Boosting Image Orientation Detection with Indoor vs. Outdoor Classification

نویسندگان

  • Lei Zhang
  • Mingjing Li
  • HongJiang Zhang
چکیده

Automatic detection of image orientation is a very important operation in photo image management. In this paper, we propose an automated method based on the boosting algorithm to estimate image orientations. The proposed method has the capability of rejecting images based on the confidence score of the orientation detection. Also, images are classified into indoor and outdoor, and this classification result is used to further refine the orientation detection. To select features more sensitive to the rotation, we combine the features by subtraction operation and select the most useful features by boosting algorithm. The proposed method has several advantages: small model size, fast classification speed, and effective

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Indoor vs outdoor classification of consumer photographs using low-level and semantic features

Scene categorization to indoor vs outdoor may be approached by using low-level features for inferring high-level information about the image. Low-level features such as color and texture have been used extensively in image understanding research, however, they cannot solve the problem completely. In this paper, we propose the use of a Bayesian network for integrating knowledge from low-level an...

متن کامل

Master’s Thesis Pre-Proposal: (Indoor versus Outdoor Scene Classification)

Over the last few years the interest in the research problem of indoor vs. outdoor scene classification[2] has grown significantly, due to its importance in many applications such as Content Based Image Retrieval (CBIR) or Query by Image Content (QBIC), image data organization, robotics, and photography, thus providing a strong motivation for this project. For an example, knowledge of a scene t...

متن کامل

Knowing Where I Am: Exploiting Multi-Task Learning for Multi-view Indoor Image-based Localization

Indoor localization has attracted a large amount of applications in mobile and robotics area, especially in vast and sophisticated environments. Most indoor localization methods are based on cellular base stations and WiFi signals. Such methods require users to carry additional equipment. Localization accuracy is largely based on the beacon distribution. Image-based localization is mainly appli...

متن کامل

Manhattan World: Compass Direction from a Single Image by Bayesian Inference

When designing computer vision systems for the blind and visually impaired it is important to determine the orientation of the user relative to the scene. We observe that most indoor and outdoor (city) scenes are designed on a Manhattan three-dimensional grid. This Manhattan grid structure puts strong constraints on the intensity gradients in the image. We demonstrate an algorithm for detecting...

متن کامل

Detecting Semantic Concepts In Digital Photographs: Low-level Features Vs. Non-Homogeneous Data Fusion

Semantic concepts, such as faces, buildings, and other real world objects, are the most preferred instrument that humans use to navigate through and retrieve visual content from large multimedia databases. Semantic annotation of visual content in large collections is therefore essential if ease of access and use is to be ensured. Classification of images into broad categories such as indoor/out...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2002