JAVA Code Archives — MATLAB Number ONE

Document Decomposition into Geometric and Logical Layout

global MATLAB — Mon, 21 May 2018 14:04:32 +0000

One popular method of producing aesthetically pleasing PDF documents including diverse contents is LaTeX. LaTeX is a low-level markup and programming language that allows high flexibility for designing placement of text and figures, as well as overall document structure. However, this precision is hard to reproduce; once a PDF document is generated, there is no way in general to […]

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Practical mobile slide-to-lecture-video search system

global MATLAB — Thu, 17 May 2018 11:47:25 +0000

I have combined the previous research on Fisher Vectors and Residual Enhanced Visual Vector to generate compact indices for database images to achieve efficient slide-to-lecture-video search. In order to exploit the temporal redundancy of videos, an augmented database of clean slide images is used instead of the database of video keyframes. Using augmented database has led to 100X memory reduction and […]

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Projecting 2D imagery into a scene using a lightweight markerless tracking method

global MATLAB — Tue, 08 May 2018 07:18:50 +0000

A real-time markerless subject tracking system for projecting 2D imagery into an augmented reality space is proposed using shape and color features to accomplish high computational efficiency and robust detection. The system is implemented on Android devices and is able to run consistently at a speed of around 30FPS. Results suggest that the algorithm is […]

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Android app to do visual image translation

global MATLAB — Thu, 05 Apr 2018 07:55:51 +0000

We built an android app that can do visual image translation. It can detect texts in an image, recognize the words, do translation, and overlay the translated results. The app relieves users burdens of searching word one at a time. We believe this app would be useful for foreign visitors and foreign language learners. We achieved a good accuracy […]

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OpenCV and Java code for digital Image Steganography and Steganalysis

global MATLAB — Tue, 03 Apr 2018 09:56:15 +0000

Steganography is the discipline concerned with achieving confidential communication by hiding information in plain sight. Media for hiding this information include images, video, audio and markup languages. Steganographic schemes typically exploit information redundancies which are not easily perceptible. Digital images tend to exhibit such redundancy, and thus are a popular medium for steganography. Throughout the […]

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Object tracking via adaptive prediction of initial search point on mobile devices

global MATLAB — Tue, 03 Apr 2018 08:33:41 +0000

Common feature tracking algorithms, such as SIFT and SURF, are fairly slow in runtime due to the processing of a large amount of external data. If the object is sufficiently small, outside noise may throw off the object detection device without prior knowledge. Machine learning, especially Markov chains, can use prior knowledge to turn a computationally expensive task into […]

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Android project about real time edge based markerless tracking

global MATLAB — Tue, 03 Apr 2018 08:21:28 +0000

In this project, we present our methods for implementing real-time edge based markerless tracking of a simple cube on an Android device. The algorithm is capable of tracking the object under slow camera movement and with the absence of clutter in the scene. We show that there is reasonable tracking, and list the flaws of our system. We suggest that […]

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OpenCV code for automatic micro egg detection in Android

global MATLAB — Sun, 01 Apr 2018 20:05:52 +0000

The algorithm pipeline is divided into two stages: filter detection and bead detection. Initial prototypes were designed in MATLAB and fully implemented in OpenCV for Windows and Android. The algorithm was implemented and tested on Android with OpenCV. For the toy example given below, there were 33 connected components detected, with 20 true positives, 13 false positives, 4 false negatives, and […]

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Android project for translating signs from English to Chinese with autovoicing

global MATLAB — Sun, 01 Apr 2018 15:20:49 +0000

In this project, we develop an Android application that can translate signs from English to Chinese or other foreign languages with autovoicing. In our application, the translation of the signs can be immediately performed by first placing the sign in the camera and then pressing the search button. This application can be used for sign recognition at airports or on road, […]

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Android project for video stabilization algorithm

global MATLAB — Sat, 31 Mar 2018 13:09:30 +0000

We were able to iterate and improve on our goal of implementing a video stabilization algorithm in real time. While we were quickly able to identify the basic algorithm that we wished to implement, when we first tested our implementation we realized that we were dealing with far different constraints then explained in our readings. Since we wished to work in […]

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