Signal Processing Image Processing Audio Processing Video Processing Sistem Multimedia Signal Processing Image Processing Audio Processing Video Processing

Sistem Multimedia

Istilah “Multimedia” Terdiri dari dua bagian : Multi (multus) : “numerous, multiple” Media (medium): “middle, center”. Agen untuk sesuatu, digunakan untuk mendistribusikan dan merepresentasikan informasi. Secara umum, multimedia dapat didefinisikan sebagai penggunaan multiple agent (agen ganda) seperti teks, audio, video, citra untuk mengirimkan dan mempresentasikan informasi kepada pengguna.

Istilah “Media” Dapat dikategorikan menjadi beberapa kriteria : Perception media Representation media Presentation media Storage media Transmission media

Perception Media “Bagaimana manusia memperoleh informasi” Kita memperoleh informasi dari apa yang kita lihat dan apa yang kita dengar Media Visual: Text, graphics, images, video Media Audio: Music, sound and voice

Representation Media “Bagaimana informasi diencode di dalam komputer” Bagaimana informasi direpresentasikan secara internal kepada komputer. Beberapa Pilihan : Text is encoded in ASCII An audio data stream in PCM (Pulse Coded Modulation) Image in JPEG format Video in MPEG format

Presentation Media “Media apa yang digunakan untuk memasukkan ke komputer dan mengeluarkan informasi dari komputer” Merujuk ke device-device fisik yang digunakan sistem untuk mereproduksi informasi untuk manusia, misal device audio dan device visual. Input: Keyboards, cameras, microphone, Head Mounted Device (for VR input) Output: Paper, monitors, loudspeakers

Storage Media “Dimana informasi disimpan” Merujuk ke berbagai macam benda yang menyimpan data komputer, seperti magnetic tapes, magnetic disks, or digital optical disks (CD-ROM, CD, DVD)

Transmission Media “Media yang digunakan untuk mentransmisikan data” Merujuk ke benda fisik seperti berbagai jenis kabel, (coaxial cable, twisted pair, fiber optics), radio tower, satellite – yang mentransmisikan sinyal telekomunikasi. Perbedaan antara media transmisi dan media penyimpanan adalah kapabilitas untuk mentransfer dara secara kontinyu melalui jaringan komputer.

Bagaimana komputer melihat? Image Processing Bagaimana komputer melihat?

Key Stages in Digital Image Processing Image Restoration Morphological Processing Image Enhancement Segmentation Image Acquisition Object Recognition Representation & Description Problem Domain Colour Image Processing Image Compression

Key Stages in Digital Image Processing: Image Aquisition Image Restoration Morphological Processing Image Enhancement Segmentation Image Acquisition Object Recognition Images taken from Gonzalez & Woods, Digital Image Processing (2002) Representation & Description Problem Domain Colour Image Processing Image Compression

Key Stages in Digital Image Processing: Image Enhancement Image Restoration Morphological Processing Image Enhancement Segmentation Image Acquisition Object Recognition Images taken from Gonzalez & Woods, Digital Image Processing (2002) Representation & Description Problem Domain Colour Image Processing Image Compression

Key Stages in Digital Image Processing: Image Restoration Morphological Processing Image Enhancement Segmentation Image Acquisition Object Recognition Images taken from Gonzalez & Woods, Digital Image Processing (2002) Representation & Description Problem Domain Colour Image Processing Image Compression

Key Stages in Digital Image Processing: Morphological Processing Image Restoration Morphological Processing Image Enhancement Segmentation Image Acquisition Object Recognition Images taken from Gonzalez & Woods, Digital Image Processing (2002) Representation & Description Problem Domain Colour Image Processing Image Compression

Key Stages in Digital Image Processing: Segmentation Image Restoration Morphological Processing Image Enhancement Segmentation Image Acquisition Object Recognition Images taken from Gonzalez & Woods, Digital Image Processing (2002) Representation & Description Problem Domain Colour Image Processing Image Compression

Key Stages in Digital Image Processing: Object Recognition Image Restoration Morphological Processing Image Enhancement Segmentation Image Acquisition Object Recognition Images taken from Gonzalez & Woods, Digital Image Processing (2002) Representation & Description Problem Domain Colour Image Processing Image Compression

Key Stages in Digital Image Processing: Representation & Description Image Restoration Morphological Processing Image Enhancement Segmentation Image Acquisition Object Recognition Images taken from Gonzalez & Woods, Digital Image Processing (2002) Representation & Description Problem Domain Colour Image Processing Image Compression

Key Stages in Digital Image Processing: Image Compression Image Restoration Morphological Processing Image Enhancement Segmentation Image Acquisition Object Recognition Representation & Description Problem Domain Colour Image Processing Image Compression

Key Stages in Digital Image Processing: Colour Image Processing Image Restoration Morphological Processing Image Enhancement Segmentation Image Acquisition Object Recognition Images taken from Gonzalez & Woods, Digital Image Processing (2002) Representation & Description Problem Domain Colour Image Processing Image Compression

Aplikasi dari Image Processing

Document Handling

Signature Verification

Biometrics

Fingerprint Verification / Identification

Fingerprint Identification Research at UNR Minutiae Matching Delaunay Triangulation

Object Recognition

Object Recognition Research reference view 1 reference view 2 novel view recognized

Indexing into Databases Shape content

Indexing into Databases (cont’d) Color, texture

Target Recognition Department of Defense (Army, Airforce, Navy)

Interpretation of Aerial Photography Interpretation of aerial photography is a problem domain in both computer vision and registration.

Autonomous Vehicles Land, Underwater, Space

Traffic Monitoring

Face Detection

Face Recognition

Face Detection/Recognition Research at UNR

Facial Expression Recognition

Face Tracking

Face Tracking (cont’d)

Hand Gesture Recognition Smart Human-Computer User Interfaces Sign Language Recognition

Human Activity Recognition

Medical Applications skin cancer breast cancer

Morphing

Inserting Artificial Objects into a Scene

Virtual Reality & Motion Tracking