Research Article

Lossless and Low-Power Image Compressor for Wireless Capsule Endoscopy

Table 7

Comparison of Hardware cost with other schemes.

Die size ( 𝐦 𝐦 × 𝐦 𝐦 )Core Size (mm2)Cell countGate countBuffer memoryLatency (cc)Power (mW)

[14] 3 . 4 × 3 . 3 11.219.5 K2.19 KB 𝑤 11.302
[15] 3 . 0 × 4 . 2 90 K103 KB 𝑤 16.2
[9]0.3263,466Yes1810.0
[11] 1 . 2 5 × 1 . 2 5 0.38431 KYes14.92
[28]60 KYes0.916

Our 0 . 6 8 × 0 . 6 8 0.02566182 K010.018

1 𝑤 : width of input frame; for example., for a 2 5 6 × 2 5 6 image, the latency is 256; 2includes other digital components, such as microcontroller, I2C, and so forth.