Learn More
Seasonal fruits, like mango (Mangifera Indica L.), are harvested from gardens or farms in batches; the mangoes present in each batch are not uniformly matured, therefore, sorting of mangoes into different groups is necessary for transporting them into different locations. With this background, this paper proposes a machine vision-based system for(More)
Face recognition is an active research area in the field of computer vision and pattern recognition. Despite of considerable research and developments a time and memory efficient method that is robust to different factors e.g. facial expressions, pose, illumination, age, etc. remains a major challenges. This paper presents expressions invariant face(More)
1047-3203/$ see front matter 2012 Elsevier Inc. A http://dx.doi.org/10.1016/j.jvcir.2012.09.001 ⇑ Corresponding author. Fax: +91 33 23357254. E-mail addresses: arpitamchatterjee@gmail.com, ar c.in (A. Chatterjee). Grayscale digital halftoning produces bi-level representation of original continuous tone images. This process plays pivotal role for devices(More)
Tea quality assessment is a difficult task because of the presence of innumerable compounds and their diverse contribution to tea quality. As a result, instrumental evaluation of tea quality is not practiced in the industry, and tea samples are assessed by experienced tea tasters. There had been a very few reports where an electronic tongue has been used(More)
Fermentation process in black tea manufacturing plays the key role in determining the quality of finished tea. During this process, a complex chain of biochemical changes occurs and the process should be terminated once the optimum fermentation point is reached. Present day practice for detection of optimum fermentation point is purely subjective, and is(More)
The foregoing thesis is hereby approved as a creditable study of an engineering subject carried out and presented in a manner satisfactory to warrant its acceptance as a prerequisite to the degree for which it has been submitted. It is understood that by this approval the undersigned does not necessarily endorse or approve any statement made, opinion(More)
The process of evaluating the quality of black tea by human sensory panel known as “Tea Tasters” is very subjective and its accuracy is questionable. As a result various instrumental setups have been investigated in the past for quality determination of black tea. The electronic nose is one such instrument, consisting of sensor arrays, odor(More)