Lip print recognition based on DTW algorithm

DTW and Voting-Based Lip Print Recognition System

“…For this reason, the lip print image, I, should be enhanced and all of its artefacts removed. Many lip print feature extraction algorithms have been reported in the literature [1,[6][7][8][9][10][11][12][13]. In this paper, a new approach to lip print extraction and analysis is presented.…”

“…In practice, the image is processed by each structural element and the processed image then subtracted from the original image. In the proposed approach, flat, diskshaped structural elements were applied [9]. The purpose of this procedure is to emphasize the lines of the lip pattern and to separate them from their background.…”

“…Hence, the conformity of any two images can be determined by applying the DTW method. This approach was described in detail and successfully applied in a previous paper [7,9]. For the two images that are to be compared, first their histograms are generated.…”

“…Some of identifiers mentioned above are captured by police technicians directly from crime scenes. Latent lip prints can be also successfully collected [9,10,11,13]. If properly captured and examined, the material left at a crime scene can contain useful data leading to personal identification.…”

“…This is the method of capture that we utilized during our investigations, as it allows for the lip images to capture more precise textures. These techniques have been described in a number of papers [2,[6][7][8][9][10][11][12][13]. The recognition results reported in the aforementioned papers have now been significantly improved.…”