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Current trend of digital convergence leads to the need of the video decoder that can support the multiple standards such as H.264, MPEG-4 and VC-1. We implemented a circuit to perform the transform and quantization operations for the three video compression standards. Instead of designing the circuit for each standard separately, we analyzed the transform and quantization operations in detail to find...
This paper presents an AMBA-based IP to perform the forward and inverse transform and quantization required in the H.264 video compression standard. The transform and quantization circuit was optimized for area and performance. The AHB wrapper was added to the circuit for the AMBA-based operation. The user of the IP can specify how long the bus may be occupied by the IP and also where the video data...
This paper presents the architecture and design of a CODEC circuit that can compress and reconstruct 4:2:2 color VGA video images using two-dimensional DWT. For real-time operation and low-power consumption, we modified the traditional Mallat's sub-band coding method to reduce the amount of computation required in two-dimensional DWT. Using the modified method, two-dimensional DWT can be performed...
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