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Detail
Registered APPARATUS AND METHOD FOR EXTRACTING SALIENT LINE FOR INFORMATION SIGN
- Inventors
- Seung Jun Han, Jeong Dan Choi, Park Sangheon, Min Kyoung-Wook, Sung Kyung Bok
- Application No.
- 15365630 (2016.11.30)
- Publication No.
- 20170255839 (2017.09.07)
- Registration No.
- 10438087 (2019.10.08)
- Country
- UNITED STATES
- Project Code
- 15GC1300, 시각장애인 보행편의 및 안전향상기술 개발, Kim Ju Wan
- Abstract
- Provided are an apparatus and method for extracting a salient line for an information sign. The apparatus includes an image input portion configured to receive an image including information indication lines to be detected, a signal calculator configured to generate a symmetric function signal consistent with a thickness and a direction of an information indication line having a preset thickness in the received image and perform a convolution of the information indication line and the generated symmetric function signal, a highest value enhancement portion configured to enhance highest values in results of the convolution using a signal quality improvement filter, and a local highest value extractor configured to find local highest values among the enhanced highest values and extract a line connecting the local highest values as a salient line connecting center points in the information indication line.
- KSP Keywords
- Center point, Quality improvement, Signal quality, Symmetric function