentPainter : There are few must features that need to be added to our toolkit. The mousses in computers lab must be replaced to better ones (optics). Segmentation is very difficult to draw. The Segmentation take a long time. Need a good qualifications in painting to draw a segment picture. 2/3/2006 Rinat & Roni Segment Painter

Rinat & Roni Segment Painter Thanks for interesting course 2/3/2006 Rinat & Roni Segment Painter