Automatic text detection in video frames

... candidate text block. And then the neural network is introduced into the further classification of the text blocks and the non -text blocks in video frames. The idea of bootstrap is introduced into ... the blocks into text blocks and non -text blocks. Thirdly, the Gabor texture features are input as the train samples into the ANN to train the network. The bootstrap is introduced...

Ngày tải lên: 05/11/2012, 14:51

... by conducting experiments using our learner corpus, which contains information on learners’ errors. 1 Introduction One of the most important things in keeping up with our current information-driven ... automatically. In this paper, we introduce a method of detect- ing learners’ errors, and we examine to what ex- tent this could be accomplished using our learner corpus data includin...

Ngày tải lên: 20/02/2014, 16:20

... Effect of Training Data Size In order to allow for rapid examination of multi- ple feature combinations, we restricted the size of the training set (S) to maintain manageable train- ing times. ... models were trained on the {S=4000, H=10} training set. train is less than dev and train: 63% versus 81%, respectively on {S=4000}. 5.5 Preliminary Combination Analysis In a preliminarily invest...

Ngày tải lên: 17/03/2014, 00:20

... processing. 3.3. Moving objects tracking Moving objects tracking requires to match regions detected in two (or more) consecutive frames. In real video, the matching has to deal with false detections ... Reconstruction , Minimax Similarity Function 1. Introduction Moving objects detection in video streams is a key fundamental and critical task in many computer vision appli...

Ngày tải lên: 22/03/2014, 11:20

... containing texts are then obtained using a threshold afterward. Chun et al. [5] extract text regions in video sequences using Fast Fourier Transform operation (FFT) and neural network. In this ... detect text edges in video sequences using a color edge detector and then apply a low threshold to filter out definite non-edge points. Real text edges are detected using an edge-str...

Ngày tải lên: 05/11/2012, 14:51

... Contents Since 1996, Pelco has provided security professionals with technical and product training. The Pelco Global Training Institute offers instructor led courses at three training centers in North ... Helping the world’s businesses keep their buildings, employees, and customers safe and secure is a fast-growing industry. The key security control systems in use today are intrusion...

Ngày tải lên: 14/02/2014, 08:20

... rules from the train- ing text. The DR-DA matrix is created after cluster- ing the sentences into different dialogue acts (DAs), counting the occurrences the DRs in DA, and intro- ducing an entropy-based ... can see that the inference of the user’s overall intention via DA detection is an important task in SDS. Figure 1 depicts the training and test phases of the SLU module and the DM...

Ngày tải lên: 20/02/2014, 05:20

... satirical article beginning Missing Brazilian balloonist Padre spotted strad- dling Pink Floyd flying pig. We include both a continuous representation of v for each article, in the form of log(v(E)), ... unigram appearing on the first line of an article. In this way the heading tokens are represented twice: once in the overall set of uni- grams in the article, and once in the set of h...

Ngày tải lên: 20/02/2014, 09:20

... must be minor). In the character-based algorithm, for example, this is im- plicit in the assumption that the number of charac- ters of the SL text at each point (counting from the beginning of ... assigned to the assumption that a certain segment in one text has no corresponding segment in the other text. Like- wise, ifj and j+ 1 are insertions to the other text the sco...

Ngày tải lên: 22/02/2014, 10:20

... through- put increase for the same 8× increase in nodes. To further ascertain the impact of the individual design elements, we executed TATP again using the HR+ design but alternatively removing: (1) ... scheduling problems with earliness and tardiness costs. In Principles and Practice of Constraint Programming, volume 2833, pages 817–821, 2003. [19] S. Duan, V. Thummala, and S. Babu. Tun...

Ngày tải lên: 07/03/2014, 14:20