I present my submission MM1 to the Chord Estimation Task of the 2010 Music Information Retrieval Evaluation eXchange (MIREX 2010). The front-end chroma generation is based on a new implementation of NNLS Chroma as a Vamp plugin. The higher level model is very simple, and a very similar method is implemented as the nonHMM version of the Chordino plugin. These two plugins are now available at htt...

Chroma from luma (CfL) prediction is a new and promising chroma-only intra predictor that models chroma pixels as a linear function of the coincident reconstructed luma pixels. In this paper, we present the CfL predictor adopted in Alliance Video 1 (AV1), a royaltyfree video codec developed by the Alliance for Open Media (AOM). The proposed CfL distinguishes itself from prior art not only by re...

ABSTRACT: This paper proposes an illuminant-adaptive reproduction method using light adaptation and flare conditions for a mobile display. Mobile displays, such as PDAs and cellular phones, are viewed under various lighting conditions. In particular, images displayed in daylight are perceived as quite dark due to the light adaptation of the human visual system, as the luminance of a mobile disp...

SUMMARY We describe ChromA, a web-based alignment tool for chromatography-mass spectrometry data from the metabolomics and proteomics domains. Users can supply their data in open and standardized file formats for retention time alignment using dynamic time warping with different configurable local distance and similarity functions. Additionally, user-defined anchors can be used to constrain and...

To mitigate privacy concerns, scrambling can be used to conceal face regions present in surveillance video content. Given that lightweight scrambling tools may not protect chroma information in order to limit bit rate overhead in heterogeneous usage environments, this paper investigates how the presence of non-scrambled chroma information in face regions influences the effectiveness of automati...

CHROMA is a fully functional prototype content-based image retrieval system designed as part of the support mechanism for a digital photographic library. The paper outlines CHROMA's colour based indexing scheme and the access system which combines a Thumbnail Viewer, index structure Navigation Tool, a Sketch Tool and Query-by-Image-Example tool. Some recent results of evaluations of the effecti...

This paper describes a technique for performing intra prediction of the chroma planes based on the reconstructed luma plane in the frequency domain. This prediction exploits the fact that while RGB to YUV color conversion has the property that it decorrelates the color planes globally across an image, there is still some correlation locally at the block level. Previous proposals compute a linea...

In this paper, we evaluate a set of methods for combining features for cover song identification. We first create multiple classifiers based on global tempo, duration, loudness, beats and chroma average features, training a random forest for each feature. Subsequently, we evaluate standard combination rules for merging these single classifiers into a composite classifier based on global feature...

In the traditional representation, musical pitch is a helix – a single valued function existing in three space, much like a stretched coil spring (see Ueda & Ohgushi, 1987 for a review). The pitch helix has a circular dimension, referred to as "tone chroma", and a vertical dimension referred to as "toneheight", and pitch rises one octave per revolution of the circular dimension. This representa...

In television and movie industry a so-called "blue box" technology is used, when an object in the foreground (e. g. a person) needs to be placed on a different background (e. g. a computer-generated 3D scene). However, it is often not economically justifiable to build a "blue box", therefore other methods can be used to extract the foreground object and remove or replace bac...