| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
New compression technologies are highly desirable to accommodate new video specifications such as 4K and 8K. The new international video coding standard H.265/HEVC, finalized in 2013, is capable of delivering a compression ratio of 200 times. However, the high compression ratio is achieved by employing many new and computation intensive features, which significantly increases the difficulty in realizing low-energy-consumption implementations. By developing efficient algorithms and architectures, this research aims at a remarkable reduction of energy consumption of motion estimation, which is the most energy consuming component of HEVC video compression. Through a series of innovative technologies such as integer and fractional motion estimation algorithms, alternating asymmetric search range assignment and mode filtering, this research has successfully reduced over 75% of energy consumption for an implementation of HEVC compression.
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