Ubrzavanje kodiranja videa na dron uređajima informacijama o kretanju drona

undergraduate thesis

• Author: Jan Kozina
• Mentor: Daniel Hofman (mentor)
• Committee member: Daniel Hofman (član povjerenstva)
• Committee member: Luka Mrković (član povjerenstva)
• Committee member: Stipe Mišković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2024-07-02, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing

Abstract

Vremensko izvođenje kodiranja videa potrebno je smanjiti na najmanje moguće vrijednosti. To se postiže korištenjem algoritama procjene pokreta (engl. Motion estimation) gdje se pokušava smanjiti vremenska redundancija elemenata slike. Algoritmi procjene pokreta predstavljaju pretraživanje slike različitim oblicima: „Diamond Search“ u obliku dijamanta i „Three Step Search“ u osam smjerova u 2D koordinatnom sustavu slike. Implementacije kodera koje koriste ove algoritme su open-source koder Kvazaar te Bolt65. Također potrebno je implementirati algoritme na FPGA platformu u obliku pločice PYNQ Z1 kako bi se koristili u ugradbenim sustavima. Za taj zadatak koriste se posebni programski alati te, naposlijetku, usporedbom rezultata dolazimo do zaključaka.

Abstract (english)

The time required for video encoding needs to be reduced to the minimum possible values. This is achieved by using motion estimation algorithms, which aim to reduce the temporal redundancy of image elements. Motion estimation algorithms involve searching the image in different patterns: "Diamond Search" in a diamond shape and "Three Step Search" in eight directions in the 2D coordinate system of the image. Encoder implementations that use these algorithms include the open-source encoders Kvazaar and Bolt65. It is also necessary to implement these algorithms on the FPGA platform in the form of the PYNQ Z1 board to be used in embedded systems. Special software tools are used for this task, and finally, comparing the results will give us conclusions.

• Keywords: H.265; kodiranje videa; FPGA; HLS; procjena pokreta; „Diamond Search“; Kvazaar; Bolt65
• Keywords (english): H.265; video encoding; FPGA; HLS; motion estimation; „Diamond Search“; Kvazaar; Bolt65
• Language: croatian
• URN:NBN: urn:nbn:hr:168:571654
• Study programme: Title: Computing; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2024-10-12 21:09:59