Research Article

Kernel-Based Multiview Joint Sparse Coding for Image Annotation

Table 1

Comparison of predicted labels with ground-truth annotations for images from Corel5K, IAPRTC12, and MIRFlickr25K datasets. Italic labels are the difference between predicted and ground-truth labels while some of them are also relevant to the image.

Images from Corel5K
Ground truthsCow, bulls, antlers, elkGrass, ruins, stone, columnCoral, anemone, ocean, reefsGrass, bear, polar, tundraCars, tracks, turn, prototype
Predicted labelsMeadow, cow, bulls, elk, antlersRuins, stone, palace, column, grassCoral, anemone, ocean, reefs, flowersGrass, bear, polar, tundra, treeCars, tracks, turn, prototype, birds

Images from IAPRTC12
Ground truthscloth, front, girl, hat, wallcourt, man, player, tennisbeach, boat, fog, man, sea, towerbush, cloud, group, hill, island, lake, people, skychurch, lamp, night, sky, square, street, tower
Predicted labelsfront, girl, hat, jacket, wallcourt, man, player, tennis, netbeach, boat, fog, man, peoplegroup, hill, island, lake, photocathedral, lamp, night, square, street

Images from MIRFlickr25K
Ground truthsanimals, bird, , clouds, plant_life, sky, structures, sunset, treeplant_life, structures, tree, flower, , night, plant_lifeanimals, plant_life, structures, tree, watercar, , plant_life, sky, structures, transport, tree
Predicted labelsclouds, plant_life, sky, structures, treeplant_life, sky, structures, tree, flower, , plant_life, indoor, nightanimals, plant_life, tree, sky, structuresindoor, structures, plant_life, sky, tree