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7 Identification and Classification
Pages 50-56

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From page 50...
... , David Jacobs, Serge Belongie (Cornell Tech) , and Gunasekaran Seetharaman (Air Force Research Laboratory)
From page 51...
... Now, more rapid data acquisition is possible via imaging, but the processing time by humans has increased, resulting in little net improvement in overall analysis time, although the photographic record is very valuable. He described a representative data survey of the Moorea Coral Reef Long-Term Ecological Research Site: 1,250 images were hand annotated with more than 250,000 annotations.
From page 52...
... He also described future work, which involves larger-scale use of automatic im age annotation, leveraging CoralNet data, improving recognition techniques, and adding 3D reconstruction. CLASSIFYING LEAVES USING SHAPE David Jacobs, University of Maryland, College Park David Jacobs explained that he uses species identification techniques to identify tree species.
From page 53...
... Jacobs is also working to classify birds in a developing application called Birdsnap.3 FINE-GRAINED VISUAL CATEGORIZATION WITH HUMANS IN THE LOOP Serge Belongie, Cornell Tech Serge Belongie described work that is part of a larger effort, known as Visipedia,4 in which users can search a visual encyclopedia by image. Visipedia is designed to be the visual equivalent of Wikipedia.
From page 54...
... The Birds-200 data set5 was the first developed by the CalTech Vision Group, and a new data set, CCUB NABirds 700,6 is planned for release later this year and includes input from an ornithologist. Re searchers ask crowdsourced volunteers to label the presence or absence of birds in images, draw bounding boxes around each bird, and label individual parts of the birds (such as breast patterns, crown color, beak shape, and wing color)
From page 55...
... TRACKING VEHICLES IN LARGE-SCALE AERIAL VIDEO OF URBAN AREAS Gunasekaran S Seetharaman, Air Force Research Laboratory Gunasekaran Seetharaman explained that the Air Force Research Laboratory (AFRL)
From page 56...
... , which is most suitable for low frame-rate imagery, models the target with a set of color, texture, and shape feature descriptors, then computes the match likelihoods for each feature by comparing the target to a local search image through a sliding window. This method helps inject contextual information (i.e., other knowledge about the dynamics of the field of regard)


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