| Title: |
Performance Evaluation of Real-time and Scale-invariant LoG Operators for Text Detection |
| Authors: |
Nguyen, Dinh Cong; Delalandre, Mathieu; Conte, Donatello; Pham, The, Anh |
| Contributors: |
Laboratoire d'Informatique Fondamentale et Appliquée de Tours (LIFAT); Université de Tours (UT)-Institut National des Sciences Appliquées - Centre Val de Loire (INSA CVL); Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA); Hong Duc University |
| Source: |
Proceedings of the 14th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications ; 14th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISAPP 2019) ; https://hal.science/hal-02285778 ; 14th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISAPP 2019), Feb 2019, Prague, Czech Republic |
| Publisher Information: |
CCSD |
| Publication Year: |
2019 |
| Collection: |
Université François-Rabelais de Tours: HAL |
| Subject Terms: |
key-points; Text detection; LoG; blobs; DoG; real-time; estimators; repeatability; performance characterization; groundtruthing; stroke model; scale-space; fast Gaussian filtering; [INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV]; [INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV]; [SCCO.COMP]Cognitive science/Computer science; [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing |
| Subject Geographic: |
Prague; Czech Republic |
| Description: |
International audience ; This paper presents a state-of-the-art and a performance evaluation of real-time text detection methods, having particular focus on the family of Laplacian of Gaussian (LoG) operators with scale-invariance. The computational complexity of operators is discussed and an adaptation to text detection is obtained through the scale-space representation. In addition, a groundtruthing process and a characterization protocol are proposed, performance evaluation is driven with repeatability and processing time. The evaluation highlights a near-exact approximation with real-time operators at one to two orders of magnitude of execution time. The real-time operators are adapted to recent camera devices to process high resolution images. Perspectives are provided for operator robustness, optimization and characterization of the detection strategy. |
| Document Type: |
conference object |
| Language: |
English |
| Availability: |
https://hal.science/hal-02285778; https://hal.science/hal-02285778v1/document; https://hal.science/hal-02285778v1/file/2019VISAPP_Log.pdf |
| Rights: |
info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.AE0C3FD6 |
| Database: |
BASE |