17 research outputs found
Pushing the Boundaries of Boundary Detection using Deep Learning
In this work we show that adapting Deep Convolutional Neural Network training
to the task of boundary detection can result in substantial improvements over
the current state-of-the-art in boundary detection.
Our contributions consist firstly in combining a careful design of the loss
for boundary detection training, a multi-resolution architecture and training
with external data to improve the detection accuracy of the current state of
the art. When measured on the standard Berkeley Segmentation Dataset, we
improve theoptimal dataset scale F-measure from 0.780 to 0.808 - while human
performance is at 0.803. We further improve performance to 0.813 by combining
deep learning with grouping, integrating the Normalized Cuts technique within a
deep network.
We also examine the potential of our boundary detector in conjunction with
the task of semantic segmentation and demonstrate clear improvements over
state-of-the-art systems. Our detector is fully integrated in the popular Caffe
framework and processes a 320x420 image in less than a second.Comment: The previous version reported large improvements w.r.t. the LPO
region proposal baseline, which turned out to be due to a wrong computation
for the baseline. The improvements are currently less important, and are
omitted. We are sorry if the reported results caused any confusion. We have
also integrated reviewer feedback regarding human performance on the BSD
benchmar
ΠΡΠΎΠ³ΡΠ°ΠΌΠ½Π° ΡΠΈΡΡΠ΅ΠΌΠ° Π΄Π»Ρ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ ΠΏΠ°ΡΠ°Π»Π΅Π»ΡΠ½ΠΈΡ Π°Π»Π³ΠΎΡΠΈΡΠΌΡΠ² Π· Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½ΡΠΌ ΠΎΠ±ΡΠΈΡΠ»Π΅Π½Ρ Π½Π° Π³ΡΠ°ΡΡΡΠ½ΠΎΠΌΡ ΠΏΡΠΎΡΠ΅ΡΠΎΡΡ
Π ΠΎΠ·ΡΠΎΠ±Π»Π΅Π½ΠΎ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠ½Π΅ Π·Π°Π±Π΅Π·ΠΏΠ΅ΡΠ΅Π½Π½Ρ Π΄Π»Ρ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ ΠΏΠ°ΡΠ°Π»Π΅Π»ΡΠ½ΠΈΡ
Π°Π»Π³ΠΎΡΠΈΡΠΌΡΠ² ΡΠ΅Π³ΠΌΠ΅Π½ΡΠ°ΡΡΡ Π·ΠΎΠ±ΡΠ°ΠΆΠ΅Π½Ρ Π· Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½ΡΠΌ ΠΎΠ±ΡΠΈΡΠ»Π΅Π½Ρ Π½Π° Π³ΡΠ°ΡΡΡΠ½ΠΎΠΌΡ ΠΏΡΠΎΡΠ΅ΡΠΎΡΡThe software for the study of parallel algorithms for image segmentation using computation on GPUs is developed and presente
Π ΠΏΠΎΠ΄ΡΠΈΡΡΠ΅ΠΌΠ΅ Π°Π΄Π°ΠΏΡΠ°ΡΠΈΠΈ ΠΈΠ½ΡΠ΅ΡΡΠ΅ΠΉΡΠ° Π΄Π»Ρ Π»Π΅ΠΊΡΠΈΠΊΠΎΠ³ΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠΊΡΠ°ΠΈΠ½ΠΎ-ΡΡΡΡΠΊΠΎ-Π°Π½Π³Π»ΠΈΠΉΡΠΊΠΎΠ³ΠΎ ΡΠ»ΠΎΠ²Π°ΡΡ Ρ ΡΡΠ΅ΡΠΎΠΌ ΠΈΠ½Π΄ΠΈΠ²ΠΈΠ΄ΡΠ°Π»ΡΠ½ΡΡ ΠΏΡΠΈΡ ΠΎΡΠΈΠ·ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠ΅ΠΉ Π»ΠΈΡΠ½ΠΎΡΡΠΈ
ΠΡΠΎΠ΄Π΅ΠΌΠΎΠ½ΡΡΡΠΈΡΠΎΠ²Π°Π½Π° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ Π°Π΄Π°ΠΏΡΠ°ΡΠΈΠΈ ΠΈΠ½ΡΠ΅ΡΡΠ΅ΠΉΡΠ° Π΄Π»Ρ Π»Π΅ΠΊΡΠΈΠΊΠΎΠ³ΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ»ΠΎΠ²Π°ΡΡ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΈΠ½Π΄ΠΈΠ²ΠΈΠ΄ΡΠ°Π»ΡΠ½ΡΡ
ΠΏΡΠΈΡ
ΠΎΡΠΈΠ·ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΡΡ
ΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°ΡΠ΅Π»ΡThe work is devoted to adapting the interface to the lexicographic dictionary based on individual psychophysiological characteristics of the use
ΠΡΠΎΠ³ΡΠ°ΠΌΠ½Π° ΡΠΈΡΡΠ΅ΠΌΠ° Π΄Π»Ρ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ ΠΏΠ°ΡΠ°Π»Π΅Π»ΡΠ½ΠΈΡ Π°Π»Π³ΠΎΡΠΈΡΠΌΡΠ² Π· Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½ΡΠΌ ΠΎΠ±ΡΠΈΡΠ»Π΅Π½Ρ Π½Π° Π³ΡΠ°ΡΡΡΠ½ΠΎΠΌΡ ΠΏΡΠΎΡΠ΅ΡΠΎΡΡ
Π ΠΎΠ·ΡΠΎΠ±Π»Π΅Π½ΠΎ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠ½Π΅ Π·Π°Π±Π΅Π·ΠΏΠ΅ΡΠ΅Π½Π½Ρ Π΄Π»Ρ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ ΠΏΠ°ΡΠ°Π»Π΅Π»ΡΠ½ΠΈΡ
Π°Π»Π³ΠΎΡΠΈΡΠΌΡΠ² ΡΠ΅Π³ΠΌΠ΅Π½ΡΠ°ΡΡΡ Π·ΠΎΠ±ΡΠ°ΠΆΠ΅Π½Ρ Π· Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½ΡΠΌ ΠΎΠ±ΡΠΈΡΠ»Π΅Π½Ρ Π½Π° Π³ΡΠ°ΡΡΡΠ½ΠΎΠΌΡ ΠΏΡΠΎΡΠ΅ΡΠΎΡΡThe software for the study of parallel algorithms for image segmentation using computation on GPUs is developed and presente
Learning-Based Symmetry Detection in Natural Images
International audienceIn this work we propose a learning-based approach to sym- metry detection in natural images. We focus on ribbon-like structures, i.e. contours marking local and approximate reflection symmetry and make three contributions to improve their detection. First, we create and make publicly available a ground-truth dataset for this task by build- ing on the Berkeley Segmentation Dataset. Second, we extract features representing multiple complementary cues, such as grayscale structure, color, texture, and spectral clustering information. Third, we use super- vised learning to learn how to combine these cues, and employ MIL to accommodate the unknown scale and orientation of the symmetric struc- tures. We systematically evaluate the performance contribution of each individual component in our pipeline, and demonstrate that overall we consistently improve upon results obtained using existing alternatives
Π‘ΠΈΡΡΠ΅ΠΌΠ° ΡΠΎΠ·ΠΏΡΠ·Π½Π°Π²Π°Π½Π½Ρ Π°ΡΡ ΡΡΠ΅ΠΊΡΡΡΠ½ΠΈΡ Π΅Π»Π΅ΠΌΠ΅Π½ΡΡΠ² Π½Π° ΠΎΡΠ½ΠΎΠ²Ρ Π½Π΅ΠΉΡΠΎΠ½Π½ΠΈΡ ΠΌΠ΅ΡΠ΅ΠΆ
ΠΠ°ΠΊΠ°Π»Π°Π²ΡΡΡΠΊΠ° ΡΠΎΠ±ΠΎΡΠ° ΠΌΡΡΡΠΈΡΡ ΠΎΠΏΡΠΈΠΌΡΠ·Π°ΡΡΡ Π·Π°Π΄Π°ΡΡ ΡΠΎΠ·ΠΏΡΠ·Π½Π°Π²Π°Π½Π½Ρ Π°ΡΡ
ΡΡΠ΅ΠΊΡΡΡΠ½ΠΈΡ
Π΅Π»Π΅ΠΌΠ΅Π½ΡΡΠ² ΡΠ° ΡΠΎΡΠΌΡΠ²Π°Π½Π½Ρ Π½Π°Π±Π»ΠΈΠΆΠ΅Π½ΠΎΡ Π²Π°ΡΡΠΎΡΡΡ Π½Π΅ΡΡΡ
ΠΎΠΌΠΎΡΡΡ. Π ΠΎΠ·ΡΠΎΠ±Π»Π΅Π½ΠΎ Π°Π»Π³ΠΎΡΠΈΡΠΌ Π΄Π»Ρ ΠΏΡΠ΄Π²ΠΈΡΠ΅Π½Π½Ρ ΡΠΎΡΠ½ΠΎΡΡΡ ΡΠΎΠ·ΡΠ°Ρ
ΡΠ½ΠΊΡΠ².Bachelor's work contains optimization of the task of recognizing architectural elements and forming the approximate cost of real estate. An algorithm is developed for increasing the accuracy of calculations.ΠΠ°ΠΊΠ°Π»Π°Π²ΡΡΠΊΠ°Ρ ΡΠ°Π±ΠΎΡΠ° ΡΠΎΠ΄Π΅ΡΠΆΠΈΡ ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΡ Π·Π°Π΄Π°ΡΠΈ ΡΠ°ΡΠΏΠΎΠ·Π½Π°Π²Π°Π½ΠΈΡ Π°ΡΡ
ΠΈΡΠ΅ΠΊΡΡΡΠ½ΡΡ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠΎΠ² ΠΈ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠΈΠ±Π»ΠΈΠΆΠ΅Π½Π½ΠΎΠΉ ΡΡΠΎΠΈΠΌΠΎΡΡΠΈ Π½Π΅Π΄Π²ΠΈΠΆΠΈΠΌΠΎΡΡΠΈ. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½ Π°Π»Π³ΠΎΡΠΈΡΠΌ Π΄Π»Ρ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΡ ΡΠΎΡΠ½ΠΎΡΡΠΈ ΡΠ°ΡΡΠ΅ΡΠΎΠ²