Multimedia Technologies (Unit3&4)

A user is searching for videos related to a specific topic in a large video database. Which feature extraction technique is most effective for analyzing video content and generating metadata?

• Histogram-based color descriptors

• Optical flow analysis

• Motion vectors extraction

• Temporal segmentation

An image processing engineer is implementing lossy compression for a collection of high-resolution images. Which lossy graphic compression technique is most commonly used for photographic images?

• Run-length encoding (RLE)

• Vector quantization

• Discrete cosine transform (DCT)

• Fractal compression

A software engineer is optimizing a multimedia application for performance. Which characteristic of the MMX instruction set is most beneficial for enhancing the application's speed?

• Support for parallel execution of SIMD operations

• Built-in cryptographic acceleration

• Extended register set for multimedia data

• Enhanced floating-point arithmetic capabilities

A user is connecting multiple multimedia devices to their computer system. Which I/O interface would be most suitable for achieving high-speed data transfer between these devices?

• USB2.0

• USB3.1

• IEEE1394 (FireWire)

• Serial ATA (SATA)

A multimedia content creator is designing a database to store various types of media files. Which database design principle should they prioritize to ensure efficient retrieval and management of multimedia data?

• Use of relational database management system (RDBMS)

• Normalization to minimize data redundancy

• Implementation of multimedia data types in the schema

• Denormalization for faster query processing

A digital audio engineer is designing a speech compression algorithm for a real-time communication system. Which sampling variable is most critical for preserving speech quality while minimizing data size?

• Sampling rate

• Bit depth

• Compression ratio

• Signal-to-noise ratio

A company is building a video-on-demand (VoD) platform to deliver high-quality streaming content to users. Which design consideration is crucial for ensuring a seamless viewing experience with minimal buffering?

• Implementation of adaptive bitrate streaming

• Use of lossless video compression algorithms

• Deployment of edge caching servers

• Integration of real-time transcoding capabilities

A user is searching for relevant documents in a large text corpus using content-based information retrieval. Which technique would be most effective for matching the user's query with textual content?

• Keyword-based indexing

• Latent semantic indexing (LSI)

• Soundex algorithm

• Vector space model

A multimedia network administrator is tasked with optimizing Quality of Service (QoS) for real-time video streaming over a network. Which QoS parameter is most crucial for ensuring minimal latency and jitter?

• Bandwidth

• Packet loss rate

• Throughput

• Round-trip time (RTT)

A researcher is developing an image retrieval system capable of finding visually similar images from a large database. Which feature extraction method is most suitable for comparing image content?

• Histogram of Oriented Gradients (HOG)

• Scale-Invariant Feature Transform (SIFT)

• Principal Component Analysis (PCA)

• Bag-of-Words model