In response to the optimal extraction of DCT coefficients in facial images, the author
proposes a DCT coefficient extraction method based on discriminant analysis. Based on the …

With the rapid development of the national power industry, smart grids have become a major
direction of current power system reform and technological innovation. This article adopted a …

We introduce the DCT-mod2 facial feature extraction technique which utilizes polynomial
coefficients derived from 2D DCT coefficients of spatially neighbouring blocks. We evaluate …

With the widespread application of traditional electric power customer service in recent
years, the scale of users continues to increase, and the traffic pressure on the …

Discrete cosine transform (DCT) is a powerful transform to extract proper features for face
recognition. After applying DCT to the entire face images, some of the coefficients are …

Discrete cosine transform (DCT) is an effective method to extract proper features for face
recognition. Discrete cosine transform can only map the resource data to another data field …

This letter presents a new feature extraction method based on the private energy map (PEM)
technique to utilize the energy characteristics of a facial image. Compared with a non‐facial …

The current conventional security authentication methods for power monitoring system
operation and maintenance scenarios mainly verify the user's identity by means of certificate …

Face Recognition Based on DCT and PCA Page 1 X. Wan (Ed.): Electrical Power Systems and
Computers, LNEE 99, pp. 451–455. springerlink.com © Springer-Verlag Berlin Heidelberg 2011 …

摘要 The objectives of this paper are how to select the most effective DCT coefficients as
recognition features and how to extract face features from locality and globality. A face …